CN211409279U - Balloon passage device - Google Patents

Abstract

The utility model provides a sacculus channel device, including flexible lead out subassembly and with flexible lead out subassembly fixed connection's scope, flexible lead out subassembly includes the sheath pipe, set up in the handle of sheath pipe one end, set up in the sheath head of sheath pipe other end, be used for getting into the pathological change position and form retractable sacculus and the mount pad of leading out the passageway for the pathological change position, the sacculus cover is located the surface of sheath pipe and is located between mount pad and the sheath head, the mount pad includes hollow main pipe body and first branch pipe and the second branch pipe that links to each other with main pipe body respectively, main pipe body cover is established on the sheath pipe, wherein, first branch pipe connects filling device outward, the external nerve navigation subassembly of second branch pipe; the endoscope is fixedly connected with the handle. The utility model provides a sacculus channel device reduces the damage of operation in-process to patient's normal brain tissue, shortens the convalescence, improves patient's recovered quality and quality of life.

Description

Balloon passage device

Technical Field

The utility model belongs to the technical field of medical instrument, more specifically say, relate to a sacculus channel device.

Background

Neurosurgery is a branch of surgery, and is a branch of surgery which is used for researching the nervous system of a human body, such as the brain, the spinal cord and the peripheral nervous system, and the affiliated institutions related to the nervous system by applying a unique neurosurgery research method on the basis of taking an operation as a main treatment means; neurosurgery is mainly used for treating diseases of nervous systems such as brain, spinal cord and the like caused by trauma, and focal surgery for brain surgery belongs to a typical case in neurosurgery. In the prior art, the safe operation mode for clearing focus in brain surgery is to adopt a balloon catheter to flexibly expand and retract brain tissue, and then to put a sheath tube to isolate the brain tissue to establish an operation tubular channel to clear focus.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sacculus access device to solve the brain surgery that exists among the prior art and clear away the focus operation and draw the brain tissue in-process at the flexible expansion of the sacculus pipe that the puncture was intervened, the change of peripheral brain tissue of unable visual observation causes the technical problem of great iatrogenic damage to brain tissue.

In order to achieve the above object, the utility model adopts the following technical scheme: providing a balloon channel device, which comprises a flexible retracting component and an endoscope fixedly connected with the flexible retracting component, wherein the flexible retracting component comprises a sheath tube, a handle arranged at one end of the sheath tube, a sheath guiding head arranged at the other end of the sheath tube, a retractable balloon and a mounting seat, the retractable balloon is used for entering a lesion part and forming a retracting channel for the lesion part, the balloon is sleeved on the outer surface of the sheath tube and is positioned between the mounting seat and the sheath guiding head, the mounting seat comprises a hollow main tube body, a first branch tube and a second branch tube, the first branch tube and the second branch tube are respectively connected with the main tube body, the main tube body is sleeved on the sheath tube, the first branch tube is externally connected with a filling device, and the second branch tube is externally connected with a nerve navigation component; the endoscope is fixedly connected with the handle.

Further, the flexible retracting assembly further comprises a sleeve arranged on the outer surface of the sheath tube, one end of the sleeve is fixedly connected with the mounting seat, and the other end of the sleeve is fixedly connected with the balloon.

Furthermore, the outer surface of the main pipe body is wrapped by one end, connected with the mounting seat, of the sleeve, the outer surface of the end portion of the sleeve is wrapped by one end, connected with the sleeve, of the balloon, the flexible retracting assembly further comprises a first fastener for fixedly connecting the sleeve with the balloon, and the outer surface of the joint of the sleeve and the balloon is sleeved with the first fastener.

Furthermore, the flexible retracting assembly further comprises a cap fixedly connected with the main pipe body, the cap is provided with a limiting groove used for limiting the moving range of the handle relative to the cap, and a limiting protrusion movably connected with the limiting groove is formed on the surface of the inner wall of the handle in a protruding mode.

Further, the flexible retracting assembly further comprises a sealing ring arranged in the main pipe body, and the sealing ring is arranged between the mounting seat and the cap.

Further, the sheath with the tip that the sheath head is connected is provided with first connecting portion, the sheath head with the one end that the sheath is connected be provided with the second connecting portion of first connecting portion butt, the subassembly is led in the flexibility still including being used for fixed connection the sheath with the second fastener of sheath head, the second fastener cover is located first connecting portion with the surface of second connecting portion.

Furthermore, the nerve navigation assembly comprises a navigation frame fixedly connected with the second branch pipe and a nerve navigation system fixedly connected with the navigation frame, and a first anti-skid part is arranged on the surface of the second branch pipe connected with the navigation frame.

Furthermore, the navigation frame comprises a clamping piece fixedly connected with the nerve navigation system and a pressing piece fixedly connected with the clamping piece and used for controlling the clamping piece to open and close, and a second anti-skid part is arranged on the surface of the clamping piece movably connected with the second branch pipe.

Further, the balloon is a compliant or semi-compliant balloon, and the shape of the balloon is columnar, gourd-shaped, peanut-shaped or conical.

Furthermore, the sheath guiding head is in a transparent spherical top conical shape, and can play a role in enlarging the observation visual angle of the convex lens for the endoscope observation.

The utility model provides a sacculus passageway device's beneficial effect lies in: compared with the prior art, the utility model discloses flexible subassembly and scope fixed connection of leading out of sacculus channel device, flexible subassembly of leading out includes the sheath pipe, set up respectively in the handle and the guide sheath head at the relative both ends of sheath pipe, be used for getting into the pathological change position and form collapsible sacculus and the mount pad of leading out the passageway for the pathological change position, the surface that the sheath pipe was located to the sacculus cover just is located between mount pad and the guide sheath head, sufficient device and nerve navigation subassembly are connected to the mount pad, accurate location through the nerve navigation subassembly, pierce under the direct vision of scope and intervene to the brain tissue, the flexible expansion of sacculus leads out the brain tissue and establishes safe operation passageway, realize confirming the pathological change position fast accurately, reduce the damage to patient's normal brain tissue in the operation process, reduce the operation risk, shorten the recovery period, improve patient's recovered quality and life quality.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions 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 without inventive labor.

Fig. 1 is a schematic perspective view of a balloon channel device according to an embodiment of the present invention;

fig. 2 is a schematic diagram of an explosion structure of a balloon channel device according to an embodiment of the present invention;

fig. 3 is a schematic side view of a balloon channel device according to an embodiment of the present invention;

FIG. 4 is a cross-sectional structural view taken along line A-A of the balloon access device shown in FIG. 3;

FIG. 5 is an enlarged view of the structure at B in FIG. 4;

fig. 6 is a schematic perspective view of a cap of a balloon channel device according to an embodiment of the present invention;

fig. 7 is a schematic perspective view of a handle of a balloon channel device according to an embodiment of the present invention;

fig. 8 is a first schematic operation diagram of a method for using a balloon access device according to an embodiment of the present invention;

fig. 9 is a second schematic operation diagram of a method for using a balloon access device according to an embodiment of the present invention;

fig. 10 is a third schematic operation diagram of a method for using a balloon channel device according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

1: an endoscope 2: flexible retractor assembly

21: sheath 211: first connecting part

22: the handle 221: spacing protrusion

23: sheath guiding head 231: second connecting part

24: the balloon 25: mounting seat

251: the main tube 252: first branch pipe

253: second branch pipe 2531: first anti-slip part

26: the sleeve 27: first fastener

28: second fastener 29: cap cap

291: limiting groove 3: neural navigation assembly

31: the navigation frame 311: clamping piece

312: the pressing piece 32: neural navigation system

4: and (5) sealing ring: surgical access

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

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 be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship 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 device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting 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 one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1 to 2 together, the balloon 24 channel device provided in this embodiment includes a flexible retracting component 2 and an endoscope 1 fixedly connected to the flexible retracting component 2, the flexible retracting component 2 includes a sheath 21, a handle 22 disposed at one end of the sheath 21, a sheath head 23 disposed at the other end of the sheath 21, a collapsible balloon 24 for entering a diseased region and forming a retracting channel for the diseased region, and a mounting seat 25, the balloon 24 is sleeved on an outer surface of the sheath 21 and located between the mounting seat 25 and the sheath head 23, the mounting seat 25 includes a hollow main tube 251 and a first branch tube 252 and a second branch tube 253 respectively connected to the main tube 251, the main tube 251 is sleeved on the sheath 21, wherein the first branch tube 252 is externally connected to a filling device, and the second branch tube 253 is externally connected to a nerve navigation component 3; the endoscope 1 is fixedly connected with a handle 22.

The balloon 24 channel device comprises a flexible retracting component 2 and an endoscope 1, wherein the flexible retracting component 2 comprises a sheath tube 21, a handle 22 and a sheath head 23 which are respectively arranged at two opposite ends of the sheath tube 21, a retractable balloon 24 for entering a lesion part and forming a retracting channel for the lesion part, and a mounting seat 25, the balloon 24 is sleeved on the outer surface of the sheath tube 21 and is positioned between the mounting seat 25 and the sheath head 23, the mounting seat 25 is connected with a filling device and a nerve navigation component 3, and the precise positioning of the nerve navigation component 3 is realized, puncture intervention is carried out to the brain tissue under the direct vision of scope 1, and sacculus 24 flexible expansion is led out the brain tissue and is established safe operation passageway 5, realizes confirming pathological change position fast accurately, reduces the injury to patient's normal brain tissue among the operation process, reduces the operation risk, shortens the recovery phase, improves patient's recovered quality and quality of life.

Referring to fig. 1 to fig. 2, as a specific implementation of the balloon 24 channel device provided in this embodiment, the balloon 24 channel device includes a flexible retracting component 2 and an endoscope 1 fixedly connected to the flexible retracting component 2, the endoscope 1 is fixedly connected to the flexible retracting component 2, the brain tissue is punctured and intervened under direct vision of the endoscope 1, the balloon 24 is flexibly expanded to retract the brain tissue to establish a safe operation channel 5, so that changes of peripheral brain tissue can be observed in real time, and iatrogenic injuries to the brain tissue caused by operations can be reduced. The flexible retracting assembly 2 comprises a sheath tube 21, a handle 22 arranged at one end of the sheath tube 21, a sheath head 23 arranged at the other end of the sheath tube 21, a contractible balloon 24 used for entering a lesion part and forming a retracting channel for the lesion part, and a mounting seat 25, wherein the balloon 24 is sleeved on the outer surface of the sheath tube 21 and is positioned between the mounting seat 25 and the sheath head 23; preferably, scope 1 and handle 22 fixed connection, scope 1 include with handle 22 fixed connection's fixed part and with fixed part fixed connection's external portion, be provided with the lens in the fixed part of scope 1, preferably, the lens of scope 1 is convex mirror, has the amplification effect. The fixed part through scope 1 is with scope 1 and handle 22 fixed connection to through the external portion of scope 1 and lead sheath head 23 fixed connection, realize carrying out the puncture intervention to the brain tissue under scope 1's direct vision, sacculus 24 flexible expansion is led out the brain tissue and is established safe operation passageway 5.

Furthermore, a first connecting portion 211 is arranged at the end of the sheath 21 connected to the sheath head 23, a second connecting portion 231 abutted to the first connecting portion 211 is arranged at the end of the sheath head 23 connected to the sheath 21, the flexible retracting assembly 2 further comprises a second fastening member 28 for fixedly connecting the sheath 21 to the sheath head 23, and the second fastening member 28 is sleeved on the outer surfaces of the first connecting portion 211 and the second connecting portion 231, where the specific structure and material of the second fastening member 28 are not limited, and the endoscope 1 is effectively prevented from being contaminated by brain tissue through the stable sealing connection between the sheath 21 and the sheath head 23; the material and specific structure of the sheath head 23 are not limited herein, and the sheath head 23 may be made of a light-transmitting material, preferably, the sheath head 23 is made of a transparent cone-shaped dome, and the sheath head 23 is made of a highly transparent PC material, so that the sheath head 23 can move in the brain tissue conveniently, and the viewing angle can be enlarged by the convex lens for the observation of the endoscope 1.

Furthermore, the flexible retracting component 2 and the nerve navigation component 3 are wirelessly positioned and connected (equal to the navigation needle of the nerve system), after being matched and calibrated with the nerve navigation system 32, the puncture path and the relative position of the positioning can be fed back on the display screen of the nerve navigation system 32 in real time, accurate guidance is provided for puncture, a channel for observing and protecting the endoscope 1 is provided, the lesion part can be rapidly and accurately confirmed, the damage to the normal brain tissue of a patient in the operation process is reduced, the recovery period is shortened, and the rehabilitation quality and the life quality of the patient are improved. The nerve navigation assembly 3 comprises a navigation frame 31 fixedly connected with the second branch pipe 253 of the mounting seat 25 and a nerve navigation system 32 fixedly connected with the navigation frame 31; the connection manner between the navigation frame 31 and the second branch 253 is not limited herein; preferably, the navigation frame 31 comprises a clamping piece 311 fixedly connected with the neuronavigation system 32 and a pressing piece 312 fixedly connected with the clamping piece 311 and used for controlling the clamping piece 311 to open and close, the second branch pipe 253 is clamped by a clamping part of the navigation frame 31, and the neuronavigation assembly 3 is fixedly connected to the flexible retraction assembly 2; the clamping of the clamping piece 311 to the second branch pipe 253 can be loosened by pressing the pressing piece 312 on the navigation frame 31, the nerve navigation assembly 3 is detached from the flexible retracting assembly 2, the operation is convenient and fast, the time consumption of medical personnel in the assembling and disassembling process is effectively reduced, and the operation efficiency is improved. The surface of the second branch 253 connected to the navigation frame 31 is provided with a first anti-slip portion 2531, and the specific structure of the first anti-slip portion 2531 is not limited herein, and preferably, the first anti-slip portion 2531 is an external thread provided on the surface of the second branch 253 connected to the navigation frame 31, which is beneficial to increase the friction force between the navigation frame 31 and the second branch 253 and stabilize the connection between the navigation frame 31 and the second branch 253. The surface of the clamping member 311 movably connected with the second branch pipe 253 is provided with a second anti-slip portion, and the specific structure of the second anti-slip portion is not limited herein, and preferably, the second anti-slip portion is an internal thread arranged on the surface of the clamping member 311 movably connected with the second branch pipe 253, which is beneficial to increasing the friction force between the navigation frame 31 and the second branch pipe 253, and further stabilizes the connection between the navigation frame 31 and the second branch pipe 253.

Further, the material of the balloon 24 in this embodiment may be natural latex, Polyurethane (PU), thermoplastic elastomer polymer material, silicone, or the like. The balloon 24 is a compliant or semi-compliant balloon 24, as desired. The material and specific structure of the balloon 24 are not limited, and the balloon 24 is in the shape of a column, a gourd, a peanut or a cone; the balloon 24 is approximately the same size from proximal to distal, cylindrical, waist-drum shaped, or the like; the proximal end of the balloon 24 is slightly larger in size than the distal end thereof, and is gourd-shaped or the like; the proximal and distal ends of the balloon 24 are substantially the same shape and become less constricted between the proximal and distal ends, being peanut-shaped or the like; the balloon 24 tapers in size from the proximal end to the distal end, being conical or the like.

Referring to fig. 3 to 5, in this embodiment, the mounting seat 25 of the flexible retracting assembly 2 includes a hollow main tube 251, and a first branch tube 252 and a second branch tube 253 connected to the main tube 251, respectively, the main tube 251 is sleeved on the sheath tube 21, wherein the first branch tube 252 is externally connected to an inflating device for connecting the balloon 24 to inflate and evacuate contrast medium or saline, and the second branch tube 253 is externally connected to the neuronavigation assembly 3, so as to achieve accurate positioning through the neuronavigation assembly 3, perform puncture intervention on brain tissue under direct vision of the endoscope 1, and the balloon 24 flexibly expands to retract the brain tissue to establish the safe operation channel 5, thereby achieving fast and accurate determination of a diseased region, reducing damage to normal brain tissue of a patient during an operation, and reducing an operation risk; the flexible retracting assembly 2 further comprises a sleeve 26 arranged on the outer surface of the sheath tube 21, one end of the sleeve 26 is fixedly connected with the mounting seat 25, the other end of the sleeve 26 is fixedly connected with the balloon 24, and the sleeve 26 plays a role in connection and support, so that the balloon 24 is prevented from being dislocated relative to the sheath tube 21 in the expanding and contracting process.

Further, in this embodiment, one end of the sleeve 26 connected to the mounting seat 25 wraps the outer surface of the main tube 251, one end of the balloon 24 connected to the sleeve 26 wraps the outer surface of the end of the sleeve 26, the flexible retraction assembly 2 further includes a first fastener 27 for fixedly connecting the sleeve 26 to the balloon 24, the first fastener 27 is sleeved on the outer surface of the connection between the sleeve 26 and the balloon 24, so that the inflation device can input contrast medium or saline through the first branch tube 252, flow through the gap between the sleeve 26 and the sheath tube 21 and deliver the contrast medium or saline into the balloon 24, and the balloon 24 expands due to the increase of the inflation amount to retract the peripheral brain tissue; in the filling process, a slow 'filling balloon 24-discharging balloon 24' circulation is adopted, the filling amount is gradually increased from small to small, brain tissue is prevented from being damaged, the circulation is carried out for multiple times until the balloon 24 reaches a preset value, and a safe operation channel 5 is built.

Referring to fig. 6 to 7, in this embodiment, the flexible retracting assembly 2 further includes a cap 29 fixedly connected to the main tube 251 of the mounting seat 25, the cap 29 is provided with a limiting groove 291 for limiting a moving range of the handle 22 relative to the cap 29, and a limiting protrusion 221 movably connected to the limiting groove 291 is convexly formed on an inner wall surface of the handle 22; preferably, the limit groove 291 of the cap 29 includes a guide portion and a limit portion which are communicated with each other, the limit protrusion 221 of the handle 22 is slidably connected to the guide portion of the limit groove 291, the sliding direction of the handle 22 is limited, and the limit protrusion 221 of the handle 22 is clamped and fixed by the limit portion of the limit groove 291 to pre-stretch the balloon 24.

Furthermore, the flexible retracting component 2 further comprises a sealing ring 4 arranged in the main pipe body 251, the sealing ring 4 is arranged between the cap 29 and the mounting seat 25, and the sealing ring 4 arranged in the main pipe body 251 can prevent the cap 29 from being squeezed between the mounting seat 25 when the handle 22 slides relative to the cap 29, so that a certain buffering effect is achieved, and the service life of the flexible retracting component 2 is prolonged; on the other hand, the sealing function can be achieved, and the endoscope 1 is effectively prevented from being polluted by brain tissues.

Referring to fig. 7 to 10, the present embodiment provides a method for constructing an operation channel 5, including the following steps:

providing a balloon 24 channel device;

the mounting seat 25 of the balloon 24 channel device comprises a hollow main pipe body 251 and a first branch pipe 252 and a second branch pipe 253 which are respectively connected with the main pipe body 251, wherein the main pipe body 251 is sleeved on the sheath pipe 21, the first branch pipe 252 is externally connected with an inflation device, and the second branch pipe 253 is externally connected with the nerve navigation assembly 3;

the handle 22 is pushed to pre-stretch the balloon 24;

fixedly connecting an endoscope 1 to a handle 22, positioning, guiding and observing the endoscope 1 by a nerve navigation component 3, marking a lesion part, and then puncturing to reach the lesion part;

the filling device slowly injects contrast agent or normal saline to the balloon 24, and after reaching the preset filling expansion, the operation channel 5 is built;

evacuating the balloon 24, taking out the balloon 24 channel device, and placing the tearable sheath 21 into the operation channel 5;

the lesion site is repaired in the operation channel 5 in which the tearable sheath 21 is inserted, and the wound is sutured after the operation channel 5 is taken out.

The method for constructing the operation channel 5 comprises the balloon 24 channel device, wherein a flexible retracting assembly 2 of the balloon 24 channel device is fixedly connected with an endoscope 1, the flexible retracting assembly 2 comprises a sheath tube 21, a handle 22 and a sheath head 23 which are respectively arranged at two opposite ends of the sheath tube 21, a retractable balloon 24 and a mounting seat 25, the retractable balloon 24 is used for entering a diseased part and forming a retracting channel for the diseased part, the balloon 24 is sleeved on the outer surface of the sheath tube 21 and is positioned between the mounting seat 25 and the sheath head 23, the mounting seat 25 is connected with an inflating device and a nerve navigation assembly 3, the brain tissue is punctured and intervened under the direct view of retraction of the endoscope 1 through the accurate positioning of the nerve navigation assembly 3, the balloon 24 flexibly expands the brain tissue to establish the safe operation channel 5, the diseased part is rapidly and accurately confirmed, and the damage to the normal brain tissue of a patient in the operation process is reduced, reduce the operation risk, shorten the recovery period and improve the rehabilitation quality and the life quality of the patient.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A balloon access device characterized by: the flexible retracting assembly comprises a sheath tube, a handle arranged at one end of the sheath tube, a sheath guiding head arranged at the other end of the sheath tube, a retractable balloon used for entering a lesion part and forming a retracting channel for the lesion part and a mounting seat, wherein the balloon is sleeved on the outer surface of the sheath tube and positioned between the mounting seat and the sheath guiding head, the mounting seat comprises a hollow main tube body, a first branch tube and a second branch tube, the first branch tube and the second branch tube are respectively connected with the main tube body, the main tube body is sleeved on the sheath tube, the first branch tube is externally connected with a filling device, and the second branch tube is externally connected with a nerve navigation assembly; the endoscope is fixedly connected with the handle.

2. The balloon channel device of claim 1, wherein: the flexible retracting assembly further comprises a sleeve arranged on the outer surface of the sheath tube, one end of the sleeve is fixedly connected with the mounting seat, and the other end of the sleeve is fixedly connected with the balloon.

3. The balloon channel device of claim 2, wherein: the flexible retracting assembly comprises a main pipe body, a balloon and a flexible retracting assembly, wherein one end of the main pipe body, connected with the mounting seat, of the sleeve is wrapped on the outer surface of the main pipe body, one end of the balloon, connected with the sleeve, of the balloon is wrapped on the outer surface of the end part of the sleeve, the flexible retracting assembly further comprises a first fastener used for fixedly connecting the sleeve with the balloon, and the first fastener is sleeved on the outer surface of the joint of the sleeve and the balloon.

4. The balloon channel device of claim 1, wherein: the flexible retracting assembly further comprises a cap fixedly connected with the main pipe body, the cap is provided with a limiting groove used for limiting the movement range of the handle relative to the cap, and a limiting protrusion movably connected with the limiting groove is formed on the surface of the inner wall of the handle in a protruding mode.

5. The balloon channel device of claim 4, wherein: the flexible retracting component further comprises a sealing ring arranged in the main pipe body, and the sealing ring is arranged between the mounting seat and the cap.

6. The balloon channel device of claim 1, wherein: the sheath with the tip that the sheath head is connected is provided with first connecting portion, the sheath head with the one end that the sheath is connected be provided with the second connecting portion of first connecting portion butt, the subassembly is led out to the flexibility still including being used for fixed connection the sheath with the second fastener of sheath head, the second fastener cover is located first connecting portion with the surface of second connecting portion.

7. The balloon channel device of claim 1, wherein: the nerve navigation assembly comprises a navigation frame fixedly connected with the second branch pipe and a nerve navigation system fixedly connected with the navigation frame, and a first anti-skid part is arranged on the surface of the second branch pipe connected with the navigation frame.

8. The balloon channel device of claim 7, wherein: the navigation frame comprises a clamping piece fixedly connected with the nerve navigation system and a pressing piece fixedly connected with the clamping piece and used for controlling the clamping piece to open and close, and a second anti-skidding part is arranged on the surface of the clamping piece movably connected with the second branch pipe.

9. The balloon channel device of claim 1, wherein: the sacculus is a compliance sacculus or a semi-compliance sacculus, and the shape of the sacculus is columnar, calabash-shaped, peanut-shaped or conical.

10. The balloon channel device of claim 1, wherein: the sheath guiding head is in a transparent spherical top conical shape, and can play a role of enlarging an observation visual angle of the convex lens for endoscope observation.

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