Capsule endoscope and snap-on shell thereof

Abstract

The utility model discloses a capsule endoscope and buckle connection type shell thereof, include: front shell and back shell, the rear end of front shell is equipped with first connecting ring, and the front end of back shell is equipped with second connecting ring, and first connecting ring and second connecting ring are mutually nested and are connected through buckle, and first connecting ring and second connecting ring are still bonded through glue. When assembling, can first coat the glue on the contact surface of first connecting ring and second connecting ring, then first connecting ring is connected in series on second connecting ring along the axial direction, until through buckle and connect, under the action of buckle, can prevent front shell from separating from back shell, and in the process of glue solidification, need not exert pressure to front shell, thereby can avoid damaging front shell. First connecting ring and second connecting ring are bonded through glue, not only can play the role of reinforcing, but also can play the role of sealing, thereby can effectively improve the connecting effect of front shell and back shell.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a capsule endoscope and its snap-fit ​​connecting shell. Background Technology

[0002] The outer shell of a capsule endoscope typically consists of a front shell and a rear shell. After the capsule core is placed inside the outer shell, the front shell and the rear shell are then glued together.

[0003] Because of the FPC flexible flat cables between the PCB boards of the capsule core, a springback phenomenon occurs. Therefore, when the capsule core is installed into the outer shell, a downward pressing pre-tightening force is required. After the front shell is connected to the back shell, the upward spring force of the capsule core makes it difficult for the front and back shells to fit together properly. Without external pressure, the front shell will float up. At this point, external force or tooling is needed to press the front shell down, allowing the adhesive to cure. Only after the pressing is removed can the front and back shells be firmly bonded. Since the front shell is optically transparent, scratches, dirt, and minor deformations may occur after tooling pressing.

[0004] Therefore, how to improve the connection stability of the capsule endoscope shell is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide a snap-fit ​​connecting shell for a capsule endoscope, which can effectively improve the connection stability between the front and rear shells without damaging the shell. Another purpose is to provide a capsule endoscope including the above-mentioned snap-fit ​​connecting shell for a capsule endoscope.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A snap-fit ​​shell for a capsule endoscope includes a front shell and a rear shell. The rear end of the front shell is provided with a first connecting ring, and the front end of the rear shell is provided with a second connecting ring. The first connecting ring and the second connecting ring are nested together and connected by snap-fit. The first connecting ring and the second connecting ring are also bonded together by adhesive.

[0008] In some embodiments, the inner wall of the first connecting ring is provided with a snap-fit ​​protrusion, and the outer wall of the second connecting ring is provided with a snap-fit ​​groove that cooperates with the snap-fit ​​protrusion.

[0009] In some embodiments, the inner sidewall of the first connecting ring is provided with a plurality of snap-fit ​​protrusions distributed in a circumferential direction, and the outer sidewall of the second connecting ring is provided with a plurality of snap-fit ​​grooves distributed in a circumferential direction, wherein the plurality of snap-fit ​​protrusions and the plurality of snap-fit ​​grooves are snapped together in a one-to-one manner.

[0010] In some embodiments, the length of the first connecting ring is less than the length of the second connecting ring, the inner diameter of the first connecting ring is less than the inner diameter of the front shell, and a first limiting step is provided at the junction of the front shell and the first connecting ring. The first limiting step is used to limit the axial length of the first connecting ring sleeved on the second connecting ring.

[0011] In some embodiments, the outer diameter of the second connecting ring is smaller than the outer diameter of the rear shell, and a second limiting step is provided at the junction of the outer periphery of the rear shell and the second connecting ring.

[0012] In some embodiments, the outer sidewall of the second connecting ring is provided with a guide strip extending axially thereon, and the inner sidewall of the first connecting ring is provided with a guide groove extending axially thereon and corresponding to the guide strip. The first connecting ring is used to be sleeved on the second connecting ring under the guidance of the guide groove and the guide strip.

[0013] In some embodiments, a sealing ring is provided between the end face of the first connecting ring and the second limiting step.

[0014] In some embodiments, the overall thickness of the first connecting ring and the second connecting ring after they are snapped together is equal to the thickness of the front shell, and the thickness of the front shell is equal to the thickness of the rear shell.

[0015] In some embodiments, a guide slope is provided on the inner sidewall of the opening of the first connecting ring facing the second connecting ring.

[0016] A capsule endoscope, comprising the snap-fit ​​housing of the capsule endoscope as described in any of the preceding claims.

[0017] Compared with existing technologies, the above technical solution has the following advantages:

[0018] This utility model provides a capsule endoscope and its snap-fit ​​connecting housing. During assembly, adhesive is applied to the contact surfaces of the first and second connecting rings. The first connecting ring is then axially fitted onto the second connecting ring until it is snapped in place. The snap-fit ​​mechanism prevents the front housing from detaching from the rear housing. Furthermore, no pressure is applied to the front housing during the adhesive curing process, thus avoiding damage. The adhesive bonding of the first and second connecting rings not only reinforces the structure but also provides a seal, effectively improving the connection between the front and rear housings. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a snap-fit ​​shell for a capsule endoscope, provided in a specific embodiment of the present invention.

[0021] Figure 2 A schematic diagram of the front shell of a snap-fit ​​type outer shell for a capsule endoscope provided in a specific embodiment of this utility model;

[0022] Figure 3 A schematic diagram of the bottom structure of the front shell of a capsule endoscope snap-fit ​​type outer shell provided for a specific embodiment of this utility model;

[0023] Figure 4 A schematic diagram of the rear shell of a capsule endoscope snap-fit ​​type outer shell provided for a specific embodiment of this utility model;

[0024] Figure 5 This is a cross-sectional view of a snap-fit ​​shell for a capsule endoscope, provided as a specific embodiment of the present invention.

[0025] The attached figures are labeled as follows:

[0026] 1-Front shell, 11-First connecting ring, 111-Snap-fit ​​protrusion, 112-Guide slope, 113-First limiting step;

[0027] 2-Rear shell, 21-Second connecting ring, 211-Snap-fit ​​groove, 212-Second limiting step. Detailed Implementation

[0028] 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.

[0029] Please refer to Figures 1 to 5 .

[0030] This utility model provides a snap-fit ​​outer shell for a capsule endoscope, comprising a front shell 1 and a rear shell 2. The rear end of the front shell 1 is provided with a first connecting ring 11, and the front end of the rear shell 2 is provided with a second connecting ring 21. The first connecting ring 11 is integrally formed at the rear end of the front shell 1, and the second connecting ring 21 is integrally formed at the front end of the rear shell 2, for example, by injection molding. The first connecting ring 11 and the second connecting ring 21 are nested together and connected by snap-fit. The first connecting ring 11 can be nested around the outer periphery of the second connecting ring 21, or the second connecting ring 21 can be nested around the outer periphery of the first connecting ring 11. The first connecting ring 11 and the second connecting ring 21 are also bonded together with adhesive. During assembly, adhesive can be applied to the contact surfaces of the first connecting ring 11 and the second connecting ring 21, and then the first connecting ring 11 is axially nested onto the second connecting ring 21 until it is snapped together. The snap-fit ​​prevents the front shell 1 from detaching from the rear shell 2. Furthermore, no pressure needs to be applied to the front shell 1 during the adhesive curing process, thus avoiding damage to the front shell 1. The first connecting ring 11 and the second connecting ring 21 are bonded together with glue, which not only strengthens the connection but also seals it, thus effectively improving the connection between the front shell 1 and the rear shell 2.

[0031] In some embodiments, such as Figure 2 and Figure 3 As shown, the inner wall of the first connecting ring 11 is provided with a snap-fit ​​protrusion 111. The snap-fit ​​protrusion 111 is preferably a structure with a right-angled triangular cross-section, such as... Figure 4 As shown, the outer sidewall of the second connecting ring 21 is provided with a locking groove 211 that cooperates with the locking protrusion 111. Further, the inner sidewall of the first connecting ring 11 is provided with multiple locking protrusions 111 distributed along the circumferential direction, and the outer sidewall of the second connecting ring 21 is provided with multiple locking grooves 211 distributed along the circumferential direction. The multiple locking protrusions 111 and multiple locking grooves 211 are locked in a one-to-one manner. For example, three locking protrusions 111 can be provided on the inner sidewall of the first connecting ring 11, and three locking grooves 211 can be provided on the outer sidewall of the second connecting ring 21. Through the multiple locking protrusions 111 and locking grooves 211, the locking stability of the first connecting ring 11 and the second connecting ring 21 can be improved.

[0032] In some embodiments, such as Figure 5 As shown, the length of the first connecting ring 11 is less than the length of the second connecting ring 21, and the inner diameter of the first connecting ring 11 is less than the inner diameter of the front shell 1. There is a first limiting step 113 at the junction of the front shell 1 and the first connecting ring 11. During assembly, when the first limiting step 113 contacts the end face of the second connecting ring 21, it will prevent the front shell 1 from continuing to advance. Therefore, the first limiting step 113 can limit the axial length of the first connecting ring 11 sleeved on the second connecting ring 21, thereby ensuring the accuracy of the connection position between the two.

[0033] In some embodiments, the outer diameter of the second connecting ring 21 is smaller than the outer diameter of the rear shell 2, and a second limiting step 212 is provided at the junction of the outer periphery of the rear shell 2 and the second connecting ring 21. When the length of the first connecting ring 11 is less than the length of the second connecting ring 21, after assembly, there is an annular gap between the end face of the first connecting ring 11 and the second limiting step 212. A sealing ring can be provided in this annular gap to improve the sealing performance of the shell. To ensure that the thickness of the first connecting ring 11 and the second connecting ring 21 is consistent with the side wall thickness of the shell after assembly, the overall thickness of the first connecting ring 11 and the second connecting ring 21 after snapping together is equal to the thickness of the front shell 1, and the thickness of the front shell 1 is equal to the thickness of the rear shell 2.

[0034] In some embodiments, the outer sidewall of the second connecting ring 21 is provided with a guide strip extending axially therefrom, and the inner sidewall of the first connecting ring 11 is provided with a guide groove extending axially therefrom and corresponding to the guide strip. During assembly, the guide groove is aligned with the guide strip, and then the front shell 1 is moved axially. The first connecting ring 11 can then be fitted onto the second connecting ring 21 under the guidance of the guide groove and the guide strip. The guide strip and the guide groove can play a positioning role in the assembly of the front shell 1, eliminating the trouble of aligning the various sets of snap-fit ​​protrusions 111 and snap-fit ​​grooves 211, thereby improving the efficiency of user assembly. In addition, the guide strip can also restrict the rotation of the front shell 1 around its axis, thereby ensuring the connection stability between the front shell 1 and the rear shell 2.

[0035] In some embodiments, such as Figure 2 As shown, the inner wall of the opening of the first connecting ring 11 facing the second connecting ring 21 is provided with a guide slope 112. The guide slope 112 facilitates the installation of the front shell 1 onto the rear shell 2.

[0036] This utility model embodiment also provides a capsule endoscope, including the capsule endoscope snap-fit ​​connected housing of any of the above-mentioned embodiments. Regarding the beneficial effects of the capsule endoscope, please refer to the capsule endoscope snap-fit ​​connected housing provided in the above embodiments, which will not be repeated here.

[0037] This utility model embodiment also provides a capsule endoscope, including the capsule endoscope snap-fit ​​connected housing provided in any of the above embodiments. Regarding the beneficial effects of the capsule endoscope, refer to the capsule endoscope snap-fit ​​connected housing in the above embodiments, which will not be repeated here.

[0038] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0039] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0040] The capsule endoscope and its snap-fit ​​connecting housing provided by this utility model have been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A snap-fit ​​housing for a capsule endoscope, comprising: The front shell (1) and the rear shell (2) are characterized in that the rear end of the front shell (1) is provided with a first connecting ring (11) and the front end of the rear shell (2) is provided with a second connecting ring (21). The first connecting ring (11) and the second connecting ring (21) are fitted together and connected by a snap fastener. The first connecting ring (11) and the second connecting ring (21) are also bonded together by adhesive.

2. The capsule endoscope snap-fit ​​connecting housing according to claim 1, characterized in that, The inner wall of the first connecting ring (11) is provided with a snap-fit ​​protrusion (111), and the outer wall of the second connecting ring (21) is provided with a snap-fit ​​groove (211) that cooperates with the snap-fit ​​protrusion (111).

3. The capsule endoscope snap-fit ​​housing according to claim 2, characterized in that, The inner wall of the first connecting ring (11) is provided with a plurality of snap-fit ​​protrusions (111) distributed along the circumferential direction, and the outer wall of the second connecting ring (21) is provided with a plurality of snap-fit ​​grooves (211) distributed along the circumferential direction. The plurality of snap-fit ​​protrusions (111) and the plurality of snap-fit ​​grooves (211) are snapped together one by one.

4. The capsule endoscope snap-fit ​​housing according to claim 3, characterized in that, The length of the first connecting ring (11) is less than the length of the second connecting ring (21), and the inner diameter of the first connecting ring (11) is less than the inner diameter of the front shell (1). The front shell (1) has a first limiting step (113) at the junction with the first connecting ring (11). The first limiting step (113) is used to limit the axial length of the first connecting ring (11) sleeved on the second connecting ring (21).

5. The capsule endoscope snap-fit ​​connecting housing according to claim 4, characterized in that, The outer diameter of the second connecting ring (21) is smaller than the outer diameter of the rear shell (2), and the outer periphery of the rear shell (2) has a second limiting step (213) at the junction of the second connecting ring (21).

6. The capsule endoscope snap-fit ​​housing according to claim 5, characterized in that, The second connecting ring (21) has a guide bar extending along its axial direction on its outer side wall, and the first connecting ring (11) has a guide groove extending along its axial direction and corresponding to the guide bar on its inner side wall. The first connecting ring (11) is used to be sleeved on the second connecting ring (21) under the guiding action of the guide groove and the guide bar.

7. The capsule endoscope snap-fit ​​housing according to claim 5, characterized in that, A sealing ring is provided between the end face of the first connecting ring (11) and the second limiting step (213).

8. The capsule endoscope snap-fit ​​housing according to claim 1, characterized in that, The overall thickness of the first connecting ring (11) and the second connecting ring (21) after being snapped together is equal to the thickness of the front shell (1), and the thickness of the front shell (1) is equal to the thickness of the rear shell (2).

9. The capsule endoscope snap-fit ​​housing according to claim 1, characterized in that, The first connecting ring (11) has a guide slope (112) on the inner side wall of the opening facing the second connecting ring (21).

10. A capsule endoscope, characterized in that, Includes the snap-fit ​​housing for capsule endoscopes as described in any one of claims 1 to 9.

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