Capsule endoscope and its housing
The problem of unstable connection of the capsule endoscope shell was solved by combining threaded connection and glue, achieving stable connection and improved sealing, and avoiding damage to the shell.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING JINSHAN SCI & TECH GRP
- Filing Date
- 2025-04-23
- Publication Date
- 2026-07-14
AI Technical Summary
The existing capsule endoscope housing has difficulty in properly fastening the front and rear housings during connection due to the springback phenomenon of the FPC flexible cable, and the housing is easily damaged during the pressing process.
The system employs a combination of threaded connection and adhesive bonding. By setting threads on the connecting rings of the front and rear shells, the front shell is screwed onto the rear shell using the threaded connection. Adhesive is then applied to the connecting surfaces to avoid applying pressure to the front shell, thereby improving connection stability and sealing.
It achieves a stable connection between the front and rear shells, avoids damage to the shells, improves the sealing and stability of the connection, and is difficult to separate when the adhesive fails.
Smart Images
Figure CN224483957U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, and in particular to a capsule endoscope and its 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 capsule endoscope housing that can effectively improve the connection stability between the front and rear housings without damaging the housing. Another purpose is to provide a capsule endoscope including the above-mentioned capsule endoscope housing.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A capsule endoscope housing includes a front housing and a rear housing. The rear end of the front housing is provided with a first connecting ring, and the front end of the rear housing is provided with a second connecting ring. The first connecting ring and the second connecting ring are threaded together and sealed together by adhesive.
[0008] In some embodiments, the inner wall of the first connecting ring is provided with a first internal thread, and the outer wall of the second connecting ring is provided with a first external thread that mates with the first internal thread; or the outer wall of the first connecting ring is provided with a second external thread, and the inner wall of the second connecting ring is provided with a second internal thread that mates with the second external thread.
[0009] In some embodiments, the length of the first connecting ring is less than the length of the second connecting ring.
[0010] In some embodiments, a first limiting step is provided at the junction of the front shell and the first connecting ring, the first limiting step being used to limit the length of the front shell screwed onto the rear shell.
[0011] In some embodiments, a second limiting step is provided at the junction of the rear shell and the second connecting ring, and an annular gap is left between the second limiting step and the end face of the first connecting ring.
[0012] In some embodiments, a sealing ring is provided between the end face of the second limiting step and the first connecting ring.
[0013] In some embodiments, the thickness of the first connecting ring and the second connecting ring after being threaded 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.
[0014] In some embodiments, the inner wall of the first connecting ring and the outer wall of the second connecting ring are connected by threads, and the inner wall of the first connecting ring or the outer wall of the second connecting ring is provided with grooves distributed along the axial direction, the grooves being used to contain adhesive.
[0015] In some embodiments, the front end face of the front shell and the rear end face of the rear shell are both spherical.
[0016] In some embodiments, the capsule endoscope housing described in any of the preceding embodiments is included.
[0017] Compared with existing technologies, the above technical solution has the following advantages:
[0018] This utility model provides a capsule endoscope and its outer shell. During connection, adhesive is first applied to the threaded surfaces of the first and second connecting rings. Then, the capsule core is inserted into the rear shell, and finally, the front shell is screwed onto the rear shell. The threaded connection eliminates the need to apply pressure to the front shell, thus preventing damage. Furthermore, the combination with adhesive connection improves the stability of the connection between the front and rear shells. Even if the adhesive fails, the front and rear shells are unlikely to separate. The threads also enhance the adhesive's bonding effect and improve the sealing of the connection between the front and rear shells. 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 capsule endoscope shell provided in a specific embodiment of the present invention;
[0021] Figure 2A cross-sectional structural diagram of a capsule endoscope shell provided for a specific embodiment of this utility model;
[0022] Figure 3 A schematic diagram of the front shell of a capsule endoscope shell provided for a specific embodiment of this utility model;
[0023] Figure 4 This is a schematic diagram of the rear shell of a capsule endoscope shell according to a specific embodiment of the present invention.
[0024] The attached figures are labeled as follows:
[0025] 1. Front housing; 1-1. First connecting ring; 1-2. First internal thread; 1-3. First limiting step;
[0026] 2. Rear shell; 2-1. Second connecting ring; 2-2. First external thread; 2-3. Second limiting step;
[0027] 3. Annular gap. 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 4 .
[0030] This utility model provides a capsule endoscope shell, 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 1-1, integrally formed thereon. The front end of the rear shell 2 is provided with a second connecting ring 2-1, integrally formed thereon. The first connecting ring 1-1 and the second connecting ring 2-1 are threadedly connected and sealed with adhesive. During connection, adhesive can be applied to the threaded connection surfaces of the first connecting ring 1-1 and the second connecting ring 2-1, then the capsule core can be inserted into the rear shell 2, and finally the front shell 1 can be screwed onto the rear shell 2. The use of threaded connection eliminates the need to apply pressure to the front shell 1, thus avoiding damage to it. Furthermore, the combination with adhesive connection improves the stability of the connection between the front shell 1 and the rear shell 2. Even if the adhesive fails, the front shell 1 and the rear shell 2 are unlikely to separate. Moreover, by setting the thread, the adhesive coating area can be increased, thereby improving the connection effect. In addition, the adhesive connection also improves the sealing performance of the connection between the front shell 1 and the rear shell 2.
[0031] In some embodiments, such as Figures 2-4 As shown, the inner wall of the first connecting ring 1-1 is provided with a first internal thread 1-2, and the outer wall of the second connecting ring 2-1 is provided with a first external thread 2-2 that mates with the first internal thread 1-2. Specifically, the overall length of the front shell 1 is less than the overall length of the rear shell 2. When assembling the capsule core, the capsule core needs to be placed inside the rear shell 2. Therefore, providing the first external thread 2-2 on the outer wall of the second connecting ring 2-1 of the rear shell 2 can prevent scratching the capsule core. Also, considering that the machining difficulty of external threads is lower than that of internal threads, providing external threads on the relatively expensive rear shell 2 can reduce manufacturing costs. Alternatively, without considering the above factors, the following design can also be made: the outer wall of the first connecting ring 1-1 is provided with a second external thread, and the inner wall of the second connecting ring 2-1 is provided with a second internal thread that mates with the second external thread. The specific positions of the internal and external threads can be selected according to actual needs.
[0032] In some embodiments, the length of the first connecting ring 1-1 is less than the length of the second connecting ring 2-1, that is, the thread length provided on the first connecting ring 1-1 is less than the thread length provided on the second connecting ring 2-1. This design is mainly to take into account the factors of processing error. By reserving a certain connection allowance on the second connecting ring 2-1, it can be ensured that the thread of the first connecting ring 1-1 can be completely screwed onto the thread of the second connecting ring 2-1, thereby ensuring the connection stability of the front shell 1.
[0033] In some embodiments, a first limiting step 1-3 is provided at the junction of the front shell 1 and the first connecting ring 1-1. When the front shell 1 is screwed onto the second connecting ring 2-1 of the rear shell 2 via the first connecting ring 1-1, the first limiting step 1-3 will contact the end face of the second connecting ring 2-1, thus preventing the front shell 1 from continuing to screw. Therefore, the first limiting step 1-3 can limit the length of the front shell 1 screwed onto the rear shell 2, thereby ensuring the accuracy of the connection position between the front shell 1 and the rear shell 2.
[0034] In some embodiments, a second limiting step 2-3 is provided at the junction of the rear shell 2 and the second connecting ring 2-1. An annular gap 3 is left between the second limiting step 2-3 and the end face of the first connecting ring 1-1. When connecting, excess glue between the first connecting ring 1-1 and the second connecting ring 2-1 will be pushed into the annular gap 3. After the glue cures, a sealing structure can be formed, thereby ensuring the sealing of the connection between the front shell 1 and the rear shell 2.
[0035] In some embodiments, a sealing ring is provided between the end faces of the second limiting step 2-3 and the first connecting ring 1-1. During connection, the sealing ring can be first fitted onto the second connecting ring 2-1. Through the squeezing action of the end face of the first connecting ring 1-1, the sealing ring can be pressed against the annular gap 3 to achieve a sealing effect. By setting the sealing ring, the use of glue can be reduced, and the sealing effect is better.
[0036] In some embodiments, the thickness of the first connecting ring 1-1 and the second connecting ring 2-1 after being threaded 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. That is, the outer circumferential surface of the section after the first connecting ring 1-1 and the second connecting ring 2-1 are threaded together is flush with the outer circumferential surface of the front shell 1, and the inner circumferential surface is flush with the inner circumferential surface of the front shell 1, so as to ensure the smoothness of the outer and inner circumferential surfaces of the shell.
[0037] In some embodiments, the inner wall of the first connecting ring 1-1 and the outer wall of the second connecting ring 2-1 are connected by threads. The inner wall of the first connecting ring 1-1 or the outer wall of the second connecting ring 2-1 is provided with grooves distributed axially, meaning the threads on the inner wall of the first connecting ring 1-1 or the outer wall of the second connecting ring 2-1 are discontinuous threads. The grooves can also accommodate adhesive, improving the sealing performance when the first connecting ring 1-1 and the second connecting ring 2-1 are connected by threads.
[0038] In some embodiments, the front end face of the front shell 1 and the rear end face of the rear shell 2 are both spherical to improve the smoothness of the capsule endoscope housing during movement.
[0039] This utility model embodiment also provides a capsule endoscope, including the capsule endoscope shell provided in any of the above embodiments. Regarding the beneficial effects of the capsule endoscope, refer to the capsule endoscope shell in the above embodiments, which will not be repeated here.
[0040] 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.
[0041] 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.
[0042] The capsule endoscope and its 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 descriptions of the embodiments above are only for the purpose of helping to understand the core idea of this utility model. It should be noted that those skilled in the art can make several improvements and modifications 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 capsule endoscope housing, 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 (1-1) and the front end of the rear shell (2) is provided with a second connecting ring (2-1). The first connecting ring (1-1) and the second connecting ring (2-1) are threaded together and sealed by glue.
2. The capsule endoscope housing according to claim 1, characterized in that, The inner wall of the first connecting ring (1-1) is provided with a first internal thread (1-2), and the outer wall of the second connecting ring (2-1) is provided with a first external thread (2-2) that mates with the first internal thread (1-2); or the outer wall of the first connecting ring (1-1) is provided with a second external thread, and the inner wall of the second connecting ring (2-1) is provided with a second internal thread that mates with the second external thread.
3. The capsule endoscope housing according to claim 2, characterized in that, The length of the first connecting ring (1-1) is less than the length of the second connecting ring (2-1).
4. The capsule endoscope housing according to claim 3, characterized in that, A first limiting step (1-3) is provided at the junction of the front shell (1) and the first connecting ring (1-1). The first limiting step (1-3) is used to limit the length of the front shell (1) screwed onto the rear shell (2).
5. The capsule endoscope housing according to claim 4, characterized in that, A second limiting step (2-3) is provided at the junction of the rear shell (2) and the second connecting ring (2-1), and an annular gap (3) is left between the second limiting step (2-3) and the end face of the first connecting ring (1-1).
6. The capsule endoscope housing according to claim 5, characterized in that, A sealing ring is provided between the end faces of the second limiting step (2-3) and the first connecting ring (1-1).
7. The capsule endoscope housing according to claim 1, characterized in that, The thickness of the first connecting ring (1-1) and the second connecting ring (2-1) after being threaded 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).
8. The capsule endoscope housing according to claim 1, characterized in that, The inner wall of the first connecting ring (1-1) and the outer wall of the second connecting ring (2-1) are connected by threads. The inner wall of the first connecting ring (1-1) or the outer wall of the second connecting ring (2-1) is provided with grooves distributed along the axial direction, and the grooves are used to contain glue.
9. The capsule endoscope housing according to claim 1, characterized in that, The front end face of the front shell (1) and the rear end face of the rear shell (2) are both spherical.
10. A capsule endoscope, characterized in that, Includes the capsule endoscope housing as described in any one of claims 1 to 9.