Vaginal cannula and laparoscopic surgery system

Abstract

A vaginal cannula (1), comprising a lighting module (10). The lighting module (10) comprises: an incident end (101); a light guide portion (102), one end of which is connected to the incident end (101); and a lighting end (103), which is connected to the other end of the light guide portion (102) and is arranged at the proximal end (120) of the vaginal cannula (1). Light from the incident end (101) is directed to the lighting end (103) via the light guide portion (102), and is emitted from the lighting end (103). A laparoscopic surgery system (100), comprising: a vaginal cannula (1); an endoscope (2); and a robotic arm (3), which is connected to the endoscope (2), wherein the robotic arm (3) is configured to adjust the viewing direction of the endoscope (2); and the robot arm (3) is configured to adjust the viewing direction of the endoscope (2) to be aligned with the area indicated by a visual marker formed by the lighting module (10) of the vaginal cannula (1).

Description

Vaginal cannulation and laparoscopic surgery systems Technical Field

[0001] The present application relates to the technical field of surgical instruments, and in particular to a vaginal cannula and a laparoscopic surgical system. Background Art

[0002] During hysteroscopic hysterectomy, the cervix is ​​often incised to allow access to the vagina and the uterus to be separated from the vagina. However, it is difficult to quickly and accurately locate the target area for surgery through the hysteroscope inserted into the abdominal cavity, which increases the difficulty and reduces the safety of the surgery. For example, in extreme cases, it may even cause accidental perforation of the uterus or misalignment of the incision position.

[0003] Summary of the Invention

[0004] Therefore, it is necessary to provide a vaginal cannula and a laparoscopic surgical system to address the above technical problems. During surgery using this laparoscopic surgical system, a vaginal cannula with a lighting module is inserted into the patient's vagina. The light emitted by the lighting module passes through the vaginal wall at the cervicovaginal junction (vault) to form a visual mark indicating the position. The visual mark can be observed by a hysteroscope inserted into the abdominal cavity to accurately locate the target area of ​​the surgery. As a result, the operator can easily and quickly locate the target area of ​​the surgery, reducing the difficulty of the surgery and improving the safety of the surgery.

[0005] According to one aspect of the present application, a vaginal cannula is provided, comprising a lighting module. The lighting module comprises: an incident end; a light guide portion, one end of which is connected to the incident end; and an illumination end, which is connected to the other end of the light guide portion and is disposed at a proximal end (120) of the vaginal cannula (1). Light from the incident end is guided to the illumination end via the light guide portion and emitted through the illumination end.

[0006] The lighting module provided in accordance with embodiments of the present application can form a visual marker indicating the location on the patient's vaginal wall during surgery (e.g., a hysterectomy performed using a hysteroscope). This visual marker can be observed through a hysteroscope inserted into the abdominal cavity to accurately locate the target area of ​​the surgery. This allows the operator (e.g., a surgeon or surgical assistant) to easily and quickly locate the target area of ​​the surgery, reducing surgical difficulty and improving surgical safety.

[0007] In one embodiment, the lighting module further includes a light-emitting portion, which is disposed at the incident end.

[0008] In one embodiment, the vaginal cannula further comprises a power supply unit electrically connected to the light emitting unit to supply energy to the light emitting unit.

[0009] In one embodiment, the incident end is connected to an external light source.

[0010] In one embodiment, the lighting module further includes a fixing portion, which is disposed at the lighting end and configured to fix the lighting module to the inner wall of the vaginal cannula.

[0011] In one embodiment, the incident end is disposed at the distal end of the vaginal cannula, and the light guiding portion includes a base and a tube body of the vaginal cannula.

[0012] In one embodiment, the lighting end includes a ring-shaped light emitting element.

[0013] In one embodiment, the vaginal cannula further comprises: a base having a first through hole; a tube body sleeved with the base and having a second through hole; the first through hole and the second through hole communicating with each other and jointly defining a third through hole; and the lighting module being disposed in the third through hole.

[0014] In one embodiment, the base is provided with a first groove, which extends along the axial direction of the first through hole, and the tube body is provided with a second groove, which extends along the axial direction of the second through hole. The first groove and the second groove are arranged to be aligned with each other and connected to jointly define a receiving groove, and the lighting module is received in the receiving groove.

[0015] In one embodiment, the base includes a first part and a second part connected to each other, the first through hole passes through the first part and the second part, the outer diameter of the second part is slightly smaller than the inner diameter of the second through hole, the second part is sleeved in the second through hole of the tube body, and the first groove is at least arranged in the second part.

[0016] In one embodiment, the power supply unit is disposed on the first portion, and the light emitting unit is electrically connected to the power supply unit through the first groove.

[0017] In one embodiment, the fixing portion is made of an elastic material and includes an arc-shaped structure. The fixing portion is pressed against the inner wall of the third through hole by a rebound force to fix the lighting module in the third through hole.

[0018] In one embodiment, the fixing portion is provided with a connecting hole, and the lighting end of the lighting module is inserted into the connecting hole via a first end of the connecting hole to connect the lighting module to the fixing portion.

[0019] In one embodiment, a light-through hole is provided at a second end of the connecting hole opposite to the first end to allow light emitted from the lighting end to pass through.

[0020] According to another aspect of the present application, a laparoscopic surgical system is provided, comprising: a vaginal cannula; an endoscope; and a robotic arm connected to the endoscope, the robotic arm configured to adjust the direction of the endoscope's field of view. The robotic arm is capable of adjusting the direction of the endoscope's field of view to at least align with an area indicated by a visual marker formed by an illumination module of the vaginal cannula.

[0021] According to the laparoscopic surgical system provided in an embodiment of the present application, during surgery (for example, a hysterectomy performed using a hysteroscope), the operator (for example, a surgeon or a surgical assistant) can simply and quickly locate the target area of ​​the surgery by aligning the field of view of the endoscope toward the area indicated by the visual mark formed by the lighting module of the vaginal cannula, thereby reducing the difficulty of the surgery and improving the safety of the surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of the preferred embodiments of the present application shown in the accompanying drawings. Like reference numerals indicate like parts throughout the drawings, and the drawings are not intentionally drawn to scale with actual size, with the emphasis on illustrating the subject matter of the present application.

[0023] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0024] FIG1 is a schematic structural diagram of a vaginal cannula according to one embodiment of the present application;

[0025] FIG2 is a schematic structural diagram of the vaginal cannula shown in FIG1 from another perspective;

[0026] FIG3 is a schematic structural diagram of the vaginal cannula shown in FIG1 from another perspective;

[0027] FIG4 is a schematic structural diagram of the vaginal cannula shown in FIG1 with the lighting module removed from another perspective;

[0028] FIG5 is a schematic structural diagram of the vaginal cannula shown in FIG1 with the lighting module removed;

[0029] FIG6 is a schematic structural diagram of a lighting module according to an embodiment of the present application;

[0030] FIG7 is a schematic structural diagram of a base of a vaginal cannula according to one embodiment of the present application;

[0031] FIG8 is a schematic structural diagram of the base of the vaginal cannula shown in FIG7 from another perspective;

[0032] FIG9 is a schematic structural diagram of a base and a lighting module according to an embodiment of the present application;

[0033] FIG10 is a schematic structural diagram of a vaginal cannula according to one embodiment of the present application;

[0034] FIG11 is a schematic structural diagram of the lighting module in the vaginal cannula shown in FIG10 ;

[0035] FIG12 is a schematic structural diagram of a fixing portion of a lighting module according to an embodiment of the present application;

[0036] FIG13 is a schematic structural diagram of the fixing portion of the lighting module shown in FIG12 from another perspective;

[0037] FIG14 is a partial exploded view of a vaginal cannula according to one embodiment of the present application;

[0038] FIG15 is a schematic cross-sectional view of the incident end 101 shown in FIG14;

[0039] FIG16 is a partial exploded view of a vaginal cannula according to one embodiment of the present application;

[0040] FIG17 is a schematic structural diagram of a laparoscopic surgical system according to one embodiment of the present application; and

[0041] FIG18 is a schematic diagram of a lighting area of ​​a lighting module according to an embodiment of the present application. DETAILED DESCRIPTION

[0042] To facilitate understanding of the present application, a more comprehensive description of the present application will be provided below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of the present application. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present disclosure.

[0043] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to the other element and integrated therewith, or there may be an intermediate element. The terms "mounted", "one end", "the other end" and similar expressions used herein are for illustrative purposes only.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0045] With reference to Figures 1 to 3 and Figure 6, one embodiment of the present application provides a vaginal cannula 1, comprising: a lighting module 10, a base 11, and a tube body 12. The base 11 is provided with a first through hole 111. The tube body 12 is sleeved with the base 11 and is provided with a second through hole 121. The first through hole 111 and the second through hole 121 are connected to each other and jointly define a third through hole 13. The lighting module 10 is arranged in the third through hole 13. The vaginal cannula 1 includes a proximal end 120 and a distal end 110. The proximal end 120 is used to be inserted into the patient's tissue (e.g., the vagina). The distal end 110 is the end of the vaginal cannula 1 opposite the proximal end 120.

[0046] In one embodiment, the lighting module 10 includes an incident end 101, a light guide 102, and an illumination end 103. One end of the light guide 102 is connected to the incident end 101. The illumination end 103 is connected to the other end of the light guide 102 and is disposed at the proximal end 120 of the vaginal cannula 1. Light from the incident end 101 is guided to the illumination end 103 via the light guide 102 and emitted from the proximal end 120 of the vaginal cannula 1 through the illumination end 103. Specifically, when the vaginal cannula 1 is inserted into a patient's tissue (e.g., the vagina), light emitted from the illumination end 103 at the proximal end 120 passes through the wall of the human tissue (e.g., the vaginal wall), thereby forming a visual marker (e.g., a light spot) on the wall of the human tissue indicating the location. This visual marker provides visual assistance for other surgical instruments inserted into the abdominal cavity. For example, this visual marker can be observed through a hysteroscope, thereby enabling simple and rapid positioning of the target surgical area, such as the incision site.

[0047] Referring to Figures 4 and 5, in one embodiment, the base 11 is provided with a first groove 112 extending axially along the first through-hole 111. The body 12 is provided with a second groove 122 extending axially along the second through-hole 121. The first groove 112 and the second groove 122 are aligned and communicate with each other, thereby defining a receiving groove 14. The lighting module 10 is received in the receiving groove 14. The receiving groove 14 provides a mounting and securing space for the lighting module 10, allowing the lighting module 10 to be inserted into the patient's body along with the vaginal cannula 1 to form a visual mark on the wall of the human tissue indicating the target area for surgery.

[0048] 7 to 9 , in one embodiment, the base 11 includes a first portion 113 and a second portion 114 connected to each other. The first through hole 111 passes through the first portion 113 and the second portion 114. The outer diameter of the second portion 114 is slightly smaller than the inner diameter of the second through hole 121. The second portion 114 is sleeved in the second through hole 121 of the tube body 12, and the first groove 112 is at least provided in the second portion 114. The first portion 113 and the second portion 114 form a stepped tubular structure. Specifically, the outer diameter of the first portion 113 is slightly larger than the outer diameter of the second portion 114. However, this is merely exemplary, and those skilled in the art can reasonably set the outer diameters of the first portion 113 and the second portion 114 as needed.

[0049] Referring to Figures 6 and 9 , in one embodiment, the illumination module 10 further includes a light-emitting unit 104. The light-emitting unit 104 is disposed at the incident end 101. Optionally, the light-emitting unit 104 includes an LED light source. Light emitted by the light-emitting unit 104 is guided by the light-guiding unit 102 to the illumination end 103, and then emitted through the illumination end 103 to form a visual mark on the wall of human tissue indicating the target area for surgery.

[0050] Referring to Figure 7, in one embodiment, the lighting module 10 further includes a power supply unit 105, which is electrically connected to the light-emitting unit 104 to supply energy to the light-emitting unit 104. Optionally, the power supply unit 105 includes a rechargeable battery. Optionally, the power supply unit 105 is disposed on the outer surface of the first portion 113, and the light-emitting unit 104 is electrically connected to the power supply unit 105 through the first slot 112. Those skilled in the art will appreciate that the power supply unit 105 can be disposed in other suitable locations, such as within the first portion 113, as needed.

[0051] Referring to Figure 10 , in one embodiment, the incident end 101 of the illumination module 10 may not be provided with the light-emitting portion 104 but may instead be connected to an external light source. Specifically, the incident end 101 of the illumination module 10 may protrude from the distal end 110 of the vaginal cannula 1 to connect to the external light source. Light emitted by the external light source is guided by the light guide 102 to the illumination end 103, where it is emitted to form a visual mark on the tissue wall indicating the target surgical area.

[0052] In the embodiment shown in FIG. 10 and FIG. 11 , the vaginal cannula 1 is a McCartney Tube. TM), the lighting module 10 is fixed to the inner wall of the vaginal cannula 1 by a fixing portion 106 provided at the lighting end 103. Specifically, the fixing portion 106 is a roughly arc-shaped structure made of elastic material, and the diameter of the arc-shaped structure is slightly larger than the diameter of the third through hole 13. During assembly, the fixing portion 106 is pressed into the end of the vaginal cannula 1 that enters the patient's body, and the fixing portion 106 will be deformed, thereby generating a rebound force. The fixing portion 106 is pressed against the inner wall of the third through hole 13 by the rebound force, thereby fixing the lighting module 10 in the third through hole 13. During disassembly, it is only necessary to press the arc-shaped structure of the fixing portion 106 toward the center of the third through hole 13 to remove the fixing portion 106 from the inner wall of the third through hole 13 to remove the lighting module 10.

[0053] 12 and 13 , in one embodiment, the fixing portion 106 is provided with a connection hole 1061. The lighting end 103 of the lighting module 10 is inserted into the connection hole 1061 via a first end 1062 of the connection hole 1061 to connect the lighting module 10 to the fixing portion 106. A light-through hole 1064 is further provided at a second end 1063 of the connection hole 1061, opposite to the first end 1062, to allow light emitted from the lighting end 103 to pass through.

[0054] In the embodiment shown in Figures 10 to 13, the lighting module 10 is detachably mounted in a vaginal cannula 1 such as a McCartney tube. This is very convenient for existing vaginal cannula 1 because it can form a visual mark indicating the target area of ​​surgery on the wall of human tissue without modifying the structure of the existing vaginal cannula 1, so as to easily and quickly locate the target area of ​​surgery, such as the incision position.

[0055] 14 and 15 , in one embodiment, the incident end 101 of the lighting module 10 is formed into a ring shape and is fixed to the distal end 110 of the vaginal cannula 1. At least a portion of the base 11 and the body 12 of the vaginal cannula 1 are made of a light-guiding material (e.g., a transparent material), thereby serving as the light-guiding portion 102. In this embodiment, light emitted by the light-emitting portion 104 is uniformly distributed in a ring shape via the ring-shaped incident end 101. This ring-shaped light is then transmitted by the base 11 and the body 12 to the lighting end 103 and emitted from the proximal end 120 of the vaginal cannula 1 through the lighting end 103. Optionally, the lighting end 103 includes an annular light emitting member 1030 to ensure that the emitted light remains uniformly distributed in a ring shape. Optionally, a covering is provided on the outer surfaces of the base 11 and the tube body 12 so that light is only transmitted to the illumination end 103 within the base 11 and the tube body 12. Light emitted by the illumination end 103 passes through the wall of human tissue (e.g., the vaginal wall), forming a visual mark (e.g., a light spot) on the wall to indicate the location of the surgical instrument. This visual mark provides a visual aid for other surgical instruments inserted into the abdominal cavity. For example, this visual mark can be observed through a hysteroscope, thereby enabling simple and rapid positioning of the target surgical area, such as the incision site.

[0056] Figure 16 shows another embodiment of the present application. Compared to the embodiment shown in Figures 1 to 13, the vaginal cannula 1 in this embodiment has the same structure, differing in that the illumination end 103 in this embodiment includes an annular light emitting member 1030. Light from the incident end 101 is guided to the annular light emitting member 1030 via the light guide 102, where it is formed into a uniformly distributed annular light beam. An annular light beam is suitable in certain application scenarios. For example, if the vaginal cannula 1 does not need to be rotated during a hysterectomy procedure, an annular light beam may be more suitable.

[0057] With reference to Figures 17 and 18 , a laparoscopic surgical system 100 is provided, comprising: a vaginal cannula 1, an endoscope 2, and a robotic arm 3. The robotic arm 3 is connected to the endoscope 2 and is configured to adjust the direction of the endoscope 2's field of view. The robotic arm 3 is capable of at least adjusting the direction of the endoscope 2's field of view to align with the area indicated by the visual marker formed by the lighting module 10 of the vaginal cannula 1. In the laparoscopic surgical system 100 provided in an embodiment of the present application, when the vaginal cannula 1 is inserted into the patient's body, for example, into the uterus 4, the surgeon can adjust the direction of the endoscope 2's field of view A1 by manipulating the robotic arm 3 so that the field of view A1 aligns with the area A2 indicated by the visual marker formed by the lighting module 10 of the vaginal cannula 1. Specifically, during the surgical procedure, the surgeon or surgical assistant manipulates the vaginal cannula 1 (e.g., tilts or rotates the vaginal cannula 1) to affect the position of the uterus. The endoscope 2, mounted on the robotic arm 3, uses the visual marker formed by the light emitted by the lighting module 10 as a reference, so that the endoscope 2's field of view automatically tracks the vaginal cannula 1. In this way, the target area of ​​the operation can be located simply and quickly, which reduces the difficulty of the operation and improves the safety of the operation.

[0058] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0059] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A vaginal cannula (1), comprising a lighting module (10), characterized in that: The lighting module (10) comprises: Incident end (101); a light guiding portion (102), one end of which is connected to the incident end (101); and an illumination end (103), which is connected to the other end of the light guide (102) and is disposed at the proximal end (120) of the vaginal cannula (1), Wherein, the light from the incident end (101) is guided to the illumination end (103) via the light guiding portion (102), and is emitted through the illumination end (103).

2. The vaginal cannula (1) according to claim 1, characterized in that: The lighting module (10) further comprises a light-emitting portion (104), wherein the light-emitting portion (104) is arranged at the incident end (101).

3. The vaginal cannula (1) according to claim 2, characterized in that: The vaginal cannula (1) further comprises a power supply unit (105), wherein the power supply unit (105) is electrically connected to the light emitting unit (104) to supply energy to the light emitting unit (104).

4. The vaginal cannula (1) according to claim 1, characterized in that: The incident end (101) is connected to an external light source.

5. The vaginal cannula (1) according to claim 1, characterized in that The vaginal cannula (1) further comprises a fixing portion (106), wherein the fixing portion (106) is arranged at the lighting end (103), and the fixing portion (106) is configured to fix the lighting module (10) to the inner wall of the vaginal cannula (1).

6. The vaginal cannula (1) according to any one of claims 1 to 5, characterized in that The incident end (101) is arranged at the distal end (110) of the vaginal cannula (1), and the light guide portion (102) comprises a base (11) and a tube body (12) of the vaginal cannula (1).

7. The vaginal cannula (1) according to claim 1, characterized in that The lighting end (103) comprises a ring-shaped light emitting element (1030).

8. The vaginal cannula (1) according to claim 1, characterized in that Also includes: A base (11) provided with a first through hole (111); A tube body (12) sleeved with the base (11), the tube body (12) being provided with a second through hole (121); The first through hole (111) is communicated with the second through hole (121) and together define a third through hole (13), and the lighting module (10) is arranged in the third through hole (13).

9. The vaginal cannula (1) according to claim 8, characterized in that The base (11) is provided with a first groove (112), the first groove (112) extending along the axial direction of the first through hole (111), the tube body (12) is provided with a second groove (122), the second groove (122) extending along the axial direction of the second through hole (121), the first groove (112) and the second groove (122) are arranged to be aligned with each other and communicated with each other, so as to jointly define a receiving groove (14), and the lighting module (10) is received in the receiving groove (14).

10. The vaginal cannula (1) according to claim 9, characterized in that The base (11) comprises a first part (113) and a second part (114) connected to each other, the first through hole (111) passes through the first part (113) and the second part (114), the outer diameter of the second part (114) is slightly smaller than the inner diameter of the second through hole (121), the second part (114) is sleeved in the second through hole (121) of the tube body (12), and the first groove (112) is at least arranged in the second part (114).

11. The vaginal cannula (1) according to claim 10, characterized in that The power supply unit (105) is disposed on the first portion (113), and the light emitting unit (104) is electrically connected to the power supply unit (105) through the first groove (112).

12. The vaginal cannula (1) according to claim 8, characterized in that The fixing portion (106) is made of elastic material and is provided with an arc-shaped structure; the fixing portion (106) is pressed against the inner wall of the third through hole (13) by a rebound force, so as to fix the lighting module (10) in the third through hole (13).

13. The vaginal cannula (1) according to claim 12, characterized in that The fixing portion (106) is provided with a connecting hole (1061), and the lighting end (103) of the lighting module (10) is inserted into the connecting hole (1061) via a first end (1062) of the connecting hole (1061), so as to connect the lighting module (10) to the fixing portion (106).

14. The vaginal cannula (1) according to claim 13, characterized in that A second end (1063) of the connection hole (1061) opposite to the first end (1062) is provided with a light-through hole (1064) to allow the light emitted from the lighting end (103) to pass through.

15. A laparoscopic surgery system (100), characterized in that: include: The vaginal cannula (1) according to any one of claims 1 to 14; Endoscope (2); and a robotic arm (3) connected to the endoscope (2), the robotic arm (3) being configured to adjust the field of view direction of the endoscope (2), The robotic arm (3) is configured to adjust the field of view of the endoscope (2) to be aligned with an area indicated by a visual mark formed by the lighting module (10) of the vaginal cannula (1).

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