Pre-trepanning sealing cap of puncture outfit

Abstract

The utility model discloses a pretrepanning sealing cap of a puncture outfit, which relates to the technical field of puncture outfit sealing caps and comprises a device body, a cap groove is arranged on one side of the device body, a first opening and closing seam is formed on the inner wall of the cap groove, an inner cylinder is mounted in a cavity of the cap groove, and the outer diameter of the inner cylinder is smaller than the inner diameter of the cap groove. A first opening and closing seam is formed in the inner cylinder, a cylinder groove is formed in the side, away from the first opening and closing seam, of the inner cylinder, a second opening and closing seam is formed in the inner wall of the cylinder groove, and the first opening and closing seam corresponds to the second opening and closing seam. And the second opening and closing surface of the inner cylinder pushes the first opening and closing surface on the sealing cap to be opened, so that the puncture outfit is prevented from being in direct contact with the surface of the sealing cap, the air leakage phenomenon caused by the fact that the puncture outfit scratches the surface wall of the sealing cap is avoided, and the sealing performance and practicability of the pre-trepanning sealing cap of the puncture outfit can be effectively improved.

Description

Technical Field

[0001] This utility model relates to the technical field of puncture device sealing caps, specifically a pre-drilled sealing cap for a puncture device. Background Technology

[0002] The pre-drilled sealing cap of a trocar primarily protects the needle, preventing infection and cross-infection during the puncture process. Made mainly of materials like silicone and polypropylene, the cap offers good flexibility and durability. Its use is very simple: just slip it over the needle. After puncture, the cap automatically resets, covering the needle and minimizing its exposure time, effectively reducing the risk of infection and cross-infection.

[0003] Since the sealing cap is generally made of silicone, during the use of piercing instruments, the piercing instrument can cause scratches, tears, or damage to the surface of the sealing cap, which can lead to air leakage and reduce the sealing performance and usability of the sealing cap. Utility Model Content

[0004] The purpose of this invention is to provide a pre-drilled sealing cap for a puncture device, in order to solve the problem that the pre-drilled sealing cap of the current puncture device is easily damaged and its sealing performance is reduced.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pre-drilled sealing cap for a puncture device, comprising a device body, a cap groove provided on one side of the device body, a first seam formed on the inner wall of the cap groove, an inner cylinder installed in the cavity of the cap groove, the outer diameter of the inner cylinder being smaller than the inner diameter of the cap groove, a cylindrical groove formed on the side of the inner cylinder away from the first seam, a second seam formed on the inner wall of the cylindrical groove, the first seam and the second seam corresponding to each other, and both the first seam and the second seam being cross-shaped gaps.

[0006] Preferably, the opening of the cap groove is formed with an installation groove, and a retaining ring is adapted in the installation groove, which is fixedly sleeved on the outside of the inner cylinder.

[0007] Preferably, the horizontal cross section of the first seam is a cross-shaped cavity, and the side of the device body away from the cap groove opening is combined into four circumferentially arrayed first mating surfaces through the first seam.

[0008] Preferably, the horizontal cross section of the second seam is a cross-shaped cavity. The side of the inner cylinder away from the groove opening is combined into four circumferentially distributed second mating surfaces through the second seam. An abutment block is fixedly connected to the side of the second mating surface away from the groove cavity. The abutment block is in contact with the first mating surface and is made of silicone.

[0009] Preferably, four spheres arranged in a circumferential array are provided on the inner wall of the cylindrical groove. The four spheres are respectively fixedly connected to one side of the four second mating surfaces, and the four spheres are in contact with each other in sequence. The spheres are made of silicone.

[0010] Preferably, the outer side of the device body is provided with four concave surfaces arranged in a circumferential array, and the inner side of the concave surfaces forms an inwardly convex surface. The convex surface is located on the inner wall of the cap groove cavity, and the concave surfaces and the convex surface form an arc-shaped structure.

[0011] Preferably, an annular positioning ring is fixedly sleeved on the outer side of the device body.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This application provides an inner cylinder inside the pre-drilled sealing cap of the puncture device, with the inner wall being the first to contact the puncture device. The puncture device opens the inner cylinder, and the second mating surface of the inner cylinder pushes the first mating surface on the sealing cap to open. This avoids direct contact between the puncture device and the surface of the sealing cap, thus preventing the puncture device from scratching the surface of the sealing cap and causing air leakage. Therefore, it can effectively improve the sealing performance and practicality of the pre-drilled sealing cap of the puncture device.

[0014] 2. This application, by setting an installation groove and retaining ring, facilitates the replacement and cleaning of the inner cylinder, thus effectively reducing the replacement and usage costs of the pre-drilled sealing cap of the puncture device.

[0015] 3. By setting a sphere, this application utilizes the sphere to make initial contact with the puncture device, thereby reducing the friction between the puncture device and the inner wall of the inner cylinder, and thus reducing the wear effect on the inner wall of the inner cylinder, thereby increasing the service life of the inner cylinder. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the pre-drilled sealing cap of a puncture device according to the present invention;

[0017] Figure 2 This is a three-dimensional schematic diagram of the device body of a pre-drilled sealing cap for a puncture device according to the present invention;

[0018] Figure 3 This is a three-dimensional schematic diagram of the inner cylinder of the pre-drilled sealing cap of a puncture device according to the present invention;

[0019] Figure 4 This is a three-dimensional cross-sectional view of the device body of the pre-drilled sealing cap of a puncture device according to the present invention.

[0020] Figure 5 This is a three-dimensional cross-sectional view of the inner cylinder of the pre-drilled sealing cap of a puncture device according to the present invention;

[0021] Figure 6 This utility model provides a pre-drilled sealing cap for a puncture device. Figure 5 A magnified view of section A in the image.

[0022] The following are the labels in the diagram: 1. Device body; 2. Cap groove; 3. First sheet joint; 4. Cylinder groove; 5. Second sheet joint; 6. Mounting groove; 7. Snap ring; 8. First sheet mating surface; 9. Second sheet mating surface; 10. Abutting block; 11. Sphere; 12. Concave surface; 13. Protruding surface; 14. Annular positioning ring; 15. Inner cylinder. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example: Figure 1 - Figure 6 As shown, this utility model provides a technical solution for a pre-opening sealing cap for a puncture device, including a device body 1. A cap groove 2 is provided on one side of the device body 1. A first seam 3 is formed on the inner wall of the cap groove 2. An inner cylinder 15 is installed in the cavity of the cap groove 2. The outer diameter of the inner cylinder 15 is smaller than the inner diameter of the cap groove 2. A cylinder groove 4 is formed on the side of the inner cylinder 15 away from the first seam 3. A second seam 5 is formed on the inner wall of the cylinder groove 4. The first seam 3 and the second seam 5 correspond to each other. Both the first seam 3 and the second seam 5 are cross-shaped gaps.

[0025] The device body 1 is a pre-drilled sealing cap for the puncture device. The opening and closing effect of the sealing cap is a current technology and will not be described in detail. The device body 1 is fitted on the outside of the inner cylinder 15. The inner wall of the cap groove 2 does not contact the outer wall of the inner cylinder 15. The device body 1 and the inner cylinder 15 are connected by a retaining ring 7 and the inner wall of the mounting groove 6. The inner cylinder 15 is a smaller version of the device body 1. The second opening seam 5 area of ​​the inner cylinder 15 also has the effect of elastic opening and closing and recovery. When the puncture device passes through the device body 1 and the inner cylinder 15 from the cylinder groove 4, the puncture device will open the second opening surface 9 on the inner cylinder 15. The abutment block 10 on the second opening surface 9 is used to squeeze the first opening surface 8, so that the first opening surface 8 on the device body 1 opens without direct contact with the puncture device.

[0026] like Figure 1 - Figure 4 As shown, an installation groove 6 is formed at the opening of the cap groove 2, and a retaining ring 7 is adapted inside the installation groove 6. The retaining ring 7 is fixedly sleeved on the outside of the inner cylinder 15.

[0027] The retaining ring 7 is inserted into the cavity of the mounting groove 6, which facilitates the stability of the inner cylinder 15 in the cap groove 2 and makes it easy to disassemble and assemble the inner cylinder 15.

[0028] like Figure 2 - Figure 4 As shown, the horizontal cross section of the first seam 3 is a cross-shaped cavity. The side of the device body 1 away from the groove of the cap groove 2 is combined with the first seam 3 to form four circumferentially distributed first mating surfaces 8.

[0029] like Figure 5 and Figure 6 As shown, the horizontal cross section of the second seam 5 is a cross-shaped cavity. The side of the inner cylinder 15 away from the groove of the cylinder groove 4 is combined through the second seam 5 to form four circumferentially distributed second mating surfaces 9. The side of the second mating surface 9 away from the cavity of the cylinder groove 4 is fixedly connected to an abutment block 10. The abutment block 10 is in contact with the first mating surface 8 and is made of silicone.

[0030] like Figure 5 and Figure 6 As shown, four spheres 11 arranged in a circular array are provided on the inner wall of the cylindrical groove 4. The four spheres 11 are fixedly connected to one side of the four second mating surfaces 9 respectively. The four spheres 11 are in contact with each other in sequence. The spheres 11 are made of silicone.

[0031] When the puncture head is inserted into the cylindrical groove 4, it will first contact each ball 11, and the second mating surface 9 will open by using each ball 11.

[0032] like Figure 1 - Figure 5 As shown, the outer side of the device body 1 is provided with four concave surfaces 12 arranged in a circular array, and the inner side of the concave surfaces 12 forms an inwardly protruding protruding surface 13. The protruding surface 13 is located on the inner wall of the cavity of the cap groove 2, and the concave surfaces 12 and the protruding surface 13 form an arc-shaped structure.

[0033] like Figure 1 and Figure 2 As shown, an annular positioning ring 14 is fixedly sleeved on the outer side of the device body 1.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A pre-piercing sealing cap of a puncture device, comprising a device body (1) provided with a cap groove (2) on one side, a first zipper (3) is formed on the inner wall of the cap groove (2), characterized in that: An inner cylinder (15) is installed inside the cavity of the cap groove (2). A cylinder groove (4) is formed on the side of the inner cylinder (15) away from the first seam (3). A second seam (5) is formed on the inner wall of the cylinder groove (4). The first seam (3) and the second seam (5) correspond to each other.

2. A pre-pierced seal cap for a puncture device according to claim 1, wherein: The groove (2) has an installation groove (6) formed at the opening. The installation groove (6) is fitted with a retaining ring (7), which is fixedly sleeved on the outside of the inner cylinder (15).

3. A pre-pierced seal cap for a puncture device according to claim 2, wherein: The first seam (3) has a cross-shaped cavity in its horizontal cross section. The device body (1) is combined with the first seam (3) to form four circumferentially distributed first mating surfaces (8) on the side away from the groove of the cap groove (2).

4. A pre-pierced seal cap for a puncture device according to claim 3, wherein: The second seam (5) has a cross-shaped cavity in its horizontal cross section. The inner cylinder (15) is combined with the side away from the groove of the cylinder groove (4) to form four circumferentially distributed second mating surfaces (9) through the second seam (5). A contact block (10) is fixedly connected to the side of the second mating surface (9) away from the cavity of the cylinder groove (4). The contact block (10) is in contact with the first mating surface (8).

5. A pre-pierced seal cap for a puncture device according to claim 4, wherein: The inner wall of the cylindrical groove (4) is provided with four spheres (11) arranged in a circular array, and the four spheres (11) are respectively fixedly connected to one side of the four second mating surfaces (9).

6. A pre-pierced seal cap for a puncture device according to claim 1, wherein: The device body (1) has four recessed surfaces (12) arranged in a circular array on the outside. The recessed surfaces (12) form an inwardly protruding protruding surface (13) on the inside side. The protruding surface (13) is located on the inner wall of the cavity of the cap groove (2).

7. A pre-pierced seal cap for a puncture device according to claim 1, wherein: The outer side of the device body (1) is fixedly fitted with an annular positioning ring (14).

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