A flexible laparoscope

Abstract

The present invention relates to the technical field of medical equipment, and specifically to a flexible laparoscope. The flexible laparoscope comprises a laparoscope rod, a signal connector is provided at the rear end of the laparoscope rod, a flexible joint adjustment handle is provided at the end of the laparoscope rod, a flexible bendable joint is provided at the front end of the laparoscope rod, a signal lens is provided at the front end of the flexible bendable joint, a threaded screw-in groove is provided inside the flexible bendable joint, and an adjustment rod is provided in cooperation. A main kinematic pair is provided in the flexible bendable joint, one end of the main kinematic pair is hinged to the signal lens, and the other end is hinged to the adjustment rod. A centering layer is also provided in the laparoscope rod, and the adjustment rod passes through the axis of the centering layer. A signal line through hole and a slave kinematic pair are provided on the centering layer, and the slave kinematic pair is hinged to the main kinematic pair. A camera and an argon light are provided inside the front end of the signal lens. The present invention can reduce the implanted operating instruments during single-hole compound laparoscopic surgery, and greatly increase the degree of freedom of surgical instruments.

Description

Technical Field

[0001] The invention relates to the technical field of medical equipment, in particular to a flexible laparoscope. Background Art

[0002] A compound laparoscope is a medical device with a miniature camera. Compound laparoscopic surgery using a compound laparoscope and related instruments is a non-invasive surgery commonly used in clinical practice. The advantages of compound laparoscopic surgery are less trauma, faster patient recovery, and less disturbance to the body's internal environment. In addition, the patient recovers quickly and there are no obvious incisions on the abdominal wall, which is a strong psychological advantage for the patient.

[0003] However, the current image acquisition of compound laparoscopes relies on a hard mirror inserted into the abdominal cavity through an incision made on the abdominal wall. The first defect is that an assistant is always required to support the mirror during the operation, and it needs to be manually adjusted according to the situation of the surgical field, which requires close cooperation between the assistant and the surgeon; the second defect is that if a single-port compound laparoscopic surgery is performed, the surgical operating instruments and the compound laparoscope enter the abdominal cavity at the same time through the same incision in the abdominal wall. Due to limited space, the compound laparoscope and the surgical instruments interfere with each other, affecting the progress of the operation and increasing the difficulty of the operation. Summary of the invention

[0004] The object of the present invention is to provide a flexible laparoscope to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A flexible laparoscope.

[0007] Furthermore, the flexible laparoscope includes a laparoscope rod, a signal connector is provided at the rear end of the laparoscope rod, a flexible joint adjustment handle is provided at the end of the laparoscope rod, a flexible bendable joint is provided at the front end of the laparoscope rod, and a signal lens is provided at the front end of the flexible bendable joint.

[0008] Furthermore, a threaded screw-in groove is provided in the flexible joint adjustment handle, and an adjustment rod is provided in the threaded screw-in groove.

[0009] Furthermore, a main kinematic pair is provided in the flexible bendable joint, one end of the main kinematic pair is hinged to the signal lens, and the other end of the main kinematic pair is hinged to the adjustment rod. A centering layer is also provided in the laparoscope rod, and the adjustment rod passes through the axis of the centering layer. A signal line through hole is provided on the centering layer. A slave kinematic pair is also provided on the centering layer, and the slave kinematic pair is hinged to the main kinematic pair.

[0010] Furthermore, a camera is provided inside the front end of the signal lens, and argon lamps are provided on both sides of the camera.

[0011] Furthermore, a flexible laparoscope, when used, comprises the following steps:

[0012] 1. Set up a laparoscopic incision during abdominal surgery;

[0013] 2. Use a flexible laparoscope, provide light source through an argon lamp, collect image signals inside the abdominal cavity through a camera, exchange light source signals and image signals with external devices through a signal connector, and adjust the bending of the flexible bendable joint through a flexible joint adjustment handle to adjust the viewing angle of the light source and image.

[0014] Furthermore, a flexible laparoscope can also be implemented through two abdominal incisions and a separate laparoscope.

[0015] Furthermore, a flexible laparoscope, a system implemented through two abdominal incisions and a separation laparoscope includes a detachable lens, and the detachable lens includes a lithium battery, a wireless signal transmission module and a camera.

[0016] Further, a flexible laparoscope, through two abdominal incisions and separation laparoscope implementation scheme includes the following steps:

[0017] 1. Two incisions are set on the abdominal cavity, the laparoscope rod and the lens are separated, the flexible bendable joint is removed, and the separated lens is transported into the abdominal cavity through an incision through a magnetic suction structure provided inside the laparoscope rod. At the same time, an argon lamp is provided at the top of the laparoscope rod to provide light source;

[0018] 2. Use the operating clip to operate the detachable lens through another incision to adjust the image angle.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. This design can reduce one surgical incision, and the viewing angle and light source angle can be adjusted by adjusting the handle, which is convenient and simple to operate; depending on the situation, this design also provides a separate lens, which is implemented in the form of two incisions. In this case, the viewing angle is wider and the operation is more flexible;

[0021] Second, under this design, a special channel required for the original laparoscope can be removed, and the laparoscope under this design can enter the abdominal cavity from other operation hole cannulas. Therefore, in addition to the surgical operation instruments, such as separation forceps, electrocoagulation hooks, etc., the operation holes on the surgical incision under this design can also be used to enter and exit the laparoscopic devices of this design. Specifically, general puncture empty cannulas have diameters of 5mm, 10mm and 12mm. We can use 12mm. After inserting the device of this design, there can still be a 10mm diameter left to facilitate the entry and exit of other surgical instruments; or other diameter puncture cannulas can be designed and equipped, provided that there is space for other instruments to enter and exit after the laparoscope is inserted. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a cross-sectional view of the overall structure of the present invention;

[0024] Figure 3 It is a schematic diagram of the adjustment structure of the flexible bendable joint in the present invention;

[0025] Figure 4 It is a schematic diagram of an implementation method of the present invention;

[0026] Figure 5 It is a schematic diagram of a second embodiment of the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of the separate lens in the present invention.

[0028] In the figure: 1. Flexible laparoscope; 10. Laparoscope rod; 11. Signal connector; 12. Flexible bendable joint; 121. Adjustment rod; 122. Main kinematic pair; 123. Slave kinematic pair; 124. Signal line via; 125. Centering layer; 13. Signal lens; 131. Argon light; 132. Camera; 14. Flexible joint adjustment handle; 2. Operating clamp; 3. Separate lens; 31. Lithium battery; 32. Wireless signal transmission module. DETAILED DESCRIPTION

[0029] 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.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0032] Example 1

[0033] See also Figure 1-4 , the present invention provides a technical solution:

[0034] A flexible laparoscope.

[0035] The flexible laparoscope 1 comprises a laparoscope rod 10, a signal connector 11 is provided at the rear end of the laparoscope rod 10, a flexible joint adjustment handle 14 is provided at the end of the laparoscope rod 10, a flexible bendable joint 12 is provided at the front end of the laparoscope rod 10, and a signal lens 13 is provided at the front end of the flexible bendable joint 12.

[0036] A threaded screw-in groove 141 is provided in the flexible joint adjustment handle 14 , and an adjustment rod 121 is provided in the threaded screw-in groove 141 . The flexible joint adjustment handle 14 can adjust the extension and retraction of the adjustment rod 121 by screwing the threaded screw-in groove 141 .

[0037] A main kinematic pair 122 is provided in the flexible bendable joint 12, one end of the main kinematic pair 122 is hinged to the signal lens 13, and the other end of the main kinematic pair 122 is hinged to the adjustment rod 121. A centering layer 125 is also provided in the laparoscope rod 10, and the adjustment rod 121 passes through the axis of the centering layer 125, which is used to position the adjustment rod 121 so that it is not affected by the force and produces deflection. A signal line through hole 124 is provided on the centering layer 125, and a slave kinematic pair 123 is also provided on the centering layer 125, and the slave kinematic pair 123 is hinged to the main kinematic pair 122.

[0038] Furthermore, a camera 132 is provided inside the front end of the signal lens 13 , and argon lamps 131 are provided on both sides of the camera 132 .

[0039] Specifically, a flexible laparoscope comprises the following steps when used:

[0040] 1. Set up a laparoscopic incision during abdominal surgery;

[0041] 2. Use the flexible laparoscope 1, provide light source through the argon lamp 131, collect image signals inside the abdominal cavity through the camera 132, exchange light source signals and image signals with external devices through the signal connector 11, and adjust the bending of the flexible bendable joint 12 through the flexible joint adjustment handle 14 to adjust the viewing angle of the light source and the image.

[0042] It is worth noting that in this solution, the position of the camera 132 in the abdominal cavity is relatively fixed. In order to ensure the adjustment of the lens's viewing angle and field of view, a zoom lens must be used. The light source emission angle of the argon lamp 131 is based on not causing the zoom lens to render light.

[0043] Example 2

[0044] See also Figure 5-6 ,This design provides a method that can be implemented through two abdominal incisions and separate laparoscopy.

[0045] See also Figure 6 A flexible laparoscope, a system implemented through two abdominal incisions and a separation laparoscope includes a detachable lens 3, and the detachable lens 3 includes a lithium battery 31, a wireless signal transmission module 32 and a camera 132.

[0046] For further information, see Figure 5 , a flexible laparoscope, through two abdominal incisions and separation laparoscope implementation scheme includes the following steps:

[0047] 1. Two incisions are set on the abdominal cavity, the laparoscope rod 10 and the lens are separated, the flexible bendable joint 12 is removed, and the detachable lens 3 is transported to the abdominal cavity through an incision through a magnetic suction structure provided inside the laparoscope rod 10, and an argon lamp 131 is provided at the top of the laparoscope rod 10 to provide light source;

[0048] Second, the image angle is adjusted by operating the split lens 3 using the operating clip 2 through another incision.

[0049] It is worth noting that although this implementation scheme does not reduce the number of incisions, the viewing angle and light source angle have a wider adjustable range and are more flexible to operate. Therefore, the camera can select a fixed-focus lens. Under the same technology, the image quality is higher than that of a zoom lens, which facilitates the operation.

[0050] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A flexible laparoscope, characterized in that: The flexible laparoscope (1) comprises a laparoscope rod (10), a signal connector (11) is provided at the rear end of the laparoscope rod (10), a flexible joint adjustment handle (14) is provided at the end of the laparoscope rod (10), a flexible bendable joint (12) is provided at the front end of the laparoscope rod (10), a signal lens (13) is provided at the front end of the flexible bendable joint (12), a threaded screw-in groove (141) is provided in the flexible joint adjustment handle (14), an adjustment rod (121) is provided in the threaded screw-in groove (141), a main kinematic pair (122) is provided in the flexible bendable joint (12), and the main kinematic pair (13) is provided in the flexible joint (13). 22) one end is hinged to the signal lens (13), the other end of the main motion pair (122) is hinged to the adjustment rod (121), a centering layer (125) is also provided inside the laparoscope rod (10), the adjustment rod (121) passes through the axis of the centering layer (125), a signal line through hole (124) is provided on the centering layer (125), a slave motion pair (123) is also provided on the centering layer (125), the slave motion pair (123) is hinged to the main motion pair (122), a camera (132) is provided inside the front end of the signal lens (13), and argon lamps (131) are provided on both sides of the camera (132).

Images