A connecting ring and a connecting method of connecting a connecting ring and a braided tube

Abstract

The application discloses a connecting ring and a connecting method of the connecting ring and a braided tube, and relates to the technical field of connecting rings. The connecting ring comprises a tubular ring body, one end of the ring body is a first connecting end, the other end is a second connecting end, a plurality of cutting grooves are arranged on the first connecting end, and one end of the cutting groove is located at the edge of the first connecting end, so that the cutting groove is a half-closed cutting groove which can be opened and closed at one end. The braided tube is inserted into the first connecting end, and the connecting ring is sleeved and fixed outside the braided tube. The plurality of half-closed cutting grooves set the opening of the first connecting end as a structure which can be opened and closed. When the connecting ring is sleeved on other objects, the inner diameter of the first connecting end can be increased by pushing away the cutting grooves, so that the installation of the connecting ring is facilitated.

Description

Technical Field

[0001] This invention relates to the field of medical devices, and more particularly to a connecting ring and a method for connecting the connecting ring to a braided tube. Background Technology

[0002] An endoscope is an instrument that enters the body through natural passages to perform examinations or treatments. In order to facilitate entry into the body and accommodate the passage of various medical instruments, the insertion part of the endoscope is required to have the smallest possible outer diameter and the largest possible internal working channel.

[0003] Currently, the braided tubing and the serpentine skeleton in the insertion section are connected by a connecting ring. This existing ring, inserted into the braided tubing, occupies space within the tubing, reducing the usable working space inside the endoscope insertion section. Furthermore, the use of adhesive for fixation makes its effectiveness and strength uncontrollable, and it's impossible to determine whether the braided tubing and connecting ring are properly bonded. We need to design a connection structure that does not occupy internal space within the insertion section tubing and whose connection performance can be quantified and controlled. Summary of the Invention

[0004] In order to overcome at least one of the technical problems of the prior art, the present invention provides a connecting ring that is simple to process, easy and quick to install, and provides a more secure and reliable connection, as well as a method for connecting the connecting ring to the braided tube.

[0005] A connecting ring is provided, including a tubular ring body, one end of which is a first connecting end and the other end is a second connecting end. The first connecting end is provided with a plurality of grooves, one end of which is located at the edge of the first connecting end, making the groove a semi-closed groove that can be opened and closed at one end.

[0006] The aforementioned connecting ring has at least the following beneficial effects: several semi-closed grooves make the opening of the first connecting end a closable structure. When the connecting ring is fitted onto other objects, the inner diameter of the first connecting end can be increased by opening the grooves, which facilitates the installation of the connecting ring.

[0007] In some embodiments of the connecting ring described above, the ring body is also provided with several limiting through holes to facilitate operations such as dispensing adhesive, and can also cooperate with connecting blocks on the connector to make the connection between the connecting ring and the connector more secure.

[0008] In some embodiments of the connecting ring described above, the other end of the groove is provided with a first bending section that bends toward the first connecting end, eliminating the sharp point at the end of the groove and preventing the connecting ring from bending and breaking along the extension direction of the groove.

[0009] In some embodiments of the connecting ring described above, the other end of the groove is provided with a mounting through hole, which can prevent the connecting ring from breaking along the extension direction of the groove and also facilitate dispensing.

[0010] In some embodiments of the connecting ring described above, the groove includes a front groove and a rear groove, which are disconnected. The front groove is a semi-enclosed groove located on one side of the first connecting end, and the rear groove is a fully enclosed groove near the second connecting end. A groove that is too long will result in an excessively large opening, making it easy to detach from the connector. The groove is divided into two sections: the front groove is used to open and close the opening of the first connecting end, and the rear groove is used to increase the flexibility of the ring, making it easier for the ring to expand and contract.

[0011] In some embodiments of the connecting ring described above, the rear section groove is further provided with an auxiliary groove intersecting the front section groove at one end near the front section groove. This is equivalent to providing a cut at the front end of the rear section groove, which facilitates the separation of the front ends of the rear section grooves and increases the elasticity of the rear section groove.

[0012] In some embodiments of the connecting ring described above, the two ends of the auxiliary groove are bent toward the first connecting end, turning the auxiliary groove into an arc shape toward the first connecting end. This can extend the rear section of the groove while increasing the elasticity of the front section of the groove.

[0013] In some embodiments of the connecting ring described above, the two ends of the auxiliary groove are provided with second bending sections that bend towards the second connecting end, eliminating the sharp point at the end of the auxiliary groove and preventing the connecting ring from bending and breaking along the groove.

[0014] In some embodiments of the connecting ring described above, auxiliary mounting through holes are provided at both ends of the auxiliary groove, which can prevent the connecting ring from breaking along the extension direction of the groove and facilitate dispensing.

[0015] A method for connecting a connecting ring and a braided tube is also provided, including any of the connecting rings mentioned above and a braided tube, comprising the following steps: inserting the braided tube into the first connecting end of the connecting ring; inserting a mold core into the braided tube; and heating the connection between the braided tube and the connecting ring.

[0016] The above-mentioned connection method between the connecting ring and the braided tube has at least the following beneficial effects: the braided tube is inserted into the first connecting end of the connecting ring, and the groove on the connecting ring allows the first connecting end to be slightly open to facilitate the insertion of the braided tube. Moreover, the groove can also press against the elastic outer wall of the braided tube, making installation convenient and quick. It can also reduce the space occupied by the braided tube in the connecting ring and increase the inner diameter of the connection. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly explained below. Obviously, the described drawings are only a part of the embodiments of the present invention, and not all of them. Those skilled in the art can obtain other design schemes and drawings based on these drawings without creative effort.

[0018] Figure 1 This is a front view of the first embodiment of the connecting ring of the present invention;

[0019] Figure 2 This is a front view of the second embodiment of the connecting ring of the present invention;

[0020] Figure 3 This is a front view of the third embodiment of the connecting ring of the present invention;

[0021] Figure 4 This is a front view of the fourth embodiment of the connecting ring of the present invention;

[0022] Figure 5 This is a schematic diagram of the structure after the braided tube and connecting ring of the present invention are connected. Detailed Implementation

[0023] In the description of this invention, 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 the invention and for 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 the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] It should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections 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 invention based on the specific circumstances.

[0025] Reference Figures 1 to 4A connecting ring includes a tubular ring body 1, one end of which is a first connecting end 11, and the other end is a second connecting end 12. The first connecting end 11 has a plurality of grooves 3 evenly spaced along the circumference of the ring body 1. One end of each groove 3 is located at the edge of the first connecting end 11, making the groove 3 a semi-closed groove that can be opened and closed at one end. The groove 3 can be a normally closed slit or a separated slit.

[0026] Several semi-closed grooves 3 make the opening of the first connecting end 11 openable. When the connecting ring is put on other objects, the inner diameter of the first connecting end 11 can be changed by adjusting the distance of the opening of the grooves 3. When the first connecting end 11 is open, it is convenient to install the connecting ring on the outside of the connector. When the first connecting end 11 is retracted, it can be more firmly fixed on the outside of the connector.

[0027] See attached document Figure 1-4 In various embodiments, the ring body 1 is further provided with a plurality of limiting through holes 4. The limiting through holes 4 are disposed between two adjacent grooves 3. The limiting through holes 4 are elongated strips extending from the first connecting end 11 to the second connecting end 12. In other embodiments not shown, the limiting through holes 4 can also be configured as a group of through holes composed of a plurality of adjacent through holes, or a group of through holes composed of a plurality of parallel strip-shaped through holes. The shape of the limiting through holes 4 includes, but is not limited to, the shapes described above. After the connecting ring and the connecting member are fixed, glue can be applied into the limiting through holes 4 for fixation. In other embodiments, the limiting through holes 4 can also cooperate with the protruding connecting blocks on the connecting member for positioning, making the connection between the connecting ring and the connecting member more secure.

[0028] In the appendix Figure 1 In the first embodiment, the other end of the groove 3 is provided with a first bent section 34 that bends towards the first connecting end. Besides the arc-shaped curve shown in the figures, the first bent section 34 can also be configured as multiple straight lines connected together. (See attached figure...) Figure 2 In the second embodiment, a mounting through hole 35 is provided at the other end of the groove 3. When the left and right sides of the groove 3 separate along the groove 3, the tip at the end of the groove 3 is subjected to tensile forces in both directions, causing the tip of the groove 3 to tear.

[0029] Both the first bending section 34 and the mounting through hole 35 eliminate the sharp point at the end of the groove 3, distributing the lateral tensile force along the edges of the first bending section 34 and the mounting through hole 35 to multiple directions, thus preventing the groove 3 from tearing and breaking in the extension direction. Furthermore, the other end of the connecting ring needs to be connected to the bent tube; the mounting through hole 35 facilitates the application of adhesive after the bent tube and connecting ring are fixed, making the connection between the connecting ring and the bent tube more secure.

[0030] Reference Appendix Figure 3 and 4In the third and fourth embodiments, the groove 3 includes a front groove 31 and a rear groove 32, which are disconnected from each other. The front groove 31 is a semi-enclosed groove located on one side of the first connecting end 11, and the rear groove 32 is a fully enclosed groove near the second connecting end 12.

[0031] If the groove 3 is too short, the elasticity is too small, making it inconvenient to open the first connecting end 11. If the groove 3 is too long, the elasticity will be too large, and the first connecting end 11 will easily deform and open, making it easy to detach from the connector. The groove 3 is divided into two sections. The shorter front section 31 is used to open and close the opening of the first connecting end 11, and the longer rear section 32 is used to increase the flexibility of the ring body 1, so that the middle part of the ring body 1 can also expand and contract. The ring body 1 can accommodate connectors of slightly larger size and can be pressed tightly against the connector.

[0032] When the groove 3 is set to two sections, a first bending section 34 and / or mounting through hole 35 are provided at the end of the front section groove 31 and the rear section groove 32 near the second connecting end 12, which is also used to prevent the ends of the front section groove 31 and the rear section groove 32 from tearing off.

[0033] The rear section groove 32 is further provided with an auxiliary groove 33 intersecting the rear section groove 32 at one end near the front section groove 31. This is equivalent to providing a cut at the front end of the rear section groove 32, allowing the front end of the rear section groove 32 to separate to the left and right. When the connecting ring bends, it increases the elasticity of the rear section groove 32, making it easier for the connector to be inserted into the connecting ring.

[0034] The two ends of the auxiliary groove 33 are bent towards the first connecting end 11, transforming the auxiliary groove 33 into an arc shape bent towards the first connecting end 11. Besides the concave shape shown in the attached figure, the shape of the auxiliary groove 33 can also be an arc or a pointed shape. The bent auxiliary groove 33 extends the rear cutting groove 32, allowing the front end of the rear cutting groove 32 to extend forward to the end of the auxiliary groove 33. The longer the rear cutting groove 32, the better the elasticity of the rings 1 on both sides of the rear cutting groove 32, and the easier it is to undergo elastic deformation. Moreover, when the front cutting groove 31 is expanded outward, the auxiliary groove 33 applies an inward pulling force to the front cutting groove 31, helping the front cutting groove 31 to return to its tightened state. Preferably, the two ends of the auxiliary groove 33 extend forward to both sides of the front cutting groove 32, cutting the ring walls on both sides of the front cutting groove 32, resulting in a larger range of motion for the thin sheets on both sides, increasing the elasticity of the front cutting groove 31.

[0035] The auxiliary groove 33 has a second bent section 331 at both ends that bends toward the second connecting end 12. The auxiliary groove 33 has an auxiliary mounting through hole 332 at both ends. This eliminates the sharp point at the end of the auxiliary groove 33, prevents the connecting ring from breaking along the extension direction of the auxiliary groove 33, and facilitates dispensing.

[0036] Reference manual attached Figure 5 The paper also discloses a braided tube 5 connection structure, including any of the aforementioned connecting rings and a braided tube 5. The braided tube 5 is inserted into the first connecting end 11 of the connecting ring and then heat-fused for fixation. During assembly, the first connecting end 11 of the connecting ring is slightly opened, and the braided tube 5 is inserted into the first connecting end 11 of the connecting ring for the first connection step. Then, a mold core is inserted into the braided tube 5 to fix the braided tube 5 inside the connecting ring, and a mold head is provided on the outer sleeve of the connecting ring. Next, the connection between the braided tube 5 and the connecting ring is heated, causing the braided tube 5 to melt. At the same time, the mold core extrudes the braided tube 5 outward, and the mold head restricts the outer diameter of the connecting ring, squeezing the melted braided tube 5 into the groove of the connecting ring. After the heating ends and the braided tube 5 cools and solidifies, the braided tube 5 is embedded in the connecting ring, achieving connection and fixation. After being extruded by the mold core, part of the braided tube 5 is embedded in the connecting ring, so the wall thickness of the braided tube 5 is reduced and the inner diameter is increased, making the ratio of the inner diameter of the pipe to the outer diameter of the pipe at the connection point greater than 0.8. That is, the internal space of the braided tube 5 reaches 80% of the outer dimension of the connecting ring, which can make great use of the internal space of the connecting ring.

[0037] During heating, a heating core is inserted inside the braided tube 5. While heating, the core presses the braided tube 5 outwards, causing the molten adhesive to overflow from the groove in the connecting ring. After heating, the overflowing adhesive embeds into the groove 3, achieving a nested connection between the braided tube 5 and the connecting ring. When the connecting ring has a limiting through hole 2, the limiting through hole 2 also serves to fix the overflow adhesive. Therefore, the limiting through hole 2 extends axially along the ring body 1, connecting all overflow points in the axial direction, resulting in a stronger nested bond between the braided tube 5 and the connecting ring in the axial direction.

[0038] The above is a detailed description of the preferred embodiments of the present invention. The described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention. Other embodiments that can be obtained are all within the scope of protection of the present invention.

Claims

1. A connecting ring, characterized in that: include A tubular ring (1), one end of which is a first connecting end (11) and the other end is a second connecting end (12); A plurality of grooves (3) are provided on the first connecting end (11). One end of the groove (3) is located at the edge of the first connecting end (11), making the groove (3) a semi-closed groove that can be opened and closed at one end. The groove (3) includes a front groove (31) and a rear groove (32). The front groove (31) and the rear groove (32) are disconnected. The front groove (31) is a semi-closed groove located on one side of the first connecting end (11). The rear groove (32) is a fully closed groove close to the second connecting end (12). The rear groove (32) is also provided with an auxiliary groove (33) that intersects with the rear groove (32) at one end close to the front groove (31). The two ends of the auxiliary groove (33) are bent toward the first connecting end (11) respectively.

2. The connecting ring according to claim 1, characterized in that: The ring (1) is also provided with several limiting through holes (2).

3. The connecting ring according to claim 1, characterized in that: The other end of the groove (3) is provided with a first bent section (34) that bends toward the first connecting end.

4. The connecting ring according to claim 1, characterized in that: The other end of the groove (3) is provided with an installation through hole (35).

5. The connecting ring according to claim 1, characterized in that: The auxiliary groove (33) has a second bent section (331) at both ends that bends toward the second connecting end (12).

6. The connecting ring according to claim 5, characterized in that: The auxiliary groove (33) is provided with auxiliary mounting through holes (332) at both ends.

7. A method for connecting a connecting ring and a braided tube, characterized in that: Including the connecting ring as described in any of the preceding claims, and the braided tube (5), the process includes the following steps: Insert the braided tube (5) into the first connecting end (11) of the connecting ring; A mold core is inserted inside the braided tube (5); The connection between the braided tube (5) and the connecting ring is heated.

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