Nasal cavity operation incision protection sleeve conveying device

Abstract

The utility model discloses a nasal cavity surgical incision protective sleeve conveying device, which relates to the field of nasal cavity surgical instruments, and comprises a conveying rod and a pressing rod, a guide head is arranged at the head of the conveying rod, a cylindrical hole is arranged on the guide head, a cylindrical raised head is arranged at the head of the pressing rod, and the cylindrical raised head is connected with the pressing rod. The conveying rod and the pressing rod are connected in a clamped mode through the cylindrical hole and the cylindrical protruding head. The plurality of cylindrical holes are uniformly distributed around the axis of the conveying rod; the guide head of the conveying rod and the head of the pressing rod are connected in a clamped mode through the cylindrical holes and the cylindrical protruding heads, and meanwhile the cylindrical holes are evenly formed in the circumferential side of the guide head, so that when the pressing rod is used for pressing a notch protection sleeve wound around the outer surface of the conveying rod, the notch protection sleeve is not prone to falling off. The pressing position of the pressing rod can be flexibly adjusted according to the tail end position of the protective sleeve, clamping is conducted through the adaptive cylindrical hole, the protective sleeve cannot be adjusted, operation is easy and convenient, and clinical application is convenient.

Description

Technical Field

[0001] The utility model relates to the field of nasal surgery instruments, in particular to a nasal surgery incision protection sleeve delivery device. Background Art

[0002] Incision protection covers are widely used during surgery. On the one hand, they can prevent incision infection and facilitate postoperative recovery. On the other hand, they can expand the surgical field of view and allow the operation to proceed smoothly. In order to adapt to different surgical sites, different incision protection covers are usually available.

[0003] The transnasal approach utilizes the natural spaces within the body's cavities, including the nasal cavity, sinuses, and nasopharynx, to fully expose and maximize the resection of diseased tissue. Due to its advantages, including a short path, wide field of view, clear imaging, minimal trauma, rapid postoperative recovery, and low cost, it has become an inevitable trend in sinusoscopic and transnasal skull base endoscopic surgery.

[0004] Currently, most commercially available nasal sheaths for transnasal surgery utilize a tubular silicone sheath. This creates significant friction between the silicone material and the instrument surface, making delivery difficult and a significant challenge for clinicians. Therefore, a specialized delivery device is needed to ensure the sheath's stability during nasal delivery.

[0005] Chinese patent application publication number CN 116869616 A discloses a nasal protective sleeve and a delivery device for a transnasal endoscopic surgical channel. Although this delivery device can effectively deliver the nasal protective sleeve into the nasal cavity, it can only be compressed by the upper surface of the core rod and the movable rod. Therefore, after the nasal protective sleeve is wrapped, the position of the tail end of the protective sleeve must be adjusted to achieve the purpose of compression. For a protective sleeve made of silicone material, clinical operation is extremely inconvenient. At the same time, the delivery device is easily stuck in the protective sleeve when it is removed after delivery, causing great trouble in clinical use. Utility Model Content

[0006] In view of the above-mentioned deficiencies in the prior art, the present invention provides a nasal surgery incision protective sleeve delivery device to solve the problems in the prior art of difficulty in delivering the nasal protective sleeve, inconvenience in tightening the tail end position after winding, and inconvenience in removing the delivery device.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A nasal surgery incision protective sleeve delivery device includes a delivery rod and a pressure rod. The delivery rod head is provided with a guide head, the guide head is provided with a cylindrical hole, and the pressure rod head is provided with a cylindrical convex head. The delivery rod and the pressure rod are clamped together through the cylindrical hole and the cylindrical convex head; a plurality of cylindrical holes are provided, and the multiple cylindrical holes are evenly distributed around the axis of the delivery rod.

[0009] As a further implementation, the front and rear ends of the guide head are designed to be tapered to facilitate the delivery and removal of the delivery rod and to prevent the delivery rod from getting stuck on the incision protective cover when being removed.

[0010] As a further implementation method, the conveying rod also includes a connecting rod, which is connected to the rear end of the guide head. The cross-section of the connecting rod is polygonal, corresponding to the number and distribution of the cylindrical holes, so that the head of the pressure rod can be inserted into the appropriate cylindrical hole according to the position of the tail end of the protective cover to achieve rapid compression of the incision protective cover.

[0011] As a further implementation method, the number of the cylindrical holes is not less than six, so as to ensure to the greatest extent that the tail end pressing position after the incision protection sleeve is wrapped is the optimal pressing position.

[0012] As a further implementation, the cross section of the connecting rod is a regular hexagon.

[0013] As a further implementation method, a contoured groove is opened on one radial side of the pressure rod, the shape of the contoured groove matches the shape of the connecting rod, and the pressure rod fits with the outer periphery of the connecting rod through the contoured groove to ensure that the protective cover is firmly pressed.

[0014] As a further implementation method, the pressure rod is further provided with a booster plate for assisting in delivering the protective cover into the nasal cavity, and the pressure rod can be pulled out by pulling the booster plate.

[0015] As a further implementation, a second handle is provided at the tail of the pressure rod, and the second handle is provided with outward convex anti-slip grooves.

[0016] As a further implementation method, a first handle is provided at the tail end of the connecting rod, and the first handle is provided with a concave anti-slip pattern to increase friction and prevent slipping without affecting the fit between the pressure rod and the outer surface of the conveying rod.

[0017] As a further implementation method, the delivery rod is made of medical-grade PC material, which can increase the structural strength of the delivery rod while ensuring safety.

[0018] As a further implementation method, the delivery rod and the pressure rod are processed with rounded corners to remove sharp angles and prevent the delivery device from causing damage to the nasal cavity when contacting the nasal cavity of the human body.

[0019] By adopting the above technical solution, the beneficial effects of the utility model are as follows:

[0020] 1. The utility model clamps the guide head of the delivery rod and the head of the pressure rod through a cylindrical hole and a cylindrical protrusion. At the same time, a plurality of cylindrical holes are evenly arranged on the circumference of the guide head, so that when the pressure rod is used to compress the incision protective cover wrapped around the outer surface of the delivery rod, the pressing position of the pressure rod can be flexibly adjusted according to the end position of the protective cover and clamped through the adapted cylindrical hole. The protective cover cannot be adjusted, the operation is simple, and it is convenient for clinical application.

[0021] 2. In order to further facilitate the transportation of the incision protective sleeve, the connecting rod of the conveying rod is designed to be a regular polygon corresponding to the number and distribution of the cylindrical holes. Combined with the profiling groove opened on the pressure rod, the end position of the protective sleeve after winding can be determined more accurately and quickly, so that after the pressure rod is pressed against the protective sleeve, the cylindrical protrusion can be quickly clamped into the cylindrical hole at the corresponding position, which is efficient and practical.

[0022] 3. The front and rear ends of the delivery rod guide are processed into a tapered shape in the present invention, which can prevent the delivery rod from getting stuck on the protective cover when being removed, so as to better adapt to nasal surgery and ensure that the protective cover is smoothly delivered into the nasal cavity and removed smoothly, so as to better adapt to nasal surgery.

[0023] 4. The utility model has a simple structure and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0025] Figure 1 This is a schematic diagram of the axonometric structure of an embodiment of the present utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the conveying rod according to an embodiment of the utility model;

[0027] Figure 3 This is a schematic diagram of the pressure rod structure of an embodiment of the utility model;

[0028] Figure 4 This is a schematic diagram of the assembly of an embodiment of the utility model;

[0029] Figure 5 This is a schematic diagram of the structure of the incision protection cover used in the embodiment of the present utility model;

[0030] Figure 6 This is a schematic diagram of the installation of the embodiment of the utility model and the incision protection cover.

[0031] In the figure: 1, incision protection cover; 2, conveying rod; 3, pressure rod;

[0032] 201. Guide head; 202. Cylindrical hole; 203. Connecting rod; 204. First handle; 301. Cylindrical boss; 302. Boosting plate; 303. Second handle; 304. Contoured groove. DETAILED DESCRIPTION

[0033] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0034] It should be noted that the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0035] Example 1

[0036] In a typical embodiment of the present application, a nasal surgery incision protective sleeve delivery device is provided, such as Figure 1-6 As shown, it includes a conveying rod 2 and a pressure rod 3. The head of the conveying rod 3 is provided with a guide head 201, and the guide head 201 is provided with a cylindrical hole 202. The head of the pressure rod 3 is provided with a cylindrical protrusion 301. The shape and size of the cylindrical protrusion 301 are corresponding to the cylindrical hole 202. The conveying rod 2 and the pressure rod 3 are clamped together through the cylindrical hole 202 and the cylindrical protrusion 301. The cylindrical hole 202 is provided in plurality and is evenly distributed on the outer surface of the guide head 201 around the axis of the conveying rod.

[0037] In this embodiment, Figure 1-2 As shown, the front and rear ends of the guide head 201 are tapered to facilitate transport and removal of the delivery rod and prevent it from getting stuck on the cutout protective sleeve during removal. Specifically, a cylindrical hole is provided on the tapered surface at the rear end of the guide head to engage with the pressure rod. Furthermore, to facilitate machining, a similar cylindrical hole is also machined into the tapered surface of the front end of the guide head, away from the connecting rod. This reduces the complexity of the mold structure during delivery rod machining and simplifies the formation of the guide head.

[0038] In this embodiment, the conveying rod 2 also includes a connecting rod 203 connected to the rear end of the guide head. The cross-section of the connecting rod 203 is a polygon. The specific shape of the polygon corresponds to the number and distribution of the cylindrical holes, which makes it convenient to insert the pressure rod head into the appropriate cylindrical hole according to the position of the tail end of the protective cover to achieve rapid compression of the incision protective cover.

[0039] In order to ensure that the tail end of the incision protection sleeve is pressed at the optimal position after being wrapped, the number of the cylindrical holes should be no less than six. In this embodiment, the cylindrical holes 202 are set to six and are evenly distributed around the guide head. Figure 2 As shown, correspondingly, the cross-section of the connecting rod 203 is a regular hexagon, and each side of the connecting rod 203 corresponds one-to-one to the position of each cylindrical hole 202 on the guide head, so that the cylindrical boss of the pressure rod head can be easily clipped into the cylindrical hole of the corresponding angle after confirming the tightening position of the incision protection sleeve.

[0040] In addition, a first handle 204 is provided at the tail end of the connecting rod 203. The outer surface of the first handle 204 is provided with concave anti-slip grooves to increase friction and prevent slipping without affecting the fit between the pressure rod and the outer surface of the conveying rod.

[0041] like Figure 3-4 As shown, in this embodiment, a profiled groove 304 is defined on one radial side of the compression rod 3. The shape of the profiled groove 304 matches the cross-sectional shape of the connecting rod 203. The compression rod 3 is aligned with the outer circumference of the connecting rod 203 through the profiled groove 304 to ensure that the protective sleeve is securely pressed. Specifically, the opening size of the profiled groove 304 is determined based on the actual shape. In this embodiment, since the connecting rod is a regular hexagon, the cross-sectional area of the profiled groove opening is half that of a regular hexagon, ensuring that the compression rod can smoothly wrap around the outer surface of the connecting rod and securely press the cut protective sleeve.

[0042] In addition, a booster plate 302 is provided on the pressure rod to assist in delivering the protective cover into the nasal cavity, making it easier to apply force. When the pressure rod is pulled out, it can be pulled out by pulling the booster plate.

[0043] like Figure 3 As shown, a second handle 303 is further provided at the tail of the pressure rod, and the second handle 303 is provided with outward convex anti-slip grooves.

[0044] It should be noted that, in this embodiment, the delivery rod is made of medical-grade PC material, which can increase the structural strength of the delivery rod while ensuring safety.

[0045] In addition, the delivery rod and the pressure rod are processed with chamfered corners to remove sharp corners, thereby preventing the delivery rod or the pressure rod from damaging the nasal cavity when contacting the human nasal cavity during the delivery of the incision protection sleeve, thereby ensuring safety.

[0046] like Figure 5-6 As shown, the working principle of this embodiment is:

[0047] Will Figure 5 When the incision protective sleeve 1 shown is delivered to the nasal cavity, the incision protective sleeve 1 is first inserted into the delivery rod 2, and then the incision protective sleeve 1 is wrapped along the outer circumference of the delivery rod 2. After the wrapping is completed, according to the end position of the incision protective sleeve 1, the contoured groove of the pressure rod 3 is pressed on the corresponding position on the outside of the connecting rod 203, and the cylindrical protrusion 301 is inserted into the cylindrical hole 202 of the guide head 201, thereby pressing the incision protective sleeve 1. At this time, the delivery device of this embodiment is quickly delivered to the designated position in the nasal cavity together with the incision protective sleeve 1, and then the pressure rod 3 is pulled out under the action of the booster plate 302. At this time, the incision protective sleeve 1 recovers its shape under the action of its own elastic force and fills the nasal cavity. Then, the delivery rod 2 is finally pulled out from the middle hollow of the incision protective sleeve 1. The tapered design can avoid getting stuck on the protective sleeve, ensuring smooth delivery into the nasal cavity and smooth removal.

[0048] It should be noted that the above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Those skilled in the art will appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A nasal surgery incision protective sleeve delivery device, characterized in that: It includes a conveying rod and a pressure rod, the conveying rod head is provided with a guide head, the guide head is provided with a cylindrical hole, the pressure rod head is provided with a cylindrical convex head, the conveying rod and the pressure rod are clamped together through the cylindrical hole and the cylindrical convex head; there are multiple cylindrical holes, and the multiple cylindrical holes are evenly distributed around the axis of the conveying rod.

2. A nasal surgery incision protection sleeve delivery device according to claim 1, characterized in that: The front end and the rear end of the seeker are both designed to be tapered.

3. The nasal surgery incision protection sleeve delivery device according to claim 1, characterized in that: The number of the cylindrical holes is no less than six.

4. The nasal surgery incision protection sleeve delivery device according to claim 1, characterized in that: The conveying rod also includes a connecting rod, which is connected to the rear end of the guide head. The cross-section of the connecting rod is polygonal, corresponding to the number and distribution of the cylindrical holes.

5. The nasal surgery incision protection sleeve delivery device according to claim 4, characterized in that: A profiling groove is provided on one radial side of the pressure rod. The shape of the profiling groove matches the shape of the connecting rod. The pressure rod is fitted with the outer periphery of the connecting rod through the profiling groove.

6. The nasal surgery incision protection sleeve delivery device according to claim 1, characterized in that: The pressure rod is also provided with a boosting plate.

7. The nasal surgery incision protection sleeve delivery device according to claim 1, characterized in that: A second handle is provided at the tail of the pressure rod, and the second handle is provided with outward convex anti-slip patterns.

8. The nasal surgery incision protection sleeve delivery device according to claim 4, characterized in that: A first handle is provided at the tail end of the connecting rod, and the first handle is provided with concave anti-slip patterns.

9. The nasal surgery incision protection sleeve delivery device according to claim 1, characterized in that: The delivery rod is made of medical-grade PC material.

10. The nasal surgery incision protection sleeve delivery device according to claim 1, characterized in that: The conveying rod and the pressure rod are rounded all around.

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