Tracheostomy cannula capable of preventing secretion from overflowing

Abstract

The utility model relates to the field of medical instruments, in particular to a tracheostomy cannula capable of preventing secretion from overflowing, which comprises a cannula and a penetrating tube, a threaded taper sleeve is arranged at the top of the penetrating tube, a threaded ring is in threaded connection with the surface of the threaded taper sleeve, the inner walls of the threaded taper sleeve and the penetrating tube abut against the surface of the cannula, and a fixing plate is arranged on the surface of the penetrating tube. An air bag is arranged on the surface of the penetrating pipe and located at the bottom of the fixing plate, an air inlet pipe is arranged in the fixing plate, one end of the air inlet pipe is communicated with the interior of the air bag, a plug is detachably connected to the interior of the air inlet pipe, and a penetrating hole is formed in the fixing plate; the protruding part of the air bag enters the incision in advance, part of the air bag makes contact with the skin of a patient, then the fixing plate is fixed to the proper position of the neck of the patient through the fixing belt, gas is injected into the air bag through the air inlet pipe, the air bag expands to seal the incision, and secretion is effectively prevented from flowing out. Secretions are effectively prevented from flowing out, and the nursing difficulty is reduced.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and in particular to a tracheostomy cannula for preventing leakage of secretions. Background Technology

[0002] A tracheostomy cannula is a medical device inserted into a patient's trachea through a tracheostomy incision in the neck during a tracheostomy. The purpose of inserting a tracheostomy cannula after a tracheostomy is to maintain an open airway, allow for mechanical ventilation, and promptly clear secretions from the airway.

[0003] A "tracheostomy cannula" with publication number CN217612374U is disclosed on the Chinese Patent Network. By setting a grid on the cannula body or the drum on the cannula body, when negative pressure is used to suction aspirated material, soft tissue will not block the channel on the grid, avoiding the failure of suctioning aspirated material due to blockage, thereby achieving the effect of smooth suction of aspirated material and improving the effect of clearing aspirated material.

[0004] In some cases, due to the large size of the surgical wound, it is unavoidable for secretions to leak from the gap between the tracheostomy cannula and the wound. The current solution is to place tracheostomy gauze under the tracheostomy site, which needs to be changed at least twice a day. For patients with a lot of secretions, the frequency of changes needs to be increased. At this time, the main function of the gauze is to block direct contact between the skin and secretions, so as to prevent skin and mucous membrane damage caused by a prolonged moist environment, and it also provides some skin protection. However, this method has certain problems. Frequent gauze changes not only aggravate the patient's discomfort, but also increase the workload of nursing care. If the gauze is not changed in time due to busy nursing work, the skin at the tracheostomy site may remain in a moist environment for a long time, leading to problems such as skin and mucous membrane damage. Utility Model Content

[0005] This application provides a tracheostomy cannula for preventing secretion leakage, addressing the inventor's understanding that in some cases, due to large surgical wounds, secretions inevitably leak from the gap between the tracheostomy cannula and the wound. Current solutions involve padding the tracheostomy site with tracheostomy gauze, which needs to be changed at least twice daily, and even more frequently for patients with significant secretions. The gauze primarily serves to block direct contact between the skin and secretions, preventing skin and mucous membrane damage due to prolonged moisture, while also providing some skin protection. However, this method has certain problems. Frequent gauze changes not only increase patient discomfort but also increase the workload for nursing care. If the gauze is not changed promptly due to busy nursing work, the skin at the tracheostomy site may remain in a moist environment for a prolonged period, potentially leading to skin and mucous membrane damage.

[0006] This application provides a tracheostomy cannula for preventing secretion leakage, including a cannula and a perforation tube. The top of the perforation tube is provided with a threaded conical sleeve, and the surface of the threaded conical sleeve is threadedly connected with a threaded ring. The inner walls of the threaded conical sleeve and the perforation tube are both in contact with the surface of the cannula. A fixing plate is provided on the surface of the perforation tube, and an air bladder is provided on the surface of the perforation tube and at the bottom of the fixing plate. An air inlet pipe is provided inside the fixing plate, one end of which is connected to the inside of the air bladder. A plug is detachably connected inside the air inlet pipe. A perforation is provided inside the fixing plate, and a fixing strap is also included. One end of the fixing strap is provided on one side of the fixing plate, and the other end of the fixing strap can pass through the perforation and be detachably connected to the surface of the fixing strap.

[0007] In any of the above technical solutions, the sleeve is further provided with a connecting hole and a liquid storage cavity inside, and a liquid inlet shell is provided on the surface of the sleeve. The inner cavity of the liquid inlet shell, the connecting hole and the liquid storage cavity are connected in sequence. A baffle is hinged to the inner wall of the liquid storage cavity. A limiting plate is provided at the bottom of the baffle, and the other end of the limiting plate can abut against the inner wall of the liquid storage cavity.

[0008] In any of the above technical solutions, the sleeve is further provided with a liquid extraction channel, which is connected to the liquid storage chamber, and the other end of the liquid extraction channel is detachably connected to the plug.

[0009] In any of the above technical solutions, a soft pad is further provided on the surface of the liquid inlet shell.

[0010] In any of the above technical solutions, the liquid inlet shell is further defined as semi-circular, and the edge of the liquid inlet shell is inclined.

[0011] In any of the above technical solutions, the baffle is further inclined.

[0012] In any of the above technical solutions, the fixing plate is further described as having an arc shape.

[0013] In any of the above technical solutions, further, the plurality of liquid inlet shells are arranged at equal intervals along the central axis of the sleeve.

[0014] In any of the above technical solutions, the other end of the fixing strap is further detachably connected to the surface of the fixing strap via Velcro, buckle, or snap fastener.

[0015] In any of the above technical solutions, the number of liquid inlet shells is multiple, and the number of the connecting holes, the soft pads, the baffles and the limiting plates are all matched with the number of liquid inlet shells.

[0016] The main benefits of this application are:

[0017] The protruding part of the airbag is inserted into the incision site beforehand, and part of the airbag will come into contact with the patient's skin. Then, the fixation plate is fixed to the appropriate position on the patient's neck with the fixation strap. Gas is injected into the airbag through the air inlet tube, and the airbag inflates to seal the incision site, effectively preventing secretions from flowing out and reducing the difficulty of nursing care.

[0018] It should be understood that the foregoing general description and the following detailed description are for illustrative purposes only and do not necessarily limit the scope of this application. The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate the subject matter of this application. Furthermore, the specification and drawings serve to explain the principles of this application. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram (front view) of the air-cutting sleeve structure according to an embodiment of this application;

[0021] Figure 2 This is a schematic diagram (front sectional view) of the pipe-through and connection structure according to an embodiment of this application.

[0022] Figure 3 This is a schematic diagram (front sectional view) of the sleeve and its internal structure in an embodiment of this application.

[0023] Figure 4 Examples of embodiments in this application Figure 3 An enlarged schematic diagram of the structure at point A.

[0024] icon:

[0025] 100-Sleeve; 101-Connecting hole; 102-Liquid storage chamber; 103-Liquid inlet shell; 104-Baffle; 105-Limiting plate; 106-Liquid extraction channel; 107-Soft pad; 200-Through tube; 201-Threaded tapered sleeve; 202-Threaded ring; 203-Fixing plate; 204-Airbag; 205-Air inlet pipe; 206-Perforation; 300-Fixing strap; 400-Block. Detailed Implementation

[0026] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this application, but not all embodiments.

[0027] Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.

[0028] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0030] Please see Figure 1 and Figure 2 One or more embodiments provide a tracheostomy cannula for preventing secretion leakage, including a cannula 100 and a through tube 200. A threaded tapered sleeve 201 is provided at the top of the through tube 200, and a threaded ring 202 is threadedly connected to the surface of the threaded tapered sleeve 201. The inner walls of both the threaded tapered sleeve 201 and the through tube 200 abut against the surface of the cannula 100. A fixing plate 203 is provided on the surface of the through tube 200, and an airbag 204 is provided on the surface of the through tube 200 and at the bottom of the fixing plate 203. An internal component is provided inside the fixing plate 203. The air intake pipe 205 is connected at one end to the interior of the airbag 204. A plug 400 is detachably connected inside the air intake pipe 205. A perforation 206 is provided inside the fixing plate 203. The fixing strap 300 is also included. One end of the fixing strap 300 is located on one side of the fixing plate 203. The other end of the fixing strap 300 can pass through the perforation 206 and be detachably connected to the surface of the fixing strap 300. The other end of the fixing strap 300 is detachably connected to the surface of the fixing strap 300 by Velcro, buckle or snap fastener.

[0031] In this embodiment, the protruding part of the airbag 204 is inserted into the incision site beforehand, and part of the airbag 204 will come into contact with the patient's skin. Then, the fixing plate 203 is fixed to a suitable position on the patient's neck by the fixing strap 300. At this time, the cannula 100 is inserted into the patient's body through the tube 200. By rotating the threaded ring 202, the threaded cone sleeve 201 is squeezed to fix the cannula 100. Then, gas is injected into the airbag 204 through the air inlet tube 205. The airbag 204 expands and seals the incision site, effectively preventing secretions from flowing out and reducing the difficulty of nursing care.

[0032] Please see Figure 1 , Figure 3 and Figure 4 In some embodiments, the sleeve 100 has a connecting hole 101 and a liquid storage cavity 102 inside. The surface of the sleeve 100 is provided with a liquid inlet shell 103. The inner cavity of the liquid inlet shell 103, the connecting hole 101 and the liquid storage cavity 102 are connected in sequence. A baffle 104 is hinged to the inner wall of the liquid storage cavity 102. A limiting plate 105 is provided at the bottom of the baffle 104. The other end of the limiting plate 105 can abut against the inner wall of the liquid storage cavity 102. A liquid extraction channel 106 is provided inside the sleeve 100. The liquid extraction channel 106 is connected to the liquid storage cavity 102. A plug 400 is detachably connected to the other end of the liquid extraction channel 106. A soft pad 107 is provided on the surface of the liquid inlet shell 103.

[0033] In this embodiment, the limiting plate 105 will abut against the inner wall of the liquid storage cavity 102 due to gravity. At this time, there is a gap between the baffle 104 and the liquid storage cavity 102, which allows the secretions to enter. During the outflow process, the secretions will enter the liquid storage cavity 102 through the connecting hole 101 along the liquid inlet shell 103, thereby storing the secretions. As the secretions accumulate, the baffle 104 deflects at an angle under the action of buoyancy until the baffle 104 abuts against the inner wall of the liquid storage cavity 102, thereby blocking the outflow of secretions in the liquid storage cavity 102. The soft pad 107 is mainly set to reduce the impact of the liquid inlet shell 103 on the patient. A negative pressure aspirator can be used. The negative pressure pipe of the negative pressure aspirator enters the liquid storage cavity 102 through the suction pipe and is placed below the baffle 104, thereby drawing out the secretions stored in the liquid storage cavity 102 to the outside under the action of negative pressure.

[0034] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4In some embodiments, the liquid inlet shell 103 is semi-circular and the edge of the liquid inlet shell 103 is inclined. The baffle 104 is inclined and the fixing plate 203 is arc-shaped. Multiple liquid inlet shells 103 are arranged at equal intervals along the central axis of the sleeve 100. The number of liquid inlet shells 103 is multiple. The number of connecting holes 101, soft pads 107, baffles 104 and limiting plates 105 are all matched with the number of liquid inlet shells 103.

[0035] In this embodiment, the inclined edge facilitates the entry of secretions; the inclined baffle 104 facilitates the gap between the baffle 104 and the inner wall of the reservoir 102 under the action of gravity, thereby ensuring the inflow of secretions; the arc shape of the fixing plate 203 can fit the curvature of the patient's neck, thereby improving the tightness between the airbag 204 and the neck position when it is inflated, and further preventing the outflow of secretions.

[0036] Specifically, the working principle of the tracheostomy cannula for preventing secretion leakage provided in this application is as follows:

[0037] The protruding part of the airbag 204 is inserted into the incision site beforehand, and part of the airbag 204 will come into contact with the patient's skin. Then, the fixation plate 203 is fixed in a suitable position on the patient's neck by the fixation strap 300. At this time, the cannula 100 is inserted into the patient's body through the tube 200. By rotating the threaded ring 202, the threaded cone sleeve 201 is squeezed against the cannula 100 to fix the cannula 100. Then, gas is injected into the airbag 204 through the air inlet tube 205. The airbag 204 inflates and seals the incision site, effectively preventing the discharge of secretions and reducing the difficulty of nursing care.

[0038] Due to gravity, the limiting plate 105 will abut against the inner wall of the liquid storage cavity 102. At this time, there is a gap between the baffle 104 and the liquid storage cavity 102, which allows the secretions to enter. During the outflow process, the secretions will enter the liquid storage cavity 102 through the connecting hole 101 along the liquid inlet shell 103, thereby storing the secretions. As the secretions accumulate, the baffle 104 deflects at an angle under the action of buoyancy until the baffle 104 abuts against the inner wall of the liquid storage cavity 102, thereby blocking the outflow of secretions from the liquid storage cavity 102.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application 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 this application.

Claims

1. An airtight cannula for preventing overflow of secretions, characterized in that The device includes a sleeve and a through tube. The top of the through tube is provided with a threaded tapered sleeve, and the surface of the threaded tapered sleeve is threaded with a threaded ring. The inner walls of the threaded tapered sleeve and the through tube are both in contact with the surface of the sleeve. A fixing plate is provided on the surface of the through tube. An air bladder is provided on the surface of the through tube and at the bottom of the fixing plate. An air inlet pipe is provided inside the fixing plate. One end of the air inlet pipe is connected to the inside of the air bladder. A plug is detachably connected inside the air inlet pipe. A perforation is provided inside the fixing plate. The device also includes a fixing strap. One end of the fixing strap is provided on one side of the fixing plate. The other end of the fixing strap can pass through the perforation and is detachably connected to the surface of the fixing strap.

2. The tracheal cannula according to claim 1, wherein The sleeve has a connecting hole and a liquid storage cavity inside. The surface of the sleeve is provided with a liquid inlet shell. The inner cavity of the liquid inlet shell, the connecting hole and the liquid storage cavity are connected in sequence. A baffle is hinged to the inner wall of the liquid storage cavity. A limiting plate is provided at the bottom of the baffle. The other end of the limiting plate can abut against the inner wall of the liquid storage cavity.

3. A tracheal tube for preventing spillage of secretions according to claim 2, wherein, The sleeve has a liquid extraction channel inside, which is connected to the liquid storage chamber. The other end of the liquid extraction channel is detachably connected to the plug.

4. The tracheal cannula according to claim 2, wherein The surface of the liquid inlet housing is provided with a soft pad.

5. The tracheal cannula according to claim 2, wherein The liquid inlet shell is semi-circular, and the edge of the liquid inlet shell is inclined.

6. The tracheal cannula according to claim 2, wherein The baffle is inclined.

7. The tracheal cannula according to claim 1, wherein The fixing plate is arc-shaped.

8. The tracheal cannula according to claim 2, wherein The plurality of liquid inlet shells are arranged at equal intervals along the central axis of the sleeve.

9. The tracheal cannula according to claim 1, wherein The other end of the fixing strap is detachably connected to the surface of the fixing strap via Velcro, buckle, or snap fastener.

10. The tracheal cannula according to claim 4, wherein The number of liquid inlet shells is multiple, and the number of connecting holes, soft pads, baffles and limiting plates are all matched with the number of liquid inlet shells.

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