Guide sheath and endoscope assembly

Abstract

The invention discloses a guiding sheath and an endoscope assembly, and relates to the technical field of endoscopes. The guide sheath comprises a tube body, a fluid channel, a functional device, a water injection channel and an equipment channel. The fluid channel is arranged in the pipe body in a penetrating mode. The functional device is arranged on the tube body. The water injection channel penetrates through the pipe body. The equipment channel is arranged in the tube body, and the far end of the equipment channel is sealed and light-transmitting. Due to the fact that the insertion part installed on the guide sheath is in the sealed state, the insertion part is not polluted by the external environment, after an operator connects the guide sheath with the insertion part, the guide sheath and the insertion part are sent to the body of a patient together, after the operator completes an operation, the guide sheath can be directly detached, and at the moment, the insertion part of the endoscope is not polluted, and the operation is convenient. When an operation needs to be carried out on a next patient, a new guide sheath can be installed on the insertion portion again, so that the time for disinfecting the endoscope can be saved, and meanwhile cross infection of the patient can be avoided.

Description

Technical Field

[0001] The present invention relates to the field of endoscopes, and in particular to a guide sheath and an endoscope component. Background Art

[0002] Endoscope is a commonly used medical device. It is an inspection instrument that can directly enter the natural channels of the human body and provide the operator with sufficient diagnostic information to treat diseases.

[0003] However, endoscopes are currently very expensive, and the number of endoscopes in hospitals is extremely limited. The number of patients is far greater than the number of endoscopes. To prevent cross infection, the surgeon needs to disinfect the endoscope after each use. At this time, the endoscope cannot be put into use, and patients need to queue for a long time for surgery. This will lead to a backlog of patients, making it difficult for some patients to receive timely examinations. Summary of the invention

[0004] The present invention discloses a guide sheath and an endoscope assembly, so as to at least partially improve the above technical problems.

[0005] In order to solve the above problems, the present invention adopts the following technical solutions: On the one hand, an embodiment of the present application provides a guide sheath for an endoscope assembly, wherein the endoscope includes an insertion portion, and the guide sheath includes: tube body; A fluid channel, the fluid channel is disposed through the tube body; A functional device, wherein the functional device is arranged on the tube body; A water injection channel, the water injection channel is provided through the tube body; and The device channel is arranged in the tube body, and the far end of the device channel is sealed and light-transmissive.

[0006] In one embodiment, the functional device and the equipment channel are arranged at opposite ends of the tube body in the radial direction.

[0007] In one embodiment, the water outlet of the water injection channel is arranged close to the functional device.

[0008] In one embodiment, the water injection channel surrounds a partial area of ​​the circumference of the functional component.

[0009] In one embodiment, the functional device, the equipment channel and the water injection channel are all arranged in the radial direction of the tube body, and the functional device is located between the water injection channel and the fluid channel.

[0010] In one embodiment, the device channel is located on one side of the water injection channel and on one side of the fluid channel.

[0011] In one embodiment, the functional device is a laser, and the guide sheath further comprises: a refractive element, wherein the refractive element is used to refract the light emitted by the functional device to an axial direction close to the fluid channel.

[0012] In one embodiment, the functional device protrudes from the distal end surface of the tube body and is arranged to be inclined toward the axial direction of the fluid channel.

[0013] In one embodiment, the guide sheath further comprises: a glass slide, the glass slide is sealed and disposed at the distal end of the device channel, and the glass slide is configured to guide the image captured by the insertion portion to approach the axial direction of the fluid channel.

[0014] On the other hand, an embodiment of the present application further provides an endoscope assembly, comprising an endoscope and a guide sheath as described above, wherein an insertion portion of the endoscope is connected to the guide sheath.

[0015] The technical solution adopted by the present invention can achieve the following beneficial effects: The guide sheath provided in the embodiment of the present application is provided by setting the fluid channel, the water injection channel and the device channel through the tube body, and setting the functional device in the tube body, wherein the device channel can be used to install the handle of the endoscope, and the distal end of the device channel is sealed and light-transmissive. The insertion part installed in the guide sheath is in a sealed state, so it will not be polluted by the external environment. When the operator can connect the guide sheath with the insertion part, and send the guide sheath together with the insertion part into the patient's body, when the operator completes the operation, the guide sheath can be directly removed. At this time, the insertion part of the endoscope will not be contaminated. When the next patient needs to be operated on, a new guide sheath can be reinstalled on the insertion part, which can save the time of disinfecting the endoscope and avoid cross infection of patients. It solves the problem that the operator needs to disinfect the endoscope after each use of the endoscope in the prior art, and the endoscope cannot be put into use at this time. Patients need to queue for a long time for surgery, resulting in the accumulation of patients and some patients are difficult to be examined in time. Applying the above-mentioned guide sheath to the endoscope assembly can also solve the above-mentioned technical problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1A schematic structural diagram of an endoscope assembly in one embodiment of the present application is shown.

[0018] Figure 2 A schematic structural diagram of a guide sheath in one embodiment of the present application is shown.

[0019] Figure 3 for Figure 1 Enlarged view of point A in the middle.

[0020] Figure 4 for Figure 1 Schematic diagram of the layout of the distal surface of the guide sheath.

[0021] Figure 5 for Figure 2 Enlarged view of point B in the middle.

[0022] Figure 6 for Figure 2 Schematic diagram of the layout of the distal surface of the guide sheath.

[0023] Figure 7 A schematic structural diagram of another guide sheath in an embodiment of the present application is shown.

[0024] Figure 8 for Figure 7 Enlarged view of point C in the middle.

[0025] In the figure: 1, endoscope assembly; 10, guide sheath; 110, tube body; 120, fluid channel; 130, functional device; 140, water injection channel; 150, equipment channel; 20, refractive element; 30, glass slide; 40, endoscope; 41, insertion part. DETAILED DESCRIPTION

[0026] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0027] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0028] In each embodiment of the present application, "proximal end" and "distal end" refer to the position of each component relative to the user in the use environment, wherein the end closer to the user is designated as the "proximal end" and the end farther from the user is designated as the "distal end".

[0029] The inventive concept of the present application is described here: Endoscope is a commonly used medical device. It is an inspection instrument that can directly enter the natural channels of the human body and provide the operator with sufficient diagnostic information to treat diseases.

[0030] However, endoscopes are currently very expensive, and the number of endoscopes in hospitals is extremely limited. The number of patients is far greater than the number of endoscopes. To prevent cross infection, the surgeon needs to disinfect the endoscope after each use. At this time, the endoscope cannot be put into use, and patients need to queue for a long time for surgery. This will lead to a backlog of patients, making it difficult for some patients to receive timely examinations.

[0031] In addition, the cost of disinfection of endoscopes after each operation should not be underestimated. This disinfection process usually includes multiple steps such as mechanical cleaning, chemical disinfection, drying and sterilization. The equipment and consumables required are very expensive and the cycle is long. Therefore, for hospitals, the cost of disinfection and reprocessing of endoscopes has become a cost burden that cannot be ignored, especially when the number of patients is large. This problem is particularly prominent.

[0032] Based on this, the inventor provides a guide sheath and endoscope assembly. The guide sheath can be installed on the insertion part of the endoscope. After the insertion part of the endoscope is installed with the guide sheath, the guide sheath can protect the insertion part of the endoscope from being contaminated by the external environment. The operator can first install the guide sheath on the insertion part of the endoscope when performing the operation. After the operation, the operator can directly remove the guide sheath and discard or disinfect it. Since the insertion part of the endoscope is not contaminated during the operation, the endoscope does not need to be disinfected, but can be used by directly installing a new or disinfected guide sheath. This shortens the time that the endoscope cannot be used due to disinfection, thereby shortening the time patients wait in line for examination.

[0033] The following is combined with Figures 1 to 8 , a guide sheath 10 and an endoscope assembly 1 provided in the present application are described in detail through specific embodiments and their application scenarios.

[0034] Please also see Figure 1 and Figure 2 The embodiment of the present application provides a guide sheath 10, which can be used for an endoscope 40. Specifically, the guide sheath 10 can be used for the insertion portion 41 of the endoscope 40 to pass through, that is, the guide sheath 10 can serve as the outer shell of the insertion portion 41 to protect the insertion portion 41 from contamination during the operation.

[0035] The guide sheath 10 may include: a tube body 110, a fluid channel 120, a functional device 130, a water injection channel 140 and an equipment channel 150. The fluid channel 120, the functional device 130, the water injection channel 140 and the equipment channel 150 may all be disposed on the tube body 110 and used to achieve different functions.

[0036] Specifically, the embodiment of the present application does not limit the specific structure of the tube body 110 , and can be matched according to the structure of the adapted insertion portion 41 .

[0037] The fluid channel 120 can be provided through the tube body 110, and the fluid channel 120 can be used to absorb the lesions generated after the operation. Taking stone surgery as an example, the fluid channel 120 can be used to absorb the broken stones to discharge the stones from the patient's body.

[0038] The functional device 130 can be arranged on the tube body 110. The functional device 130 can be flexibly arranged according to the specific operation to be performed. Taking the stone operation as an example, the functional device 130 can be a holmium laser fiber, which is used to break up the stones in the patient's body. In addition, the functional device 130 can also be a net bag, which is used to hold the stones in the patient's body and pull them to the fluid channel 120, and then be sucked out.

[0039] The water injection channel 140 can be provided through the tube body 110, and can be used to deliver water to the patient's body to assist in the suction of the lesions produced after the operation. Taking stone surgery as an example, the water injection channel 140 can also be used to deliver water to the patient's body in cooperation with the functional device 130 to perform lithotripsy, etc. It should be noted that the embodiment of the present application does not limit the specific number of water injection channels 140, for example, it can be one or two, etc., and can be set according to actual conditions.

[0040] The device channel 150 can be disposed in the tube body 110, and the device channel 150 can be used to accommodate and install the insertion portion 41 of the endoscope 40. The distal end of the device channel 150 is sealed and light-transmissive, so that the insertion portion 41 can capture environmental graphic information in the patient's body, thereby assisting the surgeon in performing the operation. At the same time, the distal end of the device channel 150 is sealed to prevent the insertion portion 41 from being contaminated by the environment in the patient's body.

[0041] The guide sheath 10 provided in the embodiment of the present application is provided by setting the fluid channel 120, the water injection channel 140 and the device channel 150 through the tube body 110, and setting the functional device 130 in the tube body 110, wherein the device channel 150 can be used to install the handle of the endoscope 40, and the distal end of the device channel 150 is sealed and light-transmissive. The insertion part 41 installed in the guide sheath 10 is in a sealed state, so it will not be polluted by the external environment. When the operator can connect the guide sheath 10 with the insertion part 41, and send the guide sheath 10 together with the insertion part 41 into the patient's body, the operator can directly remove the guide sheath 10 after completing the operation. At this time, the insertion part 41 of the endoscope 40 will not be contaminated. When the next patient needs to be operated on, a new guide sheath 10 can be reinstalled in the insertion part 41, which can save the time of disinfecting the endoscope 40 and avoid cross infection of patients. The present invention solves the problem that the surgeon needs to disinfect the endoscope 40 after each use, and the endoscope 40 cannot be put into use. Patients need to queue for a long time for surgery, resulting in a backlog of patients and difficulty in timely examination for some patients.

[0042] Please also see Figure 2-Figure 4In one embodiment, the functional device 130 and the device channel 150 can be arranged at opposite ends of the tube body 110 in the radial direction. It can be understood that, since there will be a blind spot in the peripheral area of ​​the functional device 130, the above-mentioned arrangement can make the distance between the functional device 130 and the device channel 150 relatively far, avoiding the functional device 130 from appearing in the blind spot of the operator's field of vision, and thus making it easier for the operator to observe the working condition of the functional device 130 more clearly. In addition, when the functional device 130 is a holmium laser fiber, since the holmium laser fiber releases strong energy and heat during operation, the functional device 130 and the device channel 150 are arranged in the above-mentioned manner so that the distance between the functional device 130 and the device channel 150 is far, which can avoid or reduce the influence of the heat generated by the holmium laser fiber on the device channel 150, such as possibly damaging the device channel 150 and then contaminating the insertion portion 41 arranged in the device channel 150.

[0043] Furthermore, the water outlet of the water injection channel 140 can be arranged close to the functional device 130, so that the water in the water injection channel 140 can better cooperate with the functional device 130. In addition, when the functional device 130 is a holmium laser fiber, since the holmium laser fiber releases strong energy and heat during operation, arranging the water outlet of the water injection channel 140 close to the functional device 130 can play a role in heat dissipation, thereby avoiding or reducing the possibility of damage to the tube body 110 caused by overheating of the holmium laser fiber.

[0044] Please also see Figure 2 , Figure 5 and Figure 6 In a more specific embodiment, the water injection channel 140 may also surround a portion of the periphery of the functional device 130. It is understandable that in order to facilitate the external instrument valve, the functional device 130 is usually also set through the tube body 110. When the functional device 130 is a holmium laser fiber, the heat generated during the operation of the functional device 130 will pass through the entire tube body 110. Therefore, surrounding the functional device 130 with the water injection channel 140 around a portion of the periphery of the functional device 130 can further cool the functional device 130, avoiding or reducing the possibility of damage to the tube body 110 caused by overheating of the holmium laser fiber. The embodiment of the present application does not limit the aforementioned specific area. For example, the water injection channel 140 can be set to surround at least 50% of the periphery of the functional device 130, which can further play a role in dissipating heat for the functional device 130.

[0045] In addition, in one embodiment, the functional device 130, the equipment channel 150 and the water injection channel 140 are all arranged in the radial direction of the tube body 110, and the functional device 130 is located between the water injection channel 140 and the equipment channel 150. In this embodiment, since the water injection channel 140 is arranged between the functional device 130 and the fluid channel 120, the water flowing out of the water injection channel 140 can be absorbed by the fluid channel 120 after passing through the functional device 130, that is, this embodiment can prevent the water in the water injection channel 140 from being directly absorbed by the fluid channel 120 before it has any effect.

[0046] In another embodiment, the device channel 150 can be located on one side of the water injection channel 140 and on one side of the fluid channel 120. This not only makes it easier for the operator to observe the water injection of the water injection channel 140, but also helps the operator to observe the fluid channel 120 absorbing the postoperative lesions.

[0047] It should be noted that, in some other embodiments, the layout of the fluid channel 120, the functional device 130, the water injection channel 140 and the equipment channel 150 can also be arranged in other ways, which can be arranged specifically according to actual conditions and are not limited here.

[0048] Please also see Figure 7 and Figure 8 In one embodiment, the functional device 130 may be a laser, such as a holmium laser fiber. In this embodiment, the guide sheath 10 may further include a refractive element 20, which may be used to refract the light emitted by the functional device 130 to the axial direction of the fluid channel 120. It should be noted that since the axes of the functional device 130, the fluid channel 120 and the device channel 150 do not coincide, there is a deviation between the functional device 130, the fluid channel 120 and the device channel 150. The center of the picture captured by the operator through the device channel 150 is not the center of the functional device 130, nor the center of the fluid channel 120. Therefore, the above structure can make the functional device 130 act in the axial direction of the fluid channel 120. Taking stone surgery as an example, after the functional device 130 crushes the stone, the crushed stone directly enters the fluid channel 120 and is sucked away, which is conducive to improving the efficiency of the operation. It should be noted that the embodiment of the present application does not limit the specific form of the refractive element 20. For example, it can be a refractor, or a layer of coating, etc., which can be set according to actual conditions.

[0049] Similarly, please continue to refer to Figure 7 and Figure 8In other embodiments, the functional device 130 may also protrude from the distal end surface of the tube body 110 and be inclined toward the axial direction of the fluid channel 120, which can also achieve the aforementioned effect.

[0050] Also, please refer again to Figure 5 In one embodiment, the guide sheath 10 may further include a glass slide 30, which may be sealed and disposed at the distal end of the device channel 150, and the glass slide 30 may be disposed to guide the image captured by the insertion portion 41 to be close to the axial direction of the fluid channel 120. As mentioned above, since the axes of the functional device 130, the fluid channel 120 and the device channel 150 do not coincide, there is a deviation between the functional device 130, the fluid channel 120 and the device channel 150, and the center of the image captured by the operator through the device channel 150 is not the center of the functional device 130, nor the center of the fluid channel 120. Therefore, the above structure can make the image captured by the insertion portion 41 in the device channel 150 be in the axial direction of the fluid channel 120, so that the operator can more intuitively see the situation of the fluid channel 120 absorbing the lesions generated after the operation.

[0051] It is understandable that in some other embodiments, the guide sheath 10 can be provided with the aforementioned refractive element 20 and glass slide 30 at the same time, which can further facilitate the operator's observation.

[0052] Please see here Figure 1 and Figure 2 The embodiment of the present application also provides an endoscope assembly 1, which may include an endoscope 40 and the aforementioned guide sheath 10, wherein the insertion portion 41 of the endoscope 40 may be connected to the guide sheath 10. The endoscope assembly 1 provided in the embodiment of the present application can also solve the problem in the prior art that the surgeon needs to disinfect the endoscope 40 after each use, and the endoscope 40 cannot be put into use at this time, and the patients need to queue for a long time for surgery, resulting in a pile-up of patients and difficulty for some patients to be examined in time.

[0053] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0054] In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in a reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

[0055] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A guide sheath (10), characterized in that: For use in an endoscope (40), the endoscope (40) comprises an insertion portion (41), and the guide sheath (10) comprises: tube body(110); A fluid channel (120), the fluid channel (120) being arranged through the tube body (110); A functional device (130), wherein the functional device (130) is arranged on the tube body (110); A water injection channel (140), the water injection channel (140) being arranged through the tube body (110); and A device channel (150), wherein the device channel (150) is arranged in the tube body (110), and the distal end of the device channel (150) is sealed and light-transmissive.

2. The guide sheath (10) according to claim 1, characterized in that: The functional device (130) and the equipment channel (150) are arranged at two opposite ends of the tube body (110) in a radial direction.

3. The guide sheath (10) according to claim 2, characterized in that: The water outlet of the water injection channel (140) is arranged close to the functional device (130).

4. The guide sheath (10) according to claim 3, characterized in that: The water injection channel (140) surrounds a partial area of ​​the periphery of the functional device (130).

5. The guide sheath (10) according to claim 2, characterized in that: The functional device (130), the equipment channel (150) and the water injection channel (140) are all arranged in the radial direction of the tube body (110), and the functional device (130) is located between the water injection channel (140) and the fluid channel (120).

6. The guide sheath (10) according to claim 1, characterized in that: The equipment channel (150) is located on one side of the water injection channel (140) and on one side of the fluid channel (120).

7. The guide sheath (10) according to claim 1, characterized in that: The functional device (130) is a laser, and the guide sheath (10) further comprises: a refractive element (20), wherein the refractive element (20) is used to refract the light emitted by the functional device (130) in an axial direction close to the fluid channel (120).

8. The guide sheath (10) according to claim 1, characterized in that: The functional device (130) protrudes from the distal end surface of the tube body (110) and is arranged to be inclined in the axial direction of the fluid channel (120).

9. The guide sheath (10) according to claim 1, characterized in that: The guide sheath (10) further comprises: a glass slide (30), wherein the glass slide (30) is sealed and arranged at the distal end of the device channel (150), and the glass slide (30) is arranged to guide the image captured by the insertion portion (41) to approach the axial direction of the fluid channel (120).

10. An endoscope assembly (1), characterized in that: It comprises an endoscope (40) and a guide sheath (10) according to any one of claims 1 to 9, wherein an insertion portion (41) of the endoscope (40) is connected to the guide sheath (10).

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