CN111760187A

CN111760187A - Switching sealing device and system

Info

Publication number: CN111760187A
Application number: CN202010763284.5A
Authority: CN
Inventors: 史铁英; 刘秀梅; 徐庶; 卞晓明; 杨戎
Original assignee: Dalian Corvivo Medical Co ltd
Current assignee: Dalian Corvivo Medical Co ltd
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2020-10-13

Abstract

The invention provides a transfer sealing device, comprising: the adapter device is connected with the external container and consists of a first body, a second body and an adapter part, wherein the adapter part is provided with a groove structure, and a preset groove is arranged in the groove structure; a through hole I is formed in the first body, and the first body is connected with a negative pressure suction device; a through hole II is formed in the second body; and the plugging structure is arranged in the preset groove and is matched and connected with a container cover of an external container, and the container cover is inserted into the groove structure. The invention also discloses a switching sealing system which comprises a pipe body I, a pipe body II, a joint and the switching sealing device. According to the invention, through the automatic matching between the blocking structure and the sputum collecting bottle, the fully-closed operation is realized, the sample is isolated from the outside in the whole operation process, the collected sputum is not exposed, and the sample is absolutely prevented from pollution.

Description

Switching sealing device and system

Technical Field

The invention relates to the technical field of medical instruments, in particular to a switching sealing device and a switching sealing system.

Background

In work, bacterial culture and drug susceptibility testing of sputum is an important tool for finding respiratory bacterial infection species and guiding clinical treatment protocols. The correctness of the clinical sputum culture specimen collection directly influences the correctness of the test result. Most of the patients with consciousness can cough the sputum into the specimen container by themselves. Patients with disturbance of consciousness, cough weakness, cough reflex disappearance, trachea intubation or tracheotomy and the like cannot expectorate sputum by themselves due to the reduction of respiratory tract clearing capacity, and usually adopt a negative pressure aspirator to suck the sputum so as to keep the respiratory tract unobstructed. Aiming at the retention of the sputum culture specimen of the patient, a corresponding collector is also provided.

At present, the existing sputum collector product is shown in figure 1, and has various problems:

1. not effectively sealed: when the sputum is collected, the upper cover needs to be opened, and the specimen is directly contacted with the outside air, so that the risk of cross contamination between the specimen and the environment is increased;

2. the operation is inconvenient: after the sputum suction is finished, firstly, the upper cover is rotated and removed, then, the container opening is closed by the original lower cover, and the cover needs to be rotated for 3 times;

3. the sputum collection container and the sputum suction joint are separated, and two hands are required to respectively hold the sputum collection container and the sputum suction joint;

4. no protective sleeve is arranged, gloves need to be worn in the operation process, and the tube body is exposed and easily polluted.

Disclosure of Invention

According to the technical problems that the existing sputum collector product is not effectively closed and inconvenient to operate, a sputum collecting container and a sputum suction connector are separated, two hands are required to respectively hold the sputum collecting container and the sputum suction connector, no protective sleeve is provided, gloves need to be worn in the operation process, and a tube body is exposed and is easy to be polluted, so that the switching sealing device and the switching sealing system are provided. According to the invention, the fully-closed operation is realized mainly through the automatic matching between the plugging structure and the sputum collection bottle, the sample is isolated from the outside in the whole operation process, the collected sputum is not exposed, and the sample is absolutely prevented from pollution; the disposable semi-closed sputum suction pipe can realize the disposable fully-closed sputum suction function by connecting the semi-closed joint.

The technical means adopted by the invention are as follows:

a transition seal, comprising:

the adapter device is connected with the external container and consists of a first body, a second body and an adapter part, the adapter part is provided with a groove structure, and a preset groove for accommodating the plugging structure is arranged in the groove structure; a through hole I communicated with the groove structure is formed in the first body, and the end part of the first body is connected with a negative pressure suction device; a through hole II communicated with the groove structure is formed in the second body;

the plugging structure is arranged in the preset groove and is matched and connected with a container cover of the external container, and the container cover is inserted into the groove structure; the plugging structure moves up and down in the preset groove;

after the external container is rotated anticlockwise, the container cover is matched and locked with the groove structure, the through hole I is communicated with an outlet of the external container, the through hole II is communicated with an inlet, negative pressure is applied to the through hole I, negative pressure is generated in the external container and the through hole II, and a sample collected in the through hole II is input into the external container; after the external container is rotated clockwise, the container cover is separated from the groove structure, meanwhile, the plugging structure is matched and locked with the boss, the inlet and the outlet are sealed, and then the plugging structure is separated from the switching device along with the outward movement of the external container, so that the sealed collection of the specimen is completed.

Further, the external container comprises a container cover and a container body with a hollow cavity structure inside, and the container cover is in threaded connection with the container body; a boss is arranged above the container cover and inserted into the groove structure, and the boss is provided with the inlet and the outlet which are communicated with the container body;

the shape and contour of the plugging structure are matched with those of the bosses.

Further, the thickness of the plugging structure is equal to the depth of the preset groove;

the plugging structure is a sheet structure or one or a combination of a plurality of tubular structures, similar round structures, similar rectangular structures and the like;

the shape of the plugging structure is U-shaped, circular, annular or rectangular;

the blocking structure is connected with the container cover through a buckle, bulges are arranged on two sides of the blocking structure, and the bulges are matched and locked with the inlet and the outlet. After the external container is rotated clockwise to a specified position, bulges on two sides of the plugging structure are clamped into the inlet and the outlet respectively, and the plugging structure is connected with the container cover in a locking manner.

Furthermore, the container cover is connected with the groove structure in a buckling mode, the boss is provided with a clamping groove, the inner wall of the groove structure is provided with a protrusion, and the clamping groove is matched with the protrusion in a locking mode to be connected, so that the container cover is stably and firmly matched with the switching device. When the external container is rotated anticlockwise, the protrusion on the groove structure is clamped into the clamping groove at the lower part of the accommodating boss, and the container cover is locked with the groove structure; when the external container is rotated clockwise, the protrusion is moved out of the clamping groove, and the container cover is separated from the groove structure.

Furthermore, the first body is provided with a pressure relief hole communicated with the through hole I, two sides of the first body are provided with slide ways, the slide ways are connected with slide covers in a matched mode, and the slide covers move on the slide ways in a reciprocating mode to realize the closing and opening of the pressure relief hole.

The invention also provides a transit sealing system for sputum collection and alveolar lavage, comprising: the pipe comprises a pipe body I, a pipe body II, a joint and any one of the switching sealing devices, wherein two ends of the pipe body I are respectively connected with the switching sealing device and the joint;

the end part of the pipe body I is provided with a tail cover, and the tail cover is connected with the end part of the second body;

the second body is provided with a positive pressure joint and a three-way and two-way switch for realizing connection and disconnection of two passages, the positive pressure joint is communicated with the tube body II, and the switch is rotated until the positive pressure joint is communicated with the through hole II to realize alveolar lavage; the switch is rotated to the pipe body I is communicated with the through hole II, so that sputum collection is realized.

Further, the outside cover of pipe shaft I is equipped with the pipe shaft protective sheath, the both ends of pipe shaft protective sheath are fixed respectively the tail-hood with on the joint.

Further, the joint is a sputum suction pipe joint, a semi-closed joint or a fully-closed joint;

the semi-closed joint comprises a joint I, the joint I comprises a far-end structure and a joint body, and the far-end structure is connected with the joint body in a sealing mode;

the far-end structure is a double-layer structure and is connected with an external connector or a trachea cannula tube body, and an inner cavity channel is arranged inside the far-end structure;

the middle part of the joint body is provided with a through hole communicated with the inner cavity channel, and the pipe body I sequentially penetrates through the through hole and the inner cavity channel and penetrates to the outside of the inner cavity channel;

the connector body is at least provided with two air exchange holes communicated with the outside in the circumferential direction, an air exchange channel is arranged inside the connector body, negative pressure is generated in the sputum suction tube body when sputum is sucked, because the two sides of the air exchange channel are respectively communicated with the air exchange holes and the through holes, air sequentially passes through the air exchange holes, the air exchange channel, the through holes, the inner cavity channel, the trachea cannula tube body and the lungs of a patient and enters the tube body I, and air circulation simultaneously drives the sputum of the lungs of the patient to be sucked.

Furthermore, the through hole is of a variable diameter structure or a multi-inner-diameter structure;

the near end of the joint body is provided with an inner diameter shrinkage table, a through inner hole communicated with the through hole is formed in the inner diameter shrinkage table, and the inner hole is used for the pipe body I to pass through;

the inner wall of hole with the outer wall laminating of shaft I is connected, the internal diameter of hole equals or slightly is less than the external diameter of shaft I, the internal diameter of inner chamber way is greater than the external diameter of shaft I guarantees the negative pressure of I distal end of shaft I does not conduct extremely in the shaft protective sheath.

Further, a protective cover is connected to the end of the distal structure in a matching manner, and is used for closing the joint after the operation is finished;

the protective cover is of an inwards concave structure, and a groove is formed in the protective cover, so that the inner wall is prevented from being polluted during operation;

the inner size of the groove is larger than the outer wall size of the far-end outer shell, so that when the protective cover is opened and closed, operators are not polluted;

the protective cover with outer shell integrated into one piece of distal end, or connect through hot melt fit, or connect through sticky fit, or connect through welded connection, or connect through the hasp.

Furthermore, the double-layer structure consists of a far-end inner-layer conical tube arranged on the inner layer and a far-end outer-layer shell arranged on the outer layer, and the external connector comprises a tracheal intubation connector or a multi-purpose connector of a breathing machine;

a gap is formed between the outer wall of the distal end inner-layer conical tube and the inner wall of the distal end outer-layer shell; the inner wall of the far-end outer shell is connected with the external connector in a matched mode, and the outer wall of the far-end outer shell is a handheld part; the outer shape of the far-end inner-layer conical tube is a circular truncated cone structure, the outer wall of the far-end inner-layer conical tube is connected with trachea cannula tube bodies in a matched mode, and the inner cavity channel is formed in the far-end inner-layer conical tube.

Further, the connection mode between the joint body and the pipe body protective sleeve of inhaling phlegm pipe body overcoat is hot melt fit connection, or sticky fit connection, or welded connection, or is connected with physical means through the protective sleeve buckle, wherein, the outer wall that connects the body is equipped with the buckle, one side of protective sleeve buckle with the buckle cooperation is connected, the opposite side with the pipe body protective sleeve that I overcoat of pipe body was established links to each other.

Compared with the prior art, the invention has the following advantages:

1. according to the switching sealing device and the system, the plugging structure and the sputum collecting bottle are automatically matched, so that full-closed operation is realized, the sample is isolated from the outside in the whole operation process, the collected sputum is not exposed, and the sample is absolutely prevented from pollution.

2. The switching sealing device and the switching sealing system provided by the invention have the advantages that the lower cover in the existing product is eliminated, and the operation of rotating the cover for 3 times in the existing product is simplified into 1 time. The operation of rotating to remove the cover is simplified to 90 degrees of torsion.

3. The switching sealing device and the switching sealing system provided by the invention are additionally provided with the plugging structure, so that the opening of the bottle can be automatically sealed after the sputum collection is finished, and the full sealing and automation of the operation process are realized.

4. According to the switching sealing device and the switching sealing system, the outer part of the tube body is protected by the sheath, so that cross infection of a patient, an operator and the environment is effectively reduced.

5. The switching sealing device and the system provided by the invention are provided with the three-way connector, can realize the switching of sputum suction and alveolar lavage functions, are convenient to operate, are multifunctional, and can enhance the sputum suction effect.

6. The switching sealing device and the switching sealing system provided by the invention can be matched with a multifunctional joint, so that the tracheal cannula joint and the tracheal cannula body with different specifications can be directly inserted, and the sealing effect can be kept.

7. The switching sealing device and the switching sealing system provided by the invention adopt an integrated design and are matched with a sliding cover design, so that the one-hand operation of a sputum suction process can be realized, and the operation flow is simplified.

8. The switching sealing device and the switching sealing system provided by the invention simplify the sampling operation, reduce the nursing time, realize the complete isolation and sealing of the sample from the outside, have the full-automatic sealing process and are simple and convenient to operate.

9. The switching sealing device and the switching sealing system provided by the invention do not need to wear a glove to collect phlegm, the pipe body is isolated from the outside by the protective sleeve, and the operation is simple and convenient.

12. The semi-closed joint of the switching sealing device and the system can enable the disposable semi-closed sputum suction tube to realize the disposable fully-closed sputum suction function, and in addition, the multi-use function close to the fully-closed sputum suction tube can be realized due to the multi-adaptability and the additional protective cover. The cost is far lower than that of the totally-enclosed sputum suction device on the current market. The semi-closed joint can be in butt joint with a tracheal cannula joint, a multifunctional joint of a breathing machine and a tracheal cannula tube body, and has wide adaptability.

13. The semi-closed joint of the switching sealing device and the system provided by the invention is provided with the air exchange hole, so that the phenomenon that sputum cannot be sucked out (without air convection) during sputum suction can be prevented, the phenomenon that the sputum cannot be breathed during the sputum suction can also be prevented, and the asphyxia is avoided. The semi-closed connector is provided with an air exchange channel for communicating the inside of the connector with the outside, so that the circulation of air in sputum suction can be realized, and sputum suction is facilitated. The internal diameter shrink platform that semi-closed joint near-end set up can prevent to inhale I negative pressure of phlegm pipe shaft and transmit to in the pipe shaft protective sheath, avoids the attached phlegm pipe shaft I of inhaling of pipe shaft protective sheath, reduces and inhales the phlegm degree of difficulty. The semi-closed joint is provided with a protective cover, so that the environment is prevented from being polluted after the instrument is used, meanwhile, the semi-closed joint can be used for the same patient for many times after being completely closed, and the economic burden is reduced.

In conclusion, the technical scheme of the invention can solve the problems that the sputum collector product in the prior art is not effectively sealed, the operation is inconvenient, the sputum collection container and the sputum suction joint are separated, two hands are required to respectively hold the sputum collection container and the sputum suction joint for operation, no protective sleeve is needed, gloves are required to be worn in the operation process, and the tube body is exposed and easily polluted.

For the reasons, the invention can be widely popularized in the fields of medical treatment and the like which need switching sealing.

Drawings

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

Fig. 1 is a schematic view of a conventional sputum collector.

Fig. 2 is a schematic structural view of an integrated and fully-enclosed sputum collector in embodiment 2 of the present invention.

Fig. 3 is a schematic structural diagram of the connection between the integrated and fully-enclosed sputum collector and the semi-enclosed connector in embodiment 3 of the present invention.

Fig. 4 is a schematic structural view of a transfer joint in embodiment 2 of the present invention.

FIG. 5 is an exploded view of the sputum collection bottle and the closure structure of example 2 of the present invention.

Fig. 6 is a schematic structural view of a joint body in embodiment 2 of the present invention.

Fig. 7 is a schematic structural view of a semi-hermetic connector in embodiment 3 of the present invention.

FIG. 8 is a schematic structural view of a linker I in example 3 of the present invention.

Fig. 9 is a top view of fig. 8.

Fig. 10 is a cross-sectional view taken at a-a in fig. 9.

Fig. 11 is a front view of fig. 8.

Fig. 12 is a cross-sectional view at B-B in fig. 11.

Fig. 13 is a sectional view of the coupling and the endotracheal tube coupling in embodiment 3 of the present invention.

Fig. 14 is a sectional view of the coupling of the adapter to the body of the endotracheal tube in example 3 of the present invention.

FIG. 15 is a schematic view showing the air circulation in the air exchange channel during sputum suction according to the present invention.

Fig. 16 is a schematic structural view of an integrated and fully-enclosed sputum collector in embodiment 4 of the present invention.

Fig. 17 is a schematic structural view of a swivel and a plugging structure in embodiment 4 of the present invention.

FIG. 18 is a schematic diagram of the structure of the plugging structure and the external container in example 4 of the present invention

Fig. 19 is a schematic view of the structure of the closure structure of example 4 of the present invention having an opening communicating with the container lid opening of the circumscribing container.

Fig. 20 is a schematic structural view of the plugging structure closing the opening of the container lid of the external container in embodiment 4 of the present invention.

Fig. 21 is a schematic structural diagram illustrating that the external container is sealed by the sealing structure and separated from the adapter after sputum suction is finished in embodiment 4 of the present invention.

In the figure: 1. an adapter; 2. a sputum collection bottle; 3. a blocking structure; 4. a pipe body protecting sleeve; 5. a pipe body I; 6. and (4) a joint.

11. A connector body; 12. a sliding cover; 13. a tail cover; 111. a pressure relief vent; 112. a positive pressure joint; 113. a switch; 114. presetting a groove;

21. a bottle body; 22. a bottle cap; 221. a boss; 222. an air inlet; 223. an exhaust hole;

61. a joint I; 62. a protective sleeve is buckled; 63. a tracheal cannula joint; 64. a tracheal cannula body;

611. a connector body; 612. a protective cover; 613. an air exchange aperture; 614. a distal inner layer conical tube; 615. a distal outer shell; 616. buckling; 617. an inner diameter retraction stage; 618. an air exchange channel.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

As shown, the present invention provides a transition sealing device comprising:

the adapter device comprises a first body, a second body and an adapter part, wherein the adapter part is provided with a groove structure, and a preset groove 114 for accommodating the plugging structure is arranged in the groove structure; a through hole I communicated with the groove structure is formed in the first body, and the end part of the first body is connected with a negative pressure suction device; and a through hole II communicated with the groove structure is formed in the second body. The first body is provided with a pressure relief hole 111 communicated with the through hole I, the two sides of the first body are provided with slideways, the slideways are connected with a sliding cover 12 in a matched mode, and the sliding cover 12 moves on the slideways in a reciprocating mode to achieve sealing and opening of the pressure relief hole 111. Wherein, inhale when the phlegm pipe shaft gets into the patient internal, pressure release hole 111 is open, because if airtight pressure release hole 111 this moment, intraductal negative pressure that exists makes the pipe adsorb in tracheal wall easily, can't be too big to the patient lung with the pipe shaft deep-going in simultaneously to the patient stimulation. The pipe body is deeply inserted into the designated position, the pressure relief hole 111 is sealed, and the pipe body is pulled out, so that the sputum suction action can be completed.

The container, namely the external container, is connected with the adapter and comprises a container cover and a container body with a hollow cavity structure inside, and the container cover is in threaded connection with the container body; the upper portion of the container cover is provided with a boss 221, the boss 221 is inserted into the groove structure, and the boss 221 is provided with an inlet and an outlet communicated with the container body. The container cover is connected with the groove structure in a buckling mode, a clamping groove is formed in the boss 221, a protrusion is arranged on the inner wall of the groove structure, the clamping groove is matched with the protrusion in a locking mode, and the container cover is stably and firmly matched with the switching device. When the external container is rotated anticlockwise, the protrusion on the groove structure is clamped into the clamping groove at the lower part of the accommodating boss 221, and the container cover is locked with the groove structure; when the external container is rotated clockwise, the protrusion is moved out of the clamping groove, and the container cover is separated from the groove structure.

The plugging structure is arranged in the preset groove 114 and is matched and connected with the boss 221; the plugging structure moves up and down in the pregroove 114. Wherein the thickness of the blocking structure is equal to the depth of the preset groove 114; the plugging structure is a sheet structure or one or a combination of a plurality of tubular structures, similar round structures, similar rectangular structures and the like, and the plugging structure is U-shaped, round, annular or rectangular. The blocking structure is connected with the container cover through a buckle, bulges are arranged on two sides of the blocking structure, and the bulges are matched and locked with the inlet and the outlet. After the external container is rotated clockwise to a designated position, bulges on two sides of the plugging structure are respectively clamped into the inlet and the outlet, and the plugging structure is connected with the container cover in a locking way.

After the container is rotated anticlockwise, the through hole I is communicated with the outlet, the container cover is matched and locked with the groove structure, the through hole II is communicated with the inlet, negative pressure is applied to the through hole I, negative pressure is generated in the container and the through hole II, and a specimen collected in the through hole II is input into the container body; after the container is rotated clockwise, the container cover is separated from the groove structure, meanwhile, the blocking structure is matched, locked and connected with the boss 221, and after the inlet and the outlet are sealed, the blocking structure is separated from the switching device along with the outward movement of the container, so that the sealed collection of the specimen is completed.

The switching sealing device of the embodiment can be applied to sputum collection, alveolar lavage and natural cavity body fluid collection devices.

Example 2

As shown in figure 2, the invention provides an integrated and totally-enclosed sputum collector, which comprises a switching sealing device, a tube body protective sleeve 4 and a tube body I5. The sealing device is connected with one end of the tube body I5, the outer side of the tube examination is sleeved with a tube body protective sleeve 4, and the other end of the tube body I5 is connected with the existing sputum suction tube joint. Switching sealing device includes adapter 1, sputum collection bottle 2 and block structure, and this block structure is shutoff piece 3. Adapter 1 includes joint main part 11, sliding closure 12 and tail-hood 13, and sputum collection bottle 2 includes bottle 21 and bottle lid 22, and bottle lid 22 passes through screw-thread fit with bottle 21. As shown in fig. 4 and 5.

The connector main body 11 is provided with a pressure relief hole 111, and the sliding cover 12 can reciprocate through a slide preset on the connector main body 11, so as to realize the closing and opening of the pressure relief hole 111. When the sliding cover 12 moves to a position right above the pressure relief hole 111, the pressure relief hole 111 is closed, and when the sliding cover 12 moves to a position outside the range of the pressure relief hole 111, the pressure relief hole 111 is opened.

Tail-

cap

13 and 11 right side tip threaded connection of joint main part, the one end of pipe shaft protective sheath 4 is fixed on tail-cap 13, connects main part 11 and pipe shaft protective sheath 4 and connects in an organic whole through tail-cap 13, and penetrating, the through-hole that runs through is respectively seted up to the near-end and the distal end that connect main part 11, and the right side is the near-end, and the left side is the distal end. The near-end through hole and the far-end through hole are positioned on the same straight line, and the two through holes are coaxially arranged and used as a passage for sputum collection and alveolar lavage. In addition, the axis of the distal through hole is perpendicular to the axis of the pressure relief hole 111.

The middle part of the joint main body 11 is provided with a circular groove structure with a downward opening, a preset groove 114 is formed in the groove structure, the plugging piece 3 is located in the preset groove 114 of the joint main body 11, the shape of the preset groove 114 is matched with that of the plugging piece 3, and the plugging piece 3 and the preset groove 114 can only move up and down relative to the joint main body 11. As shown in fig. 6. The axial plane of the pre-groove 114 is perpendicular to the axis of the distal through-hole.

The top of the bottle cap 22 is provided with a boss 221, and both sides of the boss 221 are provided with an air inlet hole 222 and an air outlet hole 223;

the projection 221 can be inserted into the groove structure of the connector body 11, and at this time, the blocking piece 3 is located between the projection 221 and the predetermined groove 114 of the connector body 11, and the bottle cap 22 can be twisted along the center line of the connector body 11, so as to communicate the air inlet hole 222 and the air outlet hole 223 with the through holes at the proximal end and the distal end of the connector body 11, respectively. The boss 221 is a cuboid structure, the length of the boss is close to the diameter of the groove structure, the plugging piece 3 is a sheet structure, the thickness of the plugging piece is equal to the depth of the preset groove 114, the plugging piece 3 is embedded into the preset groove 114, the plugging piece 3 is U-shaped, the U-shaped is formed by two arc-shaped pieces which are vertically and symmetrically arranged on two sides of the rectangular piece, and the space profile between the rectangular piece and the arc-shaped pieces on the two sides is consistent with the profile formed by the top surface and the two side surfaces of the boss 221.

Connect main part 11 rear portion to be equipped with malleation and connect 112 and switch 113, malleation connects 112 and is linked together with the pipeline through-hole in the middle of the pipe shaft II, and switch 113 is three-way two-way switch 113, and accessible switch 113 realizes the connection and the disconnection of two passageways, and wherein adapter 1's near-end through-hole and pipe shaft I5 are connected and can be realized the sputum and gather the function, and malleation connects 112 and is connected with pipe shaft II and can realize alveolar lavage function.

The operation process of the embodiment is as follows:

(1) the sputum collection process:

connecting the switching sealing device and the system to a negative pressure suction apparatus, starting negative pressure, and conveying the sputum suction tube body to the bronchus position of a patient along the tracheal cannula; through promoting sliding closure 12, seal pressure release hole 111, begin the sputum collection, entire system has only a passageway of being connected with the external world of pipe shaft distal end this moment, attracts the sputum through this passageway. Sputum in patient's lung or the air flue is sucked to the sputum sampling bottle by the negative pressure in, finishes when the sputum collection, for preventing cross contamination, realizes the separation of sputum sampling bottle and sputum suction device through displacement or torsion action each other of part. Twist reverse 90 through gathering the bottle 2 with the sputum promptly, realize the separation of sputum collection bottle 2 and adapter 1, this in-process, shutoff piece 3 and bottle lid 22's boss 221 automatic coordination, 3 lids of shutoff piece are in the boss 221 outside, inlet port 222 and the exhaust hole 223 with the boss 221 both sides seal, sample and environment in the sputum collection bottle 2 are isolated, it is airtight to have realized the sample in the

sputum collection bottle

2, 2 sputum collection bottle 2 that will collect the sample pass to the detection room, when will examining the sample, relative rotation bottle body 21 and bottle lid 22 can realize the separation of each other, take out the sample.

(2) Alveolar lavage procedure:

the syringe head end that will be equipped with normal saline connects 112 with the malleation that connects the main part 11 rear portion to toggle switch 113 for adapter 1 near-end through-hole seals, and malleation connects 112 and II inner chambers of pipe shaft intercommunication simultaneously. The saline in the syringe is injected into the positive pressure connector 112, and then the saline is injected into the lung of the patient along the inner cavity of the tube body II. The switch 113 is toggled again to open the inner cavity of the through hole at the near end of the adapter 1, and meanwhile, the positive pressure joint 112 is isolated from the inner cavity of the tube body II. Inserting the distal pagoda-shaped head end of the adapter 1 into the negative pressure aspirator, starting a normal suction process, completely sucking out the physiological saline filled into the lung of a patient, and simultaneously driving the suction out of the lung viscous sputum.

Example 3

As shown in fig. 3, the difference from the embodiment 2 is that the other end of the pipe body i 5 in the embodiment is connected to a semi-closed joint. This semi-closed connects including connecting I61 and protective sheath buckle 62, and the near-end outer wall that connects I61 is equipped with buckle 616, and one side and the buckle 616 cooperation of protective sheath buckle 62 are connected, and the pipe shaft protective sheath 4 that the opposite side and pipe shaft I5 overcoat were established links to each other.

As shown in fig. 7-14. The joint I61 comprises a distal structure and a joint body 611, and the distal structure is hermetically connected with the joint body 611. In addition, the connection mode between the pipe body protective sheath 4 that connects body 11 and pipe body I5 overcoat to establish is except using protective sheath buckle 2, still can be for hot melt fit to connect, or sticky fit connects, or welded connection.

The far-end structure is a double-layer structure, the double-layer structure is composed of a far-end inner-layer conical tube 614 arranged on the inner layer and a far-end outer-layer shell 615 arranged on the outer layer, and a gap exists between the outer wall of the far-end inner-layer conical tube 614 and the inner wall of the far-end outer-layer shell 615; the inner wall of the far-end outer shell 615 can be connected with a trachea cannula joint 63 or a multi-purpose joint of a breathing machine in a matching way, and the outer wall of the far-end outer shell 615 is a handheld part; the outer shape of the distal end inner layer conical tube 614 is a circular truncated cone structure, the outer wall of the distal end inner layer conical tube 614 is connected with a plurality of types of trachea cannula tube bodies 64 in a matching mode, and an inner cavity channel is arranged inside the distal end inner layer conical tube 614 and is a channel of the tube body I5.

The middle part of the joint body 611 is provided with a through hole communicated with the inner cavity channel for the pipe body I5 to pass through, and the pipe body I5 sequentially passes through the through hole and the inner cavity channel and penetrates to the outside of the inner cavity channel. The through hole is of a diameter-variable structure or a multi-inner-diameter structure, the diameter-variable structure means that the inner diameter of the near end of the through hole is close to the outer diameter of the pipe body I5, so that no gap exists between the through hole and the pipe body I5, and the negative pressure is ensured not to be transmitted into the pipe body protective sleeve 5 (if negative pressure exists in the pipe body protective sleeve 4, the negative pressure can be sucked and held back); the multi-inner-diameter structure has the same purpose as that of the reducing structure, the reducing structure is gradually changed, and the cross section of the multi-inner-diameter structure is step-shaped; an inner diameter shrinkage platform 617 (inner diameter shrinkage design) is arranged at the near end of the joint body 611, a through inner hole communicated with the through hole is formed inside the inner diameter shrinkage platform 617, and the inner hole is used for the pipe body I5 to pass through; the inner wall of hole is connected with the outer wall laminating of shaft I5, and the internal diameter of hole connects with shaft I5's external diameter and is close, and the internal diameter of inner chamber way is greater than shaft I5's external diameter, guarantees that the negative pressure of shaft I5 distal end does not conduct to in the shaft protective sheath 4.

The connector body 611 is provided with at least two air exchange holes 613 communicated with the outside in the circumferential direction, the air exchange holes 613 are obliquely arranged, the opening of the air exchange holes 613 faces the oral direction of a patient, namely, the axial line of the air exchange holes 613 and the central axis of the connector body 611 form a certain included angle, and the included angle is less than or equal to 90 degrees, so that spray can be prevented; the interior of the connector body 611 is provided with a hidden air exchange channel 618, two sides of the air exchange channel 618 are respectively communicated with the air exchange hole 613 and the through hole, and the air exchange channel 618 is used for communicating the inner cavity of the connector 6 with the outside, so that suffocation of a patient in the sputum suction process can be prevented. When sputum attracts, be the negative pressure in the pipe shaft I5, the air gets into pipe shaft I5 through air exchange hole 613, air exchange channel 618, through hole, inner chamber way, trachea cannula pipe shaft 64, patient's lung in proper order, and air cycle drives the absorption of patient's lung sputum simultaneously. The air circulation in the air exchange channel 618 during sputum aspiration is shown in FIG. 15.

A protecting cover 612 is fittingly connected to an end of the distal outer shell 615, and is used for closing the joint 6 after the operation is completed; the protective cover 612 is of a concave structure, and a groove is formed in the protective cover to prevent the inner wall from being polluted during operation; the internal dimension of the groove is larger than the external wall dimension of the distal outer shell 615, ensuring that the operator is not polluted when the protective cover 612 is opened and closed; the shield cap 612 is integrally formed with the distal outer shell 615, either by a heat-fused fit, an adhesive fit, a welded connection, or a snap-fit connection.

The integrated fully-closed sputum collector and the semi-closed connector are matched for use, so that the product can be fully matched with the trachea cannula connector 63 and the trachea cannula tube body 64. Meanwhile, the semi-closed joint is provided with a protective cover 612, so that the sputum can be prevented from being exposed after the sputum suction process is finished.

Example 4

What differs from embodiment 3 is that, the block structure is the disc structure in this embodiment, and the block structure is connected with the sputum collection bottle lid to the disc can be rotatory on the sputum collection bottle lid, is equipped with two axial through-holes on the disc, is equipped with two holes on the sputum collection bottle lid equally, and the intercommunication and the dislocation of through-hole on the hole that the sputum collection bottle was covered and the disc are realized to the rotatory disc of accessible, and when two pairs of holes presented the dislocation state, the disc will adopt the sputum bottle lid to seal. As shown in fig. 16-21.

Example 5

Different from embodiment 4, the plugging structure in this embodiment is a cylindrical structure, a cylindrical groove is arranged inside the plugging structure, the predetermined groove 114 arranged inside the groove structure is a cylindrical groove with a certain depth, and the plugging structure is embedded into the predetermined groove 114. The boss 221 has a cylindrical structure, and an external thread is formed on an outer surface thereof. The boss 221 is inserted into the cylindrical groove of the plugging structure, an internal thread is arranged on the inner surface of the cylindrical groove, and the internal thread is matched and connected with the external thread of the boss 221, so that locking between the plugging structure and the boss 221 is realized. Two holes are formed in the side wall of the blocking structure, when the external container rotates to a designated position, the two holes in the blocking structure are respectively communicated with the air inlet hole 222 and the air outlet hole 223 in the boss 221 to perform sputum suction operation, after sputum suction is completed, the external container is rotated, the blocking structure is in locking connection with the boss 221, the external container is pulled out after the inlet and the outlet are closed, the blocking structure moves outwards along with the external container to separate from the switching device, and closed collection of samples is completed.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A transition seal assembly, comprising:

the adapter device is connected with an external container and comprises a first body, a second body and an adapter part, wherein the adapter part is provided with a groove structure, and a preset groove (114) for accommodating the plugging structure is arranged in the groove structure; a through hole I communicated with the groove structure is formed in the first body, and the end part of the first body is connected with a negative pressure suction device; a through hole II communicated with the groove structure is formed in the second body;

the plugging structure is arranged in the preset groove (114) and is matched and connected with a container cover of the external container, and the container cover is inserted into the groove structure; the plugging structure moves up and down in the preset groove (114);

after the external container is rotated anticlockwise, the container cover is matched and locked with the groove structure, the through hole I is communicated with an outlet of the external container, the through hole II is communicated with an inlet, negative pressure is applied to the through hole I, negative pressure is generated in the external container and the through hole II, and a sample collected in the through hole II is input into the external container; after the external container is rotated clockwise, the container cover is separated from the groove structure, meanwhile, the sealing structure is matched, locked and connected with the container cover, and after the inlet and the outlet are sealed, the sealing structure is separated from the switching device along with the outward movement of the external container, so that the sealed collection of the specimen is completed.

2. The transit sealing apparatus according to claim 1, wherein the outer container comprises a container cover and a container body having a hollow cavity structure therein, and the container cover and the container body are screw-coupled; a boss (221) is arranged above the container cover, the boss (221) is inserted into the groove structure, and the boss (221) is provided with the inlet and the outlet which are communicated with the container body;

the outline of the blocking structure is matched with the boss (221).

3. A transit sealing device according to claim 1 or 2, characterized in that the thickness of said blocking structure is equal to the depth of said prefixed groove (114);

the plugging structure is a sheet structure or one or a combination of a plurality of tubular structures, similar round structures and similar rectangular structures;

the blocking structure is connected with the container cover through a buckle, bulges are arranged on two sides of the blocking structure, and the bulges are matched and locked with the inlet and the outlet.

4. The switching sealing device according to claim 1 or 2, wherein the container cover is connected with the groove structure by a snap fit, the boss (221) is provided with a clamping groove, the inner wall of the groove structure is provided with a protrusion, and the clamping groove is matched and locked with the protrusion to realize stable and firm matching of the container cover and the switching device.

5. The transit sealing device according to claim 1, wherein the first body is provided with a pressure relief hole (111) communicated with the through hole I, slide ways are arranged on two sides of the first body, the slide ways are connected with a slide cover (12) in a matching manner, and the slide cover (12) moves on the slide ways in a reciprocating manner to realize the closing and opening of the pressure relief hole (111).

6. A transit sealing system for sputum collection and alveolar lavage, comprising: the pipe body I (5), the pipe body II, the joint (6) and the switching sealing device as claimed in any one of claims 1 to 5, wherein two ends of the pipe body I (5) are respectively connected with the switching sealing device and the joint (6);

a tail cover (13) is arranged at the end part of the pipe body I (5), and the tail cover (13) is connected with the end part of the second body;

the second body is provided with a positive pressure joint (112) and a three-way and two-way switch (113) for realizing the connection and disconnection of two passages, the positive pressure joint (112) is communicated with the tube body II, and the switch (113) is rotated until the positive pressure joint (112) is communicated with the through hole II to realize the alveolar lavage; and rotating the switch (113) until the tube body I (5) is communicated with the through hole II to realize sputum collection.

7. The transit sealing system according to claim 6, characterized in that a pipe body protecting sleeve (4) is sleeved on the outer portion of the pipe body I (5), and two ends of the pipe body protecting sleeve (4) are respectively fixed on the tail cover (13) and the joint (6).

8. The transit sealing system according to claim 6, wherein said joint (6) is a sputum aspirator joint, a semi-hermetic joint or a fully hermetic joint;

the semi-closed joint comprises a joint I (61), wherein the joint I (61) comprises a far-end structure and a joint body (611), and the far-end structure is connected with the joint body (611) in a sealing mode;

the far-end structure is a double-layer structure and is connected with an external connector or a trachea cannula tube body (64), and an inner cavity channel is arranged inside the far-end structure;

a through hole communicated with the inner cavity channel is formed in the middle of the joint body (611), and the pipe body I (5) sequentially penetrates through the through hole and the inner cavity channel and penetrates to the outside of the inner cavity channel;

the connector body (611) is provided with at least two air exchange holes (613) communicated with the outside in the circumferential direction, an air exchange channel (618) is arranged inside the connector body (611), negative pressure is generated in the tube body I (5) during sputum suction, air enters the tube body I (5) after passing through the air exchange holes (613), the air exchange channel (618), the through hole, the inner cavity channel, the trachea cannula tube body (64) and the lung of a patient in sequence because two sides of the air exchange channel (618) are respectively communicated with the air exchange holes (613) and the through hole, and air circulation simultaneously drives the sputum suction of the lung of the patient.

9. The transition sealing system according to claim 8, wherein the through-hole is of a reducing configuration or a multi-bore configuration;

an inner diameter shrinkage platform (617) is arranged at the near end of the joint body (611), a through inner hole communicated with the through hole is formed in the inner part of the inner diameter shrinkage platform (617), and the inner hole is used for the pipe body I (5) to pass through;

the inner wall of hole with the outer wall laminating of pipe shaft I (5) is connected, the internal diameter of hole equals or is less than the external diameter of pipe shaft I (5), the internal diameter that the lumen was said is greater than the external diameter of pipe shaft I (5), guarantees the negative pressure of pipe shaft I (5) distal end does not conduct extremely in pipe shaft protective sheath (4).

10. The transit sealing system according to claim 8, wherein a protecting cover (612) is fittingly connected to an end of said distal structure for closing said joint (6) after completion of the operation;

the protective cover (612) is of an inwards concave structure, and a groove is formed in the protective cover to prevent the inner wall from being polluted during operation;

the inner dimension of the groove is larger than the outer wall dimension of the far-end outer shell (615), so that when the protective cover (612) is opened and closed, an operator is not polluted;

the protective cover (612) is integrally formed with the distal outer shell (615), or is connected by a hot-melt fit, or is connected by an adhesive fit, or is connected by welding, or is connected by a latch.

11. The transition sealing system according to claim 8 or 10, wherein the double structure is composed of a distal inner conical tube (614) disposed at the inner layer and a distal outer shell (615) disposed at the outer layer, and the external connector comprises an endotracheal tube connector (63) or a ventilator multipurpose connector;

a gap exists between the outer wall of the distal inner-layer conical tube (614) and the inner wall of the distal outer-layer shell (615); the inner wall of the far-end outer shell (615) is connected with the external connector in a matched mode, and the outer wall of the far-end outer shell (615) is a handheld part; the outer shape of the distal end inner layer conical tube (614) is a circular truncated cone structure, the outer wall of the distal end inner layer conical tube is matched and connected with trachea cannula tube bodies (64) of multiple models, and the inner cavity channel is formed in the distal end inner layer conical tube (614).

12. The transit sealing system according to claim 8 or 9, wherein the connection between the connector body (611) and the pipe body protection sleeve (4) sleeved on the pipe body i (5) is a hot-melt fit connection, an adhesive fit connection, a welding connection, or a physical connection through a protection sleeve buckle (2), wherein the outer wall of the connector body (611) is provided with a buckle (616), one side of the protection sleeve buckle (62) is in fit connection with the buckle (616), and the other side is connected with the pipe body protection sleeve (4).