Soft and hard integrated combined mirror and use method thereof

Abstract

The invention provides a soft and hard integrated combined mirror and a using method thereof.The soft and hard integrated combined mirror comprises a hard sheath and an electronic soft endoscope, and the electronic soft endoscope comprises an insertion part; the hard sheath comprises a locking device and a hard sheath tube, the locking device is arranged at the tail part of the hard sheath tube, the head end of the insertion part is inserted into the hard sheath tube from the tail end of the hard sheath tube and extends out of the head end of the hard sheath tube, and the hard sheath tube locks the insertion part through the locking device. The hard sheath and the electronic soft endoscope are combined to form the soft and hard integrated combined mirror, the use of the endoscope can be reduced through the soft and hard integrated combined mirror, and then the use of an endoscope system is reduced, so that the surgical complexity and cost are reduced, and the soft and hard integrated combined mirror is convenient, safe and rapid to use.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a soft-hard integrated mirror and a method of using the mirror. Background Art

[0002] Endoscopes have evolved from optical and electronic endoscopes to the current disposable electronic endoscopes that are safer or more convenient to use. Disposable endoscopes have replaced reusable endoscopes, and the highest replacement rate is in the disposable ureteroscope in the urology field, which is mainly suitable for ureteroscopic lithotripsy. Ureteroscopic lithotripsy can be completed through the natural channels of the human body without puncture. It has the advantages of less trauma, good lithotripsy effect, and high stone removal efficiency. Therefore, it is increasingly favored in clinical practice.

[0003] The rigid ureteroscope is easy to operate, but its front end cannot be bent, so it cannot reach the renal pelvis through the ureter. Although the front end of the flexible ureteroscope is bendable, it cannot be pushed directly from the ureter to the renal pelvis. In order to enable the flexible ureteroscope to reach the renal pelvis, the rigid ureteroscope is first introduced into the human body through the ureter, and then a guide wire is inserted along the working channel of the rigid ureteroscope, and then the flexible scope sheath is inserted along the guide wire, and finally a disposable flexible ureteroscope is inserted through the inner cavity of the flexible scope sheath. The disposable flexible ureteroscope can reach the renal pelvis as far as possible.

[0004] Since rigid ureteroscopes and flexible ureteroscopes often do not share a set of image processors, multiple sets of endoscope systems need to be used simultaneously, making the procedure more complicated and more expensive. Even if rigid ureteroscopes and flexible ureteroscopes can share a set of image processors, it is still necessary to switch endoscopes back and forth, which is inconvenient to use.

[0005] Therefore, how to develop a hard-soft combined ureteroscope that combines a hard ureteroscope and a soft ureteroscope into one has become a technical problem that needs to be solved urgently by technicians in this field. Summary of the invention

[0006] In order to solve the above technical problems, an embodiment of the present invention provides a soft-hard integrated endoscope, including a hard sheath and an electronic soft endoscope, the electronic soft endoscope including an insertion part; the hard sheath includes a locking device and a hard sheath tube, the locking device is arranged at the rear end of the hard sheath tube, the head end of the insertion part is inserted into the hard sheath tube from the rear end of the hard sheath tube, and extends from the head end of the hard sheath tube, and the hard sheath tube locks the insertion part through the locking device.

[0007] Optionally, the head end of the hard sheath tube is provided with a closing end for tightly fitting with the insertion part.

[0008] Optionally, the outer diameter of the hard sheath is less than 9.5Fr and the inner diameter is greater than 8Fr.

[0009] Optionally, the insertion portion includes a hose, and the head of the hose is a rigid head for easy insertion into a human body.

[0010] Optionally, the rigid head is in a beveled circular or bullet-shaped shape.

[0011] Optionally, the outer diameter of the hose is less than 8 Fr, and the diameter of the working channel of the hose is greater than 3.6 Fr.

[0012] Optionally, the locking device includes a fixed part and a movable part, the fixed part is fixed to the rear end of the hard sheath tube, and the movable part is cooperatively connected with the fixed part to lock the insertion part.

[0013] Optionally, the fixed part is a hollow sleeve structure, the head fixing sleeve of the fixed part is sleeved at the tail of the hard sheath, and the outer side of the tail of the fixed sleeve is provided with an external thread; the movable part is a threaded sleeve, and the inner side of the threaded sleeve is provided with an internal thread that matches the external thread, and the insertion part passes through the threaded sleeve and the fixed part in turn, and the threaded sleeve is tightened on the fixed part to clamp the insertion part.

[0014] Optionally, the locking device further comprises an elastic locking member, which is sleeved on the insertion portion and is connected with the fixed portion through the movable portion to compress the elastic locking member so that the elastic locking member clamps the insertion portion.

[0015] Optionally, the fixing portion is a locking valve body structure, the locking valve body structure is a sleeve structure, a receiving groove is provided on the inner side of the tail of the sleeve structure, the inner diameter of the receiving groove is larger than the inner diameter of the head of the sleeve structure, and the elastic locking member is located in the receiving groove; the head of the sleeve structure is fixedly sleeved on the tail of the hard sheath tube, the tail of the sleeve structure is provided with an external thread on the outer side, and the tail of the sleeve structure is also provided with an annular protrusion on the outer side, and the annular protrusion is located at the head end of the external thread;

[0016] The movable part is a locking valve cap structure, which is provided with a through hole for the insertion part to be inserted; the head of the locking valve cap structure includes an outer wall and an inner wall, and the inner wall forms the through hole; the outer wall is sleeved on the outer side of the inner wall, and the inner side of the outer wall is provided with an internal thread adapted to the external thread, and the inner side of the outer wall is also provided with an annular groove adapted to the annular protrusion, and the annular groove is located at the head end of the internal thread;

[0017] During assembly, the tail of the sleeve structure extends between the outer wall and the inner wall of the locking valve cap structure, the annular protrusion is inserted into the annular groove, and the inner wall extends into the accommodating groove. By tightening the internal thread and the external thread, the annular protrusion moves axially in the annular groove, and the head end of the inner wall compresses the elastic locking piece.

[0018] Another embodiment of the present invention further provides a method for using a soft-hard integrated lens, comprising the following steps:

[0019] S1, inserting the insertion part of the electronic flexible endoscope into the hard sheath, so that the tip end of the insertion part extends a certain length from the tip end of the hard sheath, and locking the insertion part on the hard sheath by the locking device to form the soft-hard integrated endoscope;

[0020] S2, inserting the soft-hard integrated mirror into the human body through the ureter;

[0021] S3, inserting a guide wire along the working channel of the electronic flexible endoscope;

[0022] S4, withdrawing the soft-hard integrated mirror;

[0023] S5. Remove the hard sheath in the hard-soft combined endoscope, and insert the electronic soft endoscope into the renal pelvis along the guide wire.

[0024] Compared with the prior art, the technical solution of the embodiment of the present invention has the following beneficial effects:

[0025] The present invention combines a hard sheath and an electronic soft endoscope to form a hard-soft integrated endoscope. The hard-soft integrated endoscope can reduce the use of endoscopes and further reduce the use of endoscope systems, thereby reducing the complexity and cost of the procedure and making it easy, safe and quick to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] 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 labor.

[0027] Figure 1 1 is a schematic diagram of the structure of a soft-hard integrated mirror provided by an embodiment of the present invention;

[0028] Figure 2 is a schematic structural diagram of an electronic flexible endoscope provided by an embodiment of the present invention;

[0029] Figure 3 is a schematic structural diagram of a hard sheath provided by an embodiment of the present invention;

[0030] Figure 4 is an exploded view of a hard sheath provided by one embodiment of the present invention;

[0031] Figure 5 is a schematic structural diagram of an unlocked insertion portion of a locking device provided by an embodiment of the present invention;

[0032] Figure 6 It is a schematic structural diagram of a locking device locking an insertion portion provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices. The terms "on" and "above" and any variations thereof are intended to describe positional relationships and do not represent a relationship of direct contact between the described objects.

[0035] Please refer to Figures 1 to 6 An embodiment of the present invention provides a soft-hard integrated endoscope, including a hard sheath 2 and an electronic soft endoscope 1.

[0036] In order to ensure safety and hygiene and avoid cross infection, in this embodiment, it is preferred that both the hard sheath 2 and the electronic flexible endoscope 1 are disposable.

[0037] The electronic flexible endoscope 1 is a mature technology in the art, and therefore, the present invention does not provide further explanation thereof. The electronic flexible endoscope 1 comprises an operating portion 12 and an insertion portion 11 for inserting into a human body, wherein the operating portion 12 is located at the rear of the insertion portion 11 .

[0038] The hard sheath 2 includes a locking device 22 and a hard sheath tube 21 . The hard sheath tube 21 is a hollow tubular structure. To ensure its rigidity, the hard sheath tube 21 is made of hard material, such as metal material, etc. The locking device 22 is arranged at the tail of the hard sheath tube 21 .

[0039] In this embodiment, the insertion portion 11 of the electronic flexible endoscope 1 is detachably fixed to the hard sheath tube 21 by the locking device 22. Specifically, the head end of the insertion portion 11 is inserted into the hard sheath tube 21 from the tail end of the hard sheath tube 21 and extends from the head end of the hard sheath tube 21, and the hard sheath tube 21 locks the insertion portion 11 by the locking device 22 to form a soft-hard integrated endoscope.

[0040] When the hard-soft combined mirror is inserted into the human body, in order to prevent the human body from being scratched due to the gap between the head end of the hard sheath tube 21 and the insertion part 11, the head end of the hard sheath tube 21 is provided with a closing end for tightly fitting with the insertion part 11, that is, the head end of the hard sheath tube 21 is tightly attached to the insertion part 11 through the closing end, so that there is no gap between the head end of the hard sheath tube 21 and the insertion part 11.

[0041] The present invention does not impose any limitation on the formation of the closing, and it can be a bullet shape, or a beveled circle, etc.

[0042] The smaller the outer diameter of the hard sheath tube 21, the easier it is to insert into the human body passage. Therefore, the outer diameter of the hard sheath tube 21 is preferably less than 9.5Fr. Similarly, the outer diameter of the insertion portion 11 of the electronic flexible endoscope 1 is less than 8Fr. In order to allow the insertion portion 11 of the electronic flexible endoscope 1 to be inserted into the hard sheath tube 21, the inner diameter of the insertion portion 11 of the electronic flexible endoscope 1 is greater than 8Fr.

[0043] A working channel is also provided in the insertion portion 11 of the electronic flexible endoscope 1. The diameter of the working channel is greater than 3.6 Fr, in order to facilitate surgical operations.

[0044] In this embodiment, the insertion portion 11 of the electronic flexible endoscope 1 includes a hose. Since the hose is not easy to insert into the human body passage, the head of the hose is designed to be a rigid head 111 that is easy to insert into the human body. The rigid head 111 is made of a hard material, such as metal. When the electronic flexible endoscope 1 is assembled with the hard sheath 2, the rigid head 111 of the hose extends from the head end of the hard sheath tube 21 to a certain length. The length extending from the head end of the hard sheath tube 21 is less than the length of the rigid head 111, in order to prevent the hose from extending from the head end of the hard sheath tube 21. This embodiment does not impose specific restrictions on the length of the rigid head 111, and generally requires that the length of the rigid head 111 extending from the head end of the hard sheath tube 21 is 3-6 mm.

[0045] The present invention does not limit the shape of the rigid head 111 , as long as it is round and convenient for insertion into the human body, for example, the rigid head 111 is in an oblique circular shape, a bullet head shape, or a cylindrical shape.

[0046] The present invention does not limit the specific structure of the locking device 22 , as long as it can lock the electronic flexible endoscope 1 on the hard sheath 2 and unlock the electronic flexible endoscope 1 from the hard sheath 2 .

[0047] As an embodiment, the locking device 22 includes a fixed portion 221 and a movable portion 224, wherein the fixed portion 221 is fixed to the tail of the hard sheath tube 21, and the movable portion 224 is connected with the fixed portion 221 to lock the insertion portion 11. The movable portion 224 and the fixed portion 221 can be connected in a detachable manner such as a threaded fastening connection or / and a snap connection.

[0048] In a specific embodiment, the fixing portion 221 is a hollow sleeve structure, the head fixing sleeve of the fixing portion 221 is arranged at the tail of the hard sheath 21, and the outer side of the tail of the fixing sleeve is provided with an external thread; the movable portion 224 is a threaded sleeve, and the inner side of the threaded sleeve is provided with an internal thread that matches the external thread, and the insertion portion 11 passes through the threaded sleeve and the fixing portion 221 in turn, and is tightened on the fixing portion 221 by the threaded sleeve to clamp the insertion portion 11.

[0049] In this embodiment, the tail of the fixing sleeve may be an elastomer, or may be provided with a plurality of axially arranged notches on the outer periphery. The purpose is that when the threaded sleeve is tightened on the fixing portion 221, the threaded sleeve squeezes the tail of the fixing portion 221 to reduce its diameter, thereby clamping the insertion portion 11 and locking the insertion portion 11.

[0050] In another specific embodiment, the locking device 22 also includes an elastic locking piece 222, which is sleeved on the insertion portion 11, and is connected to the fixed portion 221 through the movable portion 224 to compress the elastic locking piece 222, so that the elastic locking piece 222 clamps the insertion portion 11.

[0051] In the present invention, the elastic locking member 222 only needs to be able to be deformed by being compressed by the movable portion 224 and the fixed portion 221 to clamp the insertion portion 11 .

[0052] In this embodiment, the elastic locking member 222 is a soft rubber ring, and in the uncompressed state, there is a gap between the elastic locking member 222 and the insertion portion 11, so that the insertion portion 11 can move axially relative to the hard sheath 2. When it is pressed by the movable portion 224 and the fixed portion 221, the elastic locking member 222 is deformed to clamp the insertion portion 11, so that the insertion portion 11 cannot move axially relative to the hard sheath 2.

[0053] The matching connection between the movable portion 224 and the fixed portion 221 may be a threaded connection or / and a clamping connection, etc.

[0054] Specifically, the fixing portion 221 is a locking valve body structure, and the locking valve body structure is a sleeve structure. A receiving groove is provided on the inner side of the tail portion 2212 of the sleeve structure, and the inner diameter of the receiving groove is larger than the inner diameter of the head portion 2211 of the sleeve structure. The elastic locking member 222 is located in the receiving groove. The head portion 2211 of the sleeve structure is fixedly sleeved on the tail portion of the hard sheath 21, and an external thread 22122 is provided on the outer side of the tail portion 2212 of the sleeve structure. Furthermore, an annular protrusion 22121 is also provided on the outer side of the tail portion 2212 of the sleeve structure, and the annular protrusion 22121 is located at the head end of the external thread 22122.

[0055] The movable part 224 is a locking valve cap structure, which is provided with a through hole for the insertion part 11 to be inserted; the head of the locking valve cap structure includes an outer wall 2241 and an inner wall 2242, and the inner wall 2242 forms the through hole; the outer wall 2241 is sleeved on the outer side of the inner wall 2242 at intervals, and the inner side of the outer wall 2241 is provided with an inner thread 22412 adapted to the outer thread 22122, and the inner side of the outer wall 2241 is also provided with an annular groove 22411 adapted to the annular protrusion 22121, and the annular groove 22411 is located at the head end of the inner thread 22412. The axial length of the annular groove 22411 is greater than the axial length of the annular protrusion 22121, so that when the elastic locking member 222 does not lock the insertion part 11, the annular protrusion 22121 can move axially in the annular groove 22411.

[0056] During assembly, first, the tail portion 2212 of the sleeve structure extends between the outer wall 2241 and the inner wall 2242 of the locking valve cap structure, the annular protrusion 22121 is inserted into the annular groove 22411, and the inner wall 2242 extends into the accommodating groove. At this time, the elastic locking member 222 has not locked the insertion portion 11, and there is still a gap 22123 between the insertion portion 11 and the inner wall 2242, and the insertion portion 11 can also move axially relative to the hard sheath 2. Then, by tightening the internal thread 22412 and the external thread 22122, the annular protrusion 22121 moves axially in the annular groove 22411, and the head end of the inner wall 2242 compresses the elastic locking member 222, so that the elastic locking member 222 clamps the insertion portion 11, and the insertion portion 11 can no longer move axially relative to the hard sheath 2.

[0057] In order to facilitate compression of the elastic locking piece 222, a spacer ring 223 is further provided between the head end of the inner wall 2242 and the elastic locking piece 222. The head end of the inner wall 2242 compresses the elastic locking piece 222 through the spacer ring 223, so that the elastic locking piece 222 clamps the insertion part 11.

[0058] In one embodiment of the present invention, a side channel 2213 is further provided on the side of the fixing portion 221 of the sleeve structure.

[0059] Another embodiment of the present invention further provides a method for using a soft-hard integrated mirror, comprising the following steps:

[0060] S1, inserting the insertion part 11 of the electronic flexible endoscope 1 into the hard sheath 2, so that the tip end of the insertion part 11 extends a certain length from the tip end of the hard sheath 2, and locking the insertion part 11 on the hard sheath 2 by the locking device 22, so as to form the soft-hard integrated endoscope;

[0061] S2, inserting the soft-hard integrated mirror into the human body through the ureter;

[0062] S3, inserting a guide wire along the working channel of the electronic flexible endoscope 1;

[0063] S4, withdrawing the soft-hard integrated mirror;

[0064] S5. Remove the hard sheath 2 in the hard-soft combined endoscope through the locking device 22, and insert the electronic soft endoscope 1 into the renal pelvis along the guide wire.

[0065] The present invention combines a hard sheath 2 and an electronic flexible endoscope 1 to form a hard-soft integrated endoscope. The hard-soft integrated endoscope can reduce the use of endoscopes and further reduce the use of endoscope systems, thereby reducing the complexity and cost of the procedure and making it easy, safe and quick to use.

[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A soft-hard integrated lens, characterized in that: It includes a hard sheath and an electronic flexible endoscope, wherein the electronic flexible endoscope includes an insertion part; the hard sheath includes a locking device and a hard sheath tube, the locking device is arranged at the rear end of the hard sheath tube, the head end of the insertion part is inserted into the hard sheath tube from the rear end of the hard sheath tube, and extends from the head end of the hard sheath tube, and the hard sheath tube locks the insertion part through the locking device.

2. The hard-soft integrated mirror according to claim 1, characterized in that: The head end of the hard sheath tube is provided with a closing end for tightly fitting with the insertion part.

3. The hard-soft integrated mirror according to claim 1, characterized in that: The outer diameter of the hard sheath tube is less than 9.5Fr, and the inner diameter is greater than 8Fr.

4. The hard-soft integrated mirror according to claim 1, characterized in that: The insertion part comprises a hose, and the head of the hose is a rigid head which is convenient for insertion into a human body.

5. The hard-soft combined mirror according to claim 4, characterized in that: The rigid head is in the shape of a beveled circle or a bullet head.

6. The hard-soft integrated mirror according to claim 4, characterized in that: The outer diameter of the hose is less than 8Fr, and the diameter of the working channel of the hose is greater than 3.6Fr.

7. The hard-soft combined mirror according to claim 1, characterized in that: The locking device comprises a fixed part and a movable part, wherein the fixed part is fixed to the tail of the hard sheath tube, and the movable part is connected with the fixed part through cooperation to lock the insertion part.

8. The hard-soft combined mirror according to claim 7, characterized in that: The fixing part is a hollow sleeve structure, the head fixing sleeve of the fixing part is sleeved at the tail of the hard sheath, and the outer side of the tail of the fixing sleeve is provided with an external thread; the movable part is a threaded sleeve, and the inner side of the threaded sleeve is provided with an internal thread matched with the external thread, the insertion part passes through the threaded sleeve and the fixing part in turn, and the threaded sleeve is tightened on the fixing part to clamp the insertion part.

9. The hard-soft combined mirror according to claim 7, characterized in that: The locking device further comprises an elastic locking member, which is sleeved on the insertion portion and is connected with the fixed portion through the movable portion to compress the elastic locking member so that the elastic locking member clamps the insertion portion.

10. The hard-soft combined mirror according to claim 9, characterized in that: The fixing part is a locking valve body structure, and the locking valve body structure is a sleeve structure. A receiving groove is provided on the inner side of the tail of the sleeve structure, and the inner diameter of the receiving groove is larger than the inner diameter of the head of the sleeve structure. The elastic locking member is located in the receiving groove. The head fixing sleeve of the sleeve structure is arranged on the tail of the hard sheath tube, and an external thread is provided on the outer side of the tail of the sleeve structure. Moreover, an annular protrusion is also provided on the outer side of the tail of the sleeve structure, and the annular protrusion is located at the head end of the external thread. The movable part is a locking valve cap structure, which is provided with a through hole for the insertion part to be inserted; the head of the locking valve cap structure includes an outer wall and an inner wall, and the inner wall forms the through hole; the outer wall is sleeved on the outer side of the inner wall, and the inner side of the outer wall is provided with an internal thread adapted to the external thread, and the inner side of the outer wall is also provided with an annular groove adapted to the annular protrusion, and the annular groove is located at the head end of the internal thread; During assembly, the tail of the sleeve structure extends between the outer wall and the inner wall of the locking valve cap structure, the annular protrusion is inserted into the annular groove, and the inner wall extends into the accommodating groove. By tightening the internal thread and the external thread, the annular protrusion moves axially in the annular groove, and the head end of the inner wall compresses the elastic locking piece.

11. The method for using the soft-hard integrated mirror according to any one of claims 1 to 10, characterized in that: The following steps are involved: S1, inserting the insertion part of the electronic flexible endoscope into the hard sheath, so that the tip end of the insertion part extends a certain length from the tip end of the hard sheath, and locking the insertion part on the hard sheath by the locking device to form the soft-hard integrated endoscope; S2, inserting the soft-hard integrated mirror into the human body through the ureter; S3, inserting a guide wire along the working channel of the electronic flexible endoscope; S4, withdrawing the soft-hard integrated mirror; S5. Remove the hard sheath in the hard-soft combined endoscope, and insert the electronic soft endoscope into the renal pelvis along the guide wire.

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