Nasopharyngeal tampon device

Abstract

The application discloses a nasopharynx filling device, which comprises a filling mechanism, an adjusting mechanism and a driving mechanism. The filling mechanism is provided with a through hole for air permeation and is used for filling and abutting against a nasal cavity. The adjusting mechanism comprises a connecting rod, a positioning piece and an adjusting member. The connecting rod comprises a transmission end and a hinged end. The hinged end of the connecting rod is hinged to one end of the adjusting member. One end of the positioning piece is hinged to one side of the adjusting member which is close to the connecting rod. The driving mechanism is in transmission connection with the connecting rod. One end of the positioning piece is fixed to the driving mechanism. The filling mechanism is sleeved to the outside of the adjusting member. The driving mechanism is used for driving the transmission end of the connecting rod to rotate around the hinged end. The technical scheme is aimed at realizing the driving adjustment to conform to the inside of the nasopharynx.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a nasopharyngeal packing device. Background Technology

[0002] Nasopharyngeal hemorrhage is a common emergency in clinical practice and routine care. Rapid, safe, and effective packing hemostasis is the core treatment for controlling bleeding and preventing complications. Currently, commonly used hemostatic devices in clinical practice include Vaseline gauze strips, expandable sponges, and single-lumen balloon catheters. While these can achieve hemostasis to some extent through compression, the overall operation relies heavily on the experience of medical staff. Precise control of the insertion depth, advancement angle, and final placement is difficult, easily leading to problems such as insufficient packing, uneven compression, or excessive local pressure. These devices are mostly rigid or semi-flexible straight-through structures, unable to actively adjust their posture according to the physiological curvature of the nasal cavity. After entering the nasal cavity, they are prone to causing hard friction with the mucosa, increasing patient pain and the risk of mucosal damage, and failing to meet the modern clinical demands for minimally invasive, comfortable, and precise hemostasis.

[0003] With the development of minimally invasive techniques, nasopharyngeal packing devices with balloon structures have become increasingly popular, but existing products still have significant limitations. Most devices use only a single balloon or a simple combination of multiple balloons. After the balloons are inflated, their overall expansion shape is fixed, making it impossible to achieve independent pressure adjustment in different zones. This makes it difficult to achieve conformal fit and targeted compression for irregular bleeding points, and it is easy to cause incomplete hemostasis or obstructed ventilation.

[0004] Meanwhile, these devices generally lack depth-controllable and posture-adjustable guiding and positioning structures, making it impossible to achieve precise control of the implantation stroke and real-time adjustment of the front-end bending posture through external drive. This results in the balloon being difficult to stably align with the bleeding area, leading to low clinical operation efficiency, large alignment deviations, and affecting the reliability of hemostasis and the patient's ventilation experience. Summary of the Invention

[0005] The main objective of this invention is to provide a nasopharyngeal packing device that is adjustable to conform to the interior of the nasopharynx.

[0006] To achieve the above objectives, the present invention provides a nasopharyngeal packing device, the nasopharyngeal packing device comprising: A filling mechanism, wherein the filling mechanism is provided with a through hole for ventilation, and the filling mechanism is used to fill and abut against the nasal cavity; An adjustment mechanism is provided, comprising a connecting rod, a positioning member, and an adjustment component; the connecting rod includes a transmission end and a hinge end, the hinge end of the connecting rod is hinged to one end of the adjustment component, and one end of the positioning member is hinged to the side of the adjustment component closest to the connecting rod. A driving mechanism is connected to the connecting rod in a transmission manner, and one end of the positioning member is fixed to the driving mechanism; The filling mechanism is sleeved on the outside of the adjusting member, and the driving mechanism is used to drive the transmission end of the connecting rod to rotate around the hinge end.

[0007] In some embodiments of the present invention, the adjusting member includes a first hinge arm, a second hinge arm, and a support rod; the hinge end of the connecting rod is hinged to one end of the first hinge arm, and one end of the positioning member is hinged to the side of the first hinge arm near the connecting rod. The other end of the first hinged arm is hinged to one end of the second hinged arm, one end of the support rod is hinged to the positioning member, and the other end of the support rod is hinged to one end of the second hinged arm; The hinge axis of the support rod and the positioning member coincides with the hinge axis of the first hinge arm and the positioning member. In the vertical direction of the second hinge arm, the support rod is spaced apart from the hinge axis of the second hinge arm and from the hinge axis of the first hinge arm. The filling mechanism is sleeved on the outside of the first hinge arm, the second hinge arm, and the support rod.

[0008] In some embodiments of the present invention, the driving mechanism includes a support member, a driving rod member, and a transmission member, and the other end of the positioning member is fixedly connected to the support member; One end of the transmission component is hinged to the transmission end of the connecting rod, the other end of the transmission component is hinged to one end of the driving rod, and the two ends of the transmission component are hinged to the support component.

[0009] In some embodiments of the present invention, the end of the first hinged arm that is hinged to the connecting rod is provided with a clearance groove for the connecting rod to rotate and avoid. The clearance groove extends through the thickness of the first hinged arm, and the connecting rod is hinged to both ends of the clearance groove.

[0010] In some embodiments of the present invention, the transmission member includes a first hinge end and a second hinge end that are respectively hinged to the connecting rod and the driving rod, and a third hinge end that is hinged to the support member, wherein the first hinge end and the second hinge end are spaced apart in the vertical direction. The third hinge end is located on the horizontal side corresponding to the first hinge end and the second hinge end, and the third hinge end is located between the first hinge end and the second hinge end. The third hinge end is located at the connection point between the support member and the positioning member.

[0011] In some embodiments of the present invention, an elliptical positioning head is provided at the end of the second hinge arm away from the first hinge arm.

[0012] In some embodiments of the present invention, the driving mechanism further includes a pushing member and a guide post, wherein the pushing member is hinged to the other end of the driving rod, and the guide post is horizontally arranged and one end is connected to the support member; The pushing member is slidably connected to the guide post, and the pushing member can reciprocate along the axial direction of the guide post.

[0013] In some embodiments of the present invention, the filling mechanism includes a first airbag and a second airbag, the first airbag having a central cavity, and the second airbag being sleeved on the outside of the first airbag.

[0014] In some embodiments of the present invention, a plurality of third airbags are further included, the plurality of third airbags being arranged circumferentially along the first airbag.

[0015] In some embodiments of the present invention, the nasopharyngeal packing device further includes a handle and a support platform, the support platform being fixed to the upper end of the handle, and the support member and the guide post being fixed to the support platform.

[0016] The technical solution of this invention comprises a nasopharyngeal packing device consisting of three parts: a packing mechanism, an adjustment mechanism, and a drive mechanism. The packing mechanism is used to enter the nasal cavity and abut against the nasal cavity wall, achieving packing and compression for hemostasis. Ventilation holes are provided on the packing mechanism to ensure airflow even during hemostasis, preventing respiratory obstruction and improving comfort during use. The adjustment mechanism includes a connecting rod, a positioning component, and an adjustment member. The connecting rod has a transmission end and a hinge end, which is hinged to one end of the adjustment member. One end of the positioning component is connected to the adjustment member near the connecting rod, forming a stable support point and providing a reliable basis for changes in the adjustment member's posture. The drive mechanism is connected to the connecting rod, and one end of the positioning component is fixed to the drive mechanism, making the adjustment mechanism and drive mechanism an integrated transmission assembly. In use, the drive mechanism provides power, causing the transmission end of the connecting rod to rotate around the hinge end. Through the transmission action of the hinge point, the overall posture of the adjustment member changes, achieving synchronous adjustment of insertion depth and bending angle. The filling mechanism is fitted outside the adjustment component and moves synchronously with the adjustment component. It can smoothly advance along the physiological curvature of the nasal cavity and stably fit the inner wall of the nasal cavity, ultimately achieving the technical effects of smooth implantation, accurate positioning, reliable hemostasis, and smooth ventilation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the nasopharyngeal packing device of the present invention; Figure 2 This is a schematic diagram of the disassembled structure of the filling mechanism of the nasopharyngeal packing device of the present invention; Figure 3 This is one of the partial structural schematic diagrams of the nasopharyngeal packing device of the present invention; Figure 4 This is a schematic diagram of the drive mechanism of the present invention; Figure 5 This is a schematic diagram of the adjustment mechanism of the present invention; Figure 6 This is a second partial structural schematic diagram of the nasopharyngeal packing device of the present invention; Explanation of icon numbers: 100. Filling mechanism; 110. First airbag; 120. Second airbag; 130. Third airbag; 200. Adjustment structure; 210. Connecting rod; 220. Positioning component; 230. Adjustment component; 231. First hinge arm; 232. Second hinge arm; 233. Support rod; 234. Clearance groove; 300. Drive mechanism; 310. Support component; 320. Drive rod; 330. Transmission component; 331. First hinge end; 332. Second hinge end; 333. Third hinge end; 340. Positioning head; 350. Pushing component; 360. Guide column; 400. Handle; 500. Support platform; Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0020] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0021] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, the user should consider such a combination of technical solutions to be non-existent and not within the scope of protection claimed by this invention.

[0022] See appendix Figure 1-6 The present invention provides a nasopharyngeal packing device, which includes: The filling mechanism 100 is provided with a through hole for ventilation and is used to fill and abut against the nasal cavity. The adjustment mechanism includes a connecting rod 210, a positioning member 220, and an adjustment component 230. The connecting rod 210 includes a transmission end and a hinge end. The hinge end of the connecting rod 210 is hinged to one end of the adjustment component 230, and one end of the positioning member 220 is hinged to the side of the adjustment component 230 near the connecting rod 210. The drive mechanism 300 is connected to the connecting rod 210 in a transmission manner, and one end of the positioning member 220 is fixed to the drive mechanism 300. The filling mechanism 100 is sleeved on the outside of the adjusting member 230, and the driving mechanism 300 is used to drive the transmission end of the connecting rod 210 to rotate around the hinge end.

[0023] Based on the above technical features, the nasopharyngeal packing device consists of three parts: a packing mechanism 100, an adjustment mechanism, and a drive mechanism 300. The packing mechanism 100 is used to enter the nasal cavity and abut against the nasal cavity wall to achieve packing and compression hemostasis. The packing mechanism 100 has ventilation holes to ensure airflow even during hemostasis, preventing respiratory obstruction and improving comfort during use. The adjustment mechanism includes a connecting rod 210, a positioning member 220, and an adjustment component 230. The connecting rod 210 has a transmission end and a hinge end, which is hinged to one end of the adjustment component 230. One end of the positioning member 220 is connected to the adjustment component 230 near the connecting rod 210, forming a stable support point and providing a reliable basis for the adjustment component 230's posture changes. The drive mechanism 300 is connected to the connecting rod 210, and one end of the positioning member 220 is fixed to the drive mechanism 300, making the adjustment mechanism and the drive mechanism 300 an integrated transmission assembly. In use, the drive mechanism 300 provides power, causing the transmission end of the connecting rod 210 to rotate around the hinge end. Through the transmission action of the hinge point, the overall posture of the adjusting component 230 is changed, achieving synchronous adjustment of the insertion depth and bending angle. The filling mechanism 100 is fitted outside the adjusting component 230 and moves synchronously with it. It can smoothly advance along the physiological curvature of the nasal cavity and stably fit the inner wall of the nasal cavity, ultimately achieving the technical effects of smooth implantation, accurate positioning, reliable hemostasis, and smooth ventilation.

[0024] Furthermore, the adjusting member 230 includes a first hinge arm 231, a second hinge arm 232, and a support rod 233; the hinged end of the connecting rod 210 is hinged to one end of the first hinge arm 231, and one end of the positioning member 220 is hinged to the side of the first hinge arm 231 near the connecting rod 210; the other end of the first hinge arm 231 is hinged to one end of the second hinge arm 232, one end of the support rod 233 is hinged to the positioning member 220, and the other end of the support rod 233 is hinged to the first hinge arm 231. One end of the two hinged arms 232 is hinged; the hinge axis of the support rod 233 and the positioning member 220 coincides with the hinge axis of the first hinged arm 231 and the positioning member 220; in the vertical direction of the second hinged arm 232, the support rod 233 and the hinge axis of the second hinged arm 232 and the hinge axis of the second hinged arm 232 and the first hinged arm 231 are spaced apart; the filling mechanism 100 is sleeved on the outside of the first hinged arm 231, the second hinged arm 232 and the support rod 233.

[0025] Specifically, the adjusting component 230 is composed of a first hinge arm 231, a second hinge arm 232, and a support rod 233. The hinged end of the connecting rod 210 is hinged to one end of the first hinge arm 231. One end of the positioning member 220 is connected to the first hinge arm 231 near the connecting rod 210, forming a front hinged base. The end of the first hinge arm 231 away from the connecting rod 210 is hinged to the second hinge arm 232. One end of the support rod 233 is hinged to the positioning member 220, and the other end is hinged to the second hinge arm 232, so that the first hinge arm 231, the second hinge arm 232, the support rod 233, and the positioning member 220 together form a multi-link linkage structure. The hinge center of the support rod 233 and the positioning member 220 coincides with the hinge center of the first hinge arm 231 and the positioning member 220, ensuring that the rotation of each component is synchronized and without interference or jamming. Along the vertical direction of the second hinged arm 232, the hinge positions of the support rod 233 and the second hinged arm 232, and the hinge positions of the second hinged arm 232 and the first hinged arm 231, are staggered. This allows the second hinged arm 232 to complete stable extension and bending movements under the joint traction and support of the first hinged arm 231 and the support rod 233. The filling mechanism 100 is fitted outside the first hinged arm 231, the second hinged arm 232, and the support rod 233, and deforms synchronously with the connecting rod structure. This allows it to closely conform to the irregular curved surface inside the nasal cavity, achieving the technical effects of uniform pressure, stable positioning, less tendency to shift, and stronger adaptability.

[0026] The drive mechanism 300 includes a support member 310, a drive rod 320, and a transmission member 330. The other end of the positioning member 220 is fixedly connected to the support member 310. One end of the transmission member 330 is hinged to the transmission end of the connecting rod 210, and the other end of the transmission member 330 is hinged to one end of the drive rod 320. The two ends of the transmission member 330 are hinged to the support member 310. The fixed connection between the other end of the positioning member 220 and the support member 310 forms a rigid connection between the adjustment mechanism and the drive mechanism 300, ensuring stable and secure power transmission. The hinged connection between the two ends of the transmission member 330 and the support member 310 forms a lever transmission structure centered on the support member 310. When the drive rod 320 is subjected to a pushing or pulling force, it drives the transmission component 330 to rotate around the support component 310, thereby pushing or pulling the transmission end of the connecting rod 210, causing the connecting rod 210 to rotate around the hinge end, ultimately driving the adjusting component 230 to complete actions such as extension, bending, forward movement, and backward movement. The entire transmission structure achieves smooth force transmission, transforming small external input forces into stable and controllable posture changes of the adjusting mechanism. The operator can easily control the adjustment range, avoiding over-adjustment or movement jamming, thus improving operational stability and device safety.

[0027] Specifically, the end of the first hinged arm 231 that is hinged to the connecting rod 210 is provided with a clearance groove 234 for the connecting rod 210 to rotate and avoid interference. The clearance groove 234 extends through the thickness of the first hinged arm 231, and the connecting rod 210 is hinged to both sides of the end of the clearance groove 234. The clearance groove 234 provides rotation space for the connecting rod 210, ensuring that the connecting rod 210 will not collide with the first hinged arm 231 or interfere with its movement when swinging around the hinge end, thus ensuring a smooth, continuous, and unhindered rotation process. The connecting rod 210 can swing freely within a set angle, stably driving the first hinged arm 231 to complete extension and bending, making the overall movement of the adjustment mechanism smoother, the posture adjustment more precise, and improving the reliability and structural durability of the device.

[0028] In this embodiment, the transmission member 330 includes a first hinge end 331 and a second hinge end 332 that are respectively hinged to the connecting rod 210 and the driving rod 320, and a third hinge end 333 that is hinged to the support member 310. The first hinge end 331 and the second hinge end 332 are spaced apart in the vertical direction. The third hinge end 333 is located on the horizontal side corresponding to the first hinge end 331 and the second hinge end 332, and is located between the first hinge end 331 and the second hinge end 332. The position of the third hinge end 333 corresponds to the connection position between the support member 310 and the positioning member 220. The first hinge end 331 is hinged to the connecting rod 210, and the second hinge end 332 is hinged to the driving rod 320. The two hinge ends are arranged vertically separately, so that the transmission member 330 can simultaneously receive power and transmit motion to the connecting rod 210. The third hinge end 333 is hinged to the support member 310, located on the same horizontal side as the first hinge end 331 and the second hinge end 332, and situated between the two hinge ends, forming a stable three-point support transmission structure. The position of the third hinge end 333 corresponds to the connection area between the support member 310 and the positioning member 220, aligning the transmission center with the fixed support center, reducing swaying, shaking, and lateral forces during transmission, and improving transmission efficiency. This structure ensures smooth rotation of the transmission member 330, uniform torque distribution, and accurate movement direction, preventing offset, shaking, or jamming during adjustment, guaranteeing higher precision in depth and bending adjustments, and more stable operation.

[0029] Specifically, an elliptical positioning head 340 is provided at the end of the second hinge arm 232 furthest from the first hinge arm 231. The positioning head 340 has a smooth, rounded shape and no sharp edges, serving as a guide during implantation into the nasal cavity, reducing friction, scratching, and irritation to the nasal mucosa, and improving the comfort and safety of the implantation process. The positioning head 340 enters the deep part of the nasal cavity first, helping the operator to visually determine the direction of advance and implantation position, preventing the device from shifting, twisting, or being inserted too deeply within the nasal cavity, achieving a minimally invasive, stable, and precise implantation effect, further improving operational convenience and patient tolerance.

[0030] The drive mechanism 300 includes a pushing component 350 and a guide post 360. The pushing component 350 is hinged to the other end of the drive rod 320, and the guide post 360 is horizontally positioned with one end connected to the support member 310. The pushing component 350 and the guide post 360 are slidably connected, allowing the pushing component 350 to reciprocate along the axial direction of the guide post 360. A paired adjustment mechanism provides drive control. The guide post 360 provides stable linear guidance for the pushing component 350, ensuring consistent movement direction and accurate stroke, preventing deviation or wobbling. This structure enables manual direct drive, intuitive stroke adjustment, precise adjustment, and simple operation, facilitating quick and stable control of the device implantation depth and bending angle by medical personnel.

[0031] Furthermore, the filling mechanism 100 includes a first airbag 110 and a second airbag 120. The first airbag 110 has a central cavity, and the second airbag 120 is fitted over the first airbag 110. The cavity forms a continuous air passage, allowing air to pass through normally while the airbag inflates to achieve hemostasis, preventing complete nasal cavity closure and significantly improving patient comfort. The second airbag 120, fitted over the first airbag 110, forms a double-layered airbag structure, each performing different functions. The first airbag 110 provides proximal support and initial positioning, offering a stable foundation; the second airbag 120 can bend and deform with the adjustment mechanism to better conform to the physiological curvature of the nasal cavity, achieving more precise and tighter compression hemostasis. The two airbags work together to distribute the pressure more evenly, ensuring hemostasis while reducing the risk of mucosal damage caused by excessive local pressure.

[0032] This system also includes multiple third airbags 130, arranged circumferentially around the first airbag 110. These third airbags can inflate or deflate independently or simultaneously as needed, providing multi-point, segmented conformal compression based on the shape and size of the nasal cavity and the location of bleeding points. This ensures a tighter fit and more even pressure between the filling mechanism 100 and the nasal cavity wall. The multi-airbag combination allows for targeted compression of bleeding areas, preventing insufficient pressure leading to incomplete hemostasis or concentrated pressure causing pain and discomfort. This achieves precise hemostasis, uniform pressure, and adaptation to the nasal anatomy of different individuals.

[0033] In this embodiment, the nasopharyngeal packing device also includes a handle 400 and a support platform 500. The support platform 500 is fixed to the upper end of the handle 400, and the support member 310 and the guide post 360 are both fixed to the support platform 500. The support platform 500 being fixed to the upper end of the handle 400, and the support member 310 and the guide post 360 being fixed to the support platform 500, forms a stable overall structure with the drive mechanism 300, the adjustment mechanism, and the grip. The handle 400 is easy for the operator to hold with one hand, provides stable force application, and is easy to operate; the support platform 500 provides a rigid mounting base for all internal moving parts, ensuring that the overall structure does not shake, deform, or shift during drive and adjustment. The overall layout is compact and reasonable, the grip is comfortable, the force is evenly distributed, and the operation is stable, making it particularly suitable for rapid use in clinical emergency scenarios, significantly improving the device's practicality, reliability, and operational safety.

[0034] The operation method of this technical solution is as follows: In use, the operator holds the handle 400 with one hand, using the support platform 500 as the operating support base. By pushing or pulling the pushing component 350, the pushing component 350 moves steadily in a straight line along the guide column 360. During the movement of the pushing component 350, the driving rod 320 moves synchronously, and the driving rod 320 transmits power to the transmission component 330, causing the transmission component 330 to rotate in a lever-like manner around the third hinge end 333 on the support component 310. When the transmission component 330 rotates, it drives the transmission end of the connecting rod 210 to move through the first hinge end 331, causing the connecting rod 210 to swing stably around the hinge end. The connecting rod 210 rotates without interference within the clearance groove 234 and transmits power to the first hinge arm 231. Under the unified support and positioning function of the positioning component 220, the first hinge arm 231, the second hinge arm 232 and the support rod 233 form a multi-link linkage structure, which simultaneously completes the extension, bending, forward or backward movements along the same hinge center, driving the front elliptical positioning head 340 to smoothly extend into the nasal cavity along the physiological curvature, realizing continuous and precise adjustment of the implantation depth and bending angle, so that the filling mechanism 100 reaches the target hemostasis area in the nasal cavity.

[0035] After the device is positioned, the operator inflates the first airbag 110, the second airbag 120, and the multiple third airbags 130 in sequence. After inflation, the first airbag 110 achieves initial positioning and overall support, and its internal cavity keeps the air passage unobstructed. The second airbag 120 bends and deforms with the adjustment mechanism, closely fitting the physiological curvature of the deep nasal cavity. The multiple third airbags 130 expand circumferentially along the first airbag 110, forming multi-point, zoned, and uniform conformal pressure, so that the filling mechanism 100 as a whole fits fully against the inner wall of the nasal cavity, achieving stable and reliable pressure hemostasis in the bleeding area.

[0036] After the treatment is completed, the operator first deflates the third airbag 130, the second airbag 120, and the first airbag 110 in sequence to detach the airbags from the nasal cavity wall. Then, the operator pulls or pushes the pushing component 350 in the opposite direction, which drives the filling mechanism 100 to retract and straighten smoothly through the linkage of the drive mechanism 300 and the adjustment mechanism. Finally, the entire device is slowly removed from the nasal cavity.

[0037] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A nasopharyngeal packing device, characterized in that, The nasopharyngeal packing device includes: A filling mechanism, wherein the filling mechanism is provided with a through hole for ventilation, and the filling mechanism is used to fill and abut against the nasal cavity; An adjustment mechanism is provided, comprising a connecting rod, a positioning member, and an adjustment component; the connecting rod includes a transmission end and a hinge end, the hinge end of the connecting rod is hinged to one end of the adjustment component, and one end of the positioning member is hinged to the side of the adjustment component closest to the connecting rod. A driving mechanism is connected to the connecting rod in a transmission manner, and one end of the positioning member is fixed to the driving mechanism; The filling mechanism is sleeved on the outside of the adjusting member, and the driving mechanism is used to drive the transmission end of the connecting rod to rotate around the hinge end.

2. The nasopharyngeal packing device as described in claim 1, characterized in that, The adjusting component includes a first hinge arm, a second hinge arm, and a support rod; the hinge end of the connecting rod is hinged to one end of the first hinge arm, and one end of the positioning member is hinged to the side of the first hinge arm closest to the connecting rod. The other end of the first hinged arm is hinged to one end of the second hinged arm, one end of the support rod is hinged to the positioning member, and the other end of the support rod is hinged to one end of the second hinged arm; The hinge axis of the support rod and the positioning member coincides with the hinge axis of the first hinge arm and the positioning member. In the vertical direction of the second hinge arm, the support rod is spaced apart from the hinge axis of the second hinge arm and from the hinge axis of the first hinge arm. The filling mechanism is sleeved on the outside of the first hinge arm, the second hinge arm, and the support rod.

3. The nasopharyngeal packing device as described in claim 2, characterized in that, The driving mechanism includes a support member, a driving rod member, and a transmission member, and the other end of the positioning member is fixedly connected to the support member; One end of the transmission component is hinged to the transmission end of the connecting rod, the other end of the transmission component is hinged to one end of the driving rod, and the two ends of the transmission component are hinged to the support component.

4. The nasopharyngeal packing device as described in claim 2, characterized in that, The first hinged arm is provided with a clearance groove at one end where it is hinged to the connecting rod, allowing the connecting rod to rotate and avoid it. The clearance groove extends through the thickness of the first hinged arm, and the connecting rod is hinged to both ends of the clearance groove.

5. The nasopharyngeal packing device as described in claim 4, characterized in that, The transmission component includes a first hinge end and a second hinge end that are respectively hinged to the connecting rod and the driving rod, and a third hinge end that is hinged to the support member. The first hinge end and the second hinge end are spaced apart in the vertical direction. The third hinge end is located on the horizontal side corresponding to the first hinge end and the second hinge end, and the third hinge end is located between the first hinge end and the second hinge end. The third hinge end is located at the connection point between the support member and the positioning member.

6. The nasopharyngeal packing device as described in claim 2, characterized in that, The second hinge arm has an elliptical positioning head at the end furthest from the first hinge arm.

7. The nasopharyngeal packing device as described in claim 3, characterized in that, The driving mechanism further includes a pushing component and a guide column. The pushing component is hinged to the other end of the driving rod, and the guide column is horizontally arranged with one end connected to the support member. The pushing member is slidably connected to the guide post, and the pushing member can reciprocate along the axial direction of the guide post.

8. The nasopharyngeal packing device as described in claim 1, characterized in that, The filling mechanism includes a first airbag and a second airbag. The first airbag has a central cavity, and the second airbag is sleeved on the outside of the first airbag.

9. The nasopharyngeal packing device as described in claim 8, characterized in that, It also includes multiple third airbags, which are arranged circumferentially along the first airbag.

10. The nasopharyngeal packing device as described in claim 3, characterized in that, The nasopharyngeal packing device also includes a handle and a support platform. The support platform is fixed to the upper end of the handle, and the support member and the guide post are both fixed to the support platform.

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