Disposable self-destruction limiting type tip cap

Abstract

A disposable self-destruction limit type tip cap relates to the technical field of medical equipment, and comprises a tip cap and an enteroscope probe matched with the tip cap in a sleeved mode, a probe window with an upward opening is formed in the side wall of the tip cap, and a containing space used for installing the enteroscope probe in a sleeved mode is formed in the tip cap. The enteroscope probe can movably stretch into the containing space to be assembled with the tip cap, and a rotary clamping mechanism is arranged between the enteroscope probe and the tip cap. According to the utility model, possible risks are prevented from design. The possibility of medical disputes is avoided, and a new reform mode is brought to novel medical minimally invasive surgery. And the design is a prospective innovative design. And the system can be used in medical units with different extensive levels. Therefore, the combination of the product is an ideal product which is easy to operate, small in trauma and accurate in positioning, is not different from the use of a traditional endoscope, and reduces medical disputes.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and particularly relates to a disposable self-destructing limit type tip cap. Background Art

[0002] Since the inspection and treatment of digestive endoscopes have been clinically used in China, they have become more and more mature and important medical devices for multiple treatments. In addition to use and inspection, the cleaning and disinfection work after each product use has always been an important task that cannot be ignored. Avoiding cross-infection caused by improper cleaning and disinfection is also an important part of the maintenance of endoscopes. However, because endoscopes are used in different parts and are a kind of precision and complex products, although they are designed to be convenient for use and operation, and also avoid being too complex to fully achieve the functions of cleaning and disinfection, careful consideration is given to the selection of materials and the design of structures. The current main products of the digestive tract include the main products of gastroscopes, colonoscopes, and duodenoscopes. Each digestive tract product has a working channel for image display, insertion part, bending angle, sampling and treatment. In order to keep the image clear, it is necessary to have channels for water supply, air supply, and suction for mirror surface cleaning.

[0003] The difference between the duodenoscope and the gastrointestinal endoscopes of the digestive tract is that due to the different use parts, the image observation window of the duodenoscope is a side view type, and it is equipped with a lifting forceps for allowing minimally invasive instruments to enter the bile duct. The lifting and lowering of the lifting forceps is through the wrench at the operation part to pull the lifting platform at the front end. The steel wire for pulling the lifting platform is inserted into the micro steel pipe. Since stains will flow into the micro steel pipe after each use to examine patients, it is necessary to clean and disinfect before using the next patient to avoid cross-infection caused by stains remaining in the micro pipe.

[0004] Different from the water and gas pipes and suction pipes of gastroscopes or colonoscopes, the inner diameters of the relative lumens are larger and are easy to clean and disinfect. However, the lifting forceps wire of the duodenoscope runs up and down in the micro steel pipe. Due to the extremely small inner diameter of the micro pipe, there is still a risk that the flushing and disinfection cannot be thoroughly cleaned. Due to the complex operation requirements of the duodenoscope and the fact that the product has not been widely promoted and used, fully avoiding the occurrence of this risk in the product design in advance and preventing the listing of products with risks from the source are important factors in this utility model. Content of the Utility Model

[0005] The purpose of the utility model is to provide a disposable self-destructing limit type tip cap to solve the technical problems pointed out in the background art.

[0006] To solve the above technical problems, the technical solutions adopted by the utility model are as follows:

[0007] A disposable self-destructing limit-type tip cap, comprising a tip cap and a colonoscopy probe sleeved and cooperated with the tip cap. An inspection window with an upward opening is formed on the side wall of the tip cap. A receiving space for sleeving and installing the colonoscopy probe is formed inside the tip cap. The colonoscopy probe can be movably inserted into the receiving space to be assembled with the tip cap. A rotary clamping mechanism is arranged between the colonoscopy probe and the tip cap.

[0008] Further, the colonoscopy probe includes a base, a lens assembly arranged on one side of the base, and an installation side piece arranged on the other side of the base. The shooting direction of the lens assembly faces the direction of the inspection window.

[0009] Further, a collar is arranged at one end of the tip cap. The collar is formed with an assembly opening allowing the colonoscopy probe to extend into and be assembled. The assembly opening is sleeved and installed on the outer peripheral side of the base. The rotary clamping mechanism is arranged between the lens assembly, the installation side piece and the inner wall of the tip cap.

[0010] Further, the rotary clamping mechanism includes downward rotation barbs and upward rotation barbs symmetrically convexly arranged on both sides of the inner wall of the tip cap, and further includes downward rotation teeth correspondingly recessed on the outer peripheral side of the lens assembly and upward rotation teeth correspondingly recessed on the outer peripheral side of the installation side piece. When the tip cap is rotated counterclockwise, the downward rotation barbs and the upward rotation barbs are correspondingly clamped into the downward rotation teeth and the upward rotation teeth.

[0011] Further, a screwing-in block is formed by forward extension at the end position of the lens assembly. A screwing groove is formed on one side of the screwing-in block close to the installation side piece. A limiting convex block is arranged at a position corresponding to the screwing groove inside the tip cap. When the tip cap is rotated counterclockwise, the limiting convex block is clamped into the screwing groove.

[0012] Further, the downward rotation barb is a ramp structure with a thinner lower part and a thicker upper part, and the upward rotation barb is a ramp structure with a thinner upper part and a thicker lower part. An upper inclined surface convenient for the downward rotation barb to screw in is formed on the upper side of the installation side piece, and a lower inclined surface convenient for the upward rotation barb to screw in is formed on the lower part of the outer peripheral side of the lens assembly. When screwing in, the upper inclined surface and the lower inclined surface are in contact and extrusion with the ramp sides of the downward rotation barb and the upward rotation barb.

[0013] Further, a working channel for the free entry and exit of a minimally invasive instrument is reserved at the base position of the colonoscopy probe. A positioning arc-shaped slope is formed at a position corresponding to the working channel inside the tip cap. A plurality of concave and convex edges are evenly arranged at intervals along the entry direction on the positioning arc-shaped slope. The concave and convex edges are in contact with the concave and convex rings of the entering minimally invasive instrument to form damping fixation.

[0014] Further, the tip cap is injection molded from a medical material.

[0015] Further, the colonoscopy probe is a duodenoscope probe.

[0016] Compared with the prior art, the present utility model has the following beneficial effects:

[0017] The present utility model provides a disposable self-destructing limit-type tip cap, which cancels the lifting forceps structure designed in the endoscope structure and instead adopts a combined structure and a specific design of the tip cap. The product with the high-cost operating system as the main body is combined with the outer sheath tube and the tip cap in a detachable manner, while the original flexible endoscope maintains the integrity of the original product and can be reused after disinfection. The perfect combination of the two is that the low-cost consumables and non-reusable products are used, while the high-value endoscope is not used as a consumable, reducing the cost expenditure of users and avoiding the risk of cross-infection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 is a schematic assembly structure diagram of the present utility model;

[0020] Figure 2 is a schematic assembly structure diagram of the present utility model;

[0021] Figure 3 is a schematic assembly structure diagram of the present utility model from another angle;

[0022] Figure 4 is a schematic assembly structure diagram of the present utility model from another angle;

[0023] Figure 5 is a schematic assembly diagram of the present utility model;

[0024] Figure 6 is a schematic structure diagram of the present utility model;

[0025] Figure 7 is a schematic structure diagram of the present utility model from another angle.

[0026] In the figure: 1. Tip cap, 11. Accommodating space, 12. Lower rotating barb, 13. Upper rotating barb, 14. Limit convex block, 15. Sleeve ring, 16. Positioning arc slope, 2. Colonoscopy probe, 21. Lens assembly, 22. Lower rotating reverse tooth, 23. Upper rotating reverse tooth, 24. Screw-in block, 241. Screw groove, 25. Base, 26. Installation side piece, 27. Upper inclined surface, 28. Lower inclined surface, 29. Working channel. Detailed implementation mode

[0027] The technical solutions in the embodiments of the present utility model will be clearly and completely described below. Apparently, the described embodiments are only a part of the embodiments of the present utility model, rather than all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0029] In the present utility model, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0030] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature may be that the first feature is directly above or obliquely above the second feature, or only indicates that the first feature is at a higher horizontal height than the second feature. The first feature being "below", "under" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature is at a lower horizontal height than the second feature.

[0031] As Figure 1-7 shown, a disposable self-destructing limit type tip cap includes a tip cap 1 and a colonoscopy probe 2 sleeved and matched with the tip cap 1. An inspection window with an upward opening is formed on the side wall of the tip cap 1. A receiving space 11 for sleeving and installing the colonoscopy probe 2 is formed inside the tip cap 1. The colonoscopy probe 2 can be movably inserted into the receiving space 11 to be assembled with the tip cap 1. A rotating snap connection mechanism is provided between the colonoscopy probe 2 and the tip cap 1.

[0032] The utility model provides a disposable self-destructing limit type tip cap, which cancels the forceps lifting structure designed in the endoscope structure and instead adopts a combined structure and a special tip cap design. The product with the high-cost operating system as the main body is combined with the outer sheath tube and the tip cap in a detachable manner, while the original flexible endoscope maintains the integrity of the original product and can be reused after disinfection. The perfect combination of the two means that the low-cost consumable parts are non-reusable, while the high-value endoscope is not a consumable, reducing the cost expenditure of users and avoiding the risk of cross-infection.

[0033] Specifically, as shown in the figure, the colonoscopy probe 2 includes a base 25, a lens assembly 21 arranged on one side of the base 25, and an installation side piece 26 arranged on the other side of the base 25. The shooting direction of the lens assembly 21 faces the window direction. One end of the tip cap 1 is provided with a collar 15, and the collar 15 forms an assembly opening allowing the colonoscopy probe 2 to extend and be assembled. The assembly opening is sleeved on the outer peripheral side of the base 25, and the rotary clamping mechanism is arranged between the lens assembly 21, the installation side piece 26 and the inner wall of the tip cap 1.

[0034] It is worth mentioning that the lens assembly 21 is the tip lens of a commonly used duodenoscope in the prior art. In addition to the lens assembly 21, the base 25 also has corresponding common colonoscopy components such as a light guide illumination component and an air inflation component. During installation, by sleeving the tip cap 1 onto the base 25, at this time the lens assembly 21 is located inside the tip cap 1. Through the rotary clamping mechanism, the tip cap 1 is rotated to form a reliable and stable assembly between the tip cap and the colonoscopy probe 2.

[0035] Specifically, as shown in the figure, the rotary clamping mechanism includes downward rotation barbs 12 and upward rotation barbs 13 symmetrically convexly arranged on both sides of the inner wall of the tip cap 1, and also includes downward rotation teeth 22 correspondingly recessed on the outer peripheral side of the lens assembly 21 and upward rotation teeth 23 correspondingly recessed on the outer peripheral side of the installation side piece 26. When the tip cap 1 is rotated counterclockwise, the downward rotation barbs 12 and the upward rotation barbs 13 are correspondingly clamped into the downward rotation teeth 22 and the upward rotation teeth 23. After rotation, double-point surface double fixation between the tip cap 1 and the colonoscopy probe 2 is achieved, ensuring the stability of the fixed contact surface between the tip cap 1 and the colonoscopy probe 2 and that the tip cap 1 is not easily detached.

[0036] Specifically, as shown in the figure, a screwing-in block 24 is formed by forward extension at the end position of the lens assembly 21. A screwing groove 241 is formed on one side of the screwing-in block 24 close to the mounting side piece 26. A limiting convex block 14 is arranged inside the tip cap 1 corresponding to the position of the screwing groove 241. When the tip cap 1 is rotated counterclockwise, the limiting convex block 14 is snapped into the screwing groove 241. By adding the screwing-in block 24 and the limiting convex block 14, after the convex block is rotated and coincides with the screwing groove 241, it further plays a role in fixing the positioning of the fixed point.

[0037] Specifically, as shown in the figure, the lower rotating barb 12 has a slope structure that is thinner at the bottom and thicker at the top, and the upper rotating barb 13 has a slope structure that is thinner at the top and thicker at the bottom. An upper inclined surface 27 convenient for the lower rotating barb 12 to be screwed in is formed on the upper side of the mounting side piece 26, and a lower inclined surface 28 convenient for the upper rotating barb 13 to be screwed in is formed on the lower part of the outer peripheral side of the lens assembly 21. When screwing in, the upper inclined surface 27, the lower inclined surface 28 are in contact and extrusion with the slope sides of the lower rotating barb 12 and the upper rotating barb 13. By setting the above-mentioned inclined surfaces and slope structures, it facilitates the rotational assembly of the tip cap, and at the same time prevents the tip cap from rotating. The multi-point and multi-surface multiple structures simultaneously prevent the tip cap from loosening and reduce the risk of falling off.

[0038] It is worth mentioning that after the operation, the tip cap needs to be removed by reverse rotation and then pulled out. During the reverse rotation process, the rotary locking mechanism will be damaged, which belongs to a self-destructive design and cannot be used again. The present utility model is a very ingenious combined design concept, which prevents possible risks in the design. It avoids the possibility of medical disputes and also brings a new way of change to the new medical minimally invasive surgery. It is a very forward-looking innovative design and will be used in medical units at different levels. Therefore, the combination of this product is an ideal product with simple operation, small trauma, accurate positioning, no difference from the use of traditional endoscopes, and reduced medical disputes.

[0039] Specifically, as shown in the figure, a working channel 29 for the free entry and exit of the micro-instrument is reserved at the base 25 position of the colonoscope probe 2. A positioning arc-shaped slope 16 is formed inside the tip cap 1 corresponding to the position of the working channel 29. A number of concave and convex edges are arranged at equal intervals along the entry direction on the positioning arc-shaped slope 16, and the concave and convex edges are in contact with the concave and convex rings of the entering micro-instrument to form a damping fixation. Among them, the working channel can be used for suction and also for the entry and exit of micro-instruments. The setting of the positioning arc-shaped slope 16 and the concave and convex edges not only play a role in fixing the micro-instrument, but also the intermittent concave and convex edge structure can be used for the smooth outflow of liquid during suction.

[0040] Specifically, as shown in the figure, the tip cap 1 is injection-molded from a medical material. The outer shape is smooth and there are no burrs left that harm the cavity mucosa.

[0041] Specifically, as shown in the figure, the colonoscopy probe 2 is a duodenoscope probe.

[0042] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

[0043] In addition, it should be understood that although this specification is described according to the implementation manners, not every implementation manner only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementation manners that can be understood by those skilled in the art.

Claims

1. A disposable self-destructing limit-type tip cap, comprising a tip cap (1) and a colonoscope probe (2) sleeved and mated with the tip cap (1), characterized in that, An inspection window with an upward opening is formed on the side wall of the tip cap (1). A receiving space (11) for sleeving and installing the colonoscope probe (2) is formed inside the tip cap (1). The colonoscope probe (2) can be movably inserted into the receiving space (11) to be assembled with the tip cap (1). A rotary clamping mechanism is provided between the colonoscope probe (2) and the tip cap (1).

2. The disposable self-destructing and limiting tip cap according to claim 1, wherein The colonoscope probe (2) includes a base (25), a lens assembly (21) provided on one side of the base (25), and an installation side plate (26) provided on the other side of the base (25). The shooting direction of the lens assembly (21) faces the direction of the inspection window.

3. The disposable self-destructing limit-type tip cap according to claim 2, wherein, A collar (15) is provided at one end of the tip cap (1). The collar (15) forms an assembly opening allowing the colonoscope probe (2) to be inserted and assembled. The assembly opening is sleeved and installed on the outer peripheral side of the base (25). The rotary clamping mechanism is provided between the lens assembly (21), the installation side plate (26) and the inner wall of the tip cap (1).

4. The disposable self-destructing limit-type tip cap according to claim 3, characterized in that, The rotary clamping mechanism includes downward rotary barbs (12) and upward rotary barbs (13) symmetrically convexly provided on both sides of the inner wall of the tip cap (1), and further includes downward rotary teeth (22) correspondingly recessed on the outer peripheral side of the lens assembly (21) and upward rotary teeth (23) correspondingly recessed on the outer peripheral side of the installation side plate (26). When the tip cap (1) is rotated counterclockwise, the downward rotary barbs (12) and the upward rotary barbs (13) are correspondingly snapped into the downward rotary teeth (22) and the upward rotary teeth (23).

5. A disposable self-destructing limit-type tip cap according to claim 4, characterized in that, A screwing-in block (24) is formed by forward extension at the end position of the lens assembly (21). A screwing groove (241) is formed on one side of the screwing-in block (24) close to the installation side plate (26). A limiting convex block (14) is provided inside the tip cap (1) at a position corresponding to the screwing groove (241). When the tip cap (1) is rotated counterclockwise, the limiting convex block (14) is snapped into the screwing groove (241).

6. A disposable self-destructing limit-type tip cap according to claim 4, characterized in that, The downward rotary barb (12) is a slope structure with a thinner lower part and a thicker upper part, and the upward rotary barb (13) is a slope structure with a thinner upper part and a thicker lower part. An upper inclined surface (27) facilitating the screwing-in of the downward rotary barb (12) is formed on the upper side of the installation side plate (26), and a lower inclined surface (28) facilitating the screwing-in of the upward rotary barb (13) is formed on the lower part of the outer peripheral side of the lens assembly (21). During screwing-in, the upper inclined surface (27), the lower inclined surface (28) are in contact and extrusion with the slope sides of the downward rotary barb (12) and the upward rotary barb (13).

7. A disposable self-destructing and limiting tip cap according to claim 5, characterized in that A working channel (29) for the free entry and exit of the minimally invasive instrument is reserved at the position of the base (25) of the colonoscope probe (2). A positioning arc-shaped slope (16) is formed inside the tip cap (1) at a position corresponding to the working channel (29). A number of concave and convex edges are evenly arranged at intervals along the entry direction on the positioning arc-shaped slope (16). The concave and convex edges are in contact with the concave and convex rings of the entering minimally invasive instrument to form damping fixation.

8. The disposable self-destructing limit-type tip cap according to claim 7, characterized in that, The tip cap (1) is injection-molded from a medical material.

9. The disposable self-destructing limit-type tip cap according to claim 7, characterized in that, The colonoscope probe (2) is a duodenoscope probe.

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