CN210056181U - Sealing cover body, incision protective sleeve and surgical device - Google Patents

Abstract

The utility model discloses a sealing cover body, which comprises a shell, and an instrument channel and an air inlet channel which are arranged at the top of the shell, wherein the bottom of the shell is provided with a connecting port for connecting an incision protective sleeve, and the instrument channel and the air inlet channel are both communicated with the inside of the shell; the top of the instrument channel is provided with a sealing cover, the sealing cover is provided with a through hole, and the instrument channel is communicated with the outside through the through hole; the device also comprises a gas barrier baffle for blocking the communication between the instrument channel and the shell; when the surgical instrument is inserted into the through hole, the surgical instrument is in interference fit with the through hole, and when the surgical instrument continues to extend into the shell through the instrument channel, the air blocking baffle is opened under stress. The utility model also discloses an incision protective sheath and operation device. The utility model discloses the sealed cover body has that the infection rate is low, make things convenient for operating personnel to insert advantages such as surgical instruments and carry out the operation.

Description

Sealing cover body, incision protective sleeve and surgical device

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a sealing cover body, the utility model discloses still relate to an incision protective sheath, the utility model discloses still relate to the operation device that forms through the assembly of above-mentioned sealing cover body and incision protective sheath.

Background

When various resection operations are performed in laparoscopic surgery, a multi-channel single-hole endoscope puncture outfit is often used. In one operation, multiple single port endoscopic penetrators are often required. The prior art has the problems of complicated operation or insufficient air tightness after connection, and complications caused by incision infection also cause troubles for doctors. 2011, the Ministry of health issued 'method for managing antibacterial drugs in medical institutions', strictly stipulated the use of antibiotics in hospitals, and put higher requirements on how to control infections during and after operations. The incision protection sleeve is produced under the promotion of the requirement, and can effectively solve the following problems: (1) the exposure of the operation visual field and the visibility of the incision edge are improved, the incision size is effectively reduced, and the bleeding and the blood seepage of the incision tissue are prevented; (2) reducing the extent of tissue damage, local trauma and associated pain; (3) the use of the draw hook and the retractor is reduced, and a larger operation space is provided for an operator; (4) the chance of contamination of the surgical incision is reduced, thereby reducing the risk of infection of the incision.

However, since the incision protection cover is usually made of flexible material, when the incision protection cover is placed in an incision, the incision protection cover is deformed by the squeezing action of the edge tissue, so that the operation visual field of the operation is limited. In addition, although the incision protection sleeve greatly reduces the exposed space of the incision, the pollution chance of the operation incision is reduced. However, the incision protection cover still exposes an upper opening for the medical device to extend into the incision, and the exposed opening still causes wound infection of the patient to some extent. How to develop a novel single-channel multi-hole laparoscopic surgery device which can be used together with an incision protective sleeve so as to further simplify the operation of the single-hole laparoscopic surgery, reduce the infection rate of the incision and improve the surgery efficiency becomes a big problem in the technical field of current medical instruments.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, one of the purposes of the utility model is to provide a single-channel porous sealing cover body, which is used by matching with an incision protective sleeve to overcome the defects of high infection rate of incisions and unfavorable improvement of operation efficiency in the existing multi-channel single-hole puncture outfit.

A second object of the utility model is to provide an incision protective sheath, use through this incision protective sheath and the cooperation of the sealed cover body to overcome the incision infection rate that above-mentioned current incision protective sheath exists high, be unfavorable for promoting the defect of operation efficiency.

The third purpose of the utility model is to provide a surgical device, through using this surgical device to overcome the incision infection rate that current surgical device exists high, be unfavorable for promoting the defect of operation efficiency.

The utility model discloses an one of the purpose adopts following technical scheme to realize:

a sealed cover body comprises a shell, and an instrument channel and an air inlet channel which are arranged at the top of the shell, wherein a connecting port for connecting an incision protective sleeve is arranged at the bottom of the shell, and the instrument channel and the air inlet channel are both communicated with the interior of the shell;

the top of the instrument channel is provided with a sealing cover, the sealing cover is provided with a through hole, and the instrument channel is communicated with the outside through the through hole;

the device also comprises a gas barrier baffle for blocking the communication between the instrument channel and the shell;

when the surgical instrument is inserted into the through hole, the surgical instrument is in interference fit with the through hole, and when the surgical instrument continues to extend into the shell through the instrument channel, the air blocking baffle is opened under stress.

The instrument channel further comprises a channel lining, and the channel lining is arranged on the inner wall of the instrument channel;

the top of the channel lining is connected with the sealing cover, and the bottom of the channel lining is connected with the choke baffle.

Further, the choke baffle is arranged in the instrument channel, and the bottom of the channel lining is arranged to be inclined;

the air blocking baffle is an inclined cover plate, one side of the inclined cover plate is fixedly connected with the bottom of the channel lining, and the other side of the inclined cover plate is detachably connected with the bottom of the channel lining.

Further, the choke baffle comprises a connecting seat, a first sealing valve and a second sealing valve, and the first sealing valve and the second sealing valve are arranged at one end of the connecting seat;

one end of the connecting seat, which is far away from the first sealing valve and the second sealing valve, is provided with a first detachable connecting piece, and the bottom of the channel lining is correspondingly provided with a second detachable connecting piece;

the first sealing valve and the second sealing valve jointly seal off one end of the connecting seat, a strutting strip is formed at the joint of the first sealing valve and the second sealing valve, and the strutting strip is propped open when being squeezed by surgical instruments.

The air inlet device comprises an air inlet pipeline, an air inlet switch and an air inlet interface, wherein the air inlet interface is used for connecting an air inlet channel;

the air inlet switch is arranged on the air inlet pipeline and used for controlling the on-off of the air inlet pipeline.

The shell is correspondingly provided with an air outlet channel, and the air outlet interface is used for being connected with the air outlet channel;

the air outlet switch is arranged on the air outlet pipeline and used for controlling the on-off of the air outlet pipeline.

Furthermore, the inner wall of the connecting port is provided with at least one annular groove, and the annular groove is used for sleeving a notch protective sleeve;

the axis of the shell and the axis of the instrument channel are intersected to form an included angle of 0-10 degrees.

Further, the sealing cover is made of flexible materials, and the shell is made of transparent or semitransparent flexible materials.

The second purpose of the utility model is realized by adopting the following technical scheme:

an incision protection sleeve comprises a channel, a connecting ring and an implantation ring, wherein the connecting ring is arranged at one end of the channel and used for being connected with a connecting port of a sealing cover body, and the implantation ring is arranged at the other end of the channel and used for being implanted into an operation incision;

the incision protective sheath that the incision protective sheath was made for transparent or translucent flexible material.

The third purpose of the utility model is realized by adopting the following technical scheme:

a surgical device comprises the sealing cover body and the incision protection sleeve.

Compared with the prior art, the beneficial effects of the utility model reside in that:

(1) the utility model discloses the sealed cover body uses through cooperation incision protective sheath, can aerify in order to strut operation incision or its inside organ, tissue for the incision protective sheath, ensures around surgical instruments stretches into the incision, and this operation device is in relative inclosed space all the time, very big reduction the infection rate. The instrument channel arranged at the top of the shell is convenient for surgical personnel to insert surgical instruments for surgery, and the surgical process is always in a relatively sterile environment.

(2) The utility model discloses incision protective sheath cooperation above-mentioned sealing cover body uses, can provide the operation personnel field of vision that performs the operation, in implanting the incision fast with the help of the flexibility of self, also makes things convenient for it to be connected with the sealing cover body, ensures the relative seal of operation device, promotes the efficiency of operation greatly.

(3) The utility model discloses the operation device uses through the sealed cover body and the cooperation of incision protective sheath, conveniently struts operation incision or the interior tissue of operation incision or organ, makes things convenient for the operating personnel to observe. In addition, the operation device forms a relatively closed cavity, the operation personnel can insert the operation instrument through the sealing cover body, the operation instrument performs operation in the relatively closed and isolated cavity, and the infection risk of the operation can be greatly reduced.

Drawings

FIG. 1 is a schematic view of a surgical device according to an embodiment of the present invention;

FIG. 2 is an exploded view of the surgical device of FIG. 1;

FIG. 3 is a schematic structural view of the sealing boot shown in FIG. 2;

FIG. 4 is a cross-sectional view of the sealing boot shown in FIG. 3;

FIG. 5 is an enlarged view of a portion of the choke baffle of FIG. 4;

FIG. 6 is a schematic view of another embodiment of a choke baffle;

FIG. 7 is a schematic view of the incision protection cover of FIG. 2;

FIG. 8 is a cross-sectional view of the incision protection cover of FIG. 7.

In the figure: 100. sealing the cover body; 11. a housing; 12. an instrument channel; 121. a sealing cover; 1211. a through hole; 122. a channel liner; 13. an air intake passage; 14. a connecting port; 141. a strip annular groove; 15. a choke baffle; 151. a tip; 152. a connection tail; 153. a connecting seat; 154. a first sealing valve; 155. a second sealing valve; 16. an air intake device; 17. an air outlet device; 200. an incision protection sleeve; 21. a connecting ring; 22. a channel; 23. and implanting the ring.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

Example 1

As shown in fig. 1-2, a surgical device (laparoscopic surgical device) according to an embodiment of the present invention is provided. The surgical device comprises a sealingcover body 100 and anincision protection sleeve 200, wherein the sealingcover body 100 is detachably connected with theincision protection sleeve 200. From this, can insert operation incisionprotective sheath 200 earlier as required in the operation, link together sealingcover body 100 with incisionprotective sheath 200 again, inflate incisionprotective sheath 200 through sealingcover body 100 so that operation incision or the interior tissue or the organ of operation incision struts, make things convenient for operating personnel to observe. In addition, the surgical device forms a relatively closed cavity, surgical staff can insert surgical instruments through the sealingcover body 100, the surgical instruments perform surgical operation in the relatively closed and isolated cavity, and the infection risk of the surgery can be greatly reduced.

As shown in fig. 3-4, a cross-sectional view of the sealedenclosure 100 is shown. The sealedenclosure 100 includes ahousing 11, and aninstrument channel 12 and anair intake channel 13 disposed at the top of thehousing 11. The bottom of thehousing 11 is further provided with aconnection port 14, and theconnection port 14 is used for connecting theincision protection cover 200. Wherein,instrument passageway 12 andinlet channel 13 all communicate with each other with the inside ofcasing 11, andinstrument passageway 12 is used for inserting surgical instruments, andinlet channel 13 is used for admitting air to the inside ofcasing 11 and incisionprotective sheath 200, and then is used for strutting the incision, makes things convenient for operating personnel to observe the inside tissue and the organ of incision. The top of theinstrument channel 12 is provided with a sealingcover 121, the sealingcover 121 covers the top of theinstrument channel 12, and the middle of the sealingcover 121 is provided with a throughhole 1211, the throughhole 1211 is communicated with theinstrument channel 12, that is, theinstrument channel 12 is communicated with the outside through the throughhole 1211. The sealingboot 100 further includes achoke flap 15. in this embodiment, thechoke flap 15 is disposed in theinstrument channel 12, and thechoke flap 15 blocks communication between theinstrument channel 12 and thehousing 11. In other embodiments, achoke stop 15 may also be provided inside thehousing 11 or between theinstrument channel 12 and thehousing 11 for blocking communication between theinstrument channel 12 and thehousing 11.

When the operation device is used for operation, theincision protection sleeve 200 can be firstly inserted into an operation incision, at this time, the top of theincision protection sleeve 200 is sleeved with the connectingport 14, the bottom of theincision protection sleeve 200 is abutted against tissues inside the incision, the bottom of theincision protection sleeve 200 is blocked through tissues or organs, the operation device forms a relatively closed cavity (when the tissues or organs do not completely block the bottom of theincision protection sleeve 200, the operation device also has the possibility of outward air leakage, but the operation device is ensured to be in a filling state in the whole operation process through the continuous inflation process of the air inlet channel 13), the operation device is inflated through theair inlet channel 13, at this time, theinstrument channel 12 is blocked by theair blocking baffle 15, the inside of theshell 11 is prevented from being communicated with outside air through theair blocking baffle 15, the operation device forms a relatively closed cavity, and the inside of the operation device is ensured to, the utility model has the functions of opening the wound and facilitating the operation of the operating personnel. Meanwhile, the surgical incision is covered by the surgical device, and the surgical incision is in a relatively closed state in the surgical process, so that the risk of surgical incision infection is greatly reduced. At this time, the surgical instrument is inserted into theinstrument channel 12 through the throughhole 1211 of the sealingcap 121, and at this time, the surgical instrument is in interference fit with the throughhole 1211, that is, the throughhole 1211 wraps the surgical instrument, and the gas in theinstrument channel 12 cannot or only slightly leaks out from the throughhole 1211. When the surgical instrument continues to extend into thehousing 11 and the human body through theinstrument channel 12, the surgical instrument is always in interference fit with the throughhole 1211, so that the air pressure inside thehousing 11 is relatively constant. When the surgical instrument abuts against theair blocking baffle 15, theair blocking baffle 15 is forced to open, and at this time, the interior of thehousing 11 is communicated with theinstrument channel 12, and the interference-fit surgical instrument is sealed with the throughhole 1211. Thus, the sealingcap 121 and thegas barrier 15 alternately perform a sealing function to form a double-path gate of the surgical device, thereby ensuring that the gas pressure inside thehousing 11 is relatively constant and relatively sealed. After the surgical instrument is inserted into the tissue, the operator can manipulate the tail of the surgical instrument, such as forceps, scissors, scalpel, washing solution device, and suction solution device, at the top of the surgical device.

In a preferred embodiment, the throughhole 1211 formed in thesealing cap 121 is circular, is mainly used for passing various instruments, and has a diameter of 2 to 11 mm. The sealingcap 121 and the throughhole 1211 are made of a flexible material, for example, a medical polymer material such as rubber or silica gel.

In a preferred embodiment, thehousing 11 is made of a transparent or translucent flexible material. Therefore, during operation, an operator can observe the position and the state of the surgical instrument through theshell 11, and the surgical instrument can be conveniently operated by the operator; theflexible housing 11 does not present sharp corners and does not cause unnecessary trauma to the patient. In other embodiments, thehousing 11 may also be made of a non-transparent flexible material, and the surgical personnel can observe the position and state of the surgical instrument through theincision protection cover 200 sleeved thereon.

In a preferred embodiment, the inner wall of theconnection port 14 is provided with two annular grooves 141, and correspondingly, as shown in fig. 7-8, the top of theincision protection cover 200 is provided with two connection rings 21. When assembling the sealingcover body 100 and theincision protection sleeve 200, with the help of the good fitting property and the sealing effect of the flexible material, when the two connection rings 21 are embedded into the two annular grooves 141, the sealing connection between the sealingcover body 100 and theincision protection sleeve 200 can be ensured, and especially when the air pressure in theshell 11 is large, the sealingcover body 100 and theincision protection sleeve 200 are further ensured to be firmly connected under the extrusion action of the air pressure. In other embodiments, the sealingcover body 100 and theincision protection cover 200 may also be detachably connected by bonding, clamping, sleeving, or the like, or may also be fixedly connected by strong glue or the like.

In a preferred embodiment, as shown in fig. 4, theinstrument channel 12 further includes achannel liner 122 therein, thechannel liner 122 being disposed on an inner wall of theinstrument channel 12. In this embodiment, thechannel liner 122 is made of plastic, and thechannel liner 122 is adhered to the inner wall of theinstrument channel 12, thereby ensuring that thechannel liner 122 and theinstrument channel 12 are fixed together. In other embodiments, thechannel liner 122 may be integrally formed with theinstrument channel 12, or may be connected by a snap-fit, sleeve-fit, or the like connection.

As a preferred embodiment, as shown in fig. 4, thechannel lining 122 extends upward to exceed theinstrument channel 12, the top of thechannel lining 122 is engaged with the sealingcover 121, specifically, the inner wall of the sealingcover 121 is provided with a hook, correspondingly, the outer wall of thechannel lining 122 is provided with a slot, when assembling, the hook on the inner wall of the sealingcover 121 is embedded into the slot on the outer wall of thechannel lining 122, thereby achieving the effect that thechannel lining 122 is engaged with the sealingcover 121. In other embodiments, thechannel liner 122 and the sealingcap 121 may be bonded, sleeved, screwed, etc.

In a preferred embodiment, as shown in fig. 4, thechoke plate 15 is provided in theinstrument channel 12, and thechoke plate 15 blocks thechannel liner 122 from the bottom of thechannel liner 122. The bottom of theduct liner 122 is provided with an inclination, and the bottom of theduct liner 122 is openably and closably connected to thechoke flap 15. When the surgical instrument extends into thehousing 11, the surgical instrument abuts against thechoke baffle 15, thechoke baffle 15 receives the thrust action in the inclined direction, the left end of thechoke baffle 15 is disconnected from thechannel lining 122, and the right end of thechoke baffle 15 is connected with thechannel lining 122, so that the bottom of thechannel lining 122 is connected with thechoke baffle 15 in an openable and closable manner, and the surgical instrument can be conveniently and smoothly inserted into thehousing 11. As shown in fig. 5, the specific connection manner is: thechoke baffle 15 is set to be similar to an L shape and comprises a connecting tail 152 and a tip 151, the connecting tail 152 is clamped between the outer wall of thechannel lining 122 and the inner wall of theinstrument channel 12, the connecting tail 152 is provided with a protruding clamping hook, correspondingly, the outer wall of thechannel lining 122 is provided with a clamping groove, and the clamping hook is embedded into the corresponding clamping groove during assembly, so that thechoke baffle 15 is clamped with thechannel lining 122. In this embodiment, the end 151 is configured in a "cap shape", and the end 151 includes a middle plate for closing off the bottom outlet of thechannel liner 122 and a flange for surrounding the bottom outlet of thechannel liner 122, and thechoke plate 15 is configured to close off the bottom opening of thechannel liner 122 by the cooperation of the flange and the middle plate. In other embodiments, the tip 151 and thechannel liner 122 may be bonded, sleeved, snapped, or otherwise connected with a break-away tape.

In a preferred embodiment, the top of the sealedenclosure 100 further comprises anair inlet device 16, and theair inlet device 16 comprises an air inlet pipeline, an air inlet switch and an air inlet interface, and the air inlet interface is used for connecting theair inlet channel 13. Theair inlet device 16 is communicated with theair inlet channel 13, air is fed into theshell 11 through theair inlet device 16, and the air inlet device is used for propping open tissues or organs which are cut out, so that the surgical staff can observe the surgical position conveniently. The air inlet switch is arranged on the air inlet pipeline and controls the on or off of the air inlet pipeline through the air inlet switch. When air inlet is needed, air can be fed into theshell 11 through theair inlet device 16, when air outlet is needed, air outlet can also be carried out through theair inlet device 16, and when air pressure in theshell 11 needs to be maintained relatively stable, air can be fed slowly and continuously through the air inlet device 16 (in the case of air leakage) or an air inlet switch is closed (in the case of no air leakage).

As a preferred embodiment, the top of the sealingcover 100 further includes anair outlet device 17, theair outlet device 17 includes an air outlet pipeline, an air outlet switch and an air outlet interface, thehousing 11 is correspondingly provided with an air outlet channel, and when the surgical device is assembled, theair outlet device 17 is connected to the air outlet interface through the air outlet channel, so as to achieve conduction between theair outlet device 17 and the interior of the housing. The air outlet switch is arranged on the air outlet pipeline and controls the on or off of the air outlet pipeline. In the operation process, when dirty gas in the incision needs to be removed, the air can be continuously fed in through theair inlet device 16 and continuously discharged through theair outlet device 17, the gas in the air inlet device is sterile, a passage can be formed to discharge the dirty gas, and the operation process is convenient to carry out.

As a preferred embodiment, the central axis of theinstrument channel 12 intersects with the central axis of thehousing 11, and the included angle between the two central axes is 0-10 °. The central axis of theinstrument channel 12 is intersected with the central axis of theshell 11, so that surgical personnel can conveniently insert surgical instruments from the lateral direction, and the surgical instruments can be extended into a certain distance and then act on specific positions.

In a preferred embodiment, the top of thehousing 11 includes fourinstrument channels 12, and the throughholes 1211 corresponding to the fourinstrument channels 12 are different in size for inserting different surgical instruments. The central axes of the fourinstrument channels 12 are intersected with the central axis of theshell 11, and the angles are the same, that is, the surgical instruments are focused on the same position after extending into the same distance, so that the surgical instruments can be conveniently controlled by surgical personnel. In other embodiments, the number ofinstrument channels 12, the angle at which the axes intersect the central axis of thehousing 11, may be adjusted as desired.

Example 2

Example 2 differs from example 1 in that: as shown in fig. 6, thechoke baffle 15 includes a connectingseat 153, afirst sealing valve 154, and asecond sealing valve 155. The connectingseat 153 is cylindrical, and thefirst sealing valve 154 and thesecond sealing valve 155 are disposed at an upper end (upper right end in fig. 6) of the cylindrical connectingseat 153. The upper end of the connectingseat 153 is provided with a first detachable connecting member, in this embodiment an external thread, and correspondingly, the bottom of thepassage liner 122 is provided with an internal thread, by means of which the detachable connection between thechoke plate 15 and thepassage liner 122 is achieved. In other embodiments, thechoke baffle 15 and thechannel liner 122 may be detachably connected by snapping, sleeving or bonding.

Thefirst sealing valve 154 and thesecond sealing valve 155 together seal the lower end (the lower left end in the figure) of the connectingseat 153, thefirst sealing valve 154 and thesecond sealing valve 155 are semi-circular-like, the upper portions of thefirst sealing valve 154 and thesecond sealing valve 155 are connected with the lower end of the connectingseat 153, and the lower portions of thefirst sealing valve 154 and thesecond sealing valve 155 are connected with each other to form a spreading band. When the surgical instrument presses thefirst sealing valve 154 or thesecond sealing valve 155, the spreader strap is pressed and broken by the force of the pressing force, so that the surgical instrument can pass through the spreader strap.

In other embodiments, thefirst sealing valve 154 and thesecond sealing valve 155 may not be connected, and thefirst sealing valve 154 and thesecond sealing valve 155 overlap at an intermediate position, so that the channel lining 122 can be blocked well by the overlapping of thefirst sealing valve 154 and thesecond sealing valve 155, and a certain sealing function can be achieved. When the surgical instrument presses thefirst sealing valve 154 or thesecond sealing valve 155, the intermediate overlapping position is spread, and the surgical instrument smoothly enters thehousing 11.

Example 3

As shown in fig. 7-8, anincision protection cover 200 is provided for use with theclosure 100. Theincision protection sleeve 200 comprises achannel 22, aconnection ring 21 and animplantation ring 23, wherein theconnection ring 21 is arranged at the top end of thechannel 22 and is used for connecting theconnection port 14 of the sealingcover body 100, theimplantation ring 23 is arranged at the bottom end of thechannel 22 and is used for being implanted into an operation incision, and by means of the shaping and abutting action of theimplantation ring 23, the shape of theimplantation ring 23 can be relatively constant, and theimplantation ring 23 cannot be deformed due to tissue extrusion; on the other hand, theimplantation ring 23 can be ensured to abut against tissues or organs, and the interior of the surgical device can be ensured to be relatively sealed.

In a preferred embodiment, theincision protection cover 200 is made of transparent or semitransparent flexible material, such as medical silica gel.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims (10)

1. A sealed cover body is characterized by comprising a shell, and an instrument channel and an air inlet channel which are arranged at the top of the shell, wherein a connecting port for connecting an incision protective sleeve is arranged at the bottom of the shell, and the instrument channel and the air inlet channel are both communicated with the interior of the shell;

the top of the instrument channel is provided with a sealing cover, the sealing cover is provided with a through hole, and the instrument channel is communicated with the outside through the through hole;

the device also comprises a gas barrier baffle for blocking the communication between the instrument channel and the shell;

when the surgical instrument is inserted into the through hole, the surgical instrument is in interference fit with the through hole, and when the surgical instrument continues to extend into the shell through the instrument channel, the air blocking baffle is opened under stress.

2. The sealing boot of claim 1, further comprising a channel liner disposed on an inner wall of the instrument channel;

the top of the channel lining is connected with the sealing cover, and the bottom of the channel lining is connected with the choke baffle.

3. The sealing boot body of claim 2, wherein the choke baffle is disposed in the instrument channel, and a bottom of the channel liner is disposed in an inclined shape;

the air blocking baffle is an inclined cover plate, one side of the inclined cover plate is fixedly connected with the bottom of the channel lining, and the other side of the inclined cover plate is detachably connected with the bottom of the channel lining.

4. The sealing cover body of claim 2, wherein the choke baffle includes a connecting seat, a first sealing valve and a second sealing valve, the first sealing valve and the second sealing valve being disposed at one end of the connecting seat;

one end of the connecting seat, which is far away from the first sealing valve and the second sealing valve, is provided with a first detachable connecting piece, and the bottom of the channel lining is correspondingly provided with a second detachable connecting piece;

the first sealing valve and the second sealing valve jointly seal off one end of the connecting seat, a strutting strip is formed at the joint of the first sealing valve and the second sealing valve, and the strutting strip is propped open when being squeezed by surgical instruments.

5. The sealing boot body of claim 1, further comprising an air inlet device, said air inlet device comprising an air inlet conduit, an air inlet switch, and an air inlet interface, said air inlet interface for connecting to an air inlet passage;

the air inlet switch is arranged on the air inlet pipeline and used for controlling the on-off of the air inlet pipeline.

6. The sealing cover body according to claim 5, further comprising an air outlet device, wherein the air outlet device comprises an air outlet pipeline, an air outlet switch and an air outlet interface, the housing is correspondingly provided with an air outlet channel, and the air outlet interface is used for connecting the air outlet channel;

the air outlet switch is arranged on the air outlet pipeline and used for controlling the on-off of the air outlet pipeline.

7. The sealing boot body of claim 1, wherein the inner wall of the connection port is provided with at least one annular groove for receiving an incision protection cover;

the axis of the shell and the axis of the instrument channel are intersected to form an included angle of 0-10 degrees.

8. The sealing boot of claim 1, wherein the sealing cap is a flexible sealing cap and the housing is a transparent or translucent flexible housing.

9. An incision protection sleeve is characterized by comprising a channel, a connecting ring and an implantation ring, wherein the connecting ring is arranged at one end of the channel and used for being connected with a connecting port of a sealing cover body, and the implantation ring is arranged at the other end of the channel and used for being implanted into an operation incision;

the incision protective sheath that the incision protective sheath was made for transparent or translucent flexible material.

10. A surgical device comprising the sealing boot of any one of claims 1-8 and the incision protection cover of claim 9.

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