Infant tracheal foreign body taking-out device for pediatric department

Abstract

The invention discloses a pediatric infant tracheal foreign body taking-out device in the technical field of pediatric oral cavities, which comprises foreign body forceps and an endoscope, and further comprises an inflatable outer pipe sleeve, an inner sleeve is arranged in the outer pipe sleeve, and a plurality of connecting rods are arranged between the inner sleeve and the outer pipe sleeve. Two ends of the connecting rod are fixedly connected with the outer wall of the inner sleeve and the inner wall of the outer sleeve respectively; a plurality of annular grooves are formed in the outer wall of the outer pipe sleeve in a linear array mode in the axis direction, liquid collecting grooves are formed in the inner bottom walls of the annular grooves in the circumferential direction, and a plurality of first adsorption holes are formed in the inner side walls of the liquid collecting grooves in an annular array mode. Friction force between the expanded outer pipe sleeve and the trachea of the infant is increased through the annular groove, meanwhile, when secreted liquid in the liquid collecting groove is sucked through the first adsorption holes, certain negative pressure is formed in the annular groove, the stabilizing force between the inner wall of the trachea of the infant and the outer wall of the outer pipe sleeve is further increased, and therefore the situation that the outer pipe sleeve slides due to disordered movement of the child is reduced; and the foreign body forceps fall off the protection range.

Description

Technical Field

[0001] The present invention relates to the technical field of pediatric oral medicine, and in particular to a pediatric infant tracheal foreign body removal device. Background Art

[0002] Foreign bodies in the trachea of ​​infants and young children are a common cause of life-threatening emergencies in infants and young children, and mostly occur in children aged 1-3 years. Due to the special anatomy of the larynx of infants and young children (tracheal diameter is only 4-7mm, cartilage rings are underdeveloped), the swallowing reflex is not sound, and they are in the oral exploration period, the risk of aspiration is significantly higher than that of adults. Clinical statistics show that more than 80% of foreign bodies are food (peanuts, nuts, jelly) and small toy parts (button batteries, plastic sheets), among which button batteries can cause tracheal corrosion and perforation within 2 hours due to electrolyte leakage. Foreign bodies are often stuck in the narrow area under the glottis (accounting for 65%), which can easily cause suffocation, local edema and secondary infection, and the window for treatment is short (golden time ≤ 4 hours).

[0003] After searching, the patent with publication number CN209678648U discloses a tracheal foreign body removal device, including: an outer tube, which is provided with a first inner cavity, a second inner cavity and a third inner cavity extending into the trachea; a tube handle, which is mounted on the end of the outer tube away from the human body, and is provided with a first interface communicating with the first inner cavity, a second interface communicating with the second inner cavity, and a third interface communicating with the third inner cavity; an endoscope assembly, which can slide through the first inner cavity through the first interface; a foreign body forceps assembly, which can slide through the second inner cavity through the second interface; a ventilation tube, which can be slidably inserted into the third inner cavity through the third interface; the ventilation tube is connected to the ventilator; and an airbag assembly, which is covered on the outer wall of the outer tube.

[0004] During actual use, the existing devices still have some defects: infants and young children usually have a lot of airway secretions, and these secretions can easily affect the field of view when observed with an endoscope; and for some fragile foreign objects, when they are clamped with mechanical instruments such as foreign body forceps, the foreign objects can easily break, causing other health problems; at the same time, during treatment, most infants and young children will move their bodies due to discomfort, which will affect the position of the tube in the trachea (sliding in the trachea), and at this time it is easy for the clamping mechanism to leave the protective area of ​​the tube, which will cause the inner wall of the trachea to collide with the clamping mechanism when the infant moves around, causing injury.

[0005] Therefore, the present invention proposes a pediatric infant tracheal foreign body removal device to solve the above problems. Summary of the Invention

[0006] To solve the above problems, the present invention provides a pediatric infant tracheal foreign body removal device, which promptly extracts secretions from the inner wall of the infant's trachea, enhances the stability of the protective mechanism during clamping, and ensures that the clamping mechanism is always within the working range of the protective mechanism, thereby reducing the risk of direct contact between the clamping mechanism and the inner wall of the infant's trachea.

[0007] To achieve the above-mentioned objectives, the technical solution of the present invention is as follows: a pediatric infant tracheal foreign body removal device, comprising a foreign body forceps and an endoscope, and also comprising an inflatable outer tube sleeve, an inner tube sleeve disposed within the outer tube sleeve, and a plurality of connecting rods disposed between the inner tube sleeve and the outer tube sleeve, with the ends of the connecting rods being fixedly connected to the outer wall of the inner tube sleeve and the inner wall of the outer tube sleeve, respectively;

[0008] The outer wall of the outer sleeve has a plurality of annular grooves in a linear array along its axial direction, the inner bottom wall of the annular groove has a liquid collecting groove along its circumference, and the inner side wall of the liquid collecting groove has a plurality of first adsorption holes in an annular array;

[0009] It also includes a pump assembly for providing gas for expanding the outer tube sleeve and providing negative pressure, and the first adsorption hole and the outer tube sleeve are both connected to the pump assembly;

[0010] When grasping a foreign body, both the foreign body forceps and the endoscope are inserted into the inner cannula to reach the target position and grasp the foreign body.

[0011] Principle of the basic solution: When the outer tube sleeve is not inflated, the endoscope is installed in the inner tube, and the front end of the outer tube sleeve is then inserted into the infant's trachea. Observation is performed through the endoscope. Once the target position is reached, the pump assembly is activated to inflate the outer tube sleeve, causing it to expand. Its surface contacts the inner wall of the trachea (with a certain amount of compression). At this time, due to the presence of the annular groove, the inner wall of the trachea is slightly embedded in it, forming a certain resistance, preventing the outer tube sleeve from continuously shifting in position when the infant moves. After the outer tube sleeve is inflated and positioned, the pump assembly is used to generate negative pressure in the first adsorption holes to draw tracheal secretions into the sump, preventing excessive secretions from interfering with the endoscope's vision during foreign body removal. At the same time, it reduces the force between the outer tube sleeve and the inner wall of the trachea due to excessive secretions, which may cause the outer tube sleeve to shift. In addition, the simultaneous action of multiple first adsorption holes will also generate negative pressure within the annular groove and the sump within a safe range, further making the inner wall of the trachea fit with the outer wall of the outer tube sleeve, ensuring that the protection area of ​​the outer tube sleeve for foreign body clamps is within a safe range when the infant moves.

[0012] The above scheme has the following beneficial effects: 1. The inflatable outer tube sleeve of the present invention forms a multi-level adsorption network after expansion and positioning through the coordinated design of the annular groove and the liquid collecting tank. The negative pressure generated by the first adsorption hole not only actively sucks the tracheal secretions into the liquid collecting tank to prevent it from blocking the endoscope's field of view, but also makes the tracheal wall and the outer tube sleeve fit more tightly through local micro-negative pressure. This fit not only enhances the anti-displacement ability of the outer tube sleeve, but also maintains the stability of the contact surface friction through secretion drainage. Compared with the traditional method that simply relies on airbag extrusion and fixation, this solution indirectly improves the stability of the device through secretion management, and is especially suitable for infants and young children with vigorous secretions. When the child twists due to discomfort, the outer tube sleeve can not only prevent large displacement through the mechanical resistance of the physically embedded annular groove, but also use dynamic negative pressure to adaptively compensate for the lubricating effect of secretions on the contact surface. The dual mechanism ensures that the foreign body forceps operation channel is always in the protection area;

[0013] 2. When inflated, the outer sleeve forms a flexible barrier around the foreign body forceps. Its annular groove structure in the expanded state creates distributed stress dispersion points on the inner wall of the trachea, reducing local pressure. When the foreign body forceps contact a foreign object, the elastic cushioning of the outer sleeve absorbs some of the operational impact, reducing the risk of foreign body fragmentation caused by instrument vibration during clamping. For foreign objects that easily release corrosive substances, such as button batteries, the rapid secretion removal function shortens their contact time with body fluids, and the stable operating environment enables doctors to precisely control the clamping force.

[0014] Furthermore, a plurality of flow grooves are opened on the surface of the outer tube sleeve along its length direction, and the flow grooves are distributed in a circular array along the circumference of the outer tube sleeve.

[0015] Beneficial effects: After inflation, the circulation groove forms a flexible diversion channel, which not only promotes the directional collection of secretions along the groove to the liquid collection groove to improve the adsorption efficiency, but also disperses the contact stress between the outer tube sleeve and the tracheal wall, avoiding local compression and mucosal ischemia damage; the circumferentially distributed groove body adaptively adjusts the airflow and liquid flow paths when the child twists, maintaining multi-directional stability.

[0016] Furthermore, a separation membrane is provided between the inner sleeve and the outer sleeve, and the separation membrane is close to the bottom end of the inner sleeve. The separation membrane divides the inside of the outer sleeve into a negative pressure zone and a stable zone from left to right, and the connecting rods are all located in the stable zone.

[0017] Beneficial Effect: The separator membrane allows for independent pressure control in each zone, allowing the negative pressure zone to focus on efficient secretion absorption, preventing the transfer of negative pressure from suction to the stable zone and impacting the supporting strength of the connecting rod. This separation ensures that negative pressure absorption and mechanical stability do not interfere with each other, ensuring controlled deformation of the outer sheath during foreign body forceps manipulation and reducing the risk of device migration.

[0018] Furthermore, a plurality of second adsorption holes are opened on the inner wall of the negative pressure area, and the second adsorption holes are all connected to the pump assembly.

[0019] Beneficial Effects: The second adsorption hole forms a secondary adsorption network within the negative pressure zone. This, on the one hand, enhances secretion suction efficiency and prevents viscous liquid retention that can obscure the endoscopic field of view. On the other hand, it actively captures tiny debris produced by the breakage of foreign matter, preventing it from falling deep into the trachea and causing secondary obstruction or infection. This, in conjunction with the annular layout of the first adsorption hole, creates a hierarchical processing mode of "directional drainage of the main adsorption slot + fine cleaning of the auxiliary adsorption hole," which reduces the load on the pump components and ensures cleanliness throughout the entire foreign matter removal process. At the same time, the negative pressure zone is isolated from the stable zone by a separator membrane, increasing the stability of the negative pressure in the negative pressure zone and improving operational safety.

[0020] Furthermore, the diameter of the first adsorption holes is larger than the diameter of the second adsorption holes.

[0021] Beneficial Effects: The larger diameter of the first adsorption hole reduces suction resistance in the sump, prioritizing rapid drainage of high-volume secretions and preventing clogging with viscous fluids. The smaller diameter of the second adsorption hole precisely absorbs and fragments foreign particles through a localized high negative pressure gradient, forming a dual-layer barrier of "coarse filtration + fine suction." Through the differential pore size and linked control of the pump unit, the negative pressure zone remains within the safe threshold for infant mucosa, while the sump maintains a moderate negative pressure, preventing excessive mucosal adsorption damage while ensuring that foreign debris is locked in the negative pressure zone.

[0022] Furthermore, a plurality of positioning brackets are fixedly connected to the inner wall of the inner sleeve, and the positioning brackets are used to fix the endoscope.

[0023] Beneficial effect: The endoscope is fixed to the inner wall of the inner sleeve through the positioning bracket, which avoids the doctor having to hold the forceps in one hand and the endoscope in the other hand to operate, thereby improving the convenience of foreign body clamping.

[0024] Furthermore, the positioning bracket is an arc-shaped structure.

[0025] Beneficial Effects: The positioning bracket flexibly clamps the endoscope through its curved structure, preventing both visual field vibration caused by scope slippage and scratches on the mirror surface caused by rigid fixation. Its circumferential distribution design evenly transmits vibration energy during instrument operation, maintaining the coaxiality of the endoscope axis and the inner cannula, ensuring that the foreign body forceps' travel path accurately matches the observation field of view, and reducing the risk of accidental contact with the tracheal wall.

[0026] Furthermore, the outer tube sleeve is made of rubber.

[0027] Beneficial effects: The rubber material gives the outer tube sleeve high elasticity and biocompatibility. After inflation, it can adapt to the narrow and underdeveloped tracheal wall shape of infants and young children, and evenly disperse the contact pressure through elastic deformation, avoiding local compression that causes mucosal edema or cartilage ring damage; its flexibility cushions the rigid collision between the instrument and tissue when the child twists, while maintaining the embedding resistance between the annular groove and the tracheal wall, ensuring the dual optimization of the outer tube sleeve's anti-displacement performance and tissue protection.

[0028] Further, the outer sleeve is provided with a plurality of third suction holes at the bottom end, and the third suction holes are communicated with the pump assembly.

[0029] Beneficial effects: the third suction holes directly act on the foreign body retention area, forming terminal directional suction force, quickly removing the viscous secretion wrapped around the foreign body, reducing the risk of instrument slipping caused by liquid lubrication during clamping; and the third suction holes and the annular groove suction holes form a three-dimensional suction network, which synchronously sucks the secretion at the proximal end (tracheal wall) and the distal end (foreign body surface), avoids the interference of liquid accumulation in the visual field blind area on the operation accuracy, and reduces the probability that the foreign body is difficult to clamp due to the enhanced adhesion between the wet surface and the tracheal wall

[0030] Further, the edges of the annular groove and the flow channel are both rounded structures.

[0031] Beneficial effects: the rounded structure eliminates the edge stress concentration point, makes the contact surface between the annular groove and the tracheal wall smoothly transition during inflation, avoids scratching the mucosa by sharp edges, and guides the tissue to uniformly embed in the groove through the arc surface, thereby enhancing the anti-displacement friction force; the rounded design of the flow channel optimizes the secretion flow path, reduces the turbulent interference caused by liquid retention, and forms a low-resistance drainage channel in cooperation with negative pressure suction.

[0032] Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will become apparent to those skilled in the art upon examination of the following description, or can be learned by practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 It is a whole axonometric view of the embodiment of the pediatric infant tracheal foreign body removal device of the application;

[0034] Figure 2 It is a whole axonometric half-sectional view of the embodiment of the pediatric infant tracheal foreign body removal device of the application;

[0035] Figure 3 It is an enlarged view of part A of the embodiment of the pediatric infant tracheal foreign body removal device of the application;

[0036] Figure 4 It is a lateral sectional view of the outer sleeve of the embodiment of the pediatric infant tracheal foreign body removal device of the application.

[0037] The reference signs in the drawings of the specification include: 1, outer sleeve; 2, annular groove; 201, liquid collecting groove; 202, first suction hole; 3, flow channel; 4, third suction hole; 5, second suction hole; 6, inner sleeve; 7, endoscope; 8, positioning support; 9, separation membrane; 10, foreign body forceps. DETAILED DESCRIPTION

[0038] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0039] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0040] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0041] The following is further described in detail through specific implementation methods:

[0042] Example 1:

[0043] As attached Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown: A pediatric infant tracheal foreign body removal device includes a foreign body forceps 10 and an endoscope 7, so that the specific situation inside the trachea can be observed through the endoscope 7 and the foreign body forceps 10 can be used to clamp the foreign body.

[0044] Because infants and young children cannot control their movements well, they may move around due to discomfort when trying to remove a foreign object, which may increase the probability of damage to the trachea due to collision between the foreign body forceps 10 and other gripping instruments. Although existing devices can reduce the probability of damage by placing the foreign body forceps 10 and endoscope 7 in an elastic sleeve to prevent them from directly contacting the tracheal inner wall, the elastic sleeve is difficult to maintain near the foreign object due to the large amount of secretion in the trachea of ​​infants and young children and their body movements. Under the above-mentioned conditions, the elastic sleeve is prone to slip along the tracheal inner wall, causing the foreign object to accidentally hit the foreign object and fall deeper into the trachea, increasing the difficulty of operation. At the same time, it may also cause the working portion of the front end of the foreign body forceps 10 to escape from the protection range of the elastic sleeve.

[0045] Therefore, this solution also includes an inflatable outer tube sleeve 1, that is, the outer tube sleeve 1 is made of rubber, which gives the outer tube sleeve 1 high elasticity and biocompatibility. After inflation, it can adapt to the narrow and underdeveloped tracheal wall shape of infants and young children, and evenly disperse the contact pressure through elastic deformation, avoiding local compression that causes mucosal edema or cartilage ring damage; an inner tube sleeve 6 is provided inside the outer tube sleeve 1, and a number of connecting rods are provided between the inner tube sleeve 6 and the outer tube sleeve 1, with the ends of the connecting rods fixedly connected to the outer wall of the inner tube sleeve 6 and the inner wall of the outer tube sleeve 1 respectively. At the same time, in order to facilitate the safe and efficient insertion of the device into the infant's trachea, the connecting rods and the inner tube sleeve 6 are both made of elastic materials, such as natural rubber, and the connecting rods are both hollow inside and connected to the outer tube sleeve 1. That is, the connecting rods and the outer tube sleeve 1 expand and contract simultaneously, ensuring that the connecting rods support the inner tube sleeve 6 after insertion and expansion of the outer tube sleeve 1. At the same time, when the foreign body forceps 10 collides with the inner wall of the inner sleeve 6 (sudden deviation of the foreign body forceps 10), the elasticity of the connecting rod and the inner sleeve 6 plays a buffering role, that is, slowing down the rapid deviation of the foreign body forceps 10 and improving the stability and safety of the operation.

[0046] At the same time, in order to facilitate the operation of the endoscope 7, a number of positioning brackets 8 are fixedly connected to the inner wall of the inner sleeve 6. The positioning brackets 8 are used to fix the endoscope 7. The positioning brackets 8 are all arc-shaped structures. The endoscope 7 is fixed to the inner wall of the inner sleeve 6 by the positioning brackets 8, which avoids the doctor from having to hold the forceps in one hand and the endoscope 7 in the other hand to operate, thereby improving the convenience of foreign body clamping. At the same time, the positioning brackets 8 flexibly clamp the endoscope 7 through the arc structure, which not only avoids the field of view jitter caused by the sliding of the mirror body, but also prevents the mirror surface from being scratched due to rigid fixation.

[0047] When clamping a foreign body, the foreign body forceps 10 and the endoscope 7 are both inserted into the inner cannula 6 to reach the target position and clamp the foreign body.

[0048] The device also includes a pump assembly (air pump) for providing gas for expanding the outer tube sleeve 1 and providing negative pressure.

[0049] Specifically, the outer wall of the outer sleeve 1 has a plurality of annular grooves 2 arranged in a linear array along its axial direction, the inner bottom wall of the annular groove 2 is provided with a liquid collecting groove 201 along its circumference, and the inner side wall of the liquid collecting groove 201 is provided with a plurality of first adsorption holes 202 arranged in an annular array. A separation membrane 9 is provided between the inner sleeve 6 and the outer sleeve 1. The separation membrane 9 is close to the bottom end of the inner sleeve 6. The separation membrane 9 divides the interior of the outer sleeve 1 from left to right into a negative pressure zone and a stable zone (such as Figure 2 As shown), the connecting rods are all located in the stable area, a plurality of second adsorption holes 5 are opened on the inner wall of the negative pressure area, and a plurality of third adsorption holes 4 are opened at the bottom end of the outer tube sleeve 1.

[0050] The first adsorption hole 202, outer tube sleeve 1, second adsorption hole 5, and third adsorption hole 4 are all connected to the pump assembly and are independently controlled. Because the subjects are infants and young children, whose tracheal walls are relatively thin, the diameter of the first adsorption hole 202 is larger than that of the second adsorption hole 5. The larger diameter of the first adsorption hole 202 reduces the suction resistance of the sump 201, giving priority to quickly draining large amounts of secretions to avoid clogging with viscous liquids. Meanwhile, the smaller diameter of the second adsorption hole 5 allows for precise adsorption of shattered foreign particles through a localized high negative pressure gradient, ensuring sufficient negative pressure within the negative pressure zone to partially adsorb the shattered tiny foreign particles (locking them within the negative pressure zone) while also ensuring that the negative pressure in the annular groove 2 area remains within the safety threshold of the infant's mucosa.

[0051] The specific implementation process is as follows: In the uninflated state, the outer tube sleeve 1 is inserted into the trachea through the glottis with the inner tube 6 in a low-profile form. After real-time navigation to the area where the foreign body is stuck through the endoscope 7, the air pump is started to inflate the outer tube sleeve 1 so that it expands and fits the tracheal wall. The annular groove 2 on the surface of the outer tube sleeve 1 forms a "concave-convex bite" structure after inflation, and the tracheal mucosa is partially embedded in the annular groove 2 by utilizing the elasticity of the rubber. Combined with the guiding effect of the flow groove 3, anti-slip resistance is generated synchronously in the axial and circumferential directions, effectively counteracting the displacement caused by the twisting of the child. The connecting rod is made of a hollow elastic material and expands synchronously with the outer tube sleeve 1, which not only enhances the radial support force of the inner tube 6, but also buffers the sudden displacement of the foreign body forceps 10 during operation through elastic deformation.

[0052] After the pump assembly is activated, the first adsorption hole 202 (1.2mm diameter) establishes a negative pressure (-3kPa) within the sump 201, preferentially aspirating large secretions. Within the negative pressure zone isolated by the separator membrane 9, the second adsorption hole 5 (0.8mm diameter) generates a negative pressure (-8kPa), precisely adsorbing and fragmenting foreign particles. The third adsorption hole 4 at the bottom of the outer tube 1 selectively aspirates secretions from the surface of foreign matter, forming a three-stage network of "proximal drainage - mid-end fine adsorption - distal targeted cleaning." By combining aperture differences and a negative pressure gradient design, excessive adsorption damage to the mucosa is avoided (safety threshold > -15kPa), while foreign debris is locked within the negative pressure zone, preventing secondary dislodging.

[0053] Simultaneously, inner cannula 6 flexibly secures endoscope 7 via positioning bracket 8, and the arc-shaped clamping structure eliminates scope vibration and maintains a stable field of view. As forceps 10 advance within inner cannula 6, outer cannula 1 and the connecting rod work together to convert forceps tip deflection energy into elastic deformation absorption, keeping the instrument tip within the "flexible wrapping zone" of outer cannula 1. When gripping fragile foreign objects such as button batteries, the rounded corners of outer cannula 1's annular groove 2 disperse contact stress, reducing the risk of foreign object rupture caused by clamping impact.

[0054] Some experimental data are as follows:

[0055] Test subjects: simulated trachea model of infants aged 1-3 years (inner diameter 5mm, simulated mucosa layer thickness 0.3mm). Groups: Control group: traditional elastic sleeve foreign body removal device; Experimental group: device of the present invention.

[0056] Table 1-Comparison of medical device test indicators

[0057]

[0058]

[0059] Example 2:

[0060] The difference from the above embodiment is that the edges of the annular groove 2 and the circulation groove 3 are both rounded structures. The rounded structure eliminates the edge stress concentration point, and makes the contact surface between the annular groove 2 and the tracheal wall transition smoothly when inflated, which not only avoids the sharp edges from scratching the mucosa, but also guides the tissue to be evenly embedded in the annular groove 2 through the arc surface, thereby enhancing the anti-displacement friction force; the rounded corner design of the circulation groove 3 optimizes the secretion flow path, reduces the turbulent interference caused by liquid retention, and cooperates with negative pressure adsorption to form a low-resistance drainage channel.

[0061] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A pediatric infant tracheal foreign body removal device, comprising a foreign body forceps (10) and an endoscope (7), characterized in that: It also includes an inflatable outer tube sleeve (1), an inner tube sleeve (6) is provided inside the outer tube sleeve (1), a plurality of connecting rods are provided between the inner tube sleeve (6) and the outer tube sleeve (1), and the two ends of the connecting rods are fixedly connected to the outer wall of the inner tube sleeve (6) and the inner wall of the outer tube sleeve (1) respectively; The outer wall of the outer tube sleeve (1) is provided with a plurality of annular grooves (2) in a linear array along its axial direction, the inner bottom wall of the annular groove (2) is provided with a liquid collecting groove (201) along its circumference, and the inner side wall of the liquid collecting groove (201) is provided with a plurality of first adsorption holes (202) in an annular array; It also includes a pump assembly for providing gas for expanding the outer tube sleeve (1) and providing negative pressure, and the first adsorption hole (202) and the outer tube sleeve (1) are both in communication with the pump assembly; When a foreign body is clamped, the foreign body forceps (10) and the endoscope (7) are both inserted into the inner sleeve (6) to reach the target position and clamp the foreign body.

2. The pediatric infant tracheal foreign body removal device according to claim 1, characterized in that: A plurality of flow grooves (3) are formed on the surface of the outer tube sleeve (1) along its length direction, and the flow grooves (3) are distributed in a circular array along the circumference of the outer tube sleeve (1).

3. The pediatric infant tracheal foreign body removal device according to claim 2, characterized in that: A separation membrane (9) is provided between the inner sleeve (6) and the outer sleeve (1). The separation membrane (9) is close to the bottom end of the inner sleeve (6). The separation membrane (9) divides the interior of the outer sleeve (1) into a negative pressure zone and a stable zone from left to right, respectively. The connecting rods are all located in the stable zone.

4. The pediatric infant tracheal foreign body removal device according to claim 3, characterized in that: A plurality of second adsorption holes (5) are opened on the inner wall of the negative pressure area, and the second adsorption holes (5) are all communicated with the pump assembly.

5. The pediatric infant tracheal foreign body removal device according to claim 4, characterized in that: The diameter of the first adsorption holes (202) is greater than the diameter of the second adsorption holes (5).

6. The pediatric infant tracheal foreign body removal device according to claim 5, characterized in that: A plurality of positioning brackets (8) are fixedly connected to the inner wall of the inner sleeve (6), and the positioning brackets (8) are used to fix the endoscope (7).

7. The pediatric infant tracheal foreign body removal device according to claim 6, characterized in that: The positioning bracket (8) is an arc-shaped structure.

8. The pediatric infant tracheal foreign body removal device according to claim 7, characterized in that: The outer tube sleeve (1) is made of rubber.

9. The pediatric infant tracheal foreign body removal device according to claim 8, characterized in that: A plurality of third adsorption holes (4) are formed at the bottom end of the outer tube sleeve (1), and the third adsorption holes (4) are all communicated with the pump assembly.

10. The pediatric infant tracheal foreign body removal device according to claim 9, characterized in that: The edges of the annular groove (2) and the circulation groove (3) are both rounded structures.

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