Multi-cavity transparent cap
By designing a transparent cap for multi-channel purpose, the synchronous coordination operation and continuous suction of multi-instrument is achieved, and cross-infection is avoided through isolation coats and glass lenses, solving the problem that existing transparent caps cannot achieve synchronous coordination of multi-instrument, cannot continue suction and lack of isolation coats.
Patent Information
- Application Number
- CN202421215042.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-05-30
AI Technical Summary
Existing transparent caps cannot achieve synchronous coordination of multiple devices, and cannot continue to suction, and the lack of isolation coats may cause cross infection.
A transparent cap for multi-chamber purposes is designed, including a transparent cap body and multiple cavity channels. The transparent cap body is an annular shape. The multiple cavity channels include the first cavity channel, the second cavity channel, the third cavity channel, the fourth cavity channel and the fifth cavity channel. The first cavity channel is a flat cavity, the tail can be directly connected to the negative pressure suction device, and the tail ends of other cavity channels are connected to the sealing cap, allowing the synchronous cooperation of multiple instruments; the front end of the transparent cap body is equipped with an inclined surface with high inside and low outside, and the cavity channel opening is a conical opening, ensuring continuous suction ability; at the same time, isolating coats and glass lenses are arranged to form a physically fully enclosed space to avoid cross-infection.
Synchronous coordination with multiple devices is achieved, continuous aspiration is achieved, physical isolation of the endoscopy is enhanced, and cross-infection is avoided.
Smart Images
Figure CN222955401U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a transparent cap for multi-channel use, belonging to the technical field of medical devices. Background Art
[0002] The transparent cap is installed at the head end of the endoscope and used in conjunction with the endoscope. During the treatment or examination of a patient by the endoscope, the transparent cap can protect the lens and help to expand the lumen in the patient's body, provide a frontal image, improve visibility, and facilitate the implementation of treatment. It is widely used in the examination and treatment of various diseases under the endoscope.
[0003] For example, during the hemostasis process, for a bleeding site that is difficult to observe, or a bleeding site that is in a tangential position or a narrow lumen, the installation of a transparent cap can facilitate observation; at the esophageal inlet, foreign bodies are not easily exposed, and after installing the transparent cap, they can be clearly revealed, and sharp foreign bodies taken out can be dragged into the transparent cap to reduce damage to the esophageal and gastric mucosa.
[0004] In addition, during the operation of endoscopic submucosal dissection, the transparent cap can support a sufficiently large space in the gap of the incised mucosal layer for operations such as cutting, coagulation, and blunt dissection.
[0005] In the prior art, the transparent cap is generally connected by a single instrument, and the synchronous cooperation operation of multiple instruments cannot be achieved. Moreover, the suction port at the front end of the transparent cap is flat. As the liquid at the suction site is pumped out, the site shrinks until the mucosal tissue fits with the suction port to form a sealed space. When suction is performed next time, the transparent cap needs to be picked up and repositioned, so continuous suction cannot be achieved. In addition, the existing transparent cap has no isolation coat and cannot physically isolate the endoscope, which may cause cross-infection. Summary of the Invention
[0006] Aiming at the deficiencies of the prior art, the utility model provides a transparent cap for multi-channel use, which can achieve synchronous cooperation operation with multiple instruments during use and can achieve continuous suction.
[0007] The utility model adopts the following technical solutions:
[0008] A transparent cap for multi-channel use, comprising a transparent cap body and multiple channels. The transparent cap body is sleeved on the head end of an endoscope. The transparent cap body is circular. The multiple channels include a first channel, a second channel, a third channel, a fourth channel and a fifth channel. The first channel is a flat cavity with a relatively large cavity. The tail end can be directly connected to a negative pressure aspirator. After the connection is completed, the residue or liquid in the lumen can be aspirated by foot control. The tail end of the first channel is connected to the negative pressure aspirator. The second channel, the third channel, the fourth channel and the fifth channel are channels of the same size, and the inner diameter is preferably 2.8 mm (the same as the inner diameter of the biopsy channel of a medical endoscope), and the size is smaller than that of the first channel. The tail ends of the second channel, the third channel, the fourth channel and the fifth channel are all connected with a plug cap, and the plug cap can be removed when multiple instruments need to cooperate simultaneously.
[0009] The front end of the transparent cap body is provided with an inclined surface with a higher inner part and a lower outer part. The front end openings of the first channel, the second channel, the third channel, the fourth channel and the fifth channel are all located on the inclined surface, so the channel openings are conical openings and are not in the same plane, which ensures that there is a certain suction capacity after the transparent cap contacts the lumen tissue. When performing the suction operation, the suction channel is located at the front end of the transparent cap body. Due to the extraction of the liquid, this part shrinks until the mucosal tissue fits against the front end face of the transparent cap body, but the conical opening is not completely blocked and the suction operation can still be carried out. Moreover, since the opening of the suction channel is located at the head end of the transparent cap body, the opening can be completely immersed in the liquid for flushing, avoiding the inhalation of air and thus improving the suction efficiency. In particular, it has a good suction effect on the folded space of the ascending colon.
[0010] The opening can be rounded to avoid damage to the tissue when entering and exiting the patient's body.
[0011] The utility model is provided with multiple channels, and functions such as suction, flushing and accessory-assisted treatment can be carried out simultaneously.
[0012] Preferably, the front end of the transparent cap body is made of hard silicone material, which is used to support the patient's lumen and provide a clear vision for the operator; the rear end of the transparent cap body is made of soft silicone material, which is used for assembling with the endoscope. Both the hard silicone material and the soft silicone material are silicone, but only the hardness parameters are different. They can be integrally injection-molded during processing without subsequent assembly. The hardness parameter of the hard silicone material is relatively large, which can unfold the folded mucosal layer and play a good supporting role, and will not deform during the suction process. The hardness parameter of the soft silicone material at the rear end is relatively small and has a certain elasticity. The inner diameter aperture is slightly smaller than the outer diameter of the endoscope. When assembling with the endoscope, the head end of the endoscope can be directly inserted into the rear end of the transparent cap body until it abuts against the limit plate at the front end of the transparent cap body. The aperture of the rear end of the transparent cap body is small, and it can wrap the endoscope by stretching to prevent it from falling off.
[0013] Preferably, the plug cap is of a cylindrical structure, with one end integrally closed and the other end having a female thread of a Luer connector; the ends of the second channel, the third channel, the fourth channel, and the fifth channel are all provided with male threads of a Luer connector, and the two components are assembled by screwing the threads.
[0014] Preferably, the materials of the first channel, the second channel, the third channel, the fourth channel, and the fifth channel are PTFE or PE, which are relatively hard and provide support for the lumen; although the channels and the transparent cap body are made of two materials, they are an integrated structure formed by multiple injection moldings during the processing.
[0015] Preferably, an adapter is provided at the end of the channel. When the suction speed is low or there is a large amount of residual liquid, the adapter can be connected to any two of the first channel, the second channel, the third channel, the fourth channel, and the fifth channel, and then the adapter is connected to a negative pressure suction device or the like.
[0016] Preferably, the adapter is connected to the channel through a Luer connector.
[0017] During use, first install the endoscope and the transparent cap, use medical tape to paste the wall of the channel to the endoscope, and directly insert the tail of the first channel onto the negative pressure suction device. During the treatment process, turn on the negative pressure suction device, and the residue or liquid in the lumen can be aspirated by foot control. If other instruments are used, the plug cap of the corresponding channel can be opened, and the corresponding instrument can be inserted into the channel to perform related operations.
[0018] Preferably, an isolation outer layer is provided outside the transparent cap body. The isolation outer layer is a tubular structure with both ends open, and the material is silicone, similar to a contraceptive condom, except that the isolation outer layer has both ends open; the isolation outer layer can be installed independently. One end of the isolation outer layer is fixed to the front end of the transparent cap body through a fixing ring (separable), or directly welded to the front end of the transparent cap body (non-separable), and the other end is fixed to the endoscope body through a fixing ring.
[0019] The length of the isolation outer layer is less than the length of the cavity, and the cavity extends outside the isolation outer layer to connect with other devices.
[0020] Preferably, a circular groove is provided at the front end of the transparent cap body to facilitate the fixation of the isolation outer layer. In the integrated structure of the transparent cap and the isolation outer layer, a fixing ring is provided at the tail. After the isolation outer layer is unfolded to the corresponding position, the fixing ring is clamped to the endoscope body; in the split structure of the transparent cap and the isolation outer layer, fixing rings are provided at both the front and rear ends of the isolation outer layer. One fixing ring is placed in the circular groove of the transparent cap body, and after the isolation outer layer is unfolded to the corresponding position, the fixing ring at the tail is clamped to the endoscope body.
[0021] The fixing ring used can adopt the existing structure and will not be elaborated here.
[0022] Preferably, an annular clamping groove is provided on the inner surface of the transparent cap body, and a glass lens is provided in the annular clamping groove. During the processing, it is integrally injection-molded to form a sealed structure, dividing the inner cavity of the transparent cap body into two parts. When in use, the endoscope is directly inserted into the tail until the glass lens.
[0023] The transparent cap body, the glass lens and the isolation outer layer form a physically fully enclosed space, which can ensure that the patient's body fluid will not come into contact with the surface of the endoscope or the inner surface of the biopsy channel, avoiding cross-infection between different patients.
[0024] Preferably, the tail of the second cavity is connected to a syringe or a water injection device through a Luer connector for flushing the glass lens. The function of the isolation outer layer is to replace the cavity of the endoscope itself with the cavity of the transparent cap, so as to realize some functions of the endoscope, thus completely isolating the contact between the patient's body fluid and the endoscope body.
[0025] When in use, first install the endoscope on the transparent cap, unfold the isolation outer layer, paste the cavity wall tube on the endoscope body. The tail of the first cavity is directly inserted on the negative pressure aspirator, and the tail of the second cavity is connected to a syringe or a water injection device through a Luer connector for flushing the glass lens. During the use process, turn on the negative pressure aspirator, and the residue or liquid in the lumen can be aspirated by foot control. If other instruments are used, the sealing cap of the corresponding cavity can be opened, and the corresponding instrument can enter the cavity to perform relevant operations.
[0026] For the parts not detailed in the present utility model, the prior art can be adopted.
[0027] The beneficial effects of the present utility model are as follows:
[0028] While providing a clear view in the present utility model, one or more cavities can perform negative pressure aspiration, and the remaining cavities can allow the entry and exit of relevant treatment accessories, enabling synchronous cooperation operations with multiple instruments during the use process.
[0029] The front end of the transparent cap body of the present utility model is provided with an inclined surface. After the front end of the transparent cap body contacts the mucosal layer, the conical opening is not completely closed, and the aspiration function can still be performed, realizing continuous aspiration.
[0030] The present utility model is provided with an isolation outer layer and a glass lens, which can effectively conduct physical isolation, ensuring that the patient's body fluid will not come into contact with the surface of the endoscope or the inner surface of the biopsy channel, and avoiding cross-infection. BRIEF DESCRIPTION OF THE DRAWINGS
[0031] Figure 1 Schematic diagram of the structure of the transparent cap for multi-cavity use in an embodiment of the present utility model;
[0032] Figure 2 Schematic diagram of the multi-channel end structure of an embodiment of the present utility model;
[0033] Figure 3 Schematic diagram of the plugging cap structure in the present utility model;
[0034] Figure 4 Schematic diagram of the adapter structure in the present utility model;
[0035] Figure 5 Schematic diagram of the transparent cap for multi-channel use with a glass lens and an isolation jacket in an embodiment of the present utility model;
[0036] Figure 6 Schematic diagram of the annular groove in an embodiment of the present utility model;
[0037] Figure 7 Schematic diagram of the annular card slot in an embodiment of the present utility model;
[0038] Figure 8 Schematic diagram of the overall structure with an isolation jacket in an embodiment of the present utility model;
[0039] Wherein, 1 - transparent cap body, 2 - first channel, 3 - second channel, 4 - third channel, 5 - fourth channel, 6 - fifth channel, 7 - plugging cap, 8 - adapter, 9 - isolation jacket, 10 - glass lens, 11 - annular groove, 12 - annular card slot. Detailed implementation manners
[0040] To make the technical problems, technical solutions and advantages to be solved by the present utility model clearer, the following will be described in detail with reference to the accompanying drawings and specific embodiments, but not limited thereto. For those not elaborated in the present utility model, they are all conventional technologies in the art.
[0041] Embodiment 1
[0042] A transparent cap for multi-channel use, as Figure 1-4As shown in the figure, it includes a transparent cap body 1 and multiple channels. The transparent cap body 1 is sleeved on the head end of the endoscope. The transparent cap body 1 is circular. The multiple channels include a first channel 2, a second channel 3, a third channel 4, a fourth channel 5, and a fifth channel 6. The first channel 2 is a flat cavity with a relatively large cavity. The tail end can be directly connected to a negative pressure aspirator. After the connection is completed, the residue or liquid in the lumen can be aspirated by foot control. The tail end of the first channel 2 is connected to the negative pressure aspirator. The second channel 3, the third channel 4, the fourth channel 5, and the fifth channel 6 are channels of the same size, and the inner diameter is preferably 2.8 mm (the same as the inner diameter of the biopsy channel of the medical endoscope), and the size is smaller than that of the first channel. The tail ends of the second channel 3, the third channel 4, the fourth channel 5, and the fifth channel 6 are all connected to a blocking cap 7. When multiple instruments need to cooperate simultaneously, the blocking cap can be removed.
[0043] The front end of the transparent cap body 1 is provided with an inclined surface that is higher in the inner part and lower in the outer part. The front end openings of the first channel 2, the second channel 3, the third channel 4, the fourth channel 5, and the fifth channel 6 are all located on the inclined surface. Then the channel openings are conical openings and are not on the same plane, ensuring that there is a certain suction ability after the transparent cap contacts the lumen tissue. When performing the suction operation, the suction channel is located at the front end of the transparent cap body. Due to the extraction of the liquid, this part shrinks until the mucosal tissue fits against the front end face of the transparent cap body. However, the conical opening is not completely blocked and the suction operation can still be carried out. Moreover, since the opening of the suction channel is located at the head end of the transparent cap body, the opening can be completely immersed in the liquid for flushing, avoiding the inhalation of air and thus improving the suction efficiency. Especially for the folded space of the ascending colon, it has a good suction effect.
[0044] The opening can be rounded to avoid damaging the tissue when entering and exiting the patient's body.
[0045] The utility model is provided with multiple channels, which can simultaneously perform functions such as suction, flushing, and accessory-assisted treatment.
[0046] Embodiment 2
[0047] A transparent cap for multi-channel use, the structure of which is as shown in Embodiment 1. The difference is that the front end of the transparent cap body 1 is made of hard silicone material, which is used to support the patient's lumen and provide a clear vision for the operator; the rear end of the transparent cap body 1 is made of soft silicone material, which is used for assembly with the endoscope. Both the hard silicone material and the soft silicone material are silicone, but only the hardness parameters are different. They can be integrally injection-molded during processing without subsequent assembly. The hard silicone material has a larger hardness parameter, which can unfold the wrinkled mucosal layer and play a good supporting role, and will not deform during the suction process. The soft silicone material at the rear end has a smaller hardness parameter and has a certain elasticity. The inner diameter aperture is slightly smaller than the outer diameter of the endoscope. When assembling with the endoscope, the head end of the endoscope can be directly inserted into the rear end of the transparent cap body until it reaches the limit plate at the front end of the transparent cap body. The aperture at the rear end of the transparent cap body is small, and it can prevent detachment by stretching and wrapping the endoscope.
[0048] Embodiment 3
[0049] A transparent cap for multi-channel use, the structure of which is as shown in Embodiment 2. The difference is that, as Figure 3 shown, the blocking cap 7 is a cylindrical structure, one end is integrally closed, and the other end is provided with a female thread of a Luer connector; the tail ends of the second channel 3, the third channel 4, the fourth channel 5 and the fifth channel 6 are all provided with male threads of Luer connectors, and the assembly of the two components is realized by screwing the threads.
[0050] The materials of the first channel, the second channel, the third channel, the fourth channel and the fifth channel are PTFE, and the materials are relatively hard, providing support for the lumen; although the channels and the transparent cap body are made of two materials, they are an integrated structure formed by multiple injection moldings during the processing.
[0051] A adapter 8 is provided at the tail end of the channel. When the suction speed is low or there is a lot of residual liquid, the adapter 8 can be connected to any two of the first channel 2, the second channel 3, the third channel 4, the fourth channel 5 and the fifth channel 6, and then the adapter is connected to a negative pressure suction device or the like.
[0052] The adapter is connected to the channel through a Luer connector.
[0053] During use, first install the endoscope and the transparent cap, use medical tape to stick the tube wall of the channel to the endoscope, and directly insert the tail of the first channel on the negative pressure suction device. During the treatment process, turn on the negative pressure suction device, and the residue or liquid in the lumen can be aspirated by foot control. If other instruments are used, the blocking cap of the corresponding channel can be opened, and the corresponding instrument can be inserted into the channel to perform relevant operations.
[0054] Embodiment 4
[0055] A transparent cap for multi-channel use, the structure of which is as shown in Embodiment 2. The difference is that, asFigure 8 , an isolation outer coat 9 is provided outside the transparent cap body 1. The isolation outer coat 9 is a tubular structure with openings at both ends, and its material is silicone, similar to a contraceptive condom, except that the isolation outer coat has openings at both ends. The isolation outer coat can be installed independently. One end of the isolation outer coat 9 is fixed to the front end of the transparent cap body through a fixing ring (separable), or directly welded to the front end of the transparent cap body (non-separable), and the other end is fixed to the endoscope body through a fixing ring.
[0056] The length of the isolation outer coat is less than the length of the cavity, and the cavity extends outside the isolation outer coat to be connected to other devices.
[0057] Such as Figure 6 , a circular groove 11 is provided at the front end of the transparent cap body 1 to facilitate the fixation of the isolation outer coat 9. In the integrated structure of the transparent cap and the isolation outer coat, the tail is provided with a fixing ring. After the isolation outer coat is unfolded to the corresponding position, the fixing ring is clamped to the endoscope body. In the split structure of the transparent cap and the isolation outer coat, both the front and rear ends of the isolation outer coat are provided with fixing rings. One end fixing ring is placed in the circular groove 11 of the transparent cap body, and after the isolation outer coat is unfolded to the corresponding position, the tail fixing ring is clamped to the endoscope body.
[0058] The fixing ring used can adopt the existing structure and will not be elaborated here.
[0059] Such as Figure 7 , an annular slot 12 is provided on the inner surface of the transparent cap body 1, and a glass lens 10 is provided in the annular slot 12. During the processing, it is integrally injection-molded to form a sealed structure, dividing the inner cavity of the transparent cap body into two parts. When in use, the endoscope is directly inserted from the tail until the glass lens.
[0060] The transparent cap body, the glass lens and the isolation outer coat form a physically fully enclosed space, which can ensure that the patient's body fluid will not come into contact with the surface of the endoscope or the inner surface of the biopsy channel, avoiding cross-infection between different patients.
[0061] The tail of the second cavity 3 is connected to a syringe or a water injection device through a Luer connector for flushing the glass lens. The function of the isolation outer coat is to replace the cavity of the endoscope itself with the cavity carried by the transparent cap, so as to realize part of the functions of the endoscope, thus completely isolating the contact between the patient's body fluid and the endoscope body.
[0062] In use, first install the endoscope and the transparent cap, unfold the isolation coat, paste the wall of the lumen to the endoscope body. The tail of the first lumen is directly inserted into the negative pressure aspirator, and the tail of the second lumen is connected to a syringe or a water injection device through a Luer connector for flushing the glass lens. During use, turn on the negative pressure aspirator, and the residue or liquid in the lumen can be aspirated by foot control. If other instruments are used, the blocking cap of the corresponding lumen can be opened, and the corresponding instrument can be inserted into the lumen to perform related operations.
[0063] The above are the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.
Claims
1. A transparent cap for multiple cavities, characterized in that: It comprises a transparent cap body and a plurality of cavities, wherein the transparent cap body is sleeved on the head end of the endoscope, the transparent cap body is in a circular ring shape, the plurality of cavities comprise a first cavity, a second cavity, a third cavity, a fourth cavity and a fifth cavity, the first cavity is a flat cavity, the tail end of the first cavity is connected to a negative pressure aspirator; the second cavity, the third cavity, the fourth cavity and the fifth cavity are cavities of the same size, which is smaller than the first cavity, and the tail ends of the second cavity, the third cavity, the fourth cavity and the fifth cavity are all connected to a blocking cap; The front end of the transparent cap body is provided with an inclined surface which is higher inside and lower outside, and the front end openings of the first cavity, the second cavity, the third cavity, the fourth cavity and the fifth cavity are all located on the inclined surface.
2. The transparent cap for multiple cavities according to claim 1, characterized in that: The front end of the transparent cap body is made of hard silicone material, which is used to support the patient's lumen; the rear end of the transparent cap body is made of soft silicone material, which is used to be assembled with the endoscope.
3. The transparent cap for multiple cavities according to claim 1, characterized in that: The blocking cap is a cylindrical structure, one end of which is completely closed and the other end has a female thread of a Luer connector; the tail ends of the second cavity, the third cavity, the fourth cavity and the fifth cavity are all provided with male threads of a Luer connector.
4. The transparent cap for multiple cavities according to claim 3, characterized in that: The material of the first cavity, the second cavity, the third cavity, the fourth cavity and the fifth cavity is PTFE or PE.
5. The transparent cap for multiple cavities according to claim 4, characterized in that: An adapter is provided at the rear end of the cavity, and the adapter can be connected to any two cavities among the first cavity, the second cavity, the third cavity, the fourth cavity and the fifth cavity.
6. The transparent cap for multiple cavities according to claim 5, characterized in that: The adapter is connected to the cavity via a Luer connector.
7. The transparent cap for multiple cavities according to claim 1, characterized in that: An isolation coat is arranged outside the transparent cap body. The isolation coat is a cylindrical structure with openings at both ends and is made of silicone. One end of the isolation coat is fixed to the front end of the transparent cap body through a fixing ring, and the other end is fixed to the endoscope body through a fixing ring.
8. The transparent cap for multiple cavities according to claim 7, characterized in that: The front end of the transparent cap body is provided with an annular groove for facilitating fixing of the isolation coat.
9. The transparent cap for multiple cavities according to claim 7, characterized in that: The inner surface of the transparent cap body is provided with an annular groove, and a glass lens is arranged in the annular groove.
10. The transparent cap for multiple cavities according to claim 9, characterized in that: The tail of the second cavity is connected to a syringe or a water injection device through a Luer connector for flushing the glass lens.