Medicine-carrying nasal cavity protection device
By designing a drug delivery structure on the outer surface of the nasal cavity protection device, the problems of damage to the nasal mucosa and infection risk of existing nasal cavity protective sleeves are solved, achieving effective drug delivery and protection during surgery.
Patent Information
- Application Number
- CN202423106010.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2034-12-17
AI Technical Summary
Existing nasal protectors are prone to damaging the nasal mucosa during use and pose a risk of infection, failing to effectively protect nasal tissues.
A drug-loaded nasal cavity protection device was designed, with a drug delivery structure on the outer surface, including grooves or protrusions and hollow reinforcing ribs, for storing and delivering drugs during surgery, reducing drug leakage during friction and squeezing, and protecting nasal cavity tissue.
By releasing drugs during surgery through a drug delivery structure, the risk of wound infection is reduced, patient suffering is lessened, more comprehensive protection is provided, and the safety of use is improved.
Smart Images
Figure CN223901080U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of medical apparatus and instruments, and particularly relates to a drug-loaded nasal cavity protection device. BACKGROUND
[0002] The endoscopic surgery is a surgical technique which takes the nasal cavity as a natural surgical channel, and performs the surgery on the nasal cavity, the nasal sinus, the nasal and the nasal eye area through the nose by using the nasal endoscope and other special surgical instruments, and has the advantages of less damage, less bleeding and clear vision during the surgery. The main purpose of the endoscopic surgery is to reconstruct the ventilation and drainage of the nasal cavity and the nasal sinus on the basis of completely removing the irreversible lesions, to improve and restore the morphology and physiological function of the nasal cavity and the nasal sinus mucosa, to cure the sinusitis and the nasal polyps, and to rely on the recovery of the physiological function of the nasal cavity and the nasal sinus to resist the invasion of the pathogenic factors from the outside world and prevent the recurrence of the lesions.
[0003] The surgical instruments are repeatedly inserted into and taken out of the nasal cavity during the surgery, which can easily scratch the nasal mucosa, the nasal septum, the sphenoid bone and the frontal sinus, therefore, the nasal cavity protection sleeve is generally inserted into the nasal cavity to effectively separate the nasal cavity tissue from the surgical instruments, greatly reduce the postoperative complications, and reduce the wound infection. The current commonly used nasal cavity protection sleeve is divided into two types, one of which is made of nylon and other textile materials, and the other of which is made of silicone by injection molding. Both of them still have the risk of damaging the nasal mucosa and other tissues during use. The nasal cavity protection sleeve is easy to rotate after being subjected to external force, and the rotation causes the friction with the nasal cavity, resulting in damage. SUMMARY
[0004] In view of the above problems in the prior art, the utility model provides a drug-loaded nasal cavity protection device to solve the above problems.
[0005] In order to solve the above technical problems, the utility model adopts the following technical scheme:
[0006] The drug-loaded nasal cavity protection device comprises a body, the proximal end of the body is an external part, the distal end of the body is a nasal cavity part, a plurality of reinforcing ribs are arranged around the outer surface of the nasal cavity part, the body as a whole is a conical tubular shape, and a drug-loaded delivery structure is arranged on the body.
[0007] Further, the drug-loaded delivery structure is a plurality of grooves formed on the outer surface of the nasal cavity part, the grooves are uniformly distributed on the outer surface of the nasal cavity part and located on both sides of the reinforcing ribs.
[0008] Further, the grooves are circular holes.
[0009] Further, the grooves are strip-shaped.
[0010] Further, the drug-loading delivery structure is a plurality of protrusions fixedly arranged on the outer surface of the nasal cavity part, and the protrusions are uniformly distributed on the outer surface of the nasal cavity part and located on both sides of the reinforcing rib.
[0011] Further, the drug-loading delivery structure is a reinforcing rib of a plurality of hollow structures fixedly connected to the body and a catheter in communication with the reinforcing rib of the hollow structure.
[0012] Compared with the prior art, the utility model has the following beneficial effects:
[0013] The utility model discloses a drug-loading nasal cavity protection device, which comprises a body, a reinforcing rib of a plurality of hollow structures fixedly connected to the body and a catheter in communication with the reinforcing rib of the hollow structure. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is a structure schematic view of the drug-loading nasal cavity protection device embodiment one of the utility model.
[0015] Figure 2 It is a structure schematic view of the drug-loading nasal cavity protection device embodiment one of the utility model.
[0016] Figure 3 It is a structure schematic view of the drug-loading nasal cavity protection device embodiment two of the utility model.
[0017] Figure 4 It is a structure schematic view of the drug-loading nasal cavity protection device embodiment three of the utility model.
[0018] Figure 5 It is a structure schematic view of the drug-loading nasal cavity protection device embodiment three of the utility model.
[0019] The reference signs in the drawings of the specification include:
[0020] Drug-loading nasal cavity protection device 1, reinforcing rib 11, groove 12, protrusion 21, small hole 31, catheter 32. DETAILED DESCRIPTION
[0021] In order to make those skilled in the art better understand the utility model, the technical scheme of the utility model is further explained below in combination with the drawings and embodiments.
[0022] In the drawings, only for example, the representation is a schematic diagram, not a physical diagram, and cannot be understood as a limitation of the patent; in order to better illustrate the embodiments of the utility model, some components of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures in the drawings and their descriptions may be omitted.
[0023] The same or similar reference numerals in the drawings of the embodiments of the utility model correspond to the same or similar components; in the description of the utility model, it is understood that if the terms 'upper', 'lower', 'left', 'right', 'inner', 'outer' and the like indicate the orientation or positional relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and not to indicate or imply that the device or element referred to must have a particular orientation, structure and operation, therefore, the positional relationship described in the drawings is only for example, and cannot be understood as a limitation of the patent, for those skilled in the art, the specific meaning of the above terms can be understood according to the specific situation.
[0024] In the description of the utility model, unless otherwise explicitly specified and limited, if the term 'connection' and the like appear, the connection between the components should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two components or the interaction relationship between two components. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific situation.
[0025] Embodiment:
[0026] Embodiment one
[0027] As Figure 1 The overall structure diagram of the drug-loaded nasal cavity protection device 1 is shown, which is a tubular structure similar to a cone, the inner surface is smooth and flat without protrusions, depressions and other special-shaped structures, avoiding the jamming of the instrument in and out, the large opening at the distal end is the part extending into the nasal cavity, and the small opening at the proximal end is the part outside the body, the material is preferably medical silica gel or other required material, the reinforcing rib 11 is designed on the outer side of the distal end to increase the supporting strength, which is beneficial to the recovery of the smooth inner cavity after the device is folded and extruded, and a plurality of grooves 12 are uniformly distributed on the outer surface of the distal end, which are not limited in shape and can be circular, strip-shaped or other required shapes. Figure 2 Two examples are shown, which can temporarily store a small amount of medicine and carry the medicine into the nasal cavity channel.
[0028] In the endoscopic surgery, the drug-loaded nasal cavity protection device is first sprayed or infiltrated with drugs on its outer surface, then folded with surgical forceps, sent into the nostril, and released after confirming the placement. The drug-loaded nasal cavity protection device expands and opens under its own elastic force, adheres to the nasal cavity, and if the adhesion is not complete, it can be expanded to complete adhesion with appropriate tools. Part of the drug in the groove 12 is naturally discharged onto the nasal mucosa and other tissues under the action of gravity, and the other part is discharged from the groove by mutual friction and extrusion when the instrument repeatedly passes in the lumen of the device, thereby achieving the purpose of reducing wound infection.
[0029] Example Two
[0030] As shown in Figure 3 , based on Example One, the groove 12 is changed to a hollow protrusion 21 structure, the hollow depth can be adjusted according to the height of the protrusion 21, and the edge is designed as a tapered structure. When the drug-loaded nasal cavity protection device is infiltrated with drugs, the protrusion 21 is fully loaded with drugs, and during the placement into the nasal cavity, due to the tapered structure, the drugs will not easily flow out.
[0031] The difference between this example and the above examples is the different recess structure. This structure has more drug loading capacity because the protrusion 21 can be appropriately increased in height without being limited by the wall thickness, while the depth of the recess 12 is limited by the wall thickness of the nasal cavity protection device 1, and the tapered structure has better drug loading effect, reduces the natural flow of drugs, and can also prevent excessive loss during placement into the nasal cavity, thereby reducing the treatment effect.
[0032] Example Three
[0033] As shown in Figure 4 , based on the above examples, the groove 12 and the protrusion 21 are cancelled, and the reinforcing rib 11 is made into a hollow structure with uniformly distributed small holes 31 on the surface. A conduit 32 connects between each reinforcing rib, forming a passageway. The length of the conduit 32 is flush with the proximal end of the drug-loaded nasal cavity protection device 1, which is used to deliver drugs into the nasal cavity. The conduit 32, reinforcing rib 11, and drug-loaded nasal cavity protection device 1 can be integrally injection molded, or three parts can be independently injection molded and then fused into one body by bonding or welding. Figure 5 As shown in , the injection needle tube is inserted into the end of the conduit 32 to deliver the drug, and the distal end flows out from the small hole 31.
[0034] The difference between this example and the above two examples is the change in drug loading method. This example uses a conduit to deliver drugs instead of a groove, which can inject drugs into the nasal cavity at any time and accurately control the drug amount, and has better anti-allergic and anti-infective effects.
[0035] The above is only an embodiment of the present application, and the common knowledge of specific structures and properties in the scheme is not described in detail, the ordinary skilled person in the art knows all the ordinary technical knowledge in the technical field of the present application before the application date or the priority date, can know all the prior art in the field, and has the ability to apply conventional experimental means before that date, the ordinary skilled person in the art can improve and implement the present scheme under the inspiration given in the present application, and some typical known structures or known methods should not be an obstacle for the ordinary skilled person in the art to implement the present application. It should be pointed out that, for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, which will not affect the effect and practicality of the present application.
Claims
1. A drug-loaded nasal cavity protection device, characterized in that: The application relates to a drug delivery device, which comprises a body, a proximal end of the body being an external part, a distal end of the body being a nasal cavity part, a plurality of reinforcing ribs being arranged on the outer surface of the nasal cavity part in a surrounding mode, the body being a whole conical tubular body, and a drug delivery structure being arranged on the body, wherein the drug delivery structure can be any one of the following structures: The drug delivery structure is a plurality of grooves arranged on the outer surface of the nasal cavity part, the grooves being uniformly distributed on the outer surface of the nasal cavity part and located on both sides of the reinforcing ribs. The drug delivery structure is a plurality of protrusions fixedly arranged on the outer surface of the nasal cavity part, the protrusions being provided with openings, the protrusions being uniformly distributed on the outer surface of the nasal cavity part and located on both sides of the reinforcing ribs. The drug delivery structure is a reinforcing rib provided with a hollow structure and fixedly connected to the body, and a plurality of holes are arranged on the reinforcing rib.
2. A drug-loaded nasal cavity protection device according to claim 1, characterized in that: The grooves are circular holes.
3. The drug-loaded nasal cavity protection device according to claim 1, characterized in that: The grooves are strip-shaped.