CN216090814U - Face mask - Google Patents

Abstract

A mask comprises a mask main body, a tool sleeve and a sealing cover, wherein the mask main body is provided with a ventilation hole and an operation hole, the tool sleeve is detachably arranged through the operation hole, and the sealing cover is arranged on the mask main body or detachably connected to the mask main body and used for sealing the operation hole when the tool sleeve is separated from the mask main body. By utilizing the conversion and matching among the mask main body, the tool sleeve and the sealing cover piece, under the condition that the tool sleeve is assembled on the mask main body through the operation pore channel, auxiliary tools such as gastroscope and bronchofiberscope can be inserted into the body from the outside through the tool sleeve, the effect of synchronously carrying out oxygen inhalation and ventilation and endoscope diagnosis and treatment operation is realized, and conditions are created for reducing the pain of patients and ensuring the smooth implementation of diagnosis and treatment operation; meanwhile, the auxiliary tool can be protected by the tool sleeve to prevent the auxiliary tool from being damaged; under the condition that the sealing piece blocks the operation pore passage, the mask can be used as a common mask to assist a patient to inhale oxygen and ventilate.

Description

Face mask

Technical Field

The utility model relates to the field of medical equipment, in particular to a mask.

Background

It is known that diagnosis and treatment of endoscopes (such as gastroscopes, respiratory endoscopes, nasal endoscopes, etc.) is a conventional disease examination and treatment means in modern medicine, and in order to relieve discomfort of patients and ensure life safety of patients, endoscope diagnosis and treatment are implemented under painless technology and ventilation technology at present; therefore, the endoscope mask is widely used.

Most of the existing endoscope masks are provided with a pore passage, for example, gastroscope or bronchoscope diagnosis and treatment, a mouthpiece is firstly placed in the mouth of a patient, then the mask is worn, and finally detection equipment such as gastroscope or bronchofiberscope is introduced into the body of the patient through the pore passage of the mask and the mouthpiece; if the patient has the phenomena of oxygen deficiency and the like in the diagnosis and treatment process, the detection equipment is usually pulled out, and then the mask is tightly fastened on the mouth and nose part of the patient to assist or control ventilation so as to ensure the life safety of the patient. Because the diagnosis and treatment operation and the oxygen supply and ventilation can not be carried out simultaneously, the mask needs to be worn repeatedly and the detection equipment needs to be taken and placed, so that the pain of the patient and the complexity of the diagnosis and treatment operation are greatly increased, and the interruption and even failure of the diagnosis and treatment operation are easily caused.

SUMMERY OF THE UTILITY MODEL

The utility model mainly solves the technical problem of providing a mask to achieve the purpose of simultaneously carrying out diagnosis and treatment and ventilation.

An embodiment provides a mask comprising:

the mask comprises a mask body, a mask body and a mask body, wherein the mask body is provided with a ventilation hole channel and an operation hole channel which are arranged at intervals, and the ventilation hole channel is used for ventilation;

the tool sleeve is used for being penetrated by an auxiliary tool and detachably arranged through the operation hole; and

a cover member for closing off the access opening when the tool sleeve is separated from the mask body, the cover member being provided to the mask body or being detachably connected to the mask body.

In one embodiment, the tool sleeve has a cleaning structure configured to remove stickers from the surface of the auxiliary tool when the auxiliary tool is pulled out of the tool sleeve.

In one embodiment, the cleaning structure is provided with a cleaning through hole, the cleaning through hole is communicated with the pipe body space of the tool sleeve, and at least part of the aperture of the cleaning through hole is matched with the outer diameter of the auxiliary tool, so that at least part of the hole wall of the cleaning through hole can be attached to the surface of the auxiliary tool, and therefore when the auxiliary tool moves through the cleaning through hole, the adhesive on the surface of the auxiliary tool is removed.

In one embodiment, the cleaning aperture is a generally conical structure having opposing conical top and bottom ports, the conical top port being disposed facing the outer surface side of the mask body, the conical bottom port being disposed facing the inner surface side of the body mask, and the conical top port having an aperture corresponding to the outer diameter of the accessory tool.

In one embodiment, the cleaning structure comprises a flap portion and a weir portion sequentially spaced from the outer surface side toward the inner surface side of the mask body, wherein:

the cleaning through hole penetrates through the cover plate part, and the aperture of the conical bottom port of the cleaning through hole is larger than or equal to the outer diameter of the tool sleeve;

the cofferdam part surrounds the periphery of the tool sleeve and extends to the cover plate part, so that a storage cavity is formed at the periphery of the tool sleeve and used for storing the adhesive which is separated from the surface of the auxiliary tool.

In one embodiment, the cleaning structure is provided at an end of the tool cannula on the outer surface side of the mask body, the weir portion is fixedly provided around the end of the tool cannula, and the cover portion covers and connects the weir portion in a detachable manner.

In one embodiment, the tool sleeve comprises an outer tube section and an inner tube section, the outer tube section is detachably arranged through the operation hole, the inner tube section is positioned on the inner surface side of the mask body, one end of the inner tube section is rotatably communicated with the outer tube section, and the other end of the inner tube section is used for extending into the human body cavity;

or

The tool sleeve comprises an outer pipe section and an inner pipe section, the outer pipe section penetrates through an operation hole channel in a detachable mode, the inner pipe section is located on the inner surface side of the mask main body, the inner pipe section is provided with a telescopic structure, so that the inner pipe section can stretch and bend, one end of the inner pipe section is communicated with the outer pipe section, and the other end of the inner pipe section is used for stretching into a cavity channel of a human body.

In one embodiment, one of the outer pipe section and the inner pipe section is provided with an annular flange on the outer peripheral surface, and the other one of the outer pipe section and the inner pipe section is provided with an annular groove on the inner peripheral surface, and the annular flange is in alignment fit in the annular groove so that the inner pipe section can rotate relative to the outer pipe section.

In one embodiment, the outer periphery of the outer tube section is provided with a first locking structure, the mask body is provided with a second locking structure at the position of the operation hole, and the first locking structure and the second locking structure are matched to lock the tool sleeve to the mask body.

In one embodiment, the closure member has:

the plug part is used for plugging the operation pore canal; and

and the flange part surrounds one end of the plug part, and is positioned on the outer surface side of the mask main body, so that the plug part can be inserted into or pulled out of the operation pore channel.

The mask according to the above embodiment includes a mask body having a ventilation opening and an operation opening, a tool tube detachably disposed through the operation opening, and a cover member detachably attached to the mask body or disposed on the mask body to block the operation opening when the tool tube is separated from the mask body. By utilizing the conversion and matching among the mask main body, the tool sleeve and the sealing cover piece, under the condition that the tool sleeve is assembled on the mask main body through the operation pore channel, auxiliary tools such as gastroscope and bronchofiberscope can be inserted into the body from the outside through the tool sleeve, the effect of synchronously carrying out oxygen inhalation and ventilation and endoscope diagnosis and treatment operation is realized, and conditions are created for reducing the pain of patients and ensuring the smooth implementation of diagnosis and treatment operation; meanwhile, the auxiliary tool can be protected by the tool sleeve to prevent the auxiliary tool from being damaged; under the condition that the sealing piece blocks the operation pore passage, the mask can be used as a common mask to assist a patient to inhale oxygen and ventilate.

Drawings

FIG. 1 is a schematic diagram of the alignment of components of a mask according to one embodiment.

FIG. 2 is a schematic cross-sectional view of a mask body and a tool cannula of the mask in accordance with an embodiment.

Fig. 3 is a perspective view (one) of the mask body and the tool cannula assembly of the mask according to one embodiment.

Fig. 4 is a perspective view (two) of the mask body and the tool cannula in the mask according to one embodiment.

FIG. 5 is an exploded view of a tool cannula in the mask according to one embodiment.

FIG. 6 is a schematic cross-sectional view of one embodiment of a mask in which the mask body and the closure are combined.

Fig. 7 is a perspective view of one embodiment of a mask with the mask body and the cover combined.

In the figure:

10. a mask body; 10a, a vent channel; 10b, an operation hole channel; 11. a main body portion; 12. a sealing part;

20. a tool sleeve; 20a, cleaning the via hole; 20b, a cover plate portion; 20c, a weir part; 20d, a storage cavity; 21. an outer tube section; 22. an inner tube section; 23. an annular flange; 24. an annular groove; 25. a first locking structure; 26. a second locking structure;

30. a closure member; 31. a plug portion; 32. a flange portion.

Detailed Description

The present invention will be described in further detail with reference to the following detailed description and accompanying drawings. Wherein like elements in different embodiments are numbered with like associated elements. In the following description, numerous details are set forth in order to provide a better understanding of the present application. However, those skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.

Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments. Also, the various steps or actions in the method descriptions may be transposed or transposed in order, as will be apparent to one of ordinary skill in the art. Thus, the various sequences in the specification and drawings are for the purpose of describing certain embodiments only and are not intended to imply a required sequence unless otherwise indicated where such sequence must be followed.

The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings).

Referring to fig. 1-7, one embodiment provides a mask, such as a mask that can be used or can support endoscopic procedures, and the mask can be in various forms such as a breathing mask, an oxygen mask, an endoscope mask, etc.; in order to clearly describe the structural configuration of the mask, the mask is mainly used for gastroscopy or respiratory endoscopy, and those skilled in the art should understand that the examination items need to use auxiliary tools such as gastroscope and bronchofiberscope and enter the body through the oral cavity of the human body. However, it should be noted that gastroscopy or respiratory endoscopy is only one specific application of the mask, and the mask can also be used for other endoscopic diagnosis and treatment such as nasal endoscopy, so those skilled in the art should also know that auxiliary tools such as nasal endoscopy need to be used and enter the body through the nasal cavity of the human body. The mask includes a mask body 10, a tool cannula 20 and a closure member 30, each described below.

Referring to fig. 1 to 4 and fig. 6 and 7, the mask body 10 functions to cover or cover the nose and mouth area of the human face when in use, and forms a relatively closed cavity space in the nose and mouth area when contacting the skin of the face; for convenience of description, the face of the mask body 10 facing the face is defined as the inner surface of the mask body 10, and the other face opposite to the inner surface and facing away from the face is defined as the outer surface of the mask body 10. The mask body 10 has a ventilation duct 10a and an operation duct 10b which are arranged through the inner surface and the outer surface and are arranged at intervals; the operation hole 10b is used to provide structural support for the combined assembly of the tool sleeve 20 or the cover member 30 with the mask body 10, and may be a through hole structure disposed through the inner surface and the outer surface of the mask body 10, or a conduit structure disposed through the inner surface and the outer surface of the mask body 10. The ventilation duct 10a is used for connecting a ventilation device, such as a respirator, an anesthesia machine, etc., taking the respirator as an example, sufficient oxygen can be provided for the patient through the ventilation duct 10a, and the oxygen can enter the body cavity (such as oral cavity, nasal cavity) through the cavity space; in particular implementations, the airway passage 10a may be provided as a standard fitting configuration that enables abutting communication with an airway device, such as a conduit interface structure protruding from the outer surface of the mask body 10.

In one embodiment, referring to fig. 1 to 4 and fig. 6 and 7, the mask body 10 includes a main body portion 11 and a sealing portion 12, and other components (such as a strap, etc.) as needed; the main body part 11 can be set to be in a structure shape which is adaptive to the facial features of the human body, so that the main body part can cover or cover the mouth and nose areas of the face of the human body, and the ventilation duct 10a and the operation duct 10b both penetrate through the main body part 11; the sealing part 12 surrounds the contour edge of the main body part 11 and is used for being attached to the skin of the human face, so that a relatively closed cavity space can be formed between the main body part 11 and the human face; in specific implementation, the main body 11 may be made of medical grade PVC material, and the sealing part 12 may be a gasket structure made of soft rubber material such as silica gel, so as to ensure the sealing property of the cavity space when the mask is worn; of course, the sealing portion 12 may be configured as an air bag, and the sealing portion 12 may be inflated or deflated by inflating or deflating the air bag to fit the facial features and to closely fit the facial skin.

Referring to fig. 1 to 5, the tool sleeve 20 is mainly used to provide a structural passage for the gastroscope or bronchofiberscope to enter the body from the outside through the oral cavity, and is detachably assembled with or separated from the mask body 10; in use, the tool bushing 20 is disposed through the operation hole 10b to positionally fit the tool bushing 20 to the mask body 10 such that one end of the tool bushing 20 is located on the outer surface side of the mask body 10 and the other end is located on the inner surface side of the mask body 10, and a gastroscope or bronchofiberscope can be passed through the tool bushing 20 and extended into the body cavity for a corresponding inspection operation. Firstly, based on the cooperation of the ventilation duct 10a, the operation duct 10b and the tool sleeve 20, the effect of synchronous proceeding of oxygen inhalation ventilation and diagnosis and treatment operation can be realized when the whole mask is applied; second, by selecting the length of the tool sleeve 20, the end of the tool sleeve 20 located on the inner surface side of the mask body 10 can be made to serve as a mouthpiece, and after the end is inserted into the oral cavity of a human body, the gastroscope or bronchofiberscope can be prevented from being damaged by being bitten by teeth.

In one embodiment, referring to fig. 1, 2, 4 and 5, the tool casing 20 includes an outer pipe section 21 and an inner pipe section 22 disposed in communication in sequence; when the tool sleeve 20 is used, the outer tube section 21 is detachably disposed through the operation hole 10b, the inner tube section 22 is located on the inner surface side of the mask body 10, one end of the inner tube section 22 is coaxially inserted and rotatably connected to the outer tube section 21, so that the inner tube section 22 can rotate relative to the outer tube section 21, and the other end of the inner tube section 22 can be used to extend into the teeth in the oral cavity of the human body to serve as a mouthpiece. Thus, the rotational capability of the inner tube 22 can be used to accommodate the position of the mouth and the comfort of the patient's bite, and to prevent the tool sleeve 20 from twisting and affecting the movement of the gastroscope or bronchofiberscope. In this embodiment, the tool sleeve 20 may be in a straight tube form as a whole, or in a bent tube form, for example, the inner tube section 22 is bent, or other portions of the tool sleeve 20 except for the main body portion of the outer tube section 21 are bent, so that the orientation of the inner tube section 22 can be properly adjusted according to the relative position relationship between the body lumen and the operation duct 10b, so that the patient can bite or smoothly enter the oral cavity of the patient, such as gastroscope and bronchofiberscope.

In specific implementation, an annular flange 23 distributed around the inner pipe section 22 may be provided on the outer circumferential surface of one end of the inner pipe section 22, and correspondingly, an annular groove 24 for the annular flange 23 to be aligned and embedded is provided on the inner circumferential surface of the port of the outer pipe section 21, so that when the end portions of the inner pipe section 22 and the outer pipe section 21 are coaxially inserted and sleeved, the inner pipe section 22 is constrained on the outer pipe section 21 and is ensured to be in sealed communication by using the alignment and matching relationship between the annular flange 23 and the annular groove 24, and meanwhile, the inner pipe section 22 can be provided with a condition of rotating at any angle relative to the outer pipe section 21 within the range of 0-360 degrees. Of course, the annular groove 24 and the annular flange 23 can be reversed so that the end of the outer tube section 21 is rotatably inserted into the inner tube section 22.

In another embodiment, the inner pipe section 22 has a telescopic structure, for example, the whole or a part of the inner pipe section 22 adopts a corrugated or folded structure, and one end of the inner pipe section 22 can be fixedly connected to the outer pipe section 21, or can be rotatably connected to the outer pipe section in the above manner; in this manner, the tool sleeve 20 is able to adjust the length and orientation of the inner tube segment 22 according to the location of the body lumen to create a structural condition for the gastroscope or bronchofiberscope to smoothly enter the body's mouth.

Referring to fig. 1, 6 and 7, the covering member 30 is mainly used for blocking the operation hole 10b, so that the mask as a whole can be used as a common mask (e.g., a breathing mask), for example, after the examination operation such as gastroscopy and respiratory endoscopy is completed or during other periods when the examination operation is not performed, the tool cannula 20 can be pulled out from the operation hole 10b, so as to block the operation hole 10b by using the covering member 30 after the tool cannula 20 is separated from the mask body 10, thereby equivalently enabling the mask body 10 to only activate the ventilation hole 10a to ventilate the patient.

In one embodiment, referring to fig. 6, the cover 30 is a generally T-shaped cylindrical structure, including a plug portion 31 and a flange portion 32; when the sealing cover member 30 is applied, the plug portion 31 is inserted into the operation hole passage 10b, and the outer contour shape thereof matches with the structure of the operation through hole 10b, so that the operation hole passage 10b can be sealed, and the outer surface side and the inner surface side of the mask body 10 are isolated; the flange portion 32 is provided around one end of the plug portion 31 so as to be positioned on the surface side of the mask body 10 after the plug portion 31 is inserted into the operation hole 10 b. Firstly, the flange part 32 can be used for facilitating the insertion of the plug part 31 into the operation hole 10b or the extraction of the plug part 31 from the operation hole 10 b; alternatively, the flange portion 32 may be attached to the end opening edge of the operation hole passage 10b to further close the operation through hole 10 b. Note that the dotted line marked with an arrow in fig. 7 represents the moving direction of the closing member 30 when closing is performed.

In particular implementations, the cover 30 may be removably attached to the mask body 10 by: there is no fixed connection structure between the plug portion 31 and the flange portion 32 and the mask body 10, so that the cover member 30 and the mask body 10 can be separated or combined as required; the cover member 30 may also be fixedly connected to the mask body 10, for example, the flange portion 32 is connected to the mask body 10 by a connecting band, so that the plug portion 31 can be inserted into the operation hole 10b or pulled out from the operation hole 10b while the cover member 30 is always connected to the mask body 10. In addition, the whole or a part of the sealing member 30 (such as the plug portion 31) may be made of a soft rubber material such as silica gel, so that the plug portion 31 is adapted to the hole wall structure of the operation hole 10b by using the material characteristics of the sealing member 30 that can be deformed reversely, so that the circumferential surface of the plug portion 31 can be tightly attached to the hole wall of the operation hole 10b, thereby tightly sealing the operation hole 10 b.

In other embodiments, the sealing member 30 may have other structures, for example, when the operation duct 10b has a pipe structure protruding from the surface of the mask body 10, a thread structure may be provided on the outer peripheral surface of the operation duct 10b, and the sealing member 30 has a structure similar to a bottle cap, so that the sealing member 30 can be screwed to the operation duct 10b to seal the port of the operation duct 10 b.

Based on this, on one hand, the cooperation of the operation hole 10b with the tool sleeve 20 and the sealing cover piece 30 can realize the conversion of the whole functions of the mask; in the case that the closing cap member 30 closes the operation duct 10b, the mask can be used as a general mask to assist the patient in oxygen inhalation and ventilation; when the gastroscope or the respiratory endoscope is examined, the sealing cover part 30 can be taken down to open the operation hole passage 10b, then the tool sleeve 20 is assembled on the mask main body 10 through the operation hole passage 10b, at the moment, the gastroscope or the bronchofiberscope can extend into the human body through the tool sleeve 20 to finish the corresponding diagnosis and treatment operation, and the whole process can simultaneously carry out diagnosis and treatment and ventilation because the mask does not need to be worn repeatedly, thereby effectively reducing the pain of a patient and creating conditions for the smooth implementation of the diagnosis and treatment operation. On the other hand, when the auxiliary tool needs to perform corresponding diagnosis and treatment operations through the oral cavity of a human body, such as gastroscopy or respiratory endoscopy, the end part of the tool sleeve 20 can be directly used as a mouthpiece or can play a role in the mouthpiece function, so that the purpose of protecting the auxiliary tool is achieved, and the auxiliary tool is prevented from being bitten or damaged.

In general, during the endoscopic diagnosis and treatment, the surfaces of auxiliary tools such as gastroscopes, bronchofiberscopes, nasal endoscopes and the like can adsorb liquid and liquid adherents such as gastric juice, sputum, nasal liquid and the like; on one hand, the body fluid adhesive can affect the surface cleanliness of the auxiliary tool, and increase the burden of sanitation and secondary reuse of the auxiliary tool; on the other hand, once the body fluid adhesive is splashed or drifted in the external environment (such as a surgical operation table), the risk of infection of the medical staff is increased, and other medical tools in the external environment are polluted. Based on this, a cleaning structure may be provided in the tool casing 20, which is configured to remove the adherent on the surface of the auxiliary tool during the process of pulling out the auxiliary tool from the tool casing 20, so as to prevent the adherent from splashing or falling in the external environment along with the auxiliary tool.

In one embodiment, referring to fig. 1, 2 and 5, the cleaning structure includes a cleaning via 20a, which may be a straight hole structure having a certain length, or may be a tapered hole or other hole-like structure, and the cleaning via 20a may be disposed inside the tool casing 20 (e.g., inside the outer pipe section 21 or the inner pipe section 22), and the cleaning via 20a is formed by necking a local portion inside the tool casing 20; it can also be located at the port of the outer pipe section 21 far away from the inner pipe section 21, for example, the port of the outer pipe section 21 is subjected to necking treatment; the key point is that on the premise of ensuring the communication between the cleaning through hole 20a and the pipe body space of the tool casing 20, at least part of the aperture of the cleaning through hole 20a needs to be adapted to the outer diameter of the auxiliary tool, for example, equal to or close to the outer diameter of the auxiliary tool; thereby enabling at least a portion of the bore wall of the clean via 20a to conform to the peripheral surface of the auxiliary tool; thus, when the auxiliary tool moves through the cleaning through hole 20a (e.g., when the auxiliary tool is pulled in the outward direction), the adhesive can be scraped away from the auxiliary tool by the close fit relationship between the hole wall of the cleaning through hole 20a and the surface of the auxiliary tool, so that the adhesive can not pass through the cleaning through hole 20a, and the risk that the body fluid adhesive splashes or falls in the external environment along with the auxiliary tool can be greatly reduced.

In one embodiment, referring to fig. 2, the cleaning via hole 20a is a substantially conical hole structure, so as to utilize the inclined structural feature of the hole wall to guide the adhesive and prevent the adhesive from concentrating in the port area of the cleaning via hole 20a after the adhesive is detached from the auxiliary tool; specifically, the clean via 20a has opposing conical top and bottom ports; wherein the cone top port is disposed facing the outer surface side of the mask body 10, the cone bottom port is disposed facing the inner surface side of the mask body 10, and the aperture of the cone top port should be adapted (e.g., equal or close) to the outer diameter of the auxiliary tool. Therefore, when the auxiliary tool passes through the cone top port, the adhered substances adsorbed on the surface of the auxiliary tool can be separated from the surface of the auxiliary tool due to the blocking, and the adhered substances can gradually flow towards the cone bottom port side along the inclined hole wall of the cleaning through hole 20a based on the flow effect of the fluid, so that the adhered substances can be removed, and meanwhile, conditions are created for collecting the adhered substances.

In one embodiment, referring to fig. 1, 2 and 5, the cleaning structure is disposed at the end of the tool sleeve 20 on the outer surface side of the mask body 10, which can also be understood as being disposed at the end of the outer tube section 21 away from the inner tube section 22, and includes a cover plate portion 20b and a weir portion 20 c; wherein the weir part 20c extends around the periphery of the tool sleeve 20 and toward the outer surface side of the mask main body 10, so that the cross-sectional form of the weir part 20c in the axial direction of the tool sleeve 20 is approximately an "L" -shaped form, and under the cooperation of the outer peripheral surface of the tool sleeve 20, a trough body structure which is distributed around the tool sleeve 20 and has an axial cross section approximately in a "U" -shaped form can be constructed by using the weir part 20 c; the cover plate portion 20b is disposed on the outer port side of the weir portion 20c or the tool sleeve 20 and covers the port of the weir portion 20c, and it can be understood that the cover plate portion 20b and the weir portion 20c are sequentially arranged at intervals from the outer surface side of the mask body 10 toward the inner surface side thereof, so that structural chambers distributed around the port can be formed on the periphery of the tool sleeve 20 by the cooperation of the cover plate portion 20b and the weir portion 20c, and the structural chambers can be used as storage chambers 20d capable of collecting and storing body fluid adhesive.

Specifically, the cleaning through hole 20a is disposed through the cover plate portion 20b, and the aperture of the conical bottom port of the cleaning through hole 20a is greater than or equal to the outer diameter of the outer port of the tool sleeve 20 (i.e., the outer diameter of the end portion of the outer pipe section 21), so that the end face of the conical bottom port of the cleaning through hole 20a can be located in the aforementioned U-shaped groove body space; when the body fluid adhesive is separated from the auxiliary tool under the action of the cone top port of the cleaning through hole 20a and flows to the cone bottom port along the inclined hole wall of the cleaning through hole 20a, the body fluid adhesive can drop into the space of the groove body, namely equivalently, into the storage cavity 20d, so that the collection and storage of the adhesive are completed, the body fluid can be prevented from splashing or falling into the external environment, and the body fluid can be prevented from flowing back into the cavity channel of the human body. In addition, the cleaning structure is disposed at the end of the tool sleeve 20, which also facilitates cleaning and disinfecting the tool sleeve 20.

In one embodiment, the cover plate portion 20b may be made of a soft rubber material entirely or around the cleaning through hole 20a, so as to ensure that the portion of the cover plate portion 20b contacting the surface of the auxiliary tool has sufficient flexibility or reversible deformability, thereby providing a guarantee for the close contact between the surface of the auxiliary tool and the hole wall of the cleaning through hole 20a and enhancing the removal effect of the adhered matter. In another embodiment, the cover portion 20b is removably attached to the dam portion 20c, such as by snap-fitting, screwing, or releasable bonding, to allow the body fluid adhesive stored therein to be removed by opening the storage compartment.

In other embodiments, under the condition that the body fluid adhesive does not flow back to the body cavity or under the diagnosis and treatment operation that the body fluid adhesive does not cause safety risk to the patient even if flowing back to the body cavity, the cofferdam part 20c can be omitted, and the cover plate part 20b is directly arranged in the tube space or at the port of the tool sleeve 20, so that the body fluid adhesive cannot splash or fall to the external environment; of course, it is also possible to provide a structure such as fluff in the space of the tool casing 20, or directly set the aperture of a local part of the tool casing 20 (such as the aperture of the outer pipe section 21) close to the outer diameter of the auxiliary tool, so as to perform the corresponding function of cleaning the structure or cleaning the through hole 20 a.

In order to ensure that the tool sleeve 20 can be firmly assembled with the mask body 10 during application to create conditions for smooth implementation of endoscopic diagnosis operation, a locking structure may be provided between the tool sleeve 20 and the mask body 10 (specifically, near the operation hole 10 b) to lock the tool sleeve 20 and the mask body 10 together after the tool sleeve 20 passes through the operation hole 10b, so as to prevent the main part of the tool sleeve 20 and the mask body 10 from being positionally displaced or separated from each other.

In one embodiment, referring to fig. 3 to 5, a first locking structure 25 is disposed on the outer circumferential surface of the outer tube section 21, a second locking structure 26 is disposed on the mask body 10 at the position of the operation duct 10b, and the first locking structure 25 and the second locking structure 26 cooperate to lock the tool sleeve 20 on the mask body 10; in specific implementation, the first locking structure 25 may be a plurality of barbs, and the barbs may be uniformly distributed around the outer tube section 21 at intervals, and correspondingly, the second locking structure 26 may be a flange structure formed by flanging the port edge of the operation hole 10b, after the tool sleeve 20 is inserted into the operation hole 10b, the tool sleeve 20 is rotated to enable the first locking structure 25 and the second locking structure 26 to be engaged in an aligned manner, so that the tool sleeve 20 (especially, the outer tube section 21) is locked on the mask main body 10, and the tool sleeve 20 is prevented from moving relative to the mask main body 10 along the axial direction of the operation hole 10 b. It should be noted that the dashed lines marked with arrows in fig. 3 represent the locking or unlocking direction of the tool sleeve 20.

Of course, the first locking structure 25 and the second locking structure 26 may also adopt other adaptive structural forms, for example, one of the first locking structure 25 and the second locking structure 26 may adopt a mortise-tenon joint structure, and the other one adopts a mortise-tenon joint structure; for another example, the first locking structure 25 and the second locking structure 26 may also be threaded, so that the tool sleeve 20 can be fixedly assembled to the mask body 10 in a threaded manner; all kinds, can consult current relevant structure and select the setting, the main points lie in: after the tool sleeve 20 is inserted through the operation hole 10b, the tool sleeve 20 can be locked by the locking structure, and the tool sleeve 20 can be separated from the mask body 10 by unlocking.

The present invention has been described in terms of specific examples, which are provided to aid understanding of the utility model and are not intended to be limiting. For a person skilled in the art to which the utility model pertains, several simple deductions, modifications or substitutions may be made according to the idea of the utility model.

Claims (10)

1. A mask, comprising:

the mask comprises a mask body, a mask body and a mask body, wherein the mask body is provided with a ventilation hole channel and an operation hole channel which are arranged at intervals, and the ventilation hole channel is used for ventilation;

the tool sleeve is used for being penetrated by an auxiliary tool and detachably arranged through the operation hole; and

a cover member for closing off the access opening when the tool sleeve is separated from the mask body, the cover member being provided to the mask body or being detachably connected to the mask body.

2. The mask according to claim 1, wherein the tool sleeve has a cleaning structure configured to remove stickers from the surface of the auxiliary tool when the auxiliary tool is pulled out of the tool sleeve.

3. A mask as claimed in claim 2, wherein the cleaning structure has a cleaning aperture which is in spatial communication with the body of the tool casing and at least part of the aperture of which is adapted to the outer diameter of the accessory tool so that at least part of the aperture wall of the cleaning aperture can engage the surface of the accessory tool to remove material adhering to the surface of the accessory tool as it moves through the cleaning aperture.

4. The mask according to claim 3, wherein the cleaning aperture is a generally conical structure having opposing conical top and bottom ports, the conical top port being disposed facing an outer surface side of the mask body, the conical bottom port being disposed facing an inner surface side of the mask body, and the conical top port having an aperture corresponding to an outer diameter of the accessory tool.

5. The mask according to claim 4, wherein the cleaning structure comprises a flap portion and a weir portion sequentially spaced from an outer surface side toward an inner surface side of the mask body, wherein:

the cleaning through hole penetrates through the cover plate part, and the aperture of the conical bottom port of the cleaning through hole is larger than or equal to the outer diameter of the tool sleeve;

the cofferdam part surrounds the periphery of the tool sleeve and extends to the cover plate part, so that a storage cavity is formed at the periphery of the tool sleeve and used for storing the adhesive which is separated from the surface of the auxiliary tool.

6. A mask as claimed in claim 5, wherein the cleaning formations are provided at the end of the tool cannula on the outer surface side of the mask body, the weir portions being fixedly provided around the end of the tool cannula, the flap portions releasably covering the connecting weir portions.

7. The mask according to claim 1, wherein the tool cannula includes an outer tube section and an inner tube section, the outer tube section being detachably disposed through the operation port, the inner tube section being located on the inner surface side of the mask body, and one end of the inner tube section being rotatably disposed in communication with the outer tube section, and the other end of the inner tube section being adapted to extend into the body cavity;

or

The tool sleeve comprises an outer pipe section and an inner pipe section, the outer pipe section penetrates through an operation hole channel in a detachable mode, the inner pipe section is located on the inner surface side of the mask main body, the inner pipe section is provided with a telescopic structure, so that the inner pipe section can stretch and bend, one end of the inner pipe section is communicated with the outer pipe section, and the other end of the inner pipe section is used for stretching into a cavity channel of a human body.

8. The mask according to claim 7, wherein one of the outer and inner tube sections is provided with an annular flange on its outer peripheral surface and an annular recess on its inner peripheral surface, the annular flange being in register with the annular recess to allow rotation of the inner tube section relative to the outer tube section.

9. A mask as claimed in claim 7, wherein the outer periphery of the outer tube section is provided with a first locking formation and the mask body is provided with a second locking formation at the location of the access opening, the first and second locking formations cooperating to enable locking of the tool cannula to the mask body.

10. The mask according to claim 1, wherein the closure member has:

the plug part is used for plugging the operation pore canal; and

and the flange part surrounds one end of the plug part, and is positioned on the outer surface side of the mask main body, so that the plug part can be inserted into or pulled out of the operation pore channel.

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