Sputum collecting device for thoracic surgery nursing

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to a sputum collection device for thoracic surgery nursing, which comprises a machine body, and a box cover is arranged at the upper end of the machine body; the sampling part comprises a suction tube, and a sealing plug and a liquid outlet are arranged in the suction tube; the sampling part comprises a sampling tube, the sampling tube is communicated with a sputum suction tube, and the sputum suction tube is provided with a contact rod and a pull rope; the regulation and control part comprises a fixed rod, a sliding block and a movable ring are arranged on the outer ring of the fixed rod, and a clamping block is arranged in an inner cavity of the movable ring; and the positioning part comprises a rotating ring, and an inner ring of the rotating ring is connected with an insertion block. According to the sputum suction device, sputum samples can be sampled in the sputum suction process, the contact rod can be controlled to be unfolded outwards during sputum collection, the situation that a suction part is directly attached to the inner wall of the respiratory tract and hurts a patient is avoided, the outward extending length of the contact rod can be controlled, and the situation that suction of sputum attached to the wall of the respiratory tract is affected due to the fact that the width of a gap is fixed is avoided.

Description

Technical Field

[0001] This invention belongs to the field of medical device technology, specifically relating to a sputum collection device for thoracic surgery nursing. Background Technology

[0002] The respiratory tract is the passageway through which airflow passes during respiration, supporting normal physiological metabolism. Medically, the nose, pharynx, and larynx are collectively referred to as the upper respiratory tract. When patients experience difficulty expectorating sputum due to surgery or other causes, excessive sputum and pus can obstruct the airway. In such cases, suction devices, as essential medical equipment, play a crucial role in clearing sputum from the patient's airway to ensure airway patency and prevent suffocation and infection caused by sputum accumulation. However, traditional suction devices generally consist of basic components such as the suction device itself, control unit, and sputum collection container. Their function is relatively simple, and some problems still exist in practical clinical applications.

[0003] First, because the airway diameter is usually narrow, the suction port on the suction tube can easily stick to the inner wall of the patient's airway during suctioning, causing injury. For example, Chinese patent application CN120392176A proposes a sputum suction device for tuberculosis. Although this patent uses a flexible contact to separate the suction port from the inner wall of the patient's airway, the thickness of the flexible contact is fixed during use. As a result, it cannot effectively suction sputum attached to the inner wall of the airway, leading to poor suctioning effect. Furthermore, the flexible contact cannot be retracted during use, and the friction of multiple flexible contacts can easily aggravate the patient's discomfort.

[0004] Secondly, sputum samples are also important for detecting treatment effects and causes of disease. However, current technologies for collecting sputum samples usually require pausing the suction process before turning on the suction device to collect the sample. This is not only inefficient, but also very easy to cause pathogens to leak out. Summary of the Invention

[0005] The purpose of this invention is to provide a sputum collection device for thoracic surgery nursing, which can collect sputum samples during suctioning and can control the outward extension of the contact rod during sputum collection to avoid the suction part directly adhering to the inner wall of the respiratory tract and causing harm to the patient. It can also control the length of the outward extension of the contact rod to avoid a fixed gap width, which would affect the suction of sputum adhering to the respiratory tract wall.

[0006] The specific technical solution adopted by this invention is as follows: A sputum collection device for thoracic surgery nursing includes: The main body has a cover at the top. The sampling section includes a pipette with a sealing plug inside. The lower end of the pipette has a drain outlet, and the sealing plug is located between the inlet and the drain outlet of the pipette. The sampling part comprises a sampling tube, which is communicated at the upper left end of the body, and the outer end of the sampling tube is communicated with a sputum suction tube, three groups of contact rods are arranged on the sputum suction tube, and the inner cavities of the three groups of contact rods are all provided with a pull rope; The regulating part comprises a fixed rod, which is arranged at the outer circle of the sampling tube, and the outer circle of the fixed rod is provided with a sliding block, the bottom end of the pull rope is fixedly connected with the sliding block, the outer circle of the fixed rod is provided with a moving ring, the inner cavity of the moving ring is provided with a clamping block, and the clamping block is arranged at the outer edge of the sliding block; The positioning part comprises a rotating ring, which is arranged at the outer circle of the moving ring, and the inner circle of the rotating ring is fixedly connected with a plug; The moving ring slides along the fixed rod, drives the clamping block and the sliding block to move, the pull rope pulls the contact rod to extend outward, the clamping block moves along the inner cavity of the moving ring and is separated from the sliding block, and part of the contact rod is reset.

[0007] In a preferred scheme, the upper end of the body is hinged with the box cover through a hinge, the front lower end of the box cover is fixedly connected with a buckle, the rear side of the buckle is clamped on the front upper end of the body, the upper right side of the box cover is communicated with a negative pressure tube, and the upper left side of the box cover is provided with a feeding port.

[0008] In a preferred scheme, the left lower end of the body is provided with a cavity, the suction tube is fixedly connected to the middle part of the cavity, and the sealing plug is slidingly connected to the middle part of the inner cavity of the suction tube; the right end inlet of the suction tube extends into the middle part of the inner cavity of the body, the right end middle part of the sealing plug is fixedly connected with an elastic rope, the right end of the elastic rope extends into the inner cavity of the body and is fixedly connected with a sealing ball, the sealing ball is placed at the bottom of the inner cavity of the body, the lower end of the suction tube is provided with a liquid discharge port, and the outlet of the liquid discharge port is arranged in the inner cavity of the left cavity of the body.

[0009] In a preferred scheme, the sampling part further comprises a receiving cavity, which is arranged at the right side of the inner cavity of the body, and a negative pressure detector is fixedly installed in the inner cavity of the receiving cavity, the probe of the negative pressure detector extends into the inner cavity of the body, and a storage battery is also placed in the inner cavity of the receiving cavity; the left upper end of the suction tube is provided with a flushing port, and the lower end outlet of the flushing port is located in the middle part of the inner cavity of the suction tube.

[0010] In a preferred scheme, the sampling tube is fixedly connected to the left upper end of the body and communicated with the feeding port, the left end of the sampling tube is communicated with the sputum suction tube, and the sampling part further comprises four groups of suction ports, which are respectively arranged at the left end and the outer circle of the sputum suction tube, one group is arranged at the left end, and three groups are arranged at the outer circle, and the three groups of suction ports arranged at the outer circle are arranged in the middle part of the gap between the three groups of contact rods.

[0011] In a preferred scheme, three groups of empty slots are formed in the outer ring of the sputum suction tube, three groups of contact rods are respectively rotationally connected in the three groups of empty slots, the sampling part further comprises a torsional spring, the torsional spring is installed on the outer ring of the rotation shaft at the two ends of the contact rod, a pull block is slidably connected in the inner cavity of the contact rod, a spring a is fixedly connected at the right end of the pull block, the right end of the spring a is fixedly connected to the right side of the inner cavity of the contact rod, a pull rope is fixedly connected to the right side of the middle part of the pull block, and the right end of the pull rope extends through the contact rod and the sputum suction tube and extends into the inner cavity of the sampling tube.

[0012] In a preferred scheme, the fixed rod is fixedly connected to the lower end of the sampling tube, and the fixed rod is fixedly connected to the upper end of the left side of the box cover, three groups of sliding grooves are formed in the outer ring of the fixed rod, three groups of sliding blocks are slidably connected in the three groups of sliding grooves, and the left ends of the three groups of sliding blocks are respectively fixedly connected to the left ends of the three groups of pull ropes, the regulating part further comprises three groups of limiting strips, the three groups of limiting strips are fixedly connected to the outer ring of the fixed rod and are evenly distributed, and the moving ring is slidably connected to the outer ring of the three groups of limiting strips.

[0013] In a preferred scheme, three groups of through grooves are evenly formed in the outer ring of the moving ring, and a clamping block is slidably connected in each through groove, the clamping block is located above the sliding block and movably sleeved on the outer edge of the sliding block, a spring b is fixedly connected to the side of the clamping block advancing in the clockwise direction, the other end of the spring b is fixedly connected to the inner cavity of the through groove of the outer ring of the moving ring, and a pull plate is fixedly connected to the upper end of the clamping block, and the pull plate is located on the outer ring of the moving ring.

[0014] In a preferred scheme, an annular groove is formed in the left side of the outer ring of the moving ring, and a rotating ring is slidably connected in the annular groove, three groups of protrusions are fixedly connected to the inner ring of the rotating ring, and the three groups of protrusions are slidably connected to the left side of the outer ring of the moving ring, the positioning part further comprises three groups of springs c, the three groups of springs c are respectively fixedly connected to the side of the three groups of protrusions advancing in the counterclockwise direction, and the other end of the three groups of springs c is fixedly connected to the inner cavity of the moving ring.

[0015] In a preferred scheme, the positioning part further comprises an insertion block, the insertion block is fixedly connected to the middle part of the inner ring of the rotating ring, and the lower end of the insertion block penetrates the moving ring, a plurality of insertion grooves are formed in the outer ring of the limiting strip, and the part of the insertion block extending out of the moving ring is movably inserted in the insertion groove.

[0016] The technical effects obtained by the application are as follows: The sampling part can sample the sputum sample during the sputum suction process, avoids frequent switching to affect the sputum suction operation, and can sample the sputum sample during the sputum suction process. The sampling part and the regulating part of the application can control the contact rod to expand outward when collecting sputum, so as to avoid the suction part directly adhering to the inner wall of the respiratory tract and causing harm to the patient; when collecting sputum, the moving ring moves along the fixed rod, drives the clamping block and the sliding block to move, makes the pull rope pull the contact rod to rotate outward and extend, contacts the respiratory tract wall of the patient, makes the sputum suction tube form a gap with the respiratory tract wall, avoids the sputum suction tube directly contacting the respiratory tract wall and causing harm to the patient, and simultaneously, in order to facilitate control and sputum suction, different positions of the clamping block and the sliding block can be selected according to requirements, so that the contact rod at the corresponding position is retracted into the sputum suction tube, and diversified operation is realized. The positioning part of the application can control the length of the contact rod extending outward according to the position of sputum, so as to avoid the fixed gap width affecting the suction of sputum adhering to the respiratory tract wall; when regulating the position of the moving ring, the rotating ring is locked to the moving ring, then the moving ring is moved to different positions, the force of the pull rope and the length of the contact rod extending outward are increased according to the movement process of the moving ring, and when the moving ring reaches the appropriate position, the rotating ring is loosened, the inserting block is inserted into the corresponding position of the fixed rod to realize position fixation, so that the length of the contact rod extending outward can be adjusted according to requirements, and the suction operation of sputum adhering to the respiratory tract wall is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the whole application; Figure 2 is a schematic sectional view of the whole application; Figure 3 is a schematic structural diagram of the sampling part of the application; Figure 4 is a sampling state diagram of the sampling part of the application; Figure 5 is a schematic structural diagram of the sampling part of the application; Figure 6 is a schematic sectional view of the sputum suction tube of the application; Figure 7 is a schematic sectional view of the contact rod of the application; Figure 8 is an opening effect diagram of the contact rod of the application; Figure 9 is a position diagram of the pull rope and the sliding block of the application; Figure 10 is a position diagram of the regulating part of the application; Figure 11 is a schematic structural diagram of the regulating part of the application; Figure 12 is a position diagram of the clamping block and the sliding block of the application; Figure 13 is a schematic sectional view of the regulating part of the application; Figure 14 is a cross-sectional view of the moving ring in the present application; Figure 15 is a split effect view of the moving ring and the rotating ring in the present application.

[0018] In the drawings, the components represented by the respective reference numerals are listed as follows: 10, body; 11, box cover; 12, buckle; 13, negative pressure pipe; 14, feeding port; 20, sampling part; 21, suction pipe; 22, sealing plug; 23, elastic rope; 24, sealing ball; 25, liquid discharge port; 26, storage cavity; 27, negative pressure detector; 28, battery; 29, flushing port; 30, sampling part; 31, sampling pipe; 32, sputum suction tube; 33, suction port; 34, contact rod; 35, torsional spring; 36, pull block; 37, spring a; 38, pull rope; 40, regulating part; 41, fixed rod; 42, sliding block; 43, limiting strip; 44, moving ring; 45, clamping block; 46, spring b; 47, pull plate; 50, positioning part; 51, rotating ring; 52, spring c; 53, insertion block; 54, insertion slot. DETAILED DESCRIPTION

[0019] In order to make the above-mentioned objectives, features and advantages of the present application more apparent and comprehensible, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0020] In the following description, a large number of specific details are set forth in order to facilitate a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0021] Secondly, "one embodiment" or "embodiment" referred to herein means that a specific feature, structure or characteristic can be included in at least one implementation of the present application. "In a preferred embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an embodiment that is separate or selectively excluded from other embodiments.

[0022] Thirdly, the present application is described in detail in conjunction with the schematic diagram, and in the detailed description of the embodiments of the present application, the cross-sectional view of the device structure is partially enlarged without the general proportion for the convenience of description, and the schematic diagram is only an example, which should not limit the scope of protection of the present application herein. In addition, three-dimensional spatial dimensions including length, width and depth should be included in actual manufacture.

[0023] Please refer to the accompanying Figure 1 ,Figures 4 to 6 , Figures 9 to 13 As shown, this embodiment provides a sputum collection device for thoracic surgery nursing, comprising: The body 10 has a cover 11 at its upper end; The sampling unit 20 includes a pipette 21, a sealing plug 22 is provided inside the pipette 21, and a drain outlet 25 is provided at the lower end of the pipette 21. The sealing plug 22 is located between the inlet of the pipette 21 and the drain outlet 25. The sampling unit 30 includes a sampling tube 31, which is connected to the upper left side of the body 10. The outer end of the sampling tube 31 is connected to a suction tube 32. The suction tube 32 is provided with three sets of contact rods 34, and each of the three sets of contact rods 34 has a pull rope 38 in its inner cavity. The control unit 40 includes a fixed rod 41, which is disposed on the outer ring of the sampling tube 31. A slider 42 is disposed on the outer ring of the fixed rod 41. The slider 42 is fixedly connected to the bottom end of the pull rope 38. A moving ring 44 is disposed on the outer ring of the fixed rod 41. A locking block 45 is disposed in the inner cavity of the moving ring 44. The locking block 45 is disposed on the outer edge of the slider 42. The positioning part 50 includes a rotating ring 51, which is disposed on the outer ring of the moving ring 44, and the inner ring of the rotating ring 51 is fixedly connected to the insert block 53. The movable ring 44 slides along the fixed rod 41, causing the locking block 45 and the slider 42 to move, so that the pull rope 38 pulls the contact rod 34 to extend outward, and the locking block 45 moves along the inner cavity of the movable ring 44 to disengage from the slider 42, so that part of the contact rod 34 is reset.

[0024] It should be noted that a sampling tray is placed below the drain port 25 on the body 10 to facilitate sampling operations. The pull cord 38 is made of medical-grade nylon, ensuring its wear resistance and strength.

[0025] In this embodiment, the sampling tube 31 and suction tube 32 are placed in the patient's airway. The machine body 10 is then connected to a negative pressure device for negative pressure suction. Sputum is collected using the suction tube 32. If the patient's airway is fragile, rotating the rotating ring 51 disengages the insertion block 53 from the fixed rod 41, releasing the lock on the moving ring 44. Then, the moving ring 44 is pulled down to move along the fixed rod 41. At this time, the moving ring 44 moves the locking block 45 and the slider 42, pulling the pull rope 38 to rotate and extend the contact rod 34 outwards. As the moving ring 44 moves further, the extension length of the contact rod 34 also increases accordingly until the moving ring 44 reaches the appropriate position. At this point, the rotating ring 51 is released, allowing the insertion block 53 to re-insert into the fixed rod 41 for fixation, thus achieving the extension of the contact rod 34. With the length fixed, if it is necessary to control the retraction of the contact rod 34 on one side, the rotating block 45 is used to disengage it from the slider 42, thereby releasing the limit on the slider 42 and allowing the slider 42 to quickly reset, which in turn resets the contact rod 34 at the corresponding position, facilitating the operation of the device. After sputum is aspirated, it will enter the body 10 for collection through the sampling tube 31. If it is necessary to quickly obtain sputum samples, the container for placing the sample can be placed below the drain port 25, and then the sealing plug 22 is pulled outward to allow the sputum sample to enter the suction tube 21. Continue to move the sealing plug 22 to move it above the drain port 25, and at the same time, the sampling part 20 closes the suction tube 21, changing the connection between the suction tube 21 and the inside of the body 10 to the outside of the body 10. At this time, the sputum sample will be discharged outward through the drain port 25, realizing rapid sample collection.

[0026] Secondly, please refer to it again. Figures 1 to 3 The upper end of the machine body 10 is hinged to the box cover 11. A buckle 12 is fixedly connected to the lower front end of the box cover 11. The rear side of the buckle 12 is snapped onto the upper front end of the machine body 10. A negative pressure pipe 13 is connected to the upper right side of the box cover 11. A feed port 14 is opened on the upper left side of the box cover 11.

[0027] It should be noted that a sealing strip is provided at the part of the box cover 11 that contacts the machine body 10 to ensure airtightness and negative pressure effect; The front of the body 10 is provided with a snap-fit ​​component that is compatible with the buckle 12 to ensure the stability of the buckle 12 connection (not shown in the figure, and this is a common technical structure in the prior art, so it will not be described in detail). Here, the inner cavity of the body 10 should be filled with diluent (such as physiological saline or purified water) during use to facilitate subsequent sampling and cleaning; To ensure the normal operation of the device, before operation, the negative pressure pipe 13 should be connected to an external negative pressure device to ensure that a negative pressure environment can be formed inside the machine body 10.

[0028] In this embodiment, during use, the negative pressure pipe 13 is connected to an external negative pressure device to create negative pressure inside the machine body 10 for sputum suction. If it is necessary to clean and maintain the machine body 10, the latch 12 can be opened to open the cover 11, thereby allowing the inside of the machine body 10 to be cleaned.

[0029] Secondly, please refer to it again. Figures 3 to 4 A cavity is provided at the lower left side of the body 10, and a straw 21 is fixedly connected to the middle of the cavity. A sealing plug 22 is slidably connected to the middle of the inner cavity of the straw 21. The inlet of the right end of the straw 21 extends into the middle of the inner cavity of the body 10. An elastic rope 23 is fixedly connected to the middle of the right end of the sealing plug 22. A sealing ball 24 is fixedly connected to the right end of the elastic rope 23 extending into the inner cavity of the body 10. The sealing ball 24 is placed at the bottom of the inner cavity of the body 10. A drain port 25 is provided at the lower end of the straw 21, and the outlet of the drain port 25 is located in the inner cavity of the left side cavity of the body 10. The sampling unit 20 also includes a storage cavity 26, which is located on the right side of the inner cavity of the body 10. A negative pressure detector 27 is fixedly installed in the inner cavity of the storage cavity 26, and the probe of the negative pressure detector 27 extends into the inner cavity of the body 10. A battery 28 is also placed in the inner cavity of the storage cavity 26. A rinsing port 29 is provided at the upper left end of the straw 21, and the lower end outlet of the rinsing port 29 is located in the middle of the inner cavity of the straw 21.

[0030] It should be noted that a sealing gasket is provided at the right end of the sealing plug 22, and the outer edge of the sealing gasket is in contact with the inner wall of the straw 21. The diameter of the sealing ball 24 should be larger than the inlet diameter of the straw 21, and the outer ring of the sealing ball 24 is provided with a medical-grade rubber (or medical silicone) gasket to improve the sealing performance, so as to avoid airtightness problems affecting the negative pressure effect. The length of the elastic cord 23 is less than the distance from the inlet of the straw 21 to the outlet of the drain 25. This is intended to make the sealing plug 22 first pull the sealing ball 24 through the elastic cord 23 to block and seal the straw 21, and then continue to move to open the drain 25, so that the liquid in the straw 21 will be discharged out through the drain 25 to complete the sampling process. The elastic cord 23 is made of a high-elasticity material, and the specific material is medical grade (such as rubber). It is designed so that even when the sealing ball 24 blocks the entrance of the straw 21, the elastic cord 23 can still be stretched, so that the sealing plug 22 can move to the drain port 25. A handle is provided at the outer end of the sealing plug 22 to facilitate the retraction of the sealing plug 22; The storage cavity 26 can hold components or items with different functions (such as temperature detection, liquid level detection, negative pressure regulation, and emergency items) as needed. In this embodiment, only the negative pressure detector 27 and the battery 28 are provided for reference. The specific items placed or installed can be adjusted according to actual needs to improve the multifunctionality of the device. A rubber stopper is movably inserted at the inlet of the rinsing port 29. Under normal conditions, the rubber stopper seals the inner cavity of the pipette 21, ensuring negative pressure inside the pipette 21 for sample aspiration. After sample collection, before resetting, the rubber stopper can be opened, and a high-pressure rinsing component can be connected to the rinsing port 29. Cleaning liquid is then flushed into the pipette 21 through the rinsing port 29 to prevent residual samples from mixing with new samples inside the machine 10, thus avoiding sample confusion (multiple sample collections within a short period do not require cleaning). Here, the straw 21 is detachably installed on the lower left side of the body 10, and sealing strips are provided at the parts of the straw 21 that contact the body 10. This allows the straw 21 to be completely removed for cleaning after suctioning, enabling thorough cleaning of the inside of the straw 21, the elastic cord 23, the sealing plug 22, and the sealing ball 24, preventing sample confusion and ensuring sampling accuracy. To facilitate cleaning the inside of the straw 21, a through hole is provided on the upper left side, into which a rubber plug with a vent hole (such as...) is inserted. Figure 4 (As shown), so as to adjust the air pressure inside the straw 21, so that the sealing plug 22 can move freely, and also to facilitate the thorough cleaning of the inside of the straw 21 later.

[0031] In this embodiment, when sputum samples need to be collected, pulling the sealing plug 22 draws liquid from the body 10 into the suction tube 21. Simultaneously, the sealing plug 22 pulls the elastic cord 23, causing the sealing ball 24 to contact and seal the entrance of the suction tube 21. At this point, the inner cavity of the suction tube 21 is isolated from the inner cavity of the body 10. As the sealing plug 22 is continuously pulled outward, moving to the left side of the drainage port 25, the suction tube 21 completely switches from being connected to the inside of the body 10 to being connected to the outside. The liquid in the suction tube 21 can then be discharged through the drainage port 25, completing the sputum sampling process. The negative pressure detector 27 monitors the negative pressure state inside the body 10 in real time, ensuring the stable operation of the sputum suction procedure. The battery 28 provides power to the device, ensuring the normal operation of all components.

[0032] Secondly, please refer to it again. Figures 4 to 9 The sampling tube 31 is fixedly connected to the upper left side of the body 10 and communicates with the feed inlet 14. The left end of the sampling tube 31 is connected to the suction tube 32. The sampling part 30 also includes four suction ports 33. The four suction ports 33 are respectively opened at the left end and the outer ring of the suction tube 32. One port is opened at the left end and three ports are opened at the outer ring. The three suction ports 33 of the outer ring are set in the middle of the gap between the three contact rods 34. The outer ring of the suction tube 32 has three sets of slots, and the three sets of contact rods 34 are rotatably connected in the three sets of slots through the rotating shafts. The sampling part 30 also includes a torsion spring 35, which is installed on the outer ring of the rotating shafts at both ends of the contact rod 34. A pull block 36 is slidably connected to the inner cavity of the contact rod 34. A spring a37 is fixedly connected to the right end of the pull block 36. The right end of the spring a37 is fixedly connected to the right side of the inner cavity of the contact rod 34. A pull rope 38 is fixedly connected to the middle of the right side of the pull block 36. The right end of the pull rope 38 passes through the contact rod 34 and the suction tube 32 and extends into the inner cavity of the sampling tube 31.

[0033] It should be noted that the sampling tube 31 is a soft, foldable medical-grade flexible tube to accommodate different patients; The right end of the contact rod 34 is provided with a slot, and the pull rope 38 is slidably connected in the slot. The slot is located at the upper end of the rotating shaft of the contact rod 34. At the same time, a sealing ring is provided in the inner cavity of the slot to prevent the patient's body fluid from entering the contact rod 34 through the slot. When the pull rope 38 is pulled, it can pull the contact rod 34 upward by relying on its position above the rotating shaft. The torsion spring 35 is used to drive the contact rod 34 to always fit in the empty groove of the outer ring of the suction tube 32, and can cooperate with the pull rope 38 so that the contact rod 34 can be opened to different angles by the pulling force of the pull rope 38 and the resetting force of the torsion spring 35. The outer ring of the contact rod 34 is fitted with a soft medical silicone sleeve to reduce the foreign body sensation for the patient.

[0034] In this embodiment, when the pull cord 38 is pulled by the control unit 40 during use, it pulls the pull block 36 to the right, causing the spring a37 to be compressed. Simultaneously, the force of the pull cord 38 causes the contact rod 34 to rotate around the axis, thus causing the contact rod 34 to rotate outward and extend, creating a gap between the suction port 33 and the patient's airway wall, preventing the suction port 33 from adhering to the airway wall and causing damage. When the pull cord 38 is released and reset, the spring a37 releases its elastic force, pushing the pull block 36 to the left. Simultaneously, the torsion spring 35 drives the contact rod 34 to rotate in the opposite direction around the axis, retracting the contact rod 34.

[0035] Please refer to it again. Figures 9 to 13 The fixing rod 41 is fixedly connected to the lower outer ring of the sampling tube 31 and to the upper left side of the box cover 11. The outer ring of the fixing rod 41 has three sets of sliding grooves, and each of the three sets of sliding grooves has a slider 42 slidably connected in it. The left ends of the three sets of sliders 42 are fixedly connected to the left ends of the three sets of pull ropes 38 respectively. The control part 40 also includes three sets of limiting strips 43. The three sets of limiting strips 43 are all fixedly connected to the outer ring of the fixing rod 41 and are evenly distributed. The moving ring 44 is slidably connected to the outer ring of the three sets of limiting strips 43. Three sets of through slots are evenly provided on the right side of the outer ring of the moving ring 44, and each through slot is slidably connected to a locking block 45. The locking block 45 is located above the slider 42 and is movably sleeved on the outer edge of the slider 42. A spring b46 is fixedly connected to the side of the locking block 45 that moves in the clockwise direction. The other end of the spring b46 is fixedly connected to the inner cavity of the through slot of the outer ring of the moving ring 44. A pull plate 47 is fixedly connected to the upper end of the locking block 45. The pull plate 47 is located on the outer ring of the moving ring 44.

[0036] It should be noted that the slider 42 is a T-shaped structure block to prevent the slider 42 from detaching from the fixing rod 41 and affecting the use of the device; The inner ring of the moving ring 44 has three sets of U-shaped grooves, and the three sets of U-shaped grooves are slidably connected to the outer ring of the three sets of limiting strips 43, which is intended to limit the movement range of the moving ring 44. The locking block 45 is an L-shaped structure block, and a groove is provided at the lower end of the locking block 45. The width of the groove is adapted to the slider 42, so that the locking block 45 can be locked on the outer edge of the slider 42 in the initial state and can drive the slider 42 to move. After the locking block 45 moves, it will disengage from the slider 42. Thus, the slider 42 at any position can be controlled to move according to the needs, and the contact rod 34 at any position can be driven to rotate outward. The moving ring 44 cannot contact the slider 42 to avoid affecting the individual control of the slider 42.

[0037] In this embodiment, during use, the moving ring 44 is driven to move, which in turn moves the locking block 45 and the slider 42, controlling the pulling of the pull rope 38. If it is necessary to control the retraction of a certain part of the contact rod 34, the pull plate 47 can be pushed to slide along the inner cavity of the moving ring 44, causing the locking block 45 to move and disengage from the slider 42. At this time, the slider 42 disengages from the limit and quickly resets, thereby resetting the contact rod 34 at the corresponding position. Under normal conditions, the spring b46 pushes the locking block 45 to press tightly against the outer edge of the slider 42, ensuring the stability of the device during use.

[0038] Please refer to it again. Figures 11 to 15 The outer left side of the moving ring 44 has an annular groove, and a rotating ring 51 is slidably connected in the annular groove. The inner ring of the rotating ring 51 is fixedly connected to three sets of protrusions, and the three sets of protrusions are slidably connected to the left side of the outer ring of the moving ring 44. The positioning part 50 also includes three sets of springs c52. The three sets of springs c52 are respectively fixedly connected to the side of the three sets of protrusions that move in the counterclockwise direction, and the other end of the three sets of springs c52 is fixedly connected to the inner cavity of the moving ring 44. The positioning part 50 also includes a plug 53, which is fixedly connected to the middle of the inner ring of the rotating ring 51, and the lower end of the plug 53 passes through the moving ring 44. The outer ring of the limiting strip 43 has multiple sets of slots 54, and the part of the plug 53 extending out of the moving ring 44 is movably inserted into the slot 54.

[0039] It should be noted that the rotating ring 51 is a circular ring with a T-shaped cross-section, and the outer surface of the rotating ring 51 is provided with anti-slip grooves; The rotation opening direction of the rotating ring 51 is opposite to that of the rotating block 45 to avoid the rotating ring 51 accidentally touching the blocking block 45 when rotating, which would affect the movement control of the slider 42. The slot 54 is provided in multiple sets, which can fix the moving ring 44 in different positions, thereby controlling the contact rod 34 to rotate outward at different angles, improving versatility of use; Preferably, to improve the device's adaptability to different patients, a sliding groove can be provided in the inner ring of the moving ring 44, and a friction positioning bolt or locking sleeve (similar to the positioning bolt for adjusting the height of a fan or the screw positioning structure for adjusting the length of a mop handle) can be installed inside the moving ring 44. The aim is to use the positioning bolt and locking sleeve to achieve stepless adjustment of the position of the moving ring 44, so as to better adapt to the airway wall of different patients and avoid the device from being too tight or too loose, which would affect its normal use.

[0040] In this embodiment, when it is necessary to drive the moving ring 44 to move, the rotating ring 51 is rotated counterclockwise to drive the insert block 53 to disengage from the slot 54, thereby unlocking the moving ring 44. Then, the moving ring 44 can be pushed to move along the limiting bar 43, and the length of the contact rod 34 is adjusted. As the moving ring 44 moves further, the angle of the contact rod 34 rotating outward and the length of its extension also increase until the desired position is reached. Then, the rotating ring 51 is released, and the spring c52 rebounds to push the rotating ring 51 to reset, so that the insert block 53 is inserted into the corresponding slot 54, thereby fixing the moving ring 44 and fixing the length of the contact rod 34.

[0041] The working principle of this invention is as follows: During use, the negative pressure tube 13 is connected to an external negative pressure device to generate negative pressure within the body 10. Then, the sampling tube 31 and suction tube 32 are placed in the patient's airway. Rotating the rotating ring 51 counterclockwise causes the insertion block 53 to disengage from the slot 54, releasing the locking of the moving ring 44. The moving ring 44 is then pushed along the limiting strip 43, causing the locking block 45 and slider 42 to move, controlling the pulling of the pull rope 38. The pull rope 38 then causes the pull block 36 to move to the right, and the contact rod 34 to rotate around the axis. The rotating ring 51 rotates, causing the contact rod 34 to rotate outward and extend, creating a gap between the suction port 33 and the inner wall of the patient's airway, preventing the suction port 33 from adhering to the inner wall of the airway. As the moving ring 44 moves further, the angle of rotation and the extension length of the contact rod 34 also increase until the desired position is reached. Then, the rotating ring 51 is released, and the spring c52 rebounds, pushing the rotating ring 51 back to its original position, allowing the insert block 53 to be inserted into the corresponding slot 54, thus fixing the extension length of the moving ring 44 and the contact rod 34. If it is necessary to control the retraction of a certain part of the contact rod 34, the locking block 45 can be pushed to disengage from the slider 42, causing the slider 42 to quickly return to its original position, thereby resetting the contact rod 34 at the corresponding position. The sputum drawn by the suction port 33 will enter the inner cavity of the body 10 through the sampling tube 31. When a sputum sample needs to be collected, the sealing plug 22 is pulled outward to draw the liquid inside the body 10 into the straw 21. At the same time, the sealing plug 22 will pull the elastic rope 23 to move, so that the sealing ball 24 contacts the entrance of the straw 21 and seals it. At this time, the inner cavity of the straw 21 is isolated from the inner cavity of the body 10. As the sealing plug 22 is continuously pulled outward, it moves to the left side of the drainage port 25. The straw 21 is then completely switched from being connected to the inside of the body 10 to being connected to the outside of the body 10. At this time, the liquid in the straw 21 can be discharged outward through the drainage port 25, completing the sputum sampling process.

[0042] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention are implemented according to conventional methods in the art unless otherwise specified or limited.

Claims

1. A sputum collection device for thoracic surgery nursing, characterized in that: include: The main body has a cover at the top. The sampling section includes a pipette with a sealing plug inside. The lower end of the pipette has a drain outlet, and the sealing plug is located between the inlet and the drain outlet of the pipette. The sampling unit includes a sampling tube connected to the upper left side of the machine body, and the outer end of the sampling tube is connected to a suction tube. The suction tube is equipped with three sets of contact rods, and each of the three sets of contact rods has a pull rope inside its cavity. The control unit includes a fixed rod, which is set on the outer ring of the sampling tube. The outer ring of the fixed rod is equipped with a slider, which is fixedly connected to the bottom end of the pull rope. The outer ring of the fixed rod is equipped with a moving ring, and the inner cavity of the moving ring is equipped with a locking block, which is set on the outer edge of the slider. The positioning part includes a rotating ring, which is disposed on the outer ring of the moving ring, and an insert block is fixedly connected to the inner ring of the rotating ring. The movable ring slides along the fixed rod, causing the locking block and slider to move, which in turn causes the pull rope to pull the contact rod outward. The locking block moves along the inner cavity of the movable ring and disengages from the slider, causing part of the contact rod to reset.

2. The sputum collection device for thoracic surgery nursing according to claim 1, characterized in that: The upper part of the machine body is hinged to the box cover. The lower front of the box cover is fixedly connected with a buckle, and the rear side of the buckle is snapped into the upper front of the machine body. A negative pressure pipe is connected to the upper right side of the box cover, and a feed port is opened on the upper left side of the box cover.

3. The sputum collection device for thoracic surgery nursing according to claim 1, characterized in that: A cavity is provided at the lower left side of the machine body, and the straw is fixedly connected to the middle of the cavity. The sealing plug is slidably connected to the middle of the inner cavity of the straw. The inlet of the right end of the straw extends into the middle of the inner cavity of the machine body. An elastic rope is fixedly connected to the middle of the right end of the sealing plug. The right end of the elastic rope extends into the inner cavity of the machine body and is fixedly connected to a sealing ball. The sealing ball is placed at the bottom of the inner cavity of the machine body. A drain outlet is provided at the lower end of the straw, and the outlet of the drain outlet is located in the inner cavity of the cavity on the left side of the machine body.

4. The sputum collection device for thoracic surgery nursing according to claim 3, characterized in that: The sampling section also includes a storage cavity, which is located on the right side of the inner cavity of the machine body. A negative pressure detector is fixedly installed in the inner cavity of the storage cavity, and the probe of the negative pressure detector extends into the inner cavity of the machine body. A storage battery is also placed in the inner cavity of the storage cavity. A rinsing port is provided at the upper left end of the straw, and the lower end of the rinsing port is located in the middle of the inner cavity of the straw.

5. The sputum collection device for thoracic surgery nursing according to claim 2, characterized in that: The sampling tube is fixedly connected to the upper left side of the machine body and communicates with the feed inlet. The left end of the sampling tube is connected to the suction tube. The sampling part also includes four suction ports. The four suction ports are respectively opened at the left end and the outer ring of the suction tube. One port is opened at the left end and three ports are opened at the outer ring. The three suction ports of the outer ring are located in the middle of the gap between the three contact rods.

6. The sputum collection device for thoracic surgery nursing according to claim 5, characterized in that: The outer ring of the suction tube has three sets of slots, and three sets of contact rods are rotatably connected in the three sets of slots. The sampling part also includes a torsion spring, which is installed on the outer ring of the rotating shaft at both ends of the contact rod. A pull block is slidably connected to the inner cavity of the contact rod. A spring a is fixedly connected to the right end of the pull block. The right end of spring a is fixedly connected to the right side of the inner cavity of the contact rod. A pull rope is fixedly connected to the middle of the right side of the pull block. The right end of the pull rope passes through the contact rod and the suction tube and extends into the inner cavity of the sampling tube.

7. The sputum collection device for thoracic surgery nursing according to claim 1, characterized in that: The fixing rod is fixedly connected to the lower outer ring of the sampling tube and to the upper left side of the box cover. The outer ring of the fixing rod has three sets of sliding grooves, and each of the three sets of sliding grooves has a slider slidably connected in it. The left ends of the three sets of sliders are fixedly connected to the left ends of the three sets of pull ropes respectively. The control part also includes three sets of limiting strips. The three sets of limiting strips are fixedly connected to the outer ring of the fixing rod and are evenly distributed. The moving ring is slidably connected to the outer ring of the three sets of limiting strips.

8. The sputum collection device for thoracic surgery nursing according to claim 7, characterized in that: Three sets of through slots are evenly distributed on the right side of the outer ring of the moving ring, and each slot is slidably connected to a locking block. The locking block is located above the slider and is movably sleeved on the outer edge of the slider. A spring b is fixedly connected to the side of the locking block that moves clockwise. The other end of the spring b is fixedly connected to the inner cavity of the through slot of the outer ring of the moving ring. A pull plate is fixedly connected to the upper end of the locking block and is located on the outer ring of the moving ring.

9. The sputum collection device for thoracic surgery nursing according to claim 7, characterized in that: An annular groove is provided on the left side of the outer ring of the moving ring, and a rotating ring is slidably connected in the annular groove. Three sets of protrusions are fixedly connected to the inner ring of the rotating ring, and the three sets of protrusions are slidably connected to the left side of the outer ring of the moving ring. The positioning part also includes three sets of springs c. The three sets of springs c are fixedly connected to the side of the three sets of protrusions that move in the counterclockwise direction, and the other end of the three sets of springs c is fixedly connected to the inner cavity of the moving ring.

10. The sputum collection device for thoracic surgery nursing according to claim 9, characterized in that: The positioning part also includes an insert block, which is fixedly connected to the middle of the inner ring of the rotating ring, and the lower end of the insert block passes through the moving ring. The outer ring of the limiting strip has multiple sets of slots, and the part of the insert block that extends out of the moving ring is movably inserted into the slot.

Images