Posterior nostril filling device

Abstract

The invention discloses a posterior nostril filling device, which comprises a catheter, the filling assembly is arranged on the catheter, and the first end of the filling assembly is attached to the nasopharynx part in a set state; the limiting mechanism is arranged on the outer wall of the guide pipe, and the limiting mechanism moves in a preset range along the side wall of the guide pipe. After the air bag reaches the functional position, the device is kept at the fixed position for a long time through the limiting stopper on the outer side of the anterior nostril, the air bag is prevented from moving to block the airway, meanwhile, the traditional complex operation of fixing the device on the head through a rope or a silk thread is abandoned, and meanwhile the device is kept at the preset position through the anterior nostril limiting stopper; the air bag is prevented from sliding to the throat to cause airway obstruction and even suffocation.

Description

Technical Field

[0001] The present invention relates to the technical field of nasal packing devices, and in particular to a posterior nasal packing device. Background Art

[0002] Nosebleed is the most common emergency disease in the otolaryngology department. Due to the special morphology of the nasal cavity, it is not suitable for suturing, and packing is usually required to stop the bleeding. Depending on the location of the bleeding, the packing method can be divided into anterior nasal packing and posterior nasal packing. The latter is mainly nasopharyngeal bleeding. Common diseases include nasopharyngeal hemangioma, nasopharyngeal venous plexus bleeding (mainly in the elderly), and massive bleeding from nasopharyngeal carcinoma. Because the nasopharynx is located deep and at the transition point between the nasal cavity and the pharyngeal cavity from narrow to wide, it is difficult for the compression body to accurately reach and firmly remain in the nasopharynx by packing the anterior nasal cavity.

[0003] Before traditional posterior nasal packing, a soft rubber tube needs to be inserted from the anterior nostril into the nasal cavity, passed through the patient's pharynx, and pulled out from the mouth. Then, a gauze ball with a thread is fixed on the rubber tube, and the rubber tube is pulled out from the anterior nostril, so that the gauze ball reaches the nasopharynx from the mouth, and the threaded part is pulled out of the anterior nostril, and finally fixed on the patient's head. This method is cumbersome to operate, requires high technical skills from doctors, and is difficult to succeed in one go in the case of emergency bleeding. Patients with severe bleeding from nasopharyngeal cancer often die from excessive blood loss or suffocation caused by aspiration of blood. On the other hand, the gauze ball used for packing with traditional devices is fixed to the patient's head with a thread, which is complicated to operate, and once it is not fixed firmly, it may slide from the nasopharynx to the throat, blocking the airway and causing serious complications. In addition, the necessary instruments and items need to be prepared before packing, which is time-consuming and laborious. Summary of the invention

[0004] The purpose of the present invention is to provide a posterior nasal packing device to solve the problems of the existing posterior nasal packing device, such as complicated packing operation, easy to slip toward the throat, block the airway and cause serious complications.

[0005] To achieve the above object, the present invention is implemented through the following technical solutions:

[0006] In one aspect, the present invention provides a posterior nasal packing device, comprising:

[0007] catheter;

[0008] A packing assembly is arranged on the catheter, wherein a first end of the packing assembly is in contact with the nasopharynx in a set state;

[0009] The limiting mechanism is arranged on the outer wall of the conduit, and the limiting mechanism moves within a predetermined range along the side wall of the conduit.

[0010] Preferably, the packing assembly comprises:

[0011] An airbag, which is located at the first end of the packing assembly, is passed into the nasopharynx in a contracted state, and after the airbag is completely passed into the nasopharynx, the airbag is in an expanded state and fits with the nasopharynx;

[0012] an airbag inlet located at the second end of the stuffing assembly, through which fluid is injected into the airbag;

[0013] A connecting pipeline is arranged on the side wall of the catheter and is used for connecting the airbag and the airbag inlet.

[0014] Preferably, the fluid introduced into the airbag includes any one of air and physiological saline.

[0015] Preferably, a one-way valve structure is provided at the airbag inlet, which is used to prevent overflow of the airbag inlet when fluid is injected.

[0016] Preferably, the one-way valve structure comprises:

[0017] Sleeve;

[0018] A connecting port, located at the first end of the sleeve and connected to the connecting pipeline;

[0019] A fixing plate, which is arranged at the second end of the sleeve, and a through hole is formed on the fixing plate;

[0020] A spring is disposed in the sleeve, one end of the spring is connected to a baffle, the baffle abuts against the fixing plate, and the baffle covers the through hole;

[0021] A connecting cylinder, a first end of which is disposed in the through hole;

[0022] A fluid injection interface is arranged at the second end of the connecting tube and is used for injecting fluid into the airbag inlet.

[0023] Preferably, the spring is a compression spring, and in its initial state, the spring pushes the baffle to abut against the side wall of the fixing plate.

[0024] Preferably, the limiting mechanism is arranged between the airbag and the airbag inlet.

[0025] Preferably, the limiting mechanism comprises:

[0026] a threaded section disposed on an outer side wall of the conduit;

[0027] A front nostril stopper, which is sleeved on the threaded section;

[0028] A limiting nut is connected to the threaded section and is located on one side of the anterior nostril limiter.

[0029] Preferably, the anterior nares limiter is configured as a hemispherical structure, and one end of the spherical surface is located on a side close to the airbag.

[0030] Preferably, the conduit is a curved structure with a smooth outer wall.

[0031] On the other hand, the present invention also provides a sterile kit for posterior nasal packing, comprising: the above-mentioned posterior nasal packing device, a syringe, paraffin oil cotton balls, gun-shaped forceps, oil gauze strips and sterile gloves.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] The present invention provides a posterior nasal packing device, which can be quickly inserted into the nasal cavity from the anterior nostril to reach the nasopharynx when in use, so that the airbag is in an inflated state, which plays a role in compressing and stopping bleeding. At the same time, the anterior nasal limiter is used to properly keep the device in a predetermined position to prevent the airbag from sliding toward the throat to cause airway obstruction or even suffocation. The posterior nasal packing device of the present invention is simple to operate, abandons the traditional repeated packing method through the nasal cavity and oral cavity, and has better patient tolerance; the device is safe and stable, and after the airbag reaches the functional position, the limiter on the outside of the anterior nostril can keep the device in a fixed position for a long time to prevent the airbag from moving and blocking the airway, and at the same time abandons the traditional complicated operation of fixing it to the head with ropes or silk threads; the instruments and items required for packing are included in the form of a sterile set, which saves time and effort, and can use the limited time of emergency more for therapeutic operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for the description. Obviously, the drawings described below are an embodiment of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work:

[0035] Figure 1 A schematic diagram of a posterior nasal packing device provided in one embodiment of the present invention;

[0036] Figure 2 A schematic diagram of an airbag expansion state provided by an embodiment of the present invention;

[0037] Figure 3 A schematic diagram of an airbag inlet structure provided in one embodiment of the present invention.

[0038] Explanation of the reference numerals: 1-catheter, 101-inner opening of the catheter, 102-outer opening of the catheter, 201-airbag, 202-connecting pipeline, 203-airbag inlet, 301-front nostril limiter, 302-limiting nut, 303-threaded section, 2031-connecting port, 2032-spring, 2033-sleeve, 2034-baffle, 3035-fixing plate, 2036-connecting tube, 2037-fluid injection interface. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1-3 The posterior nasal packing device proposed in the present invention is further described in detail with specific implementation methods. According to the following description, the advantages and features of the present invention will become clearer. It should be noted that the drawings are in a very simplified form and are not in precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the implementation methods of the present invention. In order to make the purposes, features and advantages of the present invention more obvious and easy to understand, please refer to the drawings. It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no technical substantive significance. Any structural modification, change in proportional relationship or adjustment of size, without affecting the effects that can be produced by the present invention and the purposes that can be achieved, should still fall within the scope of the technical content disclosed by the present invention.

[0040] This embodiment mainly solves the problems of the existing posterior nasal packing device, such as complicated packing operation, easy slipping to the throat, and blocking the airway to cause serious complications.

[0041] refer to Figure 1 As shown, on the one hand, this embodiment provides a posterior nasal packing device, comprising: a catheter 1; a packing assembly, which is arranged on the catheter 1, and the first end of the packing assembly is in contact with the nasopharynx in a set state; a limiting mechanism, which is arranged on the outer wall of the catheter, and the limiting mechanism moves within a predetermined range along the side wall of the catheter. The catheter 1 in this embodiment is set as a curved structure with a smooth outer wall.

[0042] The packing assembly includes: an airbag 201, which is located at the first end of the packing assembly. The airbag 201 is passed into the nasopharynx in a contracted state. After the airbag 201 is completely passed into the nasopharynx, the airbag 201 is in an expanded state and fits with the nasopharynx. For details, refer to Figure 2 As shown; the airbag inlet 203 is located at the second end of the packing assembly, and the fluid is injected into the airbag 201 through the airbag inlet 203; the connecting pipeline 202 is arranged on the side wall of the catheter 1, and is used to connect the airbag 201 and the airbag inlet 203. Figure 2As shown, in this embodiment, the connecting pipeline 202 is arranged close to the inner wall of the catheter 1. In this embodiment, the fluid introduced into the airbag 201 includes: any one of air and physiological saline.

[0043] A one-way valve structure is provided at the airbag inlet 203 to prevent overflow of the airbag inlet 203 when fluid is injected.

[0044] refer to Figure 3 As shown, the one-way valve structure includes: a sleeve 2033; a connecting port 2031, which is located at the first end of the sleeve 2033 and is connected to the connecting pipeline 202; a fixing plate 2035, which is arranged at the second end of the sleeve 2033, and a through hole is opened on the fixing plate 2035; a spring 2032, which is arranged in the sleeve 2033, and one end of the spring 2032 is connected to a baffle 2034, the baffle 2034 abuts against the fixing plate 2035, and the baffle 2034 covers the through hole; a connecting tube 2036, a first end of which is arranged in the through hole; a fluid injection interface 2037, which is arranged at the second end of the connecting tube 2036, and is used to inject fluid into the connecting tube 2036 on the airbag inlet 203.

[0045] The spring 2032 is a compression spring. In its initial state, the spring 2032 pushes the baffle plate 2034 to abut against the side wall of the fixing plate 2035 .

[0046] Continue to refer Figure 1 As shown, the limiting mechanism is arranged between the airbag 201 and the airbag inlet 203. The limiting mechanism includes: a threaded section 303, which is arranged on the outer wall of the catheter; a front nasal stopper 301, which is sleeved on the threaded section 303; a limiting nut 302, which is connected to the threaded section 303 and is located on one side of the front nasal stopper 301, so that the threaded section 303 is located on the side close to the outer opening 102 of the catheter. In this embodiment, the front nasal stopper 301 is set as a hemispherical structure, and one end of its spherical surface is located on the side close to the airbag 201. And the spherical part is selected from a softer material.

[0047] On the other hand, the present embodiment further provides a sterile kit for posterior nasal packing, comprising: the above-mentioned posterior nasal packing device, a syringe, paraffin oil cotton balls, gun-shaped forceps, oil gauze strips and sterile gloves.

[0048] The specific implementation steps of the posterior nasal packing device in this embodiment include:

[0049] Step S1: prepare the posterior nasal packing device, syringe, paraffin cotton ball, gun-shaped forceps, oil gauze strips, and sterile gloves in this embodiment.

[0050] Step S2: Open the sterile suit, take out and put on gloves, lubricate the inner opening 101 of the catheter with paraffin cotton balls, and clamp the catheter 1 with gun-shaped forceps. At this time, the airbag 201 (about 2 cm in length) is in a retracted state and close to the catheter wall. The inner opening 101 of the catheter enters from the anterior nostril and slowly passes through the nasal cavity to the nasopharynx (the nasopharynx is about 7-8 cm away from the anterior nostril). The outer wall of the catheter 1 can be marked with scales to measure the depth of the inner opening 101 of the catheter entering the nasal cavity. In this embodiment, the catheter 1 is made of rubber or other smooth materials that have a certain support force but can bend with the nasal cavity, and the axial extension is small (to meet the subsequent thread limit requirements).

[0051] Step S3: When the airbag 201 completely reaches the nasopharynx (about 10-11 cm after the inner opening 101 of the catheter enters the anterior nostril), the inlet 203 of the airbag is provided with a one-way valve structure. When inflating or injecting water, the syringe head is tightly connected with the fluid injection interface 2037, so that it pushes the spring 2032, and the inner opening of the connecting tube 2036 is exposed in the sleeve 2033. At this time, the gas / liquid enters the connecting pipeline 202 from the syringe, so that the airbag 201 is in an expanded state. After the syringe is pulled out, the spring 2032 restores its natural length, so that the baffle 2034 fits the fixing plate 2035 to prevent the gas / liquid entering the connecting pipeline 202 from leaking out, and the outer opening 102 of the catheter is pulled with appropriate force, and 10 ml of air (or saline) is injected into the inlet 203 of the airbag with a syringe. At this time, the airbag is in an expanded state. The catheter 1 is properly pulled outward from the outer opening 102 of the catheter, so that the airbag 201 fully squeezes the nasopharynx to play a compressive hemostasis effect. Since the posterior nasal cavity is narrower than the nasopharynx, when the airbag 201 is inflated and the catheter is pulled outward, the airbag 201 will be stuck in the posterior nasal cavity and will not be pulled out of the nasal cavity.

[0052] Step S4: Use gun-shaped forceps to hold the gauze strip and properly fill the nasal cavity. The cross-section of the anterior nasal stopper 301 is larger than the anterior nasal cavity, and can be moved freely on the threaded tube wall 303 of the catheter. It is pressed against the anterior nasal cavity, and then the limiting nut 302 is moved inward along the thread of the tube wall until the anterior nasal stopper 301 is completely fixed to the anterior nasal cavity. In order to prevent the anterior nasal stopper 301 from compressing the anterior nasal cavity for a long time and causing ischemic damage to the anterior nasal cavity, the curved surface of the anterior nasal stopper 301 that contacts the skin of the anterior nasal cavity can be made of a softer material.

[0053] Step S5: It generally takes 48-72 hours for the nasopharyngeal bleeding to stop completely. During this period, air can enter the airway through the hollow catheter, and the patient's nasal cavity will not be completely blocked, thereby improving the patient's tolerance. When the device needs to be removed after the packing is completed, the gas (or saline) is completely extracted from the fluid injection interface 2037 of the airbag inlet 203 with a syringe. At this time, the airbag is in a retracted state and is close to the catheter wall. The limit nut 302 is rotated toward the outer mouth to make the anterior nasal stopper 301 leave the anterior nasal cavity, the oil gauze strip packed in the nasal cavity is taken out, and the catheter 1 is slowly withdrawn from the nasal cavity.

[0054] The airbag 201 in this embodiment has two states: inflation and compression and deflation and retraction. The nasopharynx is located deep behind the nasal cavity, and the device needs to be inserted from the nostrils. Therefore, when inserted, the airbag 201 is in a retracted state, so that it can pass through the narrow nasal cavity; after the device reaches the nasopharynx, the airbag 201 is in an inflated state to fully compress and stop bleeding. Since the nasal cavity is located on the head side and is narrow, and the throat is located on the tail side and the space is wide, coupled with the effect of gravity, the above-mentioned airbag 201 is easy to fall from the posterior nostril to the throat in the inflated state, and in severe cases, it blocks the airway and causes suffocation. To avoid this situation, the anterior nostril stopper 301 is fixed to the anterior nostril to prevent the device from shifting downward and inward. In this embodiment, the catheter 1 is hollow in design, and the hemostatic device can be inserted while the blood and blood clots in the nasopharynx are sucked out; after the hemostasis is completed, the device stays in the nasal cavity for 48-72 hours, during which the patient can breathe through the central tube, thus avoiding the situation where the nasal cavity is completely blocked and unable to breathe after traditional packing.

[0055] In another embodiment, the posterior nasal packing device is provided in a sterile suit, which includes: the posterior nasal packing device in the above embodiment, i.e., a hemostatic catheter with an air bag as the main body, a syringe, a paraffin oil cotton ball, a gun-shaped forceps, an oil gauze strip, and sterile gloves. The packing of the posterior nasal cavity is convenient and quick, and the sterile suit includes the instruments and items required for packing, which saves time and labor, and can use the limited time of the emergency department for more therapeutic operations.

[0056] In summary, the present embodiment proposes a posterior nasal packing device, which can be quickly inserted from the anterior nostril into the nasal cavity to reach the nasopharynx when in use, so that the airbag is in an inflated state, which plays a role in compression and hemostasis, and at the same time, the anterior nostril limiter is used to properly keep the device in a predetermined position to prevent the airbag from sliding toward the throat and causing airway obstruction or even suffocation. The posterior nasal packing device of the present invention is simple to operate, abandons the traditional repeated packing method through the nasal cavity and oral cavity, and has better patient tolerance; the device is safe and stable, and after the airbag reaches the functional position, the limiter on the outside of the anterior nostril keeps the device in a fixed position for a long time to prevent the airbag from moving and blocking the airway, and at the same time abandons the traditional complicated operation of fixing it to the head with ropes or silk threads; and the present device is convenient and fast, and includes the instruments and items required for packing in the form of a sterile set, which saves time and effort, and can use the limited time of emergency more for therapeutic operations.

[0057] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0058] It should be noted that the devices and methods disclosed in the embodiments of this article can also be implemented in other ways. The device implementation described above is only schematic. For example, the flowcharts and block diagrams in the accompanying drawings show the possible architecture, functions and operations of the devices, methods and computer program products according to multiple embodiments of this article. In this regard, each box in the flowchart or block diagram can represent a part of a module, program or code, and the module, program segment or part of the code contains one or more executable instructions for implementing the specified logical function, and the module, program segment or part of the code contains one or more executable instructions for implementing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order from the order marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flowchart, and the combination of boxes in the block diagram and / or flowchart can be implemented by a dedicated hardware-based system for performing a specified function or action, or can be implemented by a combination of dedicated hardware and computer instructions.

[0059] In addition, the functional modules in the various embodiments of this document may be integrated together to form an independent part, or each module may exist independently, or two or more modules may be integrated to form an independent part.

[0060] Although the content of the present invention has been described in detail through the above preferred embodiments, it should be appreciated that the above description should not be considered as a limitation of the present invention. After reading the above content, it will be apparent to those skilled in the art that various modifications and substitutions of the present invention will occur. Therefore, the protection scope of the present invention should be limited by the appended claims.

Claims

1. A posterior nasal packing device, characterized in that: include: catheter; A packing assembly is arranged on the catheter, wherein a first end of the packing assembly is in contact with the nasopharynx in a set state; The limiting mechanism is arranged on the outer wall of the conduit, and the limiting mechanism moves within a predetermined range along the side wall of the conduit.

2. The posterior nasal packing device according to claim 1, characterized in that The packing assembly comprises: An airbag, which is located at the first end of the packing assembly, is passed into the nasopharynx in a contracted state, and after the airbag is completely passed into the nasopharynx, the airbag is in an expanded state and fits with the nasopharynx; an airbag inlet located at the second end of the stuffing assembly, through which fluid is injected into the airbag; A connecting pipeline is arranged on the side wall of the catheter and is used for connecting the airbag and the airbag inlet.

3. The posterior nasal packing device according to claim 2, characterized in that: The fluid introduced into the airbag includes any one of air and physiological saline.

4. The posterior nasal packing device according to claim 2, characterized in that: A one-way valve structure is provided at the airbag inlet, which is used to prevent overflow of the airbag inlet when fluid is injected.

5. The posterior nasal packing device according to claim 4, characterized in that: The one-way valve structure comprises: Sleeve; A connecting port, located at the first end of the sleeve and connected to the connecting pipeline; A fixing plate, which is arranged at the second end of the sleeve, and a through hole is formed on the fixing plate; A spring is disposed in the sleeve, one end of the spring is connected to a baffle, the baffle abuts against the fixing plate, and the baffle covers the through hole; A connecting cylinder, a first end of which is disposed in the through hole; A fluid injection interface is arranged at the second end of the connecting tube and is used for injecting fluid into the airbag inlet.

6. The posterior nasal packing device according to claim 5, characterized in that: The spring is a compression spring. In its initial state, the spring pushes the baffle plate to abut against the side wall of the fixing plate.

7. The posterior nasal packing device according to claim 2, characterized in that: The limiting mechanism is arranged between the airbag and the airbag inlet.

8. The posterior nasal packing device according to claim 7, characterized in that: The limiting mechanism comprises: a threaded section disposed on an outer side wall of the conduit; A front nostril stopper, which is sleeved on the threaded section; A limiting nut is connected to the threaded section and is located on one side of the anterior nostril limiter.

9. The posterior nasal packing device according to claim 8, characterized in that: The anterior nasal stopper is configured as a hemispherical structure, and one end of the spherical surface is located at a side close to the air bag.

10. A sterile kit for posterior nasal packing, characterized in that: include: A posterior nasal packing device, a syringe, a paraffin cotton ball, a gun-shaped forceps, an oil gauze strip and sterile gloves as described in any one of claims 1 to 9.

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