Nasal tampon hemostat

Abstract

The application provides a nasal cavity packing hemostat, which comprises a packing air bag, a containing tube, an operating rod, a gas guide tube, a one-way valve assembly, a easy-to-tear assembly and a retreat prevention unit. The nasal cavity packing hemostat has a compact overall structure, is convenient to operate and can better pack the nasal cavity of a patient, so that the treatment of a patient with severe nose bleeding can be realized. When the nasal cavity packing hemostat needs to be left in the nasal cavity of the patient, the one-way valve assembly and the gas guide tube do not need to be fixed by using adhesive tape, so that the inconvenience caused by bonding the one-way valve assembly and the gas guide tube on the cheek of the patient and the problem of overall falling off can be effectively avoided.

Description

Technical Field

[0001] This invention relates to the field of clinical medical device technology, specifically to a nasal packing hemostatic device. Background Technology

[0002] The main causes of nosebleeds include trauma, dry nasal mucosa, taking medications that inhibit blood clotting, nasal infection, or other reasons. Currently, in clinical practice, nosebleeds are mainly treated by packing the nasal cavity or sinus lesions with hemostatic materials such as gauze strips, polymer hemostatic sponges, or inflatable balloons to achieve hemostasis through physical pressure.

[0003] Nasal packing devices with inflatable cuffs typically include an inflatable cuff, a connecting tubing, and a one-way valve. During use, the inflatable cuff is inserted into the patient's nasal cavity. Healthcare workers then use a syringe connected to the one-way valve to inflate the cuff. The connecting tubing extends the connection between the one-way valve and the inflatable cuff, facilitating the inflation process. After inflation, especially for patients with severe bleeding, the cuff needs to remain in the nasal cavity for 1 to 5 days. Since the connecting tubing and one-way valve are exposed outside the inflatable cuff, healthcare workers usually use tape to secure them to the patient's cheek.

[0004] However, the adhesive tape has a limited adhesion range, which can easily cause it to lose its stickiness, leading to the connection hose and one-way valve coming off. In severe cases, it can even cause the inflatable airbag to fall out of the nasal cavity. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the purpose of this invention is to provide a nasal packing hemostatic device to improve the ease of operation and prevent dislodgement during the indwelling process.

[0006] To achieve the above objectives, the present invention provides a nasal packing hemostatic device, comprising a packing balloon; a receiving tube disposed within the packing balloon, the receiving tube having an open end and a closed end, the outer wall of the receiving tube being sealed to the opening of the packing balloon, and an end cap provided at the open end of the receiving tube; an operating rod made of rigid material and disposed within the receiving tube, one end of the operating rod being close to the closed end of the receiving tube, the other end of the operating rod extending beyond the end cap, and an air guiding channel being provided within the operating rod; and an air guiding tube having a bendable structure and disposed within the receiving tube, the two ends of the air guiding tube being respectively connected to the… The device comprises: a closed end of a receiving tube and an operating rod; an air guide tube connecting the stuffing airbag and the air guide channel; a one-way valve assembly disposed at the end of the operating rod extending beyond the end cap; the one-way valve assembly communicating with the air guide channel and controlling one-way flow between the stuffing airbag and the outside; an easy-tear assembly connecting the end cap and the one-way valve assembly; the easy-tear assembly configured to secure the one-way valve assembly and the operating rod, and separable from the one-way valve assembly and the end cap; and a backstop unit preventing the operating rod from detaching from the receiving tube after it moves toward the closed end of the receiving tube.

[0007] Preferably, the air guide tube includes a first tube body and a second tube body. The first tube body is made of a rigid material and extends along the length of the receiving tube. One end of the first tube body is connected to the filling airbag, and the other end of the first tube body is close to the end cap. The second tube body is made of a soft material. One end of the second tube body is connected to the end of the first tube body near the end cap, and the other end of the second tube body is connected to the operating rod after being bent twice. The second tube body is connected to the air guide channel.

[0008] Preferably, the one-way valve assembly includes: a housing connected to the operating lever, the length direction of the housing being perpendicular to the length direction of the operating lever; a first through hole and a second through hole coaxially connected within the housing; the inner diameter of the first through hole being larger than the inner diameter of the second through hole; a flange being provided at the connection between the first through hole and the second through hole; and the first through hole communicating with the air guide channel; a support tube coaxially disposed in the first through hole; an annular support being provided on the outer wall of the support tube; multiple support feet being provided on the outer wall of the annular support; and a sliding rod slidably engaged with the... Inside the support tube, one end of the slide rod extends into the second through hole; a connector is disposed in the second through hole and connected to the slide rod, the outer circumferential wall of the connector is provided with an annular step extending outward, and the connector has multiple air holes through it, the length direction of the air holes being parallel to the axial direction of the second through hole; a valve core is fixedly disposed on the slide rod and located in the first through hole, the diameter of the valve core being larger than the inner diameter of the second through hole; and a return spring is disposed outside the slide rod, the two ends of the return spring being respectively connected to the annular support and the valve core, the return spring being used to press the valve core against the flange.

[0009] Preferably, the easy-tear assembly includes two easy-tear blocks, which are respectively disposed on both sides of the operating lever. The easy-tear blocks are respectively connected to the housing and the end cap, and a weakening groove is provided at the connection between the easy-tear blocks and the housing and the end cap.

[0010] Preferably, an indicator airbag is provided at one end of the housing opposite to the second through hole. The indicator airbag is connected to the first through hole. A third tube is provided on the indicator airbag. The third tube is connected to the operating rod and is connected to the air guide channel.

[0011] Preferably, the anti-reverse unit includes a first anti-reverse member and a second anti-reverse member. The first anti-reverse member is disposed on the outer wall of the operating rod and close to the second tube body. The first anti-reverse member extends radially along the operating rod and then tilts towards the one-way valve assembly. The first anti-reverse member is made of a soft material. The second anti-reverse member is disposed on the inner wall of the receiving tube. The second anti-reverse member extends radially along the receiving tube and then tilts towards the side away from the end cap. The second anti-reverse member is made of a hard material. The inner side of the first anti-reverse member can abut against the side of the second anti-reverse member away from the end cap.

[0012] Preferably, the backstop unit is provided in multiple sets.

[0013] The beneficial effects of this invention are:

[0014] This invention discloses a nasal packing hemostatic device with a compact overall structure, which is easy to operate and can effectively pack the patient's nasal cavity, thereby achieving the treatment of patients with severe epistaxis. When it is necessary to leave the nasal packing hemostatic device in the patient's nasal cavity, the air tube, operating rod and one-way valve assembly can be stored without the need to use tape to fix the one-way valve assembly and air tube, thus effectively avoiding the inconvenience caused by sticking the one-way valve assembly and air tube to the patient's cheek, as well as the problem of the whole device falling off. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0016] Figure 1 This is a schematic diagram of the structure of a nasal packing hemostat (in an uninflated state) provided in an embodiment of the present invention;

[0017] Figure 2 for Figure 1 A cross-sectional view under the condition;

[0018] Figure 3 A schematic diagram of the interior of the airbag and its containment tube;

[0019] Figure 4 This is a structural diagram of the easy-tear component;

[0020] Figure 5 A schematic diagram of the structure for pulling out the operating rod and the second tube;

[0021] Figure 6 for Figure 5 A cross-sectional view under the condition;

[0022] Figure 7 for Figure 6 A magnified view of a section at point A in the middle;

[0023] Figure 8 This is a schematic diagram of the structure of the first anti-reverse component;

[0024] Figure 9 This is a schematic diagram of the second anti-reverse component;

[0025] Figure 10 This is a cross-sectional schematic diagram showing the cooperation between the first anti-reverse component and the second anti-reverse component;

[0026] Figure label:

[0027] 10-Inflatable airbag;

[0028] 20 - Receiving tube; 21 - End cap;

[0029] 30 - Control lever, 31 - Air guide channel;

[0030] 41-the first tube body, 42-the second tube body;

[0031] 50-One-way valve assembly, 51-Housing, 511-First through hole, 512-Second through hole, 513-Flange, 52-Support tube, 521-Annular support, 53-Slide rod, 54-Connector, 541-Annular step, 542-Air hole, 55-Valve core, 56-Reset spring;

[0032] 60 - Easy-tear component, 61 - Easy-tear block, 611 - Weakening groove;

[0033] 70 - Anti-reverse unit, 71 - First anti-reverse component, 72 - Second anti-reverse component;

[0034] 80 - Indicator airbag, 81 - Third tube body. Detailed Implementation

[0035] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0036] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application should have the ordinary meaning as understood by those skilled in the art to which this invention pertains.

[0037] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0038] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly defined.

[0039] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0040] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0041] like Figure 1-10 As shown, in one embodiment of the present invention, a nasal packing hemostatic device is provided, including a packing balloon 10, a receiving tube 20, an operating rod 30, an air guide tube, a one-way valve assembly 50, an easy-tear assembly 60, and a backstop unit 70.

[0042] The receiving tube 20 is disposed inside the filling airbag 10. The receiving tube 20 has an open end and a closed end structure. The outer wall of the receiving tube 20 is sealed to the opening of the filling airbag 10. An end cap 21 is provided at the open end of the receiving tube 20. The operating rod 30 is made of rigid material and is disposed inside the receiving tube 20. One end of the operating rod 30 is close to the closed end of the receiving tube 20, and the other end of the operating rod 30 extends out of the end cap 21. An air guide channel 31 is provided inside the operating rod 30.

[0043] The air guide tube is flexible and located within the receiving tube 20. Its two ends are connected to the closed end of the receiving tube 20 and the operating rod 30, respectively. The air guide tube connects the tamping airbag 10 and the air passage 31. A one-way valve assembly 50 is located at the end of the operating rod 30 extending beyond the end cap 21. The one-way valve assembly 50 communicates with the air passage 31 and controls one-way communication between the tamping airbag 10 and the outside environment. An easy-tear assembly 60 connects the end cap 21 and the one-way valve assembly 50. The easy-tear assembly 60 is configured to secure the one-way valve assembly 50 and the operating rod 30 and can be detached from both. A stop unit 70 prevents the operating rod 30 from detaching from the receiving tube 20 after it moves towards the closed end of the receiving tube 20.

[0044] When using this nasal packing hemostat, medical personnel first tear off the easy-tear component 60 to separate it from the one-way valve assembly 50 and the end cap 21. After removing the restriction of the easy-tear component 60, medical personnel can pull the operating rod 30 out of the receiving tube 20. After pulling out the operating rod 30, the packing cuff 10 is inserted into the patient's nasal cavity, and the end cap 21 is exposed outside the patient's nostril. Then, a syringe is connected to the one-way valve assembly 50, and air is injected into the one-way valve assembly 50 using the syringe. The air passes through the air delivery channel 31 and the air delivery tube in sequence and enters the space between the packing cuff 10 and the receiving tube 20, thereby realizing the inflation operation of the packing cuff 10.

[0045] During the inflation process, the nasal packing 10 will adapt to the internal structure of the nasal cavity and deform accordingly. Furthermore, the inflated nasal packing 10 will compress the bleeding wound in the nasal cavity, thereby achieving the hemostasis effect of the nasal cavity.

[0046] After completing the above operations, the medical staff reinserts the operating lever 30 into the receiving tube 20. Since the operating lever 30 is made of a rigid material, while the airway can be bent, the operating lever 30 will cause the airway to retract into the receiving tube 20 during insertion. As the operating lever 30 moves towards the closed end of the receiving tube 20, the anti-retraction unit 70 prevents it from detaching from the receiving tube 20. Thus, the operating lever 30 is locked by the anti-retraction unit 70 and will not fall out of the receiving tube 20. This allows for the retraction of the airway, operating lever 30, and one-way valve assembly 50, which is located outside the patient's nostrils, eliminating the need to use tape to attach the one-way valve assembly 50 to the patient's cheek.

[0047] In this embodiment, the nasal packing hemostat uses an easy-tear component 60 to fix the position of the one-way valve assembly 50 and the operating rod 30. This prevents the operating rod 30 from moving into the receiving tube 20 due to misoperation during transportation or disassembly, thus avoiding the locking unit 70 from locking it. Simultaneously, by designing the operating rod 30 and the air tube, after tearing the easy-tear component 60, medical personnel can pull the operating rod 30 and part of the air tube out of the receiving tube 20. This extends the length of the connection passage between the one-way valve assembly 50 and the packing cuff 10, making it easier for medical personnel to connect a syringe to the one-way valve assembly 50 to inflate the packing cuff 10.

[0048] Furthermore, after inflation is complete, by designing the operating rod 30 as a rigid structure, during the insertion of the operating rod 30 into the receiving tube 20, the operating rod 30 will pull the air delivery tube, causing it to be inserted into the receiving tube 20 along with the operating rod 30. In this way, the operating rod 30 and the air delivery tube are retracted. After the operating rod 30 is inserted, under the action of the anti-retraction unit 70, the operating rod 30 cannot slide out of the receiving tube 20, thus eliminating the need to use tape to stick the one-way valve assembly 50 to the patient's cheek, reducing the occurrence of the nasal packing hemostat falling off.

[0049] In summary, this nasal packing hemostat has a compact overall structure, is easy to operate, and can effectively pack the patient's nasal cavity, thereby achieving the treatment of patients with severe epistaxis. When it is necessary to leave the nasal packing hemostat in the patient's nasal cavity, the air tube, operating rod 30, and one-way valve assembly 50 can be stored without the need to use tape to fix the one-way valve assembly 50 and the air tube, thus effectively avoiding the inconvenience caused by sticking the one-way valve assembly 50 and the air tube to the patient's cheek, as well as the problem of the whole device falling off.

[0050] In one embodiment, the air guide tube includes a first tube body 41 and a second tube body 42. The first tube body 41 is made of a rigid material and extends along the length of the receiving tube 20. One end of the first tube body 41 is connected to the filling airbag 10, and the other end of the first tube body 41 is close to the end cap 21. The second tube body 42 is made of a soft material. One end of the second tube body 42 is connected to the end of the first tube body 41 near the end cap 21, and the other end of the second tube body 42 is connected to the operating rod 30 after being bent twice. The second tube body 42 is connected to the air guide channel 31.

[0051] By designing the air delivery tube as a first tube 41 and a second tube 42, since the first tube 41 is a rigid tube structure and the second tube 42 is a flexible tube structure, and the position of the second tube 42 within the receiving tube 20 is between the first tube 41 and the operating rod 30, after the medical staff pulls out the operating rod 30, the operating rod 30 will pull the second tube 42 out of the receiving tube 20 together, while the first tube 41 remains inside the receiving tube 20. In this way, the length of the connection passage between the one-way valve assembly 50 and the tampon 10 is extended, which makes it easier for medical staff to use a syringe to connect to the one-way valve assembly 50, thereby completing the inflation operation of the tampon 10.

[0052] Since the two ends of the second tube 42, which has a flexible tube structure, are respectively connected to the first tube 41, which has a rigid tube structure, and the operating rod 30, the two ends of the second tube 42 are restricted. Therefore, after inflation, when the operating rod 30 is inserted into the receiving tube 20, the operating rod 30 will pull the second tube 42 so that it is inserted into the receiving tube 20 along with the operating rod 30. This facilitates the synchronous retraction of the operating rod 30 and the second tube 42, so that the second tube 42 does not protrude from the end cap 21.

[0053] In one embodiment, the one-way valve assembly 50 includes a housing 51, a support tube 52, a slide rod 53, a connector 54, a valve core 55, and a return spring 56. The housing 51 is connected to the operating rod 30, and the length direction of the housing 51 is perpendicular to the length direction of the operating rod 30. The housing 51 has a first through hole 511 and a second through hole 512 that are coaxial and communicate with each other. The inner diameter of the first through hole 511 is larger than the inner diameter of the second through hole 512. A flange 513 is provided at the connection between the first through hole 511 and the second through hole 512. The first through hole 511 communicates with the air guide channel 31. The support tube 52 is coaxially disposed in the first through hole 511. An annular support 521 is provided on the outer wall of the support tube 52, and multiple feet (not shown in the figures) are provided on the outer wall of the annular support 521. The feet are connected to the inner wall of the first through hole 511. The slide rod 53 is slidably fitted inside the support tube 52, and one end of the slide rod 53 extends into the second through hole 512.

[0054] A connector 54 is disposed within the second through hole 512 and connected to the slide rod 53. The circumferential outer wall of the connector 54 has an extended annular step 541. Multiple air holes 542 extend through the connector 54, with the length direction of the air holes 542 parallel to the axial direction of the second through hole 512. A valve core 55 is fixedly mounted on the slide rod 53 and located within the first through hole 511. The diameter of the valve core 55 is larger than the inner diameter of the second through hole 512. A return spring 56 passes outside the slide rod 53. The two ends of the return spring 56 are connected to an annular support 521 and the valve core 55, respectively. The return spring 56 is used to press the valve core 55 against the flange 513.

[0055] When the tampon 10 needs to be inflated, medical personnel insert a syringe into the second through hole 512. The syringe nozzle is inserted outside the connector 54 and abuts against the annular step 541. As the syringe moves toward the first through hole 511, the connector 54 moves the slide rod 53 and the valve core 55. In this way, the valve core 55 disengages from the flange 513 and compresses the return spring 56. At this time, since there are multiple air holes 542 through the connector 54, the syringe, air holes 542, second through hole 512, first through hole 511, air channel 31, second tube 42, first tube 41 and tampon 10 are connected. During the injection process, air continuously enters the tampon 10, causing the tampon 10 to expand.

[0056] After inflation, medical staff remove the syringe from the second through hole 512. Under the elastic force of the return spring 56, the valve core 55 will be pushed back against the flange 513. In this way, the air in the airbag 10 will not escape.

[0057] In one embodiment, the easy-tear assembly 60 includes two easy-tear blocks 61, which are respectively disposed on both sides of the operating lever 30. The easy-tear blocks 61 are connected to the housing 51 and the end cap 21, respectively. Weakening grooves 611 are respectively provided at the connection points between the easy-tear blocks 61 and the housing 51 and the end cap 21. By using the easy-tear assembly 60 to fix the position of the one-way valve assembly 50 and the operating lever 30, the situation where the operating lever 30 moves into the receiving tube 20 due to misoperation during transportation or disassembly is avoided, thus preventing the anti-reverse unit 70 from locking it.

[0058] In one embodiment, an indicator balloon 80 is provided at the end of the housing 51 opposite to the second through hole 512. The indicator balloon 80 communicates with the first through hole 511. A third tube 81 is provided on the indicator balloon 80, which is connected to the operating rod 30 and communicates with the air channel 31. The indicator balloon 80 is also located outside the patient's nasal cavity, and the inflation pressure of the nasal packing balloon 10 can be observed and judged through the indicator balloon 80. When it is necessary to remove the nasal packing balloon 10 from the patient's nasal cavity, medical staff only need to cut the third tube 81. In this way, the air inside the nasal packing balloon 10 will escape from the third tube 81, thereby facilitating the removal of the entire nasal packing hemostat.

[0059] In one embodiment, multiple sets of anti-reverse units 70 are provided. Each anti-reverse unit 70 includes a first anti-reverse member 71 and a second anti-reverse member 72. The first anti-reverse member 71 is disposed on the outer wall of the operating lever 30 and close to the second tube body 42. The first anti-reverse member 71 extends radially along the operating lever 30 and then tilts toward the one-way valve assembly 50. The first anti-reverse member 71 is made of a soft material. The second anti-reverse member 72 is disposed on the inner wall of the receiving tube 20. The second anti-reverse member 72 extends radially along the receiving tube 20 and then tilts toward the side away from the end cap 21. The second anti-reverse member 72 is made of a hard material. The inner side of the first anti-reverse member 71 can abut against the side of the second anti-reverse member 72 away from the end cap 21.

[0060] During the insertion of the operating lever 30, when the inner side of the first stopper 71 (i.e. the side of the first stopper 71 facing away from the second tube 42) abuts against the side of the second stopper 72 facing the end cap 21, the first stopper 71 will deform under the abutment action of the second stopper 72 because the first stopper 71 is made of soft material. The first stopper 71 will stick to the outer wall of the operating lever. After the first stopper 71 has completely passed through the second stopper 72, the first stopper 71 will return to its original shape.

[0061] When the operating lever 30 moves toward the end cap 21, the inner side of the first stop 71 abuts against the side of the second stop 72 away from the end cap 21. Thus, under the constraint of the second stop 72, the operating lever 30 and the one-way valve assembly 50 will not easily fall off. Of course, when it is necessary to remove the nasal packing 10 from the patient's nasal cavity, medical personnel can also forcefully pull out the operating lever 30, causing the first stop 71 to tilt away from the end cap 21. In this way, the first stop 71 can pass through the second stop 72. After the second tube 42, the operating lever 30, and the one-way valve assembly 50 are removed, medical personnel can also deflate the nasal packing 10 by using a syringe to aspirate the air from the nasal packing 10.

[0062] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A nasal tampon hemostat, characterized in that: The utility model relates to a kind of inflatable airbag, comprising: a filling airbag; a containing tube arranged in the filling airbag, the containing tube is open at one end, closed at one end structure, the outer wall of the containing tube is sealedly connected with the opening of the filling airbag, and the open end of the containing tube is provided with an end cap; an operating rod made of hard material and arranged in the containing tube, one end of the operating rod is close to the closed end of the containing tube, the other end of the operating rod extends out of the end cap, and a gas guide channel is arranged in the operating rod; a gas guide tube arranged in the containing tube and having a bendable structure, both ends of the gas guide tube are connected with the closed end of the containing tube and the operating rod respectively, and the gas guide tube is communicated with the filling airbag and the gas guide channel respectively; a one-way valve assembly arranged at one end of the operating rod extending out of the end cap, the one-way valve assembly is communicated with the gas guide channel, and the one-way valve assembly is used for controlling one-way communication between the filling airbag and the outside world; a tearable assembly connected with the end cap and the one-way valve assembly respectively, the tearable assembly is configured to fix the one-way valve assembly and the operating rod, and can be separated from the one-way valve assembly and the end cap; and a retreat stopping unit used for preventing the operating rod from being separated from the containing tube after moving towards the closed end of the containing tube.

2. The nasal packing hemostat of claim 1, wherein: The gas guide tube comprises a first tube body made of hard material, the first tube body extends along the length direction of the containing tube, one end of the first tube body is communicated with the filling airbag, and the other end of the first tube body is close to the end cap; the second tube body is made of soft material, one end of the second tube body is communicated with one end of the first tube body close to the end cap, the other end of the second tube body is connected with the operating rod after being bent twice, and the second tube body is communicated with the gas guide channel.

3. The nasal packing hemostat of claim 2, wherein: The one-way valve assembly comprises: a housing connected with the operating rod, the length direction of the housing is perpendicular to the length direction of the operating rod, a first through hole and a second through hole communicated and coaxial are arranged in the housing, the inner diameter of the first through hole is larger than the inner diameter of the second through hole, a flange is arranged at the connection between the first through hole and the second through hole, and the first through hole is communicated with the gas guide channel; a support tube coaxially arranged in the first through hole, an annular support is arranged on the outer wall of the support tube, a plurality of supporting legs are arranged on the outer wall of the annular support, and the supporting legs are connected with the inner wall of the first through hole; a slide rod slidingly fitted in the support tube, one end of the slide rod extends into the second through hole; a connecting head arranged in the second through hole and connected with the slide rod, an annular step is formed on the circumferential outer wall of the connecting head, a plurality of air holes are formed in the connecting head, and the length direction of the air holes is parallel to the axial direction of the second through hole; a valve core fixedly arranged on the slide rod and located in the first through hole, the diameter of the valve core is larger than the inner diameter of the second through hole; and a reset spring arranged outside the slide rod, both ends of the reset spring are connected with the annular support and the valve core respectively, and the reset spring is used for making the valve core abut against the flange.

4. The nasal packing hemostat of claim 3, wherein: The tearable assembly comprises two tearable blocks, which are arranged on two sides of the operating rod respectively, and are connected with the shell and the end cover respectively, and the connection positions of the tearable blocks with the shell and the end cover are respectively provided with weakening grooves.

5. The nasal packing hemostat of claim 3, wherein: An indicating air bag is arranged at one end of the shell away from the second through hole, the indicating air bag is communicated with the first through hole, a third pipe body is arranged on the indicating air bag, the third pipe body is connected with the operating rod and communicated with the air guide channel.

6. A nasal packing tampon according to any one of claims 2-5, characterized in that: The retreat stopping unit comprises a first retreat stopping piece and a second retreat stopping piece, the first retreat stopping piece is arranged on the outer wall of the operating rod and close to the second pipe body, the first retreat stopping piece extends along the radial direction of the operating rod and then inclines to the one-way valve assembly, and the first retreat stopping piece is made of soft material; The second retreat stopping piece is arranged on the inner wall of the containing pipe, the second retreat stopping piece extends along the radial direction of the containing pipe and then inclines to the one away from the end cover, the second retreat stopping piece is made of hard material, and the inner side of the first retreat stopping piece can abut against the side of the second retreat stopping piece away from the end cover.

7. The nasal packing hemostat of claim 6, wherein: The retreat stopping unit is provided with multiple groups.

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