Sealing cap with reinforcing structure

Abstract

The utility model belongs to the technical field of medical instruments, and particularly relates to a sealing cap with a reinforcing structure. In order to solve the problem that in the prior art, the sealing cap with the reinforcing structure for the operation is not prone to being broken when being stressed in an inserting and pulling mode, the sealing cap with the reinforcing structure comprises a cylinder, a positioning ring is connected to the upper portion of the cylinder, and an opening is formed in the end, away from the positioning ring, of the cylinder. A sealing assembly used for opening or closing the opening is arranged at the opening, the sealing assembly is connected to the positioning ring, the sealing assembly comprises a plurality of inclined convex arris bodies, the side edges of the inclined convex arris bodies are connected with sealing skirts, the sealing skirts on every two adjacent inclined convex arris bodies are attached to each other, and the sealing structure further comprises a reinforcing structure connected to the sealing skirts. The two sides of the reinforcing structure are connected to the side faces of the two adjacent inclined convex arris bodies correspondingly, and the reinforcing structure is high in deformation resistance and not prone to breakage; the special shape of the reinforcing structure further reduces the risk that the cap body is broken and punctured by instruments.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical equipment, and in particular relates to a sealing cap with a reinforced structure. Background Art

[0002] Laparoscopic surgery is the mainstream of minimally invasive surgery and has broad development prospects in the future. In laparoscopic surgery, the introduction of various instruments and tools in the puncture device into the abdominal cavity and the formation of pressure in the abdominal cavity are mainly completed by the sealing cap. The sealing caps of most puncture devices on the market can be divided into a cap body and a sealing opening and closing structure connected to it. Because there is a large difference in inclination angle between the sealing opening and closing structure and the cap body, the stress on the instrument when entering and exiting causes irregular cracks, which is very easy to produce fragments and increase the risk of surgery.

[0003] For example, a Chinese utility model patent discloses a sealing cap [application number: CN202223601523.0]. The utility model includes a sealing ring body, a sealing sheet made of a flexible material is provided on the inner side of the sealing ring body, the sealing sheet is recessed downward to form a groove, the inner wall of the groove is inclined downward along the direction from the inner wall of the sealing ring body to the axis of the sealing ring body, and the bottom of the groove is also provided with a through hole for surgical instruments to pass through and sealed; the lower side of the sealing ring body is provided with a plurality of anti-turnover reinforcement ribs extending along the axial direction of the sealing ring body, the plurality of anti-turnover reinforcement ribs are arranged on the peripheral side of the groove, and the anti-turnover reinforcement ribs are fixedly connected to the sealing sheet.

[0004] Although the utility model has the advantage of preventing the sealing sheet from turning up, the cap body and the sealing opening and closing structure are still connected in a conventional manner, and the problem that the sealing cap is easily torn and broken by the stress transmitted during the opening and closing process is not solved. Utility Model Content

[0005] The utility model aims to solve the above problems and provide a sealing cap with a reinforced structure which can effectively reduce the risk of being broken by force when the instrument is inserted or removed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a sealing cap with a reinforced structure, comprising a cylindrical body, a positioning ring connected to the top of the cylindrical body, an opening provided at one end of the cylindrical body away from the positioning ring, a sealing component for opening or closing the opening provided at the opening, the sealing component connected to the positioning ring, the sealing component comprising a plurality of inclined convex prism bodies, the side edges of the inclined convex prism bodies being connected to sealing skirt edges, the sealing skirt edges on two adjacent inclined convex prism bodies being fitted together, and also comprising a reinforcing structure connected to the sealing skirt edge, the two sides of the reinforcing structure being respectively connected to the side faces of two adjacent inclined convex prism bodies.

[0008] In the above-mentioned sealing cap with a reinforced structure, four inclined convex prisms are provided and are evenly distributed along the circumference of the axis of the cylindrical body; the outer periphery of the cylindrical body corresponding to the inclined convex prisms is a recessed portion.

[0009] The above-mentioned sealing cap with a reinforcement structure, the reinforcement structure includes a plurality of reinforcement ribs, the two sides of the reinforcement ribs are respectively connected to the side surfaces of two adjacent inclined convex prisms, the bottom is fixedly connected to the sealing skirt, one end of the reinforcement rib is fixedly connected to the inner surface of the cylinder, and the other end extends radially toward the direction close to the axis of the cylinder.

[0010] The above-mentioned sealing cap with a reinforced structure, the reinforcing rib includes a reinforcing rib main part and a guide part fixedly connected to the end of the reinforcing rib main part away from the cylindrical body, the upper surface of the guide part is a guiding slope, and the thickness of the guide part gradually decreases from one end close to the reinforcing rib main part to the other end.

[0011] In the above-mentioned sealing cap with a reinforcement structure, the reinforcement rib also includes a semicircular arc notch structure, the semicircular arc notch structure is located between the two guide parts and one end of the semicircular arc notch structure extends into the reinforcement rib main part.

[0012] In the above-mentioned sealing cap with a reinforced structure, the angle formed by the inclined ridge lines of each symmetrically inclined convex prism and the center point of the bottom surface of the sealing cap is 80°.

[0013] In the above-mentioned sealing cap with a reinforced structure, the sealing skirt is a sealing structure with an opening and closing seam.

[0014] In the above-mentioned sealing cap with a reinforcement structure, the length of the reinforcement rib main part along the side direction of the inclined convex prism body is 2.1 mm, and the length of the guide part along the side direction of the inclined convex prism body is 1.4 mm.

[0015] The above-mentioned sealing cap with a reinforced structure, the positioning ring includes a small ring and a large ring fixedly connected, the large ring is located below the small ring, and arc-shaped notches are symmetrically arranged on both sides of the large ring, and the depth of the arc-shaped notches is less than one-fourth of the thickness of the large ring.

[0016] Compared with the existing technology, the advantages of the utility model are:

[0017] 1. The sealing cap provided by the utility model is provided with a reinforcement structure at the junction of the sealing cap body (ie, the cylindrical body) and the sealing structure, thereby improving the crack resistance and reducing the risk of fragmentation during surgery.

[0018] 2. The unique shape design of the reinforcing ribs used in the sealing cap reinforcement structure provided by the present invention can further reduce the effect of the sealing cap body being punctured. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is a top view of the utility model;

[0021] Figure 3 It is a bottom view of the utility model;

[0022] Figure 4 for Figure 3 Sectional view of the middle AA plane;

[0023] Figure 5 It is the front view of the utility model;

[0024] In the figure: cylinder 1, positioning ring 2, sealing assembly 3, reinforcement structure 4, center point of bottom surface of sealing cap 5, small circular ring 21, large circular ring 22, inclined convex prism 31, sealing skirt 32, recessed portion 33, inclined ridge line 311, side 312, opening and closing seam 321, reinforcing rib 41, reinforcing rib main part 411, semicircular arc notch structure 4111, guide portion 412. DETAILED DESCRIPTION

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0026] The utility model is a sealing cap with a reinforced structure, such as Figure 1 As shown, a positioning ring 2 for connecting a sealing cap and a puncture device is connected to the top of the cylinder 1, and a sealing assembly 3 for opening or closing an opening for the instrument to enter and work is connected to the bottom of the cylinder 1.

[0027] In the present utility model, when in use, the sealing cap as a whole is connected to the puncture device through the topmost positioning ring 2, and the surgical instrument is inserted into the sealing skirt 32 along the slope of the inclined convex prism 31 provided by the sealing component 3 to enter the instrument channel of the puncture device, and penetrate into the patient's abdominal cavity for surgery. During the instrument insertion process, the elastic sealing component 3 generates an inward contraction and anti-deformation force, which will become a resistance to the entry and exit of the instrument, and react to the sealing component 3 through the instrument; this stress can easily cause the sealing cap with insufficient structural strength to rupture, especially at the connection between its different structures. Therefore, the sealing cap with a reinforced structure provided by the present utility model is designed with a reinforced structure 4. When the surgical instrument is inserted, the instrument reaction force received by the sealing component 3 is pre-borne by the reinforced structure 4 before being transmitted to the weakest inclined convex prism 31, the cylindrical body 1, and the sealing skirt 32 connection, thereby reducing the risk of the main structure of the sealing cap rupture under stress. At the same time, the sealing cap with a reinforced structure is formed in one piece using a silicone material, thereby improving the overall strength.

[0028] In order to achieve a better structural reinforcement effect, preferably, the reinforcement structure 4 is a reinforcement rib 41 structure; the reinforcement rib 41 includes a reinforcement rib main part 411 and a guide part 412 fixedly connected to the end of the reinforcement rib main part 411 away from the cylindrical body 1. The reinforcement main part 411 plays an anti-tearing role at the connection between the sealing skirt 32 and the cylindrical body 1; the upper surface of the guide part 412 is a guiding inclined surface, and the thickness of the guide part 412 gradually decreases from one end close to the reinforcement rib main part 411 to the other end. When the instrument is inserted and contacts the guide part 412, the instrument can be guided toward the sealing skirt 32, reducing the probability of the inclined convex prism 31 being punctured.

[0029] Preferably, the reinforcing rib 41 is further provided with a semicircular arc notch structure 4111, which is located between the two guide portions 412 and one end of which extends into the reinforcing rib main part 411. The semicircular arc notch structure 4111 can change or even the instrument reaction force transmitted from the gyrator sealing assembly 3, further reducing the risk of the sealing cap main structure being broken under stress.

[0030] Preferably, the sealing assembly 3 is provided with four inclined convex prisms 31, which are evenly distributed along the circumference of the axis of the cylindrical body 1. Correspondingly, the sealing skirt 32 is a cross structure, and the sealing skirt 32 can be opened and closed by setting an opening and closing seam 321 along the center line.

[0031] According to the actual application, preferably, the specific specification parameters of the sealing cap structure can be:

[0032] The positioning ring 2 includes a small circular ring 21 and a large circular ring 22 which are fixedly connected. The large circular ring 22 is located below the small circular ring 21. The large circular ring 22 has arc-shaped notches symmetrically arranged on both sides. The depth of the arc-shaped notches is less than one quarter of the thickness of the large circular ring 22.

[0033] The outside of the inclined convex prism 31 corresponds to a recessed portion 33, and the angle formed by the inclined ridgeline 311 of each symmetrical inclined convex prism 31 and the center point 5 of the bottom surface of the sealing cap is 80°;

[0034] The length of the reinforcing rib main part 411 along the side edge 312 of the inclined convex prism body 31 is 2.1 mm, and the length of the guide part 412 along the side edge 312 of the inclined convex prism body 31 is 1.4 mm.

[0035] Preferably, the above components are produced by using a mold and are integrally formed using silicone material.

[0036] Preferably, since the sealing component 3 is recessed downward to allow the instrument to pass through, the top of the semicircular arc notch structure 4111 (in the direction of the sealing cap opening) is first subjected to force. Therefore, a 1° reverse draft structure can be used in the production of the utility model. The top of the semicircular arc notch structure 4111 is more complete, which is more conducive to improving the stability of the structure.

[0037] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0038] Although the present invention uses more terms such as cylinder 1, positioning ring 2, sealing assembly 3, reinforcing structure 4, sealing cap bottom surface center point 5, small ring 21, large ring 22, inclined convex prism 31, sealing skirt 32, recessed portion 33, inclined ridge 311, side 312, opening and closing seam 321, reinforcing rib 41, reinforcing rib main part 411, semicircular arc notch structure 4111, and guide portion 412, the possibility of using other terms is not excluded. The use of these terms is only for the purpose of more conveniently describing and explaining the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A sealing cap with a reinforced structure, comprising a cylindrical body (1), a positioning ring (2) connected to the top of the cylindrical body (1), an opening provided at one end of the cylindrical body (1) away from the positioning ring (2), a sealing component (3) for opening or closing the opening provided at the opening, the sealing component (3) being connected to the positioning ring (2), characterized in that: The sealing assembly (3) comprises a plurality of inclined convex prisms (31), the side edges (312) of the inclined convex prisms (31) being connected to sealing skirts (32), the sealing skirts (32) on two adjacent inclined convex prisms (31) being in contact with each other, and further comprises a reinforcing structure (4) connected to the sealing skirts (32), the two sides of the reinforcing structure (4) being respectively connected to the side faces of two adjacent inclined convex prisms (31).

2. A sealing cap with a reinforced structure as claimed in claim 1, characterized in that: Four inclined convex prisms (31) are provided and are evenly distributed along the circumference of the axis of the cylindrical body (1); the outer periphery of the cylindrical body (1) corresponding to the inclined convex prisms (31) is a recessed portion (33).

3. A sealing cap with a reinforced structure as claimed in claim 1, characterized in that: The reinforcing structure (4) comprises a plurality of reinforcing ribs (41), the two sides of the reinforcing ribs (41) are respectively connected to the side surfaces of two adjacent inclined convex prisms (31), and the bottom is fixedly connected to the sealing skirt (32); one end of the reinforcing rib (41) is fixedly connected to the inner surface of the cylindrical body (1), and the other end extends radially in a direction close to the axis of the cylindrical body (1).

4. A sealing cap with a reinforced structure as claimed in claim 3, characterized in that: The reinforcing rib (41) comprises a reinforcing rib main part (411) and a guide portion (412) fixedly connected to an end of the reinforcing rib main part (411) away from the cylindrical body (1); the upper surface of the guide portion (412) is a guide slope; and the thickness of the guide portion (412) gradually decreases from one end close to the reinforcing rib main part (411) to the other end.

5. A sealing cap with a reinforced structure as claimed in claim 4, characterized in that: The reinforcing rib (41) further comprises a semicircular arc notch structure (4111), wherein the semicircular arc notch structure (4111) is located between the two guide portions (412) and one end of the semicircular arc notch structure (4111) extends into the reinforcing rib main part (411).

6. A sealing cap with a reinforced structure according to any one of claims 2 to 5, characterized in that: The angle formed by the inclined ridge lines (311) of each symmetrically inclined convex prism (31) and the center point (5) of the bottom surface of the sealing cap is 80°.

7. A sealing cap with a reinforced structure as claimed in claim 6, characterized in that: The sealing skirt (32) is a sealing structure with an opening and closing seam (321).

8. The sealing cap with a reinforced structure as claimed in claim 4, characterized in that: The length of the reinforcing rib main part (411) along the side edge (312) of the inclined convex prism (31) is 2.1 mm, and the length of the guide part (412) along the side edge (312) of the inclined convex prism (31) is 1.4 mm.

9. The sealing cap with a reinforced structure according to claim 1, characterized in that: The positioning ring (2) comprises a small circular ring (21) and a large circular ring (22) which are fixedly connected. The large circular ring (22) is located below the small circular ring (21). Arc-shaped notches are symmetrically arranged on both sides of the large circular ring (22). The depth of the arc-shaped notches is less than one quarter of the thickness of the large circular ring (22).

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