Endoscope guiding device
By setting a developing ring on the sheath of the endoscopic guide device and observing the position of the developing ring using the contrast device, the problem that the endoscopic cannot accurately reach the small bronchus in the prior art is solved, and precise positioning and efficient lavage are achieved.
Patent Information
- Application Number
- CN202420518634.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-15
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-03-15
AI Technical Summary
The existing endoscopic guidance device cannot accurately reach the smaller bronchus, resulting in inaccurate extraction of tissue at the lesion site and poor insertion of the lavage catheter.
A developing ring is set on the sheath tube, and the position of the development ring is observed through the contrast device, and whether the distal end of the sheath tube reaches the position of the lesion can be determined to achieve accurate positioning.
Through the use of the developing ring, the distal position of the sheath can be accurately judged, the accuracy of lavage and biopsy can be improved, and the difficulty of operation can be reduced.
Smart Images
Figure CN222467811U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical instruments, in particular to an endoscope guiding device. Background Art
[0002] In clinical practice, when using endoscopes to perform biopsy sampling, bacteriology, cytology examinations, alveolar lavage and other procedures on the lesion site, a sheath (catheter) is often used as a channel to facilitate reaching the lesion site.
[0003] In the existing biopsy sampling technology, the endoscope cannot reach the smaller bronchi and cannot accurately extract tissue at the lesion site, which places extremely high demands on the doctor's operation.
[0004] At present, the lavage catheter is generally delivered to the target bronchus through a bronchoscope and then injected through the injection port to inject physiological saline into the target bronchus. After lavage, the working state of the lavage catheter is switched to the suction state, and the negative pressure device is turned on to complete the suction, and one lavage and suction is completed. Due to the limited size of the bronchoscope, it cannot be extended into a more secondary bronchus. The catheter can only be extended from the bronchoscope and then continue to extend into the sub-segment. After entering, the doctor cannot observe the position of the catheter and cannot tell whether it has reached the area that needs lavage; the drug delivery device may collide with the inner wall of the sheath when inserted, causing the insertion to be unsmooth. Utility Model Content
[0005] The main technical problem solved by the utility model is to provide an endoscope guiding device, in which a developing ring is arranged on the sheath tube to avoid all or some of the above-mentioned defects.
[0006] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide an endoscope guiding device, the endoscope guiding device comprises a sheath tube and a sheath tube joint, the sheath tube joint comprises a handle, a liquid inlet tube and a connecting tube, the liquid inlet tube and the connecting tube are connected to form a hollow channel, the connecting tube is connected to one end of the sheath tube, and the liquid inlet tube is used to be connected to an external injection device;
[0007] The sheath tube connector also includes a negative pressure connector, which is used to connect to an external negative pressure device;
[0008] A developing ring is sleeved on the sheath tube.
[0009] Wherein, the developing ring is arranged on an end of the sheath tube away from the sheath tube joint.
[0010] Wherein, the shape of the developing ring is semicircular.
[0011] Wherein, the material of the developing ring is titanium, platinum-iridium alloy or gold.
[0012] Among them, the connecting tube includes a connecting section and a step along the axial direction, the connecting section extends from the handle, and the step is covered by the handle; the inner wall of the step is raised to form a first step, and the end of the sheath tube is inserted into the connecting tube through the connecting section and the step in sequence, and the end of the sheath tube abuts against the first step.
[0013] Wherein, the outer diameter of the sheath tube is equal to the inner diameter of the connecting tube.
[0014] Wherein, the negative pressure joint is connected to the outside of the handle and communicates with the connecting pipe through the handle.
[0015] Wherein, the negative pressure joint includes a first section and a second section, the second section is connected to the handle, the first section and the second section are both hollow cylindrical in shape, the outer diameter of the first section gradually increases from the part away from the handle to the part close to the handle, the outer diameter of the second section is smaller than the outer diameter of the first section, and a second step is formed at the connection between the first section and the second section.
[0016] Among them, the endoscope guiding device also includes a closing piece, which includes a ring, a connecting belt and a cap. The ring is hollow and is sleeved on the outer wall of the liquid inlet tube; the two ends of the connecting belt are respectively connected to the ring and the cap; the cap is movably covered on the end of the liquid inlet tube.
[0017] Wherein, the cover cap is also provided with cover holes penetrating through the opposite two ends of the cover cap.
[0018] Compared with the prior art, the beneficial effects achieved by the endoscope guiding device of the utility model are as follows: a sheath and a sheath joint are arranged on the endoscope guiding device, the sheath joint can realize irrigation and suction, a developing ring is arranged on the sheath, and the distal position of the sheath can be observed through the imaging equipment, so as to judge whether it has reached the lesion position, realize precise positioning, and make irrigation more accurate. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments 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.
[0020] Figure 1 It is a structural schematic diagram of the endoscope guiding device of the utility model;
[0021] Figure 2 yes Figure 1 Schematic diagram of the structure of the middle sheath tube connector;
[0022] Figure 3 is a partial cross-sectional schematic diagram of an endoscope guiding device;
[0023] Figure 4 yes Figure 3 A partial enlarged view of the middle A part;
[0024] Figure 5 is a schematic diagram of the structure of the closure;
[0025] Figure 6 It is a schematic diagram when the cap of the closure is separated from the sheath connector. DETAILED DESCRIPTION
[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0027] In the utility model embodiment, all directional indications (such as up, down, left, right, front, back ...) are only used to explain the relative position relationship, movement, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly. The terms "first", "second", etc. in this application are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the steps or units listed, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices.
[0028] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.
[0029] See also Figures 1 to 6 , Figure 1It is a schematic diagram of the structure of the endoscope guiding device of the utility model. The endoscope guiding device includes a sheath tube 1 and a sheath tube connector 2. The sheath tube 1 is used to transmit liquid medicine to narrow lesions or organs of the human body. The sheath tube connector 2 includes a handle 21, a liquid inlet tube 22 and a connecting tube 23. The handle 21 is used for the user to hold it by hand during operation. The liquid inlet tube 22 and the connecting tube 23 are connected to form a hollow channel. The connecting tube 23 is connected to one end of the sheath tube 1. The liquid inlet tube 22 is used to connect with an external injection device. The injection device can be a syringe filled with liquid medicine or an irrigation catheter device. The external injection device can be connected to the liquid inlet tube 22. The liquid flows through the hollow channel to the connecting tube 23, and then reaches the corresponding human organ through the sheath tube 1. The sheath tube connector 2 also includes a negative pressure connector 24. The negative pressure connector 24 is used to connect with an external negative pressure device to form a negative pressure state to extract the liquid injected into the human body. The sheath tube 1 is provided with a developing ring 3, which has a developing function under imaging equipment such as an X-ray machine, so that the user can see the position of the end of the sheath tube 1 in the human body and confirm whether it has reached the lesion location, thereby accurately injecting the liquid into the preset position.
[0030] In one embodiment, the liquid in the injection device is saline solution, and the end of the sheath 1 is extended into the narrow bronchus to inject the saline solution into the target bronchus. After irrigation, the working state of the endoscope guidance device is switched to the suction state, and the negative pressure device is turned on for suction. The saline solution after irrigation is discharged through the negative pressure connector 24, and an irrigation and suction is completed.
[0031] For ease of description and understanding, the distal end in this application is the end close to the patient's lesion or bronchus, and the proximal end is the operator's operating end. When the endoscope guiding device is in use, the sheath tube connector 2 is close to the operating end, and is therefore the proximal end relative to the sheath tube 1, and the sheath tube 1 is close to the patient's lesion or bronchus, and is therefore the distal end relative to the sheath tube connector 2.
[0032] See also Figure 2 In the present application, the shape of the handle 21 is adapted to the human hand and is relatively wide. The user can firmly hold the handle 21, so that the endoscope guiding device can be better operated, making it more convenient and labor-saving when injecting liquid, ensuring that the distal end of the sheath 1 can always be aligned with the bronchial part without deviation, thereby reducing the difficulty of operation and making it easier for the doctor to shake hands. The doctor can concentrate on the handle 21, which is convenient for the doctor to fix the endoscope guiding device during the operation, thereby performing surgical treatment better and faster, ensuring the safety and operability of the operation and saving operation time.
[0033] The developing ring 3 in the present application is arranged at one end of the sheath tube 1 away from the sheath tube connector 2, that is, the distal end of the sheath tube 1, which is more convenient for indicating the position of the end of the sheath tube 1. The developing ring 3 is arranged on the sheath tube 1, and when the guide device enters the body, the distal end position of the sheath tube 1 can be observed by the imaging device, so as to judge whether it reaches the lesion or bronchus position, realize accurate positioning, make the irrigation more accurate, save the operation time, improve the operation efficiency, and protect the health of the patient.
[0034] In the present application, the distance between the developing ring 3 and the distal end of the sheath tube 1 is any value between 0.5-2 mm. In one embodiment, the distance between the developing ring 3 and the distal end of the sheath tube 1 is 1 mm, which is closer to the distal end of the sheath tube 1. The position of the distal end of the sheath tube 1 can be determined by simply observing the position of the developing ring 3, which allows the user to better observe the moving distance of the endoscope guiding device in the human body.
[0035] In the present application, the number of the developing ring 3 can be single or multiple. In one embodiment, the number of the developing ring 3 is one, which is developed under the imaging device to indicate the position of the distal end of the sheath tube 1 in the human body.
[0036] In another embodiment, the number of the developing rings 3 is multiple, and the multiple developing rings 3 are arranged in sequence from near to far from the far end of the sheath tube 1. The multiple developing rings 3 form multiple markers in the extending direction of the sheath tube, which can play a better indicating role than a single developing ring 3, and at the same time, when a single developing ring 3 is damaged or cannot function due to other accidents, the other developing rings 3 can still function.
[0037] The shape of the developing ring 3 in the present application can be circular, semicircular or arc-shaped. In one embodiment, the shape of the developing ring 3 is semicircular, and the radius is close to the outer diameter of the sheath tube 1, and fits with the outer wall of the sheath tube 1.
[0038] The material of the developing ring 3 in the present application is titanium, platinum-iridium alloy or gold. It has a developing function under an imaging device such as an X-ray machine, so that the position of the distal end of the sheath tube 1 in the human body can be clearly seen, and whether it reaches the bronchial position can be confirmed, providing support for accurate bronchial lavage.
[0039] See also Figure 3 to Figure 4The connecting tube 23 in the present application includes a connecting section 231 and a platform 232 along the axial direction. The connecting section 231 extends from the handle 21, and the platform 232 is covered by the handle 21; the inner wall of the platform 232 is raised to form a first step 233, and the end of the sheath 1 is inserted into the connecting tube 23 through the connecting section 231 and the platform 232 in sequence. The end of the sheath 1 is in contact with the first step 233, ensuring that the sheath 1 will not move toward the proximal end when connected, which is convenient for understanding the contact distance between the sheath 1 and the sheath connector 2 when producing the sheath 1, and improving production efficiency. At the same time, the outer diameter of the sheath 1 is equal to the inner diameter of the connecting tube 23, and the two are tightly connected. The size of the inner wall of the sheath 1 is consistent with the inner diameter at the first step 233. After the sheath 1 and the sheath connector 2 are connected in coordination, no step will be formed at the connection. When the instrument passes through the coordinated connection between the two, there will be no sense of jamming, and it can pass very smoothly and quickly, improving the doctor's operating experience and providing better treatment for patients.
[0040] The liquid inlet tube 22 in the present application is arranged at the proximal end of the sheath tube connector 2 and is communicated with the connecting tube 23 .
[0041] The negative pressure connector 24 in the present application is connected to the outside of the handle 21 and is connected to the connecting tube 23 through the handle 21, so as to facilitate the suction of waste liquid to the outside after bronchial lavage.
[0042] The negative pressure connector 24 in the present application includes a first section 241 and a second section 242, the second section 242 is connected to the handle 21, the first section 241 and the second section 242 are both hollow cylindrical in shape, the outer diameter of the first section 241 from the part away from the handle 21 to the part close to the handle 21 gradually increases, forming a pagoda shape, the outer diameter of the second section 242 is smaller than the outer diameter of the first section 241, and the connection between the first section 241 and the second section 242 forms a second step. The negative pressure connector 24 is configured in the above shape to be in good contact with the collection device, and the two will not separate when the negative pressure suction irrigation fluid is performed, and can be stably and reliably connected to the external negative pressure suction device.
[0043] See also Figure 5 to Figure 6 The endoscope guiding device in the present application further includes a sealing member 4, which includes a ferrule 41, a connecting belt 42 and a cap 43. The ferrule 41 is hollow and is sleeved on the outer wall of the liquid inlet tube 22; the two ends of the connecting belt 42 are respectively connected to the ferrule 41 and the cap 43; the cap 43 is movably covered on the proximal end of the liquid inlet tube 22. When the cap 43 is removed from the liquid inlet tube 22, the irrigation liquid can be injected into the liquid inlet tube 22. When the irrigation liquid is sucked under negative pressure, the cap 43 can be sealed to the liquid inlet tube 22, that is, a sealed state is formed, and no liquid will flow out of this port.
[0044] The cap 43 in the present application is also provided with cap holes 431 penetrating opposite ends of the cap 43. When performing negative pressure suction of irrigation fluid, the user can adjust the pressure during negative pressure suction by pressing the cap holes 431 to provide safe treatment for the patient.
[0045] The method of using the endoscope guiding device of the present application is: select the model and specification suitable for the patient, take out the product from the inner packaging bag; insert it into the working channel of the endoscope, the distal end of the sheath 1 reaches the lesion position, and the position where it enters the human body is determined by the imaging device, and then the biopsy instrument is inserted into the human body through the sheath connector 2, and reaches the lesion site to extract the lesion tissue, and after the biopsy instrument is withdrawn, the lesion tissue is tested. Alternatively, the guiding device is used to perform lung lavage or lesion medication on the patient.
[0046] When using the endoscope guiding device of the utility model, a sheath and a sheath joint are arranged on the endoscope guiding device, the sheath joint can realize irrigation and suction, a developing ring is arranged on the sheath, and the distal end position of the sheath can be observed through the imaging device, so as to judge whether it has reached the lesion position, realize precise positioning, and make irrigation more accurate.
[0047] The above description is only an implementation method of the present utility model, and does not limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present utility model.
Claims
1. An endoscope guiding device, characterized in that: The endoscope guiding device comprises a sheath tube and a sheath tube joint, wherein the sheath tube joint comprises a handle, a liquid inlet tube and a connecting tube, wherein the liquid inlet tube and the connecting tube are connected to form a hollow passage, the connecting tube is connected to one end of the sheath tube, and the liquid inlet tube is used to be connected to an external injection device; The sheath tube connector also includes a negative pressure connector, which is used to connect to an external negative pressure device; A developing ring is sleeved on the sheath tube.
2. The endoscope guiding device according to claim 1, characterized in that: The developing ring is arranged on one end of the sheath tube away from the sheath tube joint.
3. The endoscope guiding device according to claim 2, characterized in that: The developing ring is in a semicircular shape.
4. The endoscope guiding device according to claim 3, characterized in that: The material of the developing ring is titanium, platinum-iridium alloy or gold.
5. The endoscope guiding device according to claim 1, characterized in that: The connecting tube includes a connecting section and a step along the axial direction, the connecting section extends from the handle, and the step is covered by the handle; the inner wall of the step is raised to form a first step, and the end of the sheath tube is inserted into the connecting tube through the connecting section and the step in sequence, and the end of the sheath tube abuts against the first step.
6. The endoscope guiding device according to claim 5, characterized in that: The outer diameter of the sheath tube is equal to the inner diameter of the connecting tube.
7. The endoscope guiding device according to claim 1, characterized in that: The negative pressure joint is connected to the outside of the handle and communicates with the connecting pipe through the handle.
8. The endoscope guiding device according to claim 7, characterized in that: The negative pressure joint includes a first section and a second section, the second section is connected to the handle, the first section and the second section are both hollow cylindrical in shape, the outer diameter of the first section gradually increases from a portion away from the handle to a portion close to the handle, the outer diameter of the second section is smaller than the outer diameter of the first section, and a second step is formed at the connection between the first section and the second section.
9. The endoscope guiding device according to claim 1, characterized in that: The endoscope guiding device also includes a closing piece, which includes a ring, a connecting belt and a cap. The ring is hollow and is sleeved on the outer wall of the liquid inlet pipe; the two ends of the connecting belt are respectively connected to the ring and the cap; the cap is movably covered on the end of the liquid inlet pipe.
10. The endoscope guiding device according to claim 9, characterized in that: The cover cap is also provided with cover holes penetrating through the opposite two ends of the cover cap.