Endoscope cannula

Abstract

The present invention relates to the field of medical equipment technology, and specifically to an endoscope cannula, comprising a control handle and an outer tube body connected in sequence; the control handle comprises a traction wire controller; the outer tube body is provided with a drainage channel, an endoscope channel and a traction channel for the traction wire to pass through which are independent of each other, and the drainage channel is connected to an aspirator at one end close to the control handle; an injection drainage port is provided at one end of the outer tube body away from the control handle, and the injection drainage port is covered with a baffle, and the baffle is controlled by the traction wire to slide and open and close. The present invention can use the baffle of the injection drainage port to press the lesion site to stop bleeding, and the injection solution can be injected after determining the exact position of the area to be injected. When the lesion site bleeds too much, the blood can be promptly extracted by the aspirator of the drainage channel. In summary, the present invention integrates the functions of precise injection and aspiration, has a simple structure, is easy to operate, and greatly improves the efficiency of the operation.

Description

Technical Field

[0001] The invention relates to the technical field of medical equipment, and in particular to an endoscope sleeve. Background Art

[0002] An endoscope is a detection instrument that integrates traditional optics, ergonomics, precision machinery, modern electronics, mathematics, and software. It can enter the stomach through the mouth or other natural orifices. Endoscopes can be used to see lesions that cannot be shown by X-rays, and some endoscopes also have therapeutic functions.

[0003] When a traditional endoscope is used to inject a designated part of the human body, a special syringe is inserted into the human body through the surgical channel in the endoscope, and then the syringe is operated to inject the designated part. The syringe mainly includes: a treatment unit that controls the operation of injecting drugs into body tissues; a needle unit that is formed with a needle that is inserted into the treatment unit and injects drugs into body tissues; and a drug injection unit that includes drugs that are injected into the tissue when combined with the end unit of the needle unit. The operation of the syringe is to operate the treatment unit by inserting the needle in the injection target area, and inject the drugs stored in the drug injection unit into the body.

[0004] The invention with the current domestic publication number CN105636621A discloses an endoscopic injection device and provides the following features: while holding body tissue (the tissue is the area to be injected), a needle for endoscopic examination is inserted into the tissue, and then an injection solution is injected therein; if bleeding occurs, the bleeding area can be hemostatic. That is, from the state where the needle is accommodated between the holding forceps for holding the tissue, corresponding to a series of operations, the tissue is held by the holding forceps, and the needle is inserted into the tissue, and then the injection solution is injected into the tissue through the needle. In addition, if bleeding occurs during the operation, the bleeding area is hemostatic by heat transferred to the holding forceps without using a separate hemostat.

[0005] Although this invention can stop bleeding in the bleeding area by transferring heat to the holding forceps, it cannot extract the blood from the lesion in time when the lesion tissue is bleeding profusely. A large amount of blood will block the field of view of the endoscope, and the tissue holding forceps cannot accurately hold the tissue site required for injection, seriously affecting the efficiency of the operation. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide an endoscope cannula with high injection accuracy and suction function.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is: an endoscope sleeve, comprising a control handle and an outer tube body connected in sequence;

[0008] The control handle includes a traction wire controller;

[0009] The outer tube body is provided with a mutually independent drainage channel, an endoscope channel and a traction channel for the traction wire to pass through, and the drainage channel is connected to the suction device at one end close to the control handle;

[0010] An injection drainage port is provided at one end of the outer tube body away from the control handle, and the injection drainage port is covered with a baffle. The outer tube body is provided with a sliding groove for sliding connection with the baffle, and the baffle is connected to the traction wire. The baffle is controlled by the traction wire to slide and open and close, and the traction wire is connected to the traction wire controller after passing through the traction channel.

[0011] Wherein, the control handle is also provided with a suction port connected to the drainage channel, and the suction port is detachably connected with a valve cap, and the valve cap is used to seal the suction port. The opening of the valve cap is provided with an elastic sealing member for sealing, and the elastic sealing member seals the opening when the valve cap is not connected to the suction device.

[0012] Wherein, the traction wire controller is connected to the control handle via a thread, and the traction wire is fixedly connected to the traction wire controller.

[0013] Wherein, both ends of the endoscope channel and the drainage channel are open, and the endoscope channel is located above the drainage channel.

[0014] Wherein, the outer wall of the drainage channel has a groove extending longitudinally toward the endoscope channel, and the endoscope channel is partially embedded in the groove.

[0015] An annular sealing structure is provided at one end of the endoscope channel away from the control handle. The material of the annular sealing structure is silicone. The surface of the endoscope channel and the outer surface of the annular sealing structure are both coated with a hydrophobic layer.

[0016] Among them, the cross-section of the outer tube body is a structure that is narrow on the upper side and wide on the lower side, the upper outer wall of the endoscope channel coincides with the upper inner wall of the outer tube body, the lower outer wall of the drainage channel coincides with the lower inner wall of the outer tube body, and an adhesive that can seal the gap is provided between the inner wall of the outer tube body, the outer wall of the endoscope channel and the outer wall of the drainage channel.

[0017] A sealing structure is provided between the outer wall of the outer tube body at one end close to the control handle and the inside of the control handle, the rear end of the drainage channel is bent and connected to the suction port on the control handle, and the rear end of the endoscope channel is passed through the control handle.

[0018] Wherein, the baffle also includes a spring for resetting the baffle, the lower end of the spring is connected to the upper end of the baffle, the upper end of the spring is connected to the outer tube body, and the traction wire passes through the spring.

[0019] Wherein, the outer tube body, the drainage channel and the endoscope channel are all made of light-transmitting materials.

[0020] The beneficial effects of the present invention are as follows: Compared with the traditional method of injecting directly through a syringe, the present invention can use the baffle of the injection drainage port to press the lesion site to stop bleeding. After opening the baffle, the injection target tissue can be stably held, and the injection solution can be injected after the exact position of the area to be injected is determined. When the lesion site bleeds too much, the blood can be extracted in time through the suction device of the drainage channel, avoiding excessive blood blocking the endoscope's field of view and causing unnecessary wounds due to selecting the wrong injection target area. In summary, the present invention integrates precise injection and suction functions, has a simple structure, is easy to operate, and greatly improves surgical efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of an endoscope cannula according to a specific embodiment of the present invention;

[0022] Figure 2 It is a cross-sectional schematic diagram of the outer tube body of the endoscope cannula according to a specific embodiment of the present invention;

[0023] Description of labels:

[0024] 1. Control handle; 11. Traction wire controller;

[0025] 2. Outer tube body; 21. Drainage channel; 22. Endoscope channel; 23. Traction channel; 24. Injection drainage port; 25. Baffle; 26. Traction wire. DETAILED DESCRIPTION

[0026] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in combination with the implementation modes and the accompanying drawings.

[0027] The most critical concept of the present invention is that the baffle of the injection drainage port can be used to press the lesion site to stop bleeding, and the injection target tissue can be stably held after the baffle is opened.

[0028] Please refer to Figure 1 as well as Figure 2 The endoscope sleeve provided by the present invention comprises a control handle 1 and an outer tube body 2 connected in sequence;

[0029] The control handle 1 includes a traction wire controller 11;

[0030] The outer tube body 2 is provided with a mutually independent drainage channel 21, an endoscope channel 22 and a traction channel 23 for a traction wire 26 to pass through, and the drainage channel 21 is connected to a suction device at one end close to the control handle 1;

[0031] An injection drainage port 24 is provided at one end of the outer tube body 2 away from the control handle 1, and the injection drainage port 24 is covered with a baffle 25. The outer tube body 2 is provided with a sliding groove for slidingly connecting with the baffle 25. The baffle 25 is connected to a traction wire 26. The baffle 25 is controlled by the traction wire 26 to slide and open and close. The traction wire 26 passes through the traction channel 23 and is connected to the traction wire controller 11.

[0032] The working process of the above-mentioned endoscope sleeve is as follows: when in use, the endoscope is inserted from the endoscope channel 22 to the injection drainage port 24, and then the outer tube body 2 is slowly inserted into the designated lesion site in the human body according to the video continuously transmitted back by the endoscope, and the injection drainage port 24 is placed close to the lesion site, and is pressed to stop bleeding and remove impurities. If the amount of bleeding at the lesion site is not much, the traction wire 26 is controlled to open the baffle 25, thereby exposing the lesion site, and then the syringe is inserted from the clamp hole of the endoscope to accurately inject the lesion site; if the amount of bleeding at the lesion site is too much (the baffle 25 is in a closed state at this time), the aspirator is inserted from the drainage channel 21 into the outer tube body 2, and the blood at the lesion site is extracted through the aspirator. At this time, the pressing of the injection drainage port 24 has a certain degree of hemostasis function. When the amount of bleeding is reduced and the field of vision is restored, the syringe is inserted from the clamp hole of the endoscope to accurately inject the lesion site.

[0033] From the above description, it can be seen that the beneficial effects of the present invention are: compared with the traditional method of injecting directly through a syringe, the present invention can use the baffle of the injection drainage port to press the lesion site to stop bleeding. After opening the baffle, the injection target tissue can be stably held, and the injection solution can be injected after the exact position of the area to be injected is determined. When the lesion site bleeds too much, the blood can be extracted in time through the suction device of the drainage channel, avoiding the situation where too much blood blocks the field of view of the endoscope, thereby causing wounds caused by unnecessary operations of pulling out and inserting the needle due to selecting the wrong injection target area. In summary, the present invention integrates precise injection and suction functions, has a simple structure, is easy to operate, and greatly improves the efficiency of the operation.

[0034] Furthermore, the control handle 1 is also provided with a suction port connected to the drainage channel 21, and the suction port is detachably connected with a valve cap, and the valve cap is used to seal the suction port. The opening of the valve cap is provided with an elastic sealing member for sealing, and the elastic sealing member seals the opening when the valve cap is not connected to the suction device.

[0035] It can be seen from the above description that, through the design of the suction port and the valve cap, the drainage channel 21 is sealed to reduce the entry of external bacteria and better ensure the internal surgical environment.

[0036] Furthermore, the traction wire controller 11 is connected to the control handle 1 via threads, and the traction wire 26 is fixedly connected to the traction wire controller 11 .

[0037] It can be seen from the above description that the opening and closing position of the baffle 25 can be controlled by rotating the traction wire controller 11 through the thread between the traction wire controller 11 and the control handle 1 .

[0038] Furthermore, both ends of the endoscope channel 22 and the drainage channel 21 are open, and the endoscope channel 22 is located above the drainage channel 21 .

[0039] It can be seen from the above description that by arranging the endoscope channel 22 above the drainage channel 21, the inserted endoscope can be closer to the injection drainage port 24, which can provide a better surgical field of view and will not be blocked by the inserted suction device.

[0040] Furthermore, the outer wall of the drainage channel 21 has a groove extending longitudinally toward the endoscope channel 22, and the endoscope channel 22 is partially embedded in the groove.

[0041] It can be seen from the above description that the groove design of the drainage channel 21 can play a certain degree of positioning role for the endoscope inserted into the endoscope channel 22.

[0042] Furthermore, an annular sealing structure is provided at one end of the endoscope channel 22 away from the control handle 1 , and the material of the annular sealing structure is silicone, and the surface of the endoscope channel 22 and the outer surface of the annular sealing structure are coated with a hydrophobic layer.

[0043] It can be seen from the above description that the endoscope channel 22 is sealed by the annular sealing structure to prevent blood and impurities from invading the channel.

[0044] Furthermore, the cross-section of the outer tube body 2 is narrow on the upper side and wide on the lower side, the upper outer wall of the endoscope channel 22 is consistent with the upper inner wall of the outer tube body 2, the lower outer wall of the drainage channel 21 is consistent with the lower inner wall of the outer tube body 2, and an adhesive that can seal the gap is provided between the inner wall of the outer tube body 2, the outer wall of the endoscope channel 22 and the outer wall of the drainage channel 21.

[0045] It can be seen from the above description that the use of the narrow-upper-wide-lower structure and adhesive can improve the sealing performance of the tube body and minimize the diameter of the outer tube body.

[0046] Furthermore, a sealing structure is provided between the outer wall of the outer tube body 2 at one end close to the control handle 1 and the inside of the control handle 1, the rear end of the drainage channel 21 is bent and connected to the suction port on the control handle, and the rear end of the endoscope channel 22 is passed through the control handle 1.

[0047] It can be seen from the above description that the design of the sealing structure between the outer tube body 2 and the control handle 1 can prevent the liquid from flowing into the control handle 1 along the tube wall of the outer tube body 2 during surgery.

[0048] Furthermore, the baffle 25 also includes a spring for resetting the baffle, the lower end of the spring is connected to the upper end of the baffle 25, the upper end of the spring is connected to the outer tube body 2, and the traction wire 26 passes through the spring.

[0049] It can be seen from the above description that the baffle can be reset automatically by means of the reset spring, which makes the operation more convenient.

[0050] Furthermore, the outer tube body 2, the drainage channel 21 and the endoscope channel 22 are all made of light-transmitting materials.

[0051] It can be seen from the above description that the use of light-transmitting materials can greatly improve the field of view of the endoscope.

[0052] Embodiment 1:

[0053] An endoscope sleeve comprises a control handle 1 and an outer tube body 2 connected in sequence; the control handle 1 comprises a traction wire controller 11; the outer tube body 2 is provided with a drainage channel 21, an endoscope channel 22 and a traction channel 23 for a traction wire 26 to pass through, which are independent of each other; the end of the drainage channel 21 close to the control handle 1 is connected to an aspirator; the end of the outer tube body 2 away from the control handle 1 is provided with an injection drainage port 24, the injection drainage port 24 is covered with a baffle 25, the outer tube body 2 is provided with a slide groove for sliding connection with the baffle 25, the baffle 25 is connected to the traction wire 26, and the baffle 25 is controlled by the traction wire 26 to slide and open and close , the traction wire 26 passes through the traction channel 23 and is connected to the traction wire controller 11; the control handle 1 is also provided with a suction port connected to the drainage channel 21, and the suction port is detachably connected with a valve cap, the valve cap is used to seal the suction port, and the opening of the valve cap is provided with an elastic sealing member for sealing, and the elastic sealing member seals the opening when the valve cap is not plugged into the suction device; the traction wire controller 11 is connected to the control handle 1 by threads, and the traction wire 26 is fixedly connected to the traction wire controller 11; both ends of the endoscope channel 22 and the drainage channel 21 are open, and the endoscope channel 22 is located above the drainage channel 21 ; The outer wall of the drainage channel 21 has a groove extending longitudinally toward the endoscope channel 22, and the endoscope channel 22 is partially embedded in the groove; the endoscope channel 22 is provided with an annular sealing structure at one end away from the control handle 1, and the material of the annular sealing structure is silicone, and the surface of the endoscope channel 22 and the outer surface of the annular sealing structure are coated with a hydrophobic layer; the cross-section of the outer tube body 2 is a structure that is narrow on the upper side and wide on the lower side, the upper outer wall of the endoscope channel 22 coincides with the upper inner wall of the outer tube body 2, the lower outer wall of the drainage channel 21 coincides with the lower inner wall of the outer tube body 2, and the inner wall of the outer tube body 2, the endoscope channel 22 and the lower inner wall of the outer tube body 2 coincide with each other. An adhesive that can seal the gap is provided between the outer wall of the endoscope channel 22 and the outer wall of the drainage channel 21; a sealing structure is provided between the outer wall of the end of the outer tube body 2 close to the control handle 1 and the inside of the control handle 1, the rear end of the drainage channel 21 is bent and connected to the suction port on the control handle, and the rear end of the endoscope channel 22 is penetrated into the control handle 1; the baffle 25 also includes a spring for resetting the baffle, the lower end of the spring is connected to the upper end of the baffle 25, the upper end of the spring is connected to the outer tube body 2, and the traction wire 26 passes through the spring; the outer tube body 2, the drainage channel 21 and the endoscope channel 22 are all made of light-transmitting materials.

[0054] In summary, compared with the traditional method of injecting directly through a syringe, the endoscope cannula provided by the present invention can use the baffle 25 of the injection drainage port to press the lesion site to stop bleeding. After opening the baffle 25, the injection target tissue can be stably held, and the injection solution can be injected after the accurate position of the area to be injected is determined. When the lesion site bleeds too much, the blood can be drawn out in time through the suction device of the drainage channel 21, avoiding the situation where too much blood blocks the endoscope's field of view, thereby causing wounds caused by unnecessary operations of pulling out and inserting the needle due to selecting the wrong injection target area. In summary, the present invention integrates precise injection and suction functions, has a simple structure, is easy to operate, and greatly improves surgical efficiency; through the design of the suction port and the valve cap, the drainage channel 21 is sealed to reduce the entry of external pathogens and better ensure the internal surgical environment; through the thread between the traction wire controller 11 and the control handle 1, the opening and closing position of the baffle 25 can be controlled by rotating the traction wire controller 11; by arranging the endoscope channel above the drainage channel 21, the inserted endoscope can be closer to the injection drainage port, which can better provide the surgical field of view and will not be blocked by the inserted suction device; through the drainage channel 21 The groove design can play a certain role in positioning the endoscope inserted into the endoscope channel 22; the endoscope channel 22 is sealed through the annular sealing structure to prevent blood and impurities from invading the channel; the tube body is better sealed through the narrow upper and wide lower structure and the use of adhesives, and the diameter of the outer tube body 2 is minimized; the design of the sealing structure between the outer tube body 2 and the control handle 1 can prevent the liquid from flowing into the control handle along the tube wall of the outer tube body 2 during surgery; the baffle 25 can reset itself through the reset spring, and the operation is more convenient; the use of light-transmitting materials can greatly improve the field of view of the endoscope.

[0055] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An endoscope cannula, characterized in that: including a control handle and an outer tube body connected in sequence; The control handle includes a traction wire controller; The outer tube body is provided with a mutually independent drainage channel, an endoscope channel and a traction channel for the traction wire to pass through, and the drainage channel is connected to the suction device at one end close to the control handle; An injection drainage port is provided at one end of the outer tube body away from the control handle, the injection drainage port is covered with a baffle, the outer tube body is provided with a slide groove for slidingly connecting with the baffle, the baffle is connected to the traction wire, the baffle is controlled to slide by the traction wire to open and close, and the traction wire is connected to the traction wire controller after passing through the traction channel; The control handle is also provided with a suction port connected to the drainage channel, the suction port is detachably connected with a valve cap, the valve cap is used to seal the suction port, the opening of the valve cap is provided with an elastic sealing member for sealing, and the elastic sealing member seals the opening when the valve cap is not plugged into the suction device; The traction wire is connected to the control handle by a thread, and the traction wire is fixedly connected to the traction wire controller; Both ends of the endoscope channel and the drainage channel are open, and the endoscope channel is located above the drainage channel; The outer wall of the drainage channel has a groove extending longitudinally toward the endoscope channel, and the endoscope channel is partially embedded in the groove.

2. The endoscope cannula according to claim 1, characterized in that: An annular sealing structure is provided at one end of the endoscope channel away from the control handle. The material of the annular sealing structure is silicone. The surface of the endoscope channel and the outer surface of the annular sealing structure are both coated with a hydrophobic layer.

3. The endoscope cannula according to claim 1, characterized in that: The cross-section of the outer tube body is narrow on the upper side and wide on the lower side. The upper outer wall of the endoscope channel fits with the upper inner wall of the outer tube body, and the lower outer wall of the drainage channel fits with the lower inner wall of the outer tube body. An adhesive that can seal the gap is provided between the inner wall of the outer tube body, the outer wall of the endoscope channel and the outer wall of the drainage channel.

4. The endoscope cannula according to claim 1, characterized in that: A sealing structure is provided between the outer wall of the outer tube body at one end close to the control handle and the inside of the control handle. The rear end of the drainage channel is bent and connected to the suction port on the control handle. The rear end of the endoscope channel is passed through the control handle.

5. The endoscope cannula according to claim 1, characterized in that: The baffle also includes a spring for resetting the baffle, the lower end of the spring is connected to the upper end of the baffle, the upper end of the spring is connected to the outer tube body, and the traction wire passes through the spring.

6. The endoscope cannula according to claim 1, characterized in that: The outer tube body, the drainage channel and the endoscope channel are all made of light-transmitting materials.

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