Endoscope mirror washing sheath

Abstract

The utility model discloses an endoscope mirror surface washing sheath, including sleeve, connecting base, water inlet and sealing ring. The sleeve is set up on the connecting base, and the connecting base is connected with the endoscope and cooperates, and makes the insertion part of endoscope front end wear in the sleeve, and the front end of connecting base is connected with the tail end of sleeve, and the water inlet that is communicated with the tail end of sleeve is equipped in the connecting base, and the tail end area of connecting base is equipped with the sealing ring for cooperating with the insertion part of endoscope, and the water flushing channel is formed between the sleeve and insertion part, and the front end of sleeve is equipped with the water flushing baffle that cooperates with the water flushing channel, and the water flushing baffle is configured to guide the water flow in the water flushing channel directional washing to the mirror surface of insertion part, to realize the effective washing of mirror surface. Directly through the sleeve, reduce the space that separate water flushing duct occupies, to make mirror sheath overall structure compact, increase operation space.

Description

Technical Field

[0001] This utility model relates to the field of endoscope technology, specifically to an endoscope mirror rinsing sheath. Background Technology

[0002] During diagnosis and treatment using an endoscope, water is typically injected to clear blood or mucus from the field of view and to aspirate fluids and secretions, providing the doctor with a clear view. Chinese Patent No. CN 221690864 U discloses a laparoscopic flushing and suction sheath, comprising: a connecting base, a cannula, and a flushing and suction tube assembly. The cannula is disposed on the connecting base, and the flushing and suction tube assembly is placed on the cannula. The connecting base has a placement cavity that accommodates the insertion of the endoscope's front end base, allowing the insertion portion of the endoscope's front end to pass through the cannula. A slot is provided on the side wall of the placement cavity, which matches the fiber optic interface on the endoscope's front end, enabling the fiber optic interface on the endoscope's front end to be engaged and positioned when the endoscope's front end base is inserted into the placement cavity.

[0003] However, existing water-flushing endoscope sheaths typically combine the flushing tube and the sheath sleeve, each with its own independent function. This results in a bulky overall instrument that compresses the operating space of other instruments, making it unsuitable for surgeries with limited space, such as those in the nasal cavity and ear canal. Furthermore, existing water-flushing endoscope sheaths are primarily designed to flush the area within the endoscopic field of view, failing to flush the endoscope itself. During surgery, bleeding, tissue, or bodily fluids frequently adhere to the endoscope surface, obstructing the view. This necessitates the surgeon to remove the endoscope, clean the surface, and continue the procedure, disrupting the continuity of the operation, causing inconvenience, prolonging the surgical time, and potentially affecting the quality of the surgery.

[0004] Therefore, providing a mirror surface that can effectively flush the endoscope, maintain a clear field of vision during surgery, and reduce the overall size of the instrument to facilitate surgical operations in limited surgical space has become an urgent problem to be solved in this field. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide an endoscope mirror rinsing sheath that can perform endoscope mirror rinsing and has a compact structure.

[0006] To achieve the above objectives, the present invention provides an endoscope mirror flushing sheath, which cooperates with an endoscope and includes a sleeve and a connecting base. The sleeve is disposed on the connecting base, and the connecting base is connected and cooperates with the endoscope, such that the insertion part of the endoscope tip passes through the sleeve. The front end of the connecting base is connected to the tail end of the sleeve. The connecting base is provided with a water inlet communicating with the tail end of the sleeve. The tail end region of the connecting base is provided with a sealing ring for cooperating with the insertion part. A flushing channel is formed between the sleeve and the insertion part. The front end of the sleeve is also provided with a flushing baffle that cooperates with the flushing channel. The flushing baffle is configured to guide the water flow in the flushing channel to flush the mirror surface of the insertion part.

[0007] Furthermore, the connecting base is provided with a water inlet groove, the water inlet groove is connected to the water inlet, and the tail end of the sleeve is placed in the water inlet groove.

[0008] Furthermore, the sealing ring is composed of an elastic sealing ring, and the sealing ring is configured to be interference-fitted with the insertion part of the endoscope.

[0009] Furthermore, the flushing baffle and the sleeve are distributed at an angle.

[0010] Furthermore, the sleeve has an arc-shaped tube wall protruding from it, and there is a gap between the arc-shaped tube wall and the insertion part.

[0011] Furthermore, the sleeve has a rectangular tube wall protruding from it, and there is a gap between the rectangular tube wall and the insertion part.

[0012] Furthermore, the sleeve is provided with a C-shaped opening, and there is a gap between the C-shaped opening sleeve and the insertion part.

[0013] The endoscope flushing sheath provided by this utility model forms a flushing channel between the cannula and the insertion part of the endoscope, allowing flushing directly through the cannula. This reduces the space occupied by a separate flushing catheter, making the overall structure of the sheath more compact and increasing the surgical operating space. At the same time, the water flow direction is fixed and controllable under the guidance of the flushing channel. In conjunction with the flushing baffle at the front end of the cannula, it can guide the water flow to flush the endoscope surface of the insertion part in a specific direction, so as to achieve effective flushing of the endoscope surface. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0015] Figure 1 A schematic diagram of the overall structure of the endoscope mirror flushing sheath provided by this utility model;

[0016] Figure 2 This is a schematic diagram of the endoscope in this utility model;

[0017] Figure 3 This is a schematic diagram of the structure connecting the base and the sleeve in this utility model;

[0018] Figure 4 This is a schematic diagram showing the fit between the connecting base and the insertion part in this utility model;

[0019] Figures 5 to 7 This is a cross-sectional schematic diagram of the sleeve in this utility model;

[0020] Figure 8 This is a schematic diagram of the flushing baffle in this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Sleeve; 11. Flushing baffle; 12. Arc-shaped pipe wall; 13. Rectangular pipe wall; 14. C-shaped sleeve; 2. Connecting base; 21. Water inlet groove; 3. Endoscope; 31. Insertion part; 32. Endoscope handle; 4. Water inlet; 5. Sealing ring; 6. Flushing channel. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0024] See Figures 1 to 3 The image shown is an example of an endoscope mirror flushing sheath provided by this utility model.

[0025] As shown in the figure, the endoscope mirror flushing sheath in this example mainly includes a sleeve 1, a connecting base 2, a water inlet 4, and a sealing ring 5.

[0026] The sheath 1 is mounted on the connecting base 2, which is connected to the endoscope 3, allowing the insertion part 31 at the front end of the endoscope 3 to pass through the sheath 1. The connecting base 2 has a water inlet 4 connected to the tail end of the sheath 1, and the tail end area of ​​the connecting base 2 has a sealing ring 5 for engaging with the insertion part 31. A flushing channel 6 is formed between the sheath 1 and the insertion part 31. The front end of the sheath 1 is also provided with a flushing baffle 11 that engages with the flushing channel 6. The flushing baffle 11 is configured to guide the water flow in the flushing channel 6 to flush the mirror surface of the insertion part 31, thereby achieving effective flushing of the mirror surface and reducing the need for separate flushing pipes. This makes the overall structure of the endoscope sheath compact and facilitates surgical operations in a limited surgical cavity.

[0027] Combination Figure 3The front end of the connecting base 2 is provided with a water inlet 21, which is connected to the water inlet 4. The tail end of the sleeve 1 is inserted into the connecting base 2 and placed in the water inlet 21 so that the water inlet 4 is connected to the tail end of the sleeve 1 through the water inlet 21, and water can be injected into the sleeve 1 through the water inlet 4.

[0028] Combination Figure 3 and Figure 4 Furthermore, an elastic sealing ring 5 is provided at the tail end of the connecting base 2. In the initial state, the diameter of the sealing ring 5 is slightly smaller than the diameter of the insertion part 31, so that the insertion part 31 can expand the sealing ring 5 and pass through it during assembly and be built into the sleeve 1. After assembly, the sealing ring 5 and the insertion part 31 form an interference fit. Under the action of its own elastic restoring force, the sealing ring 5 presses tightly against the insertion part 31, sealing the annular gap between the insertion part 31 and the tail end of the connecting base 2.

[0029] The resulting sealing structure effectively blocks the overflow path of water flowing from the sleeve 1 to the tail end of the connecting base 2, forcing the water to flow only along the front end of the sleeve 1, thus forming a unidirectional flow channel within the sleeve 1.

[0030] Furthermore, the insertion part 31 is built into the sleeve 1, and a gap is provided between it and the sleeve 1 to form a flushing channel 6. The water flow in the sleeve 1 can flow along the flushing channel 6 to the front end of the sleeve 1 and flush out from the front end of the sleeve 1.

[0031] In practical applications, the matching structure of the cannula 1 and the insertion part 31 can be adapted to the specific application scenario and surgical cavity space of the endoscope, so that the overall structure of the endoscope can be adapted to different scenarios.

[0032] Combination Figure 5 As an example, in some embodiments, the sleeve 1 is configured with a teardrop-shaped cross section, and an arc-shaped tube wall 12 is provided on the sleeve 1 so that an arc-shaped gap channel is formed between the protruding arc-shaped tube wall 12 and the insertion part 31, thereby forming a streamlined flushing channel 6, which can effectively reduce water flow resistance and is suitable for narrow or curved surgical cavity spaces.

[0033] Combination Figure 6 In some embodiments, a rectangular tube wall 13 protrudes from the sleeve 1 so that a rectangular cross-section flushing channel 6 is formed between the protruding rectangular tube wall 13 and the insertion part 31, which can provide a larger flow area and is suitable for open surgical cavities that require large flow of flushing.

[0034] Combination Figure 7In some embodiments, the cannula 1 is configured with a circular cross-section, and a C-shaped cannula 14 is nested between the cannula 1 and the insertion part 31, and the C-shaped cannula 14 is configured with a C-shaped cross-section, thereby forming a gap between the cannula 1 and the insertion part 31. This gap constitutes a flushing channel 6, which is suitable for a circular surgical cavity with a regular cross-section.

[0035] Preferably, the flushing channels 6 are distributed only on one side of the insertion part 31 to reduce the overall structural size of the endoscope. In some embodiments, the flushing channels 6 can also be distributed along the outer peripheral surface of the insertion part 31 to enhance the flushing effect on the mirror surface.

[0036] In order to ensure that the water flows along the flushing channel 6 to the front end of the sleeve 1 and can accurately flush the mirror surface at the end of the insertion part 31 when it flushes out from the front end of the sleeve 1, the front end of the sleeve 1 is provided with a flushing baffle 11. The flushing baffle 11 is configured to guide the water flow in the flushing channel 6 to flush the mirror surface of the insertion part 31 in a directional manner.

[0037] Combination Figure 8 Specifically, the flushing baffle 11 is positioned directly opposite the outlet of the flushing channel 6 and is angled to the sleeve 1. This allows the water flow in the flushing channel 6 to impact the surface of the flushing baffle 11 after it exits from the front end of the sleeve 1. The water flow is then impacted and rebounded by the flushing baffle 11, forcibly changing its flow direction. This allows the flushing baffle 11 to direct the water flow to the mirror surface of the insertion part 31 for rinsing.

[0038] Here, the angle between the flushing baffle 11 and the sleeve 1 can be adaptively adjusted according to the angle of the mirror, so that the position and angle of the flushing baffle 11 can ensure that the changed water flow direction is accurately guided to the mirror of the insertion part 31, so as to achieve precise and effective flushing.

[0039] Furthermore, the flush baffle 11 and the sleeve 1 are configured to be detachably connected, such as by a threaded connection or a magnetic connection, so that the flush baffle 11 can be removed from the front end of the sleeve 1 and replaced with flush baffles 11 with different inclination angles to accurately match the mirror angles of different insertion parts 31 and ensure the flushing effect.

[0040] At the same time, after the flushing baffle 11 is removed from the front end of the sleeve 1, the water flow in the flushing channel 6 can flow directly to the operating area in front of the insertion part 31 to flush the operating area, quickly remove obstructions to the field of vision, and provide a clear field of vision.

[0041] The following example illustrates the working process of this utility model in a specific application. It should be noted that the content described here is only a specific application example of this solution and does not constitute a limitation on this solution.

[0042] The endoscope 3 is assembled with the connecting base 2. The insertion part 31 passes through the sealing ring 5 in the tail area of ​​the connecting base 2 and forms an interference fit with the sealing ring 5, thereby effectively sealing the annular gap between the insertion part 31 and the tail end of the connecting base 2, blocking the overflow path of water in the sleeve 1 to the tail end of the connecting base 2, and forming a one-way flow channel in the sleeve 1.

[0043] Meanwhile, the insertion part 31 is inserted into the sleeve 1, and a gap is provided between it and the sleeve 1 to form a flushing channel 6.

[0044] Furthermore, water is injected into the water channel 21 of the connecting base 2 through the water inlet 4. The water flows through the water channel 21 to the sleeve 1 and rushes out along the flushing channel 6 to the front end of the sleeve 1, impacting the surface of the flushing baffle 11, so that the flow direction of the water is forcibly changed. The flushing baffle 11 directs the water flow to the mirror surface of the insertion part 31 to rinse the mirror surface.

[0045] At this time, the endoscope handle 32 of the endoscope 3 can be kept still to keep the insertion part 31 fixed, and the connecting base 2 can be rotated appropriately to drive the sleeve 1, the flushing channel 6 and the flushing baffle 11 to rotate synchronously around the insertion part 31, so that the water flow in the flushing channel 6 covers the mirror surface at multiple angles in the rotating state, eliminating fixed flushing dead angles, and removing foreign objects from the mirror surface more efficiently through dynamic flushing, thereby improving the flushing effect.

[0046] The endoscope mirror flushing sheath provided by this utility model forms a flushing channel 6 between the cannula 1 and the insertion part 31 of the endoscope 3, and flushing is achieved directly through the cannula 1, reducing the space occupied by a separate flushing catheter, so as to make the overall structure of the endoscope compact and increase the surgical operation space. At the same time, the water flow direction is fixed and controllable under the guidance of the flushing channel 6. With the flushing baffle 11 at the front end of the cannula 1, the water flow can be guided to flush the mirror surface of the insertion part 31 in a directional manner to achieve effective flushing of the mirror surface.

[0047] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An endoscope wash sheath, for use with an endoscope, comprising a sleeve and a connecting base, the sleeve being disposed on the connecting base, the connecting base being connected and engaged with the endoscope, such that the insertion portion of the endoscope's tip passes through the sleeve, characterized in that, The front end of the connecting base is connected to the tail end of the sleeve. The connecting base is provided with a water inlet communicating with the tail end of the sleeve. The tail end area of ​​the connecting base is provided with a sealing ring for cooperating with the insertion part. A flushing channel is formed between the sleeve and the insertion part. The front end of the sleeve is also provided with a flushing baffle that cooperates with the flushing channel. The flushing baffle is configured to guide the water flow in the flushing channel to flush the mirror surface of the insertion part.

2. The endoscope mirror flushing sheath according to claim 1, characterized in that, The connecting base is provided with a water inlet groove, which is connected to the water inlet, and the tail end of the sleeve is placed in the water inlet groove.

3. The endoscope mirror flushing sheath according to claim 1, characterized in that, The sealing ring is composed of an elastic sealing ring, and the sealing ring is configured to be interference-fitted with the insertion part of the endoscope.

4. The endoscope mirror flushing sheath according to claim 1, characterized in that, The flushing baffle is positioned at an angle to the sleeve.

5. The endoscope mirror flushing sheath according to claim 1, characterized in that, The sleeve has an arc-shaped tube wall protruding from it, and there is a gap between the arc-shaped tube wall and the insertion part.

6. The endoscope mirror flushing sheath according to claim 1, characterized in that, The sleeve has a rectangular tube wall protruding from it, and there is a gap between the rectangular tube wall and the insertion part.

7. The endoscope mirror flushing sheath according to claim 1, characterized in that, The sleeve has a C-shaped opening inside, and there is a gap between the C-shaped opening sleeve and the insertion part.

Images