A secretion adsorption regulation system and method

Abstract

The present invention relates to a secretion adsorption and regulation system, wherein the device comprises a regulation component for adsorbing oral secretions and an insertion component for providing an adsorption position / area / guide for the regulation component, wherein the distal ends of the regulation component and the insertion component are connected based on a pipe sleeve and form a positionable adsorption chamber, so that the distal end of the regulation component can be in the same active position as the distal end of the insertion component, wherein, based on the source of oral secretions, the adsorption chamber at least comprises a first adsorption chamber arranged in the parotid gland, a second adsorption chamber arranged in the submandibular gland, a second adsorption chamber arranged in the sublingual gland and a fourth adsorption chamber arranged in the epiglottis, so that the adsorption chamber can provide a corresponding adsorption program at the primary position of the secretion based on the characteristics of the secretions at different positions.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a secretion adsorption and regulation system and method. Background Art

[0002] The self-defense mechanism of the respiratory system depends on the ciliated columnar epithelium and mucus-secreting goblet cells on the tracheal and bronchial mucosa. The rhythmic movement of ciliated cells from inside to outside drives the particles deposited on the mucosa to be discharged into the throat along with the mucus. When the mucus accumulates into sputum, it is discharged from the body through the cough reflex. Only when the mucociliary transport function is normal can the secretions of the distal airway be transported to the larger airway and then cleared through the cough reflex. However, for patients with artificial airways such as endotracheal intubation or endotracheal cannulae, the artificial airway ensures the patency of the airway and saves the lives of critically ill patients on the one hand, but on the other hand, it seriously damages the respiratory system's own ciliary-mucus defense mechanism and increases the occurrence of bacterial fixation and ventilator-associated pneumonia. For patients with open artificial airways, external suction is needed to avoid the harm caused by sputum accumulation.

[0003] At the same time, for patients who are in a coma or have difficulty swallowing, during long-term bed rest, the continued secretions in the mouth (saliva or sputum) will accumulate in the mouth or pharynx. If the secretions are not sucked away through external intervention, it is very easy to cause the patient to choke and cough.

[0004] The existing secretion adsorption operation is performed by medical staff. Based on the patient's condition, the medical staff assesses whether the patient needs to adsorb oral and tracheal secretions. After confirming the patient's needs, they send a suction tube into the airway, withdraw the tube 1 cm when encountering resistance, and start the negative pressure rotation to withdraw the tube to attract secretions containing sputum. However, for patients with artificial airways, repeated operations every day take up a lot of nurses' working time and increase the workload of medical staff. In addition, there will be technical differences due to differences in the qualifications of medical staff. As an invasive operation, improper operation can easily cause damage to patients. In the future, nursing will gradually become mechanized and intelligent. At present, it is impossible to accumulate a large amount of test data and operation data through manual operations, and it is difficult to play a role in the subsequent automated secretion adsorption care.

[0005] The suction tube of the sputum suction device disclosed in Chinese patents CN104703646A and CN103330981A is fixed at the lower part of the artificial airway and opened at the front part of the artificial airway. It cannot be moved and can only suck the sputum at the front part of the artificial airway, and cannot completely replace the suction operation. And the lack of design for cleaning the suction line increases the risk of respiratory tract infection. Moreover, the negative pressure mode of the above patents is to suction at a fixed time or judge whether suction is needed according to the airway pressure, which does not meet the requirements of suctioning according to the patient's needs proposed in the existing guidelines. The airway pressure is only one of the indications for suction and cannot reasonably indicate the need for suction.

[0006] At the same time, most patients who undergo endotracheal intubation and tracheotomy will produce secretions (saliva or sputum), which are produced for the following reasons:

[0007] 1. Caused by the disease itself, such as lung infection, pulmonary edema and other diseases.

[0008] 2. The artificial airway itself and sedation can weaken and eliminate the cough reflex and function, causing the accumulation of sputum. This is because the artificial airway has lost the ability to cough and expectorate.

[0009] 3. The insertion of an artificial airway into the trachea irritates the tracheal mucosa and causes increased secretions.

[0010] 4. The swallowing reflex cannot be completed autonomously and saliva cannot be swallowed correctly.

[0011] At present, the method of adsorbing secretions during endotracheal intubation and tracheotomy is usually to insert a tube for adsorbing secretions into the artificial airway after a certain period of time has passed and the secretions have accumulated in the trachea to aspirate and clear the secretions in the lungs that have reached the trachea and artificial airway.

[0012] For example, Chinese patent number CN200580031174.3 discloses a device for sucking sputum from the trachea, wherein a tracheal cannula is arranged in the trachea of ​​a human body, and the sputum is sucked out of the trachea of ​​the human body by using a suction tube, wherein the suction tube and the tracheal cannula are not an integral structure, and the end of the suction tube is easy to stimulate the inner wall of the trachea of ​​the human body, which is easy to cause harm to the patient. Most importantly, since the gas sucked out by the suction tube is not added to the ventilator, the ventilator will detect that the difference between the output gas and the input gas is not within a predetermined range, which will cause the ventilator to be in an alarm state all the time, which is very unfavorable to use.

[0013] The secretion adsorption devices and methods currently involved have the following disadvantages:

[0014] 1. The adsorption method involved in the prior art is highly irritating. The tube for adsorbing secretions touches the tracheal wall or the inside of the oral cavity, which will cause severe discomfort to the patient. Repeated adsorption of secretions will also cause damage to the oral mucosa and tracheal mucosa. It will cause multiple physical and mental harm to the patient and his family members. It will increase the patient's fear of sputum suction, which is not conducive to the patient's cooperation with treatment.

[0015] 2. Clinically, it is often necessary to collect sputum samples for testing and analysis of such patients. In the process of collecting sputum samples, sputum and external or oral saliva secretions often contaminate each other, causing contamination of sputum samples, which affects the accuracy of sputum test results.

[0016] Based on this, the present invention provides a secretion adsorption system that clarifies the secretion adsorption path based on the oral area division.

[0017] In addition, on the one hand, there are differences in understanding among those skilled in the art; on the other hand, the applicant studied a large number of documents and patents when making the present invention, but due to space limitations, not all details and contents are listed in detail. However, this does not mean that the present invention does not have the characteristics of these prior arts. On the contrary, the present invention already has all the characteristics of the prior art, and the applicant reserves the right to add relevant prior art to the background technology. Summary of the invention

[0018] The secretion adsorption adjustment system involved in the prior art relies more on the subjective behavioral judgment of medical staff to adjust and move the position of the adsorption tube. Due to the lack of multi-dimensional and multi-parameter data analysis, medical staff often need to rely on experience or the intraoral visual field image provided by the system to move the adsorption tube. However, experience belongs to a few people and requires time and cases to polish. This also causes some patients to have poor adsorption effects or even oral bleeding when they are operated by medical staff who are not experienced enough. The secretion adsorption adjustment system provided by the present invention can generate reasonable adsorption operations by accumulating a large amount of detection data and operation data, and the data can be used together in each operation. At the same time, based on the multi-position adsorption head set up by the system, the system can achieve refined processing of various parts of the patient's mouth, and can increase both the operation accuracy and the adsorption area accuracy.

[0019] In view of the deficiencies of the prior art, the present invention provides a secretion adsorption and regulation system, the device comprising a regulation component for adsorbing oral secretions and an insertion component for providing an adsorption position / area / guide for the regulation component. The distal ends of the regulation component and the insertion component are connected based on a pipe sleeve and form a positionable adsorption cavity, so that the distal end of the regulation component can be in the same active position as the distal end of the insertion component, wherein the adsorption cavity at least comprises a first adsorption head capable of adsorbing saliva produced by the parotid gland, submandibular gland and sublingual gland, and a second adsorption head disposed on the epiglottis capable of adsorbing mucus produced in the trachea, so that the adsorption head can use a corresponding adsorption program at the primary location of the secretion based on the characteristics of the secretion at different locations, wherein,

[0020] Based on the swallowing reflex degree of the patient, the first adsorption head and the second adsorption head generate corresponding adsorption programs in response to the generation of adsorbable secretions in corresponding areas of the patient's oral cavity monitored by the first adsorption head and the second adsorption head.

[0021] Beneficial effects of this technical solution:

[0022] (1) The device provided by the present invention divides the adsorption area into zones based on the source of the secretions, so that when the device is in the patient's mouth, the secretions in the area can be adsorbed in time. At the same time, since the oral cavity of a comatose or myasthenic patient is in a closed state for a long time, the oral space inside and outside the teeth is not connected. Therefore, dividing the area in the oral cavity into at least four zones can ensure that the secretions in any position can be adsorbed without adjusting the patient's oral state;

[0023] (2) The device provided by the present invention is provided with a guide rod capable of adjusting the displacement and direction of the adsorption tube within a small distance. On the one hand, it can prevent the pipeline in a negative pressure state from deviating in the oral cavity, and on the other hand, it can also provide specific adsorption path or adsorption position information for the pipeline for adsorbing secretions;

[0024] (3) Based on the state of the patient's swallowing muscles, selectively provide auxiliary adsorption assistance to certain areas of the patient. On the one hand, it can help patients with mild symptoms to exercise their oral muscles; on the other hand, reducing the adsorption area can also reduce the damage to the oral mucosa caused by the adsorbed secretions.

[0025] According to a preferred embodiment, the distal ends of the suction catheter and the cannula are provided with an open sleeve ring made of a flexible material with poor water absorption. The open sleeve ring can prevent the hard end of the pipe from colliding or scratching the patient's mucosal tissue when the suction catheter and the cannula enter the patient's trachea or oral cavity. Preferably, the flexible material with poor water absorption can be silicone.

[0026] According to a preferred embodiment, the secretions mentioned in the present invention refer to any liquid or viscous substance that may be produced by the patient's oral cavity, throat and trachea in a healthy or unhealthy state. Preferably, the secretions can refer to sputum, saliva or pus.

[0027] According to a preferred embodiment, the suction catheter and the cannula are provided with a connector for stabilizing them in the patient's mouth or nose. Preferably, the connector can be a disposable patch. The connector can also be a ring with multiple holes that can be sleeved with pipelines. The diameter of the ring hole in the ring corresponds to the diameter of the pipeline. The ring is connected to the patient's head, thereby achieving the purpose of fixing the pipeline.

[0028] According to a preferred embodiment, the detection component involved in the present invention can be a fluid density sensor. The detection component involved in the present invention can also be a humidity detection sensor. The detection component involved in the present invention can also be an infrared detection sensor based on infrared induction. The detection component involved in the present invention can also be an image detection element. The detection component involved in the present invention can be set at different locations based on the detection site and material.

[0029] According to a preferred embodiment, when the patient is in a state of mild swallowing reflex, the second adsorption head can adsorb saliva or other secretions collected in the pharynx, wherein the first adsorption head can evaluate the amount of saliva produced at its location to provide a basis for setting the liquid adsorption pressure of the second adsorption head.

[0030] Beneficial effects of this technical solution:

[0031] The swallowing action mainly includes three stages: ① The liquid / solid is moved to the back of the tongue due to the action of the cheek muscles and the tongue, and then the front of the back of the tongue is close to the hard palate, and the liquid / solid is pushed to the back of the soft palate and to the pharynx; ② When the clump of liquid / solid enters the throat through the soft palate, it stimulates the receptors in the soft palate, causing a series of muscle reflex contractions, resulting in the nasopharyngeal passage and the passage between the pharynx and the trachea being blocked, breathing apnea, and the upper opening of the esophagus, so that the liquid / solid is squeezed from the pharynx into the esophagus; ③ After the liquid / solid enters the esophagus, it causes esophageal peristalsis, pushing the liquid / solid into the stomach through the cardia.

[0032] The main problem for patients with mild swallowing reflex is that the soft palate and tongue cannot be coordinated when swallowing, which makes it easy for liquids / solids to enter the trachea and cause choking. The main function of saliva is to keep the mouth moist. It also contains antibacterial ingredients that can help regenerate the oral mucosa. Therefore, for the saliva produced by the sublingual gland, parotid gland and submandibular gland, it is only necessary to prevent the saliva from entering the patient's pharynx and being inhaled by the patient's trachea. This adsorption method can not only prevent the patient from choking, but also enable the saliva to play a role in the patient's mouth, thereby avoiding the problem of dry or easily damaged mouth.

[0033] According to a preferred embodiment, when the patient is in a moderate swallowing reflex state, the first adsorption head will start working when the amount of saliva in the oral cavity accumulates to α.

[0034] Beneficial effects of this technical solution:

[0035] For patients in a state of moderate swallowing reflex, saliva accumulates in their mouth and is directly adsorbed. The patient does not need to rely on the strength of the oral muscle groups to control the flow of saliva to the pharynx. This allows the saliva to moisten the mouth during the accumulation process, while avoiding the problem of excessive saliva accumulation flowing out of the patient's mouth or flowing into the patient's pharynx.

[0036] According to a preferred embodiment, when the patient is in a severe swallowing reflex state, the first adsorption head can be turned on and operated at a β frequency interval to cope with the saliva constantly produced in the patient's mouth.

[0037] Beneficial effects of this technical solution:

[0038] Since saliva production has a regular pattern, for patients in coma or severe myasthenia, saliva cannot be controlled by the oral muscles and flow in the mouth. Therefore, it is sufficient to clean the saliva in various areas of the patient regularly according to the pattern of saliva production.

[0039] According to a preferred embodiment, based on the source of oral secretions, the first adsorption head at least includes a first adsorption chamber disposed in the parotid gland capable of adsorbing secretions secreted from the parotid gland, a second adsorption chamber disposed in the submandibular gland capable of adsorbing secretions secreted from the submandibular gland, and a third adsorption chamber disposed in the sublingual gland capable of adsorbing secretions secreted from the sublingual gland, so that the adsorption chamber can provide a corresponding adsorption procedure at the original location of the secretion based on the characteristics of the secretion at different locations. Preferably, the first adsorption chamber, the second adsorption chamber, and the third adsorption chamber are disposed in the pipeline of the first adsorption head, and when the corresponding areas need to be adsorbed, the guide rod can provide the first adsorption chamber, the second adsorption chamber, and the third adsorption chamber with the position positioning of their moving end points.

[0040] According to a preferred embodiment, the adjustment assembly is configured as a hollow tube body, the hollow tube body includes a valve unit and a gripping portion, wherein the valve unit includes a hollow valve portion, a valve element, a stopper 1 and a stopper 2.

[0041] According to a preferred embodiment, the valve unit is arranged on the surface of the hollow valve portion, and the valve element moves between an open position and a closed position of the opening, wherein the stopper 1 is arranged at one end of the opening on the surface of the valve unit in a manner such that its long side is parallel to the axial direction of the hollow valve portion or to the axial direction of the hollow valve portion.

[0042] According to a preferred embodiment, the insertion assembly includes a cannula, a guide rod and a suction catheter.

[0043] According to a preferred embodiment, the insertion component is connected to the connecting part of the valve unit of the adjustment component through the end of the suction catheter that does not extend into the guide rod, so that the distal end of the adjustment component can reach the area where secretions need to be suctioned based on the adjustment of the insertion component.

[0044] The present invention provides a secretion adsorption and regulation method, comprising the following steps:

[0045] When the first adsorption chamber disposed in the parotid gland detects the presence of secretions in the parotid gland area, the first adsorption chamber adsorbs the secretions in the parotid gland area in a first procedure;

[0046] When the second adsorption chamber disposed in the submandibular gland detects the presence of secretions in the submandibular gland area, the second adsorption chamber adsorbs the secretions in the submandibular gland area in a second procedure;

[0047] When the third adsorption chamber disposed in the sublingual gland detects the presence of secretions in the sublingual gland area, the third adsorption chamber adsorbs the secretions in the sublingual gland area in a third procedure;

[0048] When the fourth adsorption chamber disposed on the epiglottis detects the presence of secretions in the epiglottis region, the fourth adsorption chamber adsorbs the secretions in the epiglottis region in a fourth procedure, wherein:

[0049] The first adsorption chamber arranged in the parotid gland, the second adsorption chamber arranged in the submandibular gland, the second adsorption chamber arranged in the sublingual gland and the fourth adsorption chamber arranged in the epiglottis can adsorb secretions individually or in random combination based on the detection results.

[0050] Based on the different indications of the patients, medical staff can perform separate adsorption operations on different areas of the patient's oral cavity and trachea. On the one hand, the system adsorption method provided by the present invention separates oral secretions and tracheal secretions, providing a more convenient operation for sampling; on the other hand, the adsorption system does not require excessive movement in the patient's trachea or oral cavity, which can effectively prevent the system from causing damage to the patient's mucosa when moving.

[0051] The present invention provides a device suitable for a secretion adsorption and regulation system.

[0052] The device comprises an adjusting component and an inserting component.

[0053] The regulating assembly is configured as a hollow tube body. The hollow tube body includes a valve unit and a gripping portion. The valve unit includes a hollow valve portion, a valve element, a stopper 1 and a stopper 2. Preferably, the hollow valve portion may have any suitable cross section and has a flat outer surface. The surface of the hollow valve portion is provided with an opening along the circumferential direction of the hollow valve portion. The valve element controls the opening and closing of the opening on the surface of the hollow valve portion in a sliding or rotating manner. The valve element is provided on the surface of the hollow valve portion, and the valve element moves between an open position and a closed position of the opening. Stopper 1 is provided at one end of the opening on the surface of the valve unit in a manner that its long side is parallel to the axial direction of the hollow valve portion or to the axial direction of the hollow valve portion. Stopper 2 is located at the proximal end of the valve unit, and stopper 2 is provided on the surface of the valve unit in a manner perpendicular to stopper 1. Stopper 1 and stopper 2 define the movement space of the valve element along the opening. The distal end of the valve unit is provided with a connecting portion for connecting the suction catheter. Preferably, the shape of the connecting portion is conical or stepped. The connecting portion at the distal end of the valve unit is connected to the suction catheter.

[0054] The beneficial effects of the technical solution are as follows: (1) the device can control the opening and closing of the opening by adjusting the valve element, and can conveniently and accurately adjust and automatically maintain the set negative pressure; (2) the device has a simple structure, is easy to operate and can be easily installed on the suction device.

[0055] The gripping part is arranged in a cylindrical shape. A connecting part for connecting a negative pressure pump is arranged at the proximal end of the gripping part, and the shape of the connecting part is conical or stepped. The connecting part at the proximal end of the gripping part can be connected to the negative pressure pump.

[0056] According to a preferred embodiment, the diameters of the gripping portion and the valve unit are equal, the gripping portion can be omitted, and the connecting portion at the proximal end of the gripping portion can be directly connected to the proximal end of the valve unit by screwing or snapping.

[0057] According to a preferred embodiment, the valve unit has connecting parts at both ends, and the connecting parts are conical or stepped in shape. The valve unit can be connected in series between the surgical suction catheter and the surgical negative pressure pump as a separate element.

[0058] Preferably, the valve element has a convex or grooved outer portion, which may or may not be recessed, to facilitate gripping by an operator while allowing the position of the valve element relative to the opening to be controlled by the operator's fingers.

[0059] The insertion assembly includes a cannula, a guide rod, and an aspiration catheter.

[0060] The sleeve is made of plastic or metal. The diameter of the sleeve is larger than the diameter of the guide rod. The proximal end of the sleeve is provided with a handle 1, and the distal end of the sleeve is provided with a seal shape or a funnel shape. The sleeve can move on the guide rod.

[0061] The guide rod is made of metal or plastic. Preferably, the guide rod may have a washer-shaped protrusion in the middle position. Preferably, the washer-shaped protrusion can move distally on the guide rod. Preferably, the washer-shaped protrusion is connected to a push rod, which is built into the guide rod and can move back and forth in the guide rod along the axial direction of the guide rod. The guide rod is detachably mounted in the inner cavity of the sleeve. A handle 1 is provided at the proximal end of the guide rod, and the guide rod moves along the axial direction of the sleeve or parallel to the axial direction of the sleeve. The distal end of the guide rod is blunted or rounded. Particularly preferably, the distal end of the guide rod is soft and can be bent and / or curved, and this structure can avoid causing trauma. The distal end portion of the guide rod entering the part to be treated can be adjusted and bent according to the internal structure of the cavity. Preferably, an endoscope can be used as a guide rod. The push rod moves and slides along the axial direction on the endoscope. Preferably, a gastroscope and a colonoscope can be used as the guide rod.

[0062] The beneficial effects of the present technical solution are as follows: the distal end of the guide rod is relatively soft and can be bent and / or curved, and can be adjusted and bent according to the natural direction of the cavity when entering the cavity, without causing damage to the interior of the cavity.

[0063] One end of the suction catheter extends into the guide rod and the movement of the suction catheter is regulated by the guide rod. The suction catheter is made of transparent and soft material.

[0064] The insertion assembly is connected to the connecting portion of the valve unit of the regulating assembly through the end of the suction catheter that does not extend into the guide rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] Figure 1 It is a schematic structural diagram of the negative pressure secretion adsorption device provided by the present invention;

[0066] Figure 2 It is a schematic structural diagram of the first adsorption head provided by the present invention.

[0067] Reference numerals list

[0068] 100: adjustment component; 110: valve unit; 120: gripping portion; 111: hollow valve portion; 112: valve element; 113: stopper 1; 114: stopper 2; 115: opening; 130: connecting portion; 200: insertion component; 210: sleeve; 220: guide rod; 230: suction catheter; 211: handle 1; 212: gasket plate; 221: handle 2; 300: negative pressure pump. DETAILED DESCRIPTION

[0069] The following is a detailed description with reference to the accompanying drawings.

[0070] The present invention provides a secretion adsorption and regulation system, the device comprising a regulation component 100 for adsorbing oral secretions and an insertion component 200 for providing an adsorption position / area / guide for the regulation component 100. The distal ends of the regulation component 100 and the insertion component 200 are connected based on a pipe sleeve and form a positionable adsorption cavity, so that the distal end of the regulation component 100 can be in the same active position as the distal end of the insertion component 200, wherein the adsorption cavity at least comprises a first adsorption head capable of adsorbing saliva produced by the parotid gland, submandibular gland and sublingual gland and a second adsorption head arranged on the epiglottis capable of adsorbing mucus produced in the trachea, so that the adsorption head can use a corresponding adsorption program based on the characteristics of secretions at different locations at the original location of the secretion, wherein, based on the swallowing reflex degree of the patient, the first adsorption head and the second adsorption head generate a corresponding adsorption program in response to the generation of adsorbable secretions in the corresponding area of ​​the patient's oral cavity monitored by them. The first adsorption head is arranged in the oral cavity or pharynx. The first adsorption head is arranged as a pipe comprising a plurality of adsorption cavities. A plurality of holes are arranged at the distal end of the pipe, such as Figure 2 As shown. The adsorption cavity can extend from the hole to adsorb different areas in the oral cavity. Preferably, the swallowing reflex of the patient is graded based on the swallowing dysfunction evaluation standard proposed by Kubota of Japan. The evaluation is divided into 4 muscles according to the degree of muscle weakening, and muscle 1 is normal muscle strength. Muscle 2 is set as mild swallowing dysfunction. Muscle 3 is set as moderate swallowing dysfunction. Muscle 4 is set as severe swallowing dysfunction.

[0071] According to a preferred embodiment, when the patient is in a mild swallowing reflex state, the second adsorption head can adsorb saliva or other secretions collected in the pharynx, wherein the first adsorption head can evaluate the amount of saliva produced at its location to provide a basis for setting the liquid adsorption pressure of the second adsorption head. Preferably, the first adsorption head detects that the parotid gland, sublingual gland and submandibular gland all produce approximately 3 ml of saliva, and the second adsorption head correspondingly generates a suction force that can adsorb 9 ml of liquid in about 1 second.

[0072] According to a preferred embodiment, when the patient is in a moderate swallowing reflex state, the first adsorption head will start working when the amount of saliva in the oral cavity accumulates to α. Preferably, α can be in the range of 1 to 10 ml.

[0073] According to a preferred embodiment, when the patient is in a severe swallowing reflex state, the first adsorption head can be turned on at a β frequency interval to cope with the saliva constantly produced in the patient's mouth. Preferably, β can be in the range of 5s / time to 15s / time.

[0074] In this application, "proximal end" refers to the end close to the operator, and "distal end" refers to the end far from the operator.

[0075] Example 1

[0076] The device includes an adjustment component 100 and an insertion component 200. The adjustment component 100 is configured as a hollow tube body made of suitable medical thermoplastics or other suitable materials. The hollow tube body includes a valve unit 110 and a gripping portion 120. The valve unit 110 includes a hollow valve portion 111, a valve element 112, a stopper 1 113 and a stopper 2 114. The surface of the hollow valve portion 111 is provided with an opening 115 along the circumferential direction of the hollow valve portion 111. Preferably, the shape of the opening 115 can be elongated or other suitable shapes. The size of the required negative pressure value is adjusted by controlling the exposed area of ​​the opening 115. The valve element 112 is arranged on the surface of the hollow valve portion 111 to control the opening and closing position of the opening 115. The valve element 112 moves along the circumferential direction of the hollow valve portion 111 to control the closing of the opening 115. Preferably, the movement mode of the valve element 112 can be sliding and rotating. The stopper 1 113 is arranged at one end of the opening 115 on the surface of the valve unit 110 in a manner that its long side is in the axial direction of the hollow valve portion 111 or is parallel to the axial direction of the hollow valve portion 111. The stopper 2 114 is located at the proximal end of the valve unit 110. The stopper 2 114 is arranged on the surface of the valve unit 110 in a manner perpendicular to the stopper 1 113. The stopper 1 113 and the stopper 2 114 define a space for the valve element 112 to move along the opening 115. When the opening 115 needs to be fully opened, the valve element 112 is slid to a position where the opening 115 is fully exposed, and the valve element 112 is away from the stopper 1 113. When the opening 115 needs to be fully closed, the valve element 112 is slid toward the stopper 1 113 until one end of the valve element 112 is in close contact with the stopper 1 113. At this time, the stopper 1 113, the stopper 2 114 and the valve element 112 completely cover the opening 115. Figure 1 shown.

[0077] Preferably, the valve unit 110 and the gripping portion 120 are connected in a detachable manner, and the connection between the valve unit 110 and the gripping portion 120 can be screwed or snapped.

[0078] Preferably, a connecting portion 130 connected to the suction catheter 230 is provided at the distal end of the valve unit 110 , and the connecting portion 130 at the distal end of the valve unit 110 is detachably connected to the suction catheter 230 .

[0079] The gripping portion 120 is provided in a cylindrical shape, and a connection portion 130 connected to the negative pressure pump 300 is provided at the proximal end of the gripping portion 120. Preferably, the gripping portion 120 and the connection portion 130 provided at the proximal end of the gripping portion 120 are detachably connected, and the connection method can be screwing or snapping. The connection portion 130 at the proximal end of the gripping portion 120 is detachably connected to the negative pressure pump 300. The gripping portion 120 is detachably connected to the valve unit 110. Preferably, the connection method of the gripping portion 120 and the valve unit 110 is screwing or snapping.

[0080] According to a preferred embodiment, the diameter of the gripping portion 120 is equal to that of the hollow valve portion 111, and the gripping portion 120 can be omitted. When the gripping portion 120 is removed, the connecting portion 130 at the proximal end of the gripping portion 120 can be connected to one end of the valve unit 110 by screwing or snapping. The valve unit 110 without the gripping portion 120 can be connected in series between the surgical suction catheter 230 and the surgical negative pressure pump 300 as a single element.

[0081] Preferably, the curvature of the grip 120 can be adjusted so that the grip 120 is more suitable for the operator's hand. The proximal end of the grip 120 is provided with a connection portion 130 connected to the negative pressure pump 300, and the distal end of the valve unit 110 is provided with a connection portion 130 connected to the suction catheter 230. Preferably, the connection portion 130 can be trapezoidal or conical, which facilitates the connection and removal of the connection portion 130 with the suction catheter 230 and the negative pressure pump 300.

[0082] The insertion assembly 200 includes a cannula 210, a guide rod 220, and a suction catheter 230. The cannula 210 is made of plastic or metal. The diameter of the cannula 210 is larger than the diameter of the guide rod 220, so that the guide rod 220 can be built into the cannula 210. The proximal end of the cannula 210 is provided with a handle 1211, and the distal end of the cannula 210 is set in a stamp shape or a funnel shape. The cannula 210 can move on the guide rod 220.

[0083] A handle 1211 is provided at the proximal end of the cannula 210. The operator controls the handle 1211 to stabilize the washer plate 212 at the distal end of the cannula 210 at the entrance of the area to be treated. The guide rod 220 is detachably installed in the inner cavity of the cannula 210. Preferably, the guide rod 220 may have a washer-shaped protrusion at the middle position. Preferably, the washer-shaped protrusion may move toward the distal end on the guide rod 220. The washer-shaped protrusion is connected to a push rod, which is built into the guide rod 220 and can move back and forth in the guide rod 220 along the axial direction of the guide rod 220. The proximal end of the guide rod 220 is provided with a handle 2221. The operator controls the handle 2221, and the guide rod 220 moves along the axial direction of the sleeve 210 or parallel to the axial direction of the sleeve 210. The distal end of the guide rod 220 is blunted or rounded. The distal end of the guide rod 220 is relatively soft and can be bent and / or curved. This structure can prevent the interior of the cavity from being traumatized. The distal end of the guide rod 220 that enters the part to be treated can be adjusted and bent according to the internal structure of the cavity. One end of the suction catheter 230 extends into the guide rod 220 and the movement of the suction catheter 230 is regulated by the guide rod 220. The suction catheter 230 is made of a transparent and soft material. The suction catheter 230 is set as a transparent tube, which is convenient for doctors to observe the color and state of the liquid sucked out in time. Since the suction catheter 230 is made of soft material, it is not easy to control the direction after entering the cavity. Therefore, the suction catheter 230 is installed inside the guide rod 220 and reaches the part to be treated through the guide rod 220.

[0084] During treatment, the operator controls the handle 1 211 to stabilize the sleeve 210 at the entrance of the cavity to be entered. At this time, the gasket plate 212 is in close contact with the entrance of the cavity. The gasket plate 212 increases the contact area between the sleeve 210 and the entrance of the cavity, making it difficult for the sleeve 210 to slide relative to each other. The guide rod 220 with the suction catheter 230 is inserted into the sleeve 210. The operator controls the handle 2 221 to make the guide rod 220 probe into the cavity. The distal end of the guide rod 220 can be adjusted and bent according to the structure inside the cavity. The suction catheter 230 is inside the guide rod 220, so the suction catheter 230 and the guide rod 220 have the same movement trajectory. At the same time, since the distal end of the guide rod 220 has been blunted or rounded, and the distal end of the guide rod 220 is relatively soft and can be bent and / or curved, the inside of the cavity will not be damaged.

[0085] When the guide rod 220 reaches the part to be treated, the guide rod 220 is pulled out and the sleeve 210 is removed, and the suction catheter 230 does not move but stays in the original position of the cavity. The other end of the suction catheter 230 is connected to the connection part 130 at the distal end of the valve unit 110, and the connection part 130 at the proximal end of the valve unit 110 is connected to the negative pressure pump 300, and the negative pressure pump 300 is connected to at least one secretion receiving container in a manner that can deliver fluid.

[0086] Preferably, the negative pressure applied by the negative pressure pump 300 may be continuous or intermittent.

[0087] Example 2

[0088] The opening 115 on the surface of the hollow valve part 111 is provided with depressions arranged at intervals along the circumference of the hollow valve part 111 on both sides. At the same time, the inner surface of the valve element 112 is provided with protrusions corresponding to the depressions on both sides of the opening 115. The protrusions and the depressions can be engaged with each other, which is conducive to keeping the valve element 112 in the desired position. For example, if the operator wants to reduce the negative pressure in the pipeline by half, only 1 / 2 of the opening 115 needs to be exposed. The operator can slide the valve element 112 to 1 / 2 of the opening 115, so that the protrusions on the inner surface of the valve element 112 are engaged with the depressions on both sides of the opening 115. The valve element 112 can be fixed there and will not change its position by itself, causing the air pressure in the pipeline to change.

[0089] A depression is provided at the position where the surface of the hollow valve portion 111 meets the stopper 1113, and a protrusion is provided on the inner surface of the valve element 112 near the end of the stopper 1113. The depression on the surface of the hollow valve portion 111 is engaged with the protrusion at the end of the inner surface of the valve element 112, thereby preventing suction loss caused by the opening 115 being not closed tightly during operation of the device. Preferably, the depression provided at the position where the surface of the hollow valve portion 111 meets the stopper 1113 is a conical depression, and the protrusion provided on the inner surface of the valve element 112 near the end of the stopper 1113 is complementary to the conical depression. When the valve element 112 is moved to the closed position, the protrusion complementary to the conical depression provided on the inner surface of the valve element 112 near the end of the stopper 1113 is engaged with the conical depression to form a tight fit to avoid suction loss.

[0090] It should be noted that the above-mentioned specific embodiments are exemplary, and those skilled in the art can come up with various solutions inspired by the disclosure of the present invention, and these solutions also belong to the disclosure scope of the present invention and fall within the protection scope of the present invention. Those skilled in the art should understand that the present invention specification and its drawings are illustrative and do not constitute a limitation of the claims. The scope of protection of the present invention is defined by the claims and their equivalents. The present invention specification contains multiple inventive concepts, such as "preferably", "according to a preferred embodiment" or "optionally", all of which indicate that the corresponding paragraph discloses an independent concept, and the applicant reserves the right to file a divisional application based on each inventive concept. Throughout the text, the feature guided by "preferably" is only an optional method and should not be understood as a must-have setting. Therefore, the applicant reserves the right to abandon or delete the relevant preferred features at any time.

Claims

1. A secretion adsorption and regulation system, the system comprising a regulation component (100) for adsorbing oral secretions and an insertion component (200) for providing an adsorption position / area / guide for the regulation component (100), characterized in that: The distal ends of the regulating component (100) and the insertion component (200) are sleeved based on the sleeve (210) to form a positionable adsorption chamber, so that the distal end of the regulating component (100) can be in the same active position as the distal end of the insertion component (200), wherein, based on the source of oral secretions, the adsorption chamber at least comprises a first adsorption head capable of adsorbing saliva produced by the parotid gland, submandibular gland and sublingual gland, and a second adsorption head arranged on the epiglottis capable of adsorbing mucus produced in the trachea, so that the adsorption head can use a corresponding adsorption program at the original position of the secretion based on the characteristics of the secretion at different positions, wherein, Based on the swallowing reflex degree of the patient, the first adsorption head and the second adsorption head generate corresponding adsorption programs in response to the generation of adsorbable secretions in corresponding areas of the patient's oral cavity monitored by the first adsorption head and the second adsorption head; When the patient is in a mild swallowing reflex state, the second adsorption head can adsorb saliva or other secretions collected in the pharynx, wherein the first adsorption head can evaluate the amount of saliva produced at its location to provide a basis for setting the liquid adsorption pressure of the second adsorption head; The first adsorption head at least comprises a first adsorption chamber disposed in the parotid gland capable of adsorbing secretions secreted from the parotid gland, a second adsorption chamber disposed in the submandibular gland capable of adsorbing secretions secreted from the submandibular gland, and a third adsorption chamber disposed in the sublingual gland capable of adsorbing secretions secreted from the sublingual gland, so that the adsorption chambers can provide corresponding adsorption procedures at the primary location of the secretions based on the characteristics of the secretions at different locations; The insertion component (200) is connected to the connecting portion (130) of the valve unit (110) of the adjustment component (100) via the end of the suction catheter (230) that does not extend into the guide rod (220), so that the distal end of the adjustment component (100) can reach the area where secretions need to be suctioned based on the adjustment of the insertion component (200).

2. The system according to claim 1, characterized in that When the patient is in a moderate swallowing reflex state, the first adsorption head will start working when the amount of saliva in the oral cavity accumulates to α.

3. The system according to claim 1, characterized in that When the patient is in a state of severe swallowing reflex, the first adsorption head can be turned on and operated at a β frequency interval to cope with the saliva constantly produced in the patient's mouth.

4. The system according to claim 1, characterized in that The regulating assembly (100) is configured as a hollow tube body, the hollow tube body comprising a valve unit (110) and a gripping portion (120), wherein the valve unit (110) comprises a hollow valve portion (111), a valve element (112), a stopper 1 (113) and a stopper 2 (114).

5. The system according to claim 4, characterized in that The valve unit (110) is arranged on the surface of the hollow valve portion (111), and the valve element (112) moves between an open position and a closed position of the opening (115), wherein the stopper 1 (113) is arranged at one end of the opening (115) on the surface of the valve unit (110) in a manner such that its long side is parallel to the axial direction of the hollow valve portion (111) or to the axial direction of the hollow valve portion (111).

6. The system according to claim 1, characterized in that The insertion assembly (200) includes a cannula (210), a guide rod (220) and a suction catheter (230).

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