Patent Publication Number: US-11660120-B2

Title: Visualized surgical assembly and corresponding endoscope thereof

Description:
CROSS REFERENCE OF RELATED APPLICATIONS 
     The present application claims the priority of the Chinese invention patent application which application number is 201910043178.7 on Jan. 17, 2019, and the content is incorporated into this application by reference. 
     FIELD OF THE INVENTION 
     The invention relates to the medical device field, and further relates to the visual medical device field, in particular to a visualized surgical assembly and corresponding endoscope for abortion. 
     BACKGROUND 
     In the clinical operation of visual abortion, it is necessary to use a visual endoscope to observe, locate and aspirate early embryos. In the early abortion operation, due to the difficulty of visualization, it is basically a metal tube with a channel connected to a suction device at the back end to suck out the surface mucosa of the uterine body in the uterine cavity to achieve the suspension of the embryo and the continued conception. Due to the inability to accurately locate the embryo in the uterine cavity, a total suction operation of the inner surface of the uterine cavity is generally performed, but the damage to the non-embryonic mucosal layer cannot be controlled in this way. With the continuous development of technology, embryo positioning under B-ultrasound visits has gradually appeared, which makes the visual operation of positioning and aspirating embryos more advanced than the aborted operation under blind vision. In the later stage, ultra-fine optical fibers appeared, which directly positioned the embryos and performed direct aspiration operations. Recently, the use of photoelectric conversion devices with sensors has made great progress in visualization and more accurate embryo positioning. The above-mentioned methods have achieved a certain degree of visual abortion of abortion, with a certain degree of accurate positioning of embryos and complete abortion success rate. 
     Under normal circumstances, the drainage tube used in embryo abortion can be made of metal or plastic. The metal pipe fittings can be sterilized and used repeatedly. At present, plastic products with cameras are widely used, which can only be used for one time, which basically meets the requirement of sucking out the embryo after observing the position of the embryo at close range. The operation method is to suck out the embryo in the form of negative pressure to achieve the purpose of suspending the conception. 
     In clinical medicine, in order to avoid possible medical disputes or other potential pathological conditions, it is necessary to observe the cavity after the abortion operation, including the confirmation of the mucosal layer and the confirmation of the deep body layer, and pass after the operation Using the combination of a fluid perfusion device and a visual flow endoscope, the negative pressure method is changed to the working principle of the uterine dilation type, and the result of the operation is confirmed by observation and observation after the operation, which can protect the patient to the greatest extent. Unnecessary excessive surgery, or discovery of other pathological conditions, inform patients, suggest treatment plans, etc., so as to avoid medical disputes. 
     Since the existing visual flow endoscope can only meet the requirements of using a drainage tube to suck and remove the embryo after observing the positioning of the embryo, such products have no special requirements for the high resolution of the visual image sensor and the distance of light. However, as medical staff need to observe the internal appearance of the cavity after the operation, after the implementation of the suspension, the ability to infuse the fluid to promote the uterine cavity to expand and leave space to observe the internal condition of the cavity requires high brightness and high brightness. The new visual flow endoscope product with high resolution meets the new clinical needs of medical staff, so the technical invention content of this product fully meets the new clinical applications. 
     SUMMARY OF THE INVENTION 
     The object of the present invention is to overcome the drawbacks of the prior arts, to provide a combined visualized surgical assembly with simple operation, accurate positioning, low damage and reduction of medical disputes. 
     In order to achieve the above purpose, the visualized surgical assembly according to the present invention is as follows: 
     A visualized surgical assembly comprising a disposable drainage tube and a functional tube for providing visualization function, the disposable drainage tube and the functional tube are connected detachable along the axial of the tube body, and the functional tube is provided with a self-destructive part for cutting the disposable drainage tube. 
     Preferably, the tube body of the disposable drainage tube and the tube body of the functional tube are detachably connected through a sliding chute-slider combination. 
     Preferably, the sliding chute-slider combination comprising a sliding chute with an opening arranged along the axial direction of the tube body and a slider matched with the sliding chute, the sliding chute is arranged in one of the disposable drainage tube or functional tube, the slider is arranged on another of the disposable drainage tube or the functional tube, and the coordination of the sliding chute and the slider makes the disposable drainage tube slidable relative to the functional tube along the axial direction of the tube body. 
     Preferably, the sliding chute comprising a first sliding chute, and the sliding comprising a first slider matched with the first sliding chute, and the first sliding chute has the opening containment cavity which extending outward from the tube body, the first slider is arranged to protrude outwards from the tube body and is accommodated in the containment cavity through the opening. 
     Preferably, the sliding chute comprising a second sliding chute, the sliding comprising a second sliding matched with the second sliding chute, and the concave tube wall of the tube body where the second sliding chute is located forms the second sliding chute, and the convex tube wall of the tube body where the second slider is located forms the second sliding block. 
     Preferably, the functional tube comprising a first end and a second end, the first end of the functional tube is provided with a visualization head, and the visualization head includes a transparent mask, a photoelectric conversion module in the transparent mask and a light source in the transparent mask, the tube body of the function tube is provided with an lighting fiber connected with the light source and a cable connected with the photoelectric conversion module, the second end of the function tube is provided with a first handle, and the first handle is provided with a first interface for accessing the lighting fiber and a second interface for connecting the cable. 
     Preferably, the visualization head is provided with the self-destructive part, and the self-destructive part comprising a positioning pin arranged along the axial direction of the functional tube and a cutting piece arranged on the positioning pin, which is used to locate the end of the disposable drainage tube and cut the disposable drainage tube. 
     Preferably, the disposable drainage tube comprising a third end and a fourth end, the third end of the disposable drainage tube is correspondingly arranged with the first end of the functional tube, and the fourth end of the disposable drainage tube is arranged correspondingly with the second end of the functional tube, the fourth end of the disposable drainage tube is provided with a second handle matched with the first handle, and the second handle comprising a liquid outlet and a third interface for attracting the suction accessories. 
     Preferably, the suction accessory comprising a perfusion valve body, one end of the perfusion valve body is connected with a connecting tube for inserting into the disposable drainage tube, and a fastener connected with the third interface, and another end of the perfusion valve body is connected with a suction port with a check-valve, and a liquid inlet is arranged on the side of the perfusion valve body. 
     Preferably, the first handle is provided with a locating ring for trapping the second handle, and the second handle is provided with a groove for matching with the locating ring. 
     Preferably, the visualization head comprising an area with the maximum transverse diameter corresponding to the maximum diameter of the combined tube body of the disposable drainage tube and the functional tube, and the end surface of the third end of the disposable drainage tube is a curved end face, the visualization head is provided with a matching surface matched with the curved end face, and the third end of the disposable drainage tube is provided with a side opening. 
     The invention also provides an endoscope, wherein the corresponding endoscope comprising a visualized surgical assembly according to the visualized surgical assembly. 
     The visualized surgical assembly of the present invention is a combination structure of the disposable drainage tube and the functional tube which can provide visualization function. The disposable drainage tube is detachably connected with the functional tube, and the functional tube can be repeated disinfection, which can reduce the cost and avoid the risk of cross infection. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG.  1    shows an overall structure diagram of the visualized surgical assembly according to the present invention. 
         FIG.  2    shows a cross-sectional view of the disposable drainage tube and the functional tube in the visualized surgical assembly according to the present invention. 
         FIG.  3    shows the structural diagram of the functional tube in the visualized surgical assembly according to the present invention. 
         FIG.  4    shows the structural diagram of the visualization head of the functional tube in the visualized surgical assembly according to the present invention. 
         FIG.  5    shows a top diagram of the visualization head of the functional tube in the visualized surgical assembly according to the present invention. 
         FIG.  6    shows the structural diagram of disposable drainage tube in the visualized surgical assembly according to the present invention. 
         FIG.  7    shows the combined schematic diagram of disposable drainage tube and functional tube in the visualized surgical assembly according to the present invention. 
         FIG.  8    shows the structural diagram of the suction accessories in the visualized surgical assembly according to the present invention. 
     
    
    
     REFERENCE NUMBERS IN FIGURES 
     
         
         
           
               1  disposable drainage tube 
               2  functional tube 
               3  self-destructive part 
               4  first sliding chute 
               5  first slider 
               6  containment cavity 
               7  opening 
               8  second sliding chute 
               9  second slider 
               10  visualization head 
               11  transparent mask 
               12  photoelectric conversion module 
               13  light source 
               14  lighting fiber 
               15  cable 
               16  first handle 
               17  first interface 
               18  second interface 
               19  positioning pin 
               20  cutting piece 
               21  second handle 
               22  liquid outlet 
               23  third interface 
               24  perfusion valve body 
               25  connecting tube 
               26  fastener 
               27  check-valve 
               28  suction port 
               29  liquid inlet 
               30  locating ring 
               31  groove 
               32  curved end face 
               33  matching surface 
               34  side opening 
           
         
       
    
     DETAILED DESCRIPTION 
     In order to be able to understand the technical content of the present invention more clearly, the following embodiments are specifically described. 
     As shown in  FIGS.  1  to  8   , an embodiment of a visualized surgical assembly provided for the present invention includes a disposable drainage tube  1  and a functional tube  2  for providing visualization function. The disposable drainage tube and the functional tube are detachably connected along the axial direction of the tube body. The functional tube is provided with a self-destructive part  3  for cutting the disposable drainage tube. 
     The assembly provided by the invention is preferably used for abortion surgery. All parts need to be disinfected before use. The functional tube can use steel structure, which can be reused after repeated disinfection. The disposable drainage tube is a disposable consumable part, which can be used only after being sterilized by high pressure in advance and meeting the requirements of medical specifications, The disposable drainage tube can be cut off when the disposable drainage tube is separated from the functional tube by setting the self-destructive part, so as to prevent the disposable drainage tube from being used again due to negligence. 
     In the visualized surgical assembly provided by the present invention, the tube body of the disposable drainage tube and the tube body of the functional tube are detachably connected through a sliding chute-slider combination, and the sliding chute-slider combination comprises a sliding chute with an opening arranged along the axial direction of the tube body and a slider matched with the sliding chute. The sliding chute is arranged in one of the disposable drainage tube or functional tube, and the slider is arranged in the other one of the disposable drainage tubes or functional tubes. The coordination of the sliding chute and the slider enables the disposable drainage tube to slide relative to the functional tube along the axial direction of the tube body. 
     As shown in  FIG.  2   , the invention provides a specific embodiment with a sliding chute-slider combination, wherein the disposable drainage tube and the functional tube include two groups of sliding chute-slider combinations for positioning. The first group of sliding chute-slider combination is the first chute  4  and the first slider  5 . The first chute  4  is matched with the first slider  5  in size and contour lamp, the first chute has a containment cavity  6  extending outwards from the tube body to form an opening, and the first slider is arranged to protrude outwards from the tube body and is accommodated in the containment cavity through the opening  7 . 
     As shown in  FIG.  2   , the second group of sliding chute-slider combination includes a second chute  8  and a second slider  9 , the concave tube wall of the functional tube forms the second sliding chute, and the convex tube wall of the disposable drainage tube forms the second slider, wherein the cross section of the disposable drainage tube is in the shape of a micro ellipse, and the cross section of the functional tube comprises two arcs, wherein the inner arc forms the second sliding chute, guiding the disposable drainage tube into the correct chute. 
     As shown in  FIG.  3 - 5   , in a visualized surgical assembly provided by the present invention, the functional tube comprises a first end and a second end. The first end of the functional tube is provided with a visualization head  10 . The visualization head includes a transparent mask  11 , an photoelectric conversion module  12  in the transparent mask and a light source  13  in the transparent mask, the tube body of the function tube is provided with an lighting fiber  14  connected with the light source and a cable  15  connected with the photoelectric conversion module (as shown in  FIG.  2   ). The second end of the function tube is provided with a first handle  16 , and the first handle is provided with a first interface  17  for connecting the lighting fiber and a second interface  18  for connecting the cable. 
     Among them, the first interface  17  is the connection port used to lead in the light source. Through the lighting fiber built in the function tube, the required light source is transmitted in the visualization head. The first interface is a fast interface, which is convenient for connection and removal, and convenient for disinfection of the function tube. 
     Among them, the second interface  18  is a quick connector for cable connection. By connecting the cable, the photoelectric signal received by the photoelectric sensor of the visualization head can be accurately displayed through the cable after electronic processing. As for the image of the front end, the second interface is set as a fast interface to facilitate connection and removal, which is convenient for disinfection of functional tubes. 
     As shown in  FIG.  5   , the function tube provided by the invention comprises a dual lighting system, namely, two groups of short-range lighting sources and a group of long-distance lighting sources. The photoelectric conversion module generally includes a photoelectric conversion sensor (CMOS) with an imaging objective in the front end. 
     As shown in  FIG.  3 - 4   , in a visualized surgical assembly provided by the invention, the visualization head is provided with the self-destructive part, and the self-destructive part includes a positioning pin  19  arranged along the axial direction of the functional tube and a cutting piece  20  arranged on the positioning pin, which are used to locate the end of the disposable drainage tube and cut the disposable drainage tube. In the process of pulling out the disposable drainage tube, the wall surface of the disposable drainage tube can be cut through by the force of the positioning pin with the reverse inclined mouth (cutting piece), so as to achieve the self-destruction function and avoid the risk of mutual infection caused by the repeated use of the disposable drainage tube. 
     As shown in  FIG.  6   , in a visualized surgical assembly provided by the present invention, the disposable drainage tube includes a third end and a fourth end, the third end of the disposable drainage tube is correspondingly arranged with the first end of the functional tube, and the fourth end of the disposable drainage tube is arranged correspondingly with the second end of the functional tube, The fourth end of the disposable drainage tube is provided with a second handle  21  matched with the first handle. The second handle comprises a liquid outlet  22  and a third interface  23  for connecting with the suction accessories. Among them, the third interface  23  is a fast interface in the shape of a pagoda shaped as a triangle, which is convenient for quick connection and removal in the process of use. 
     As shown in  FIG.  8   , in a visualized surgical assembly provided by the present invention, the suction accessory comprises a perfusion valve body  24 , one end of the perfusion valve body is connected with a connecting tube  25  for inserting into the disposable drainage tube, and a fastener  26  connected with the third interface is arranged, and the other end of the perfusion valve body is connected with the suction port  28  of the check valve  27 , The side surface of the perfusion valve body is provided with a liquid inlet  29 , and the head of the connecting tube  25  is also provided with a connecting fixed head. The fastener  26  can use speed nuts, etc. 
     As shown in  FIG.  1   , in order to install the suction accessories, disposable drainage tubes and functional tubes, the suction accessories are fixed on the disposable drainage tubes through the fasteners  26  and the third interface  23 , and the disposable drainage tubes and functional tubes are detachably connected through the sliding chute slider combination, the locating ring groove assembly, the arc end face fitting surface and the self-destructive parts. The assembly has the functions of visualization, attraction and illumination. 
     As shown in  FIG.  3 ,  6 - 7   , in a visualized surgical assembly provided by the present invention, the first handle is provided with a locating ring  30  for covering the second handle, and the second handle is provided with a groove  31  for matching with the locating ring. The locating ring is used to guide and locate the combination of disposable drainage tube and functional tube. After the disposable drainage tube reaches the top and coincides with the head position of the functional tube, the fixed groove of the disposable drainage tube just fits with the locating ring guide piece of the functional tube. 
     In addition, as shown in  FIG.  6   , the surface of the second handle is also provided with a dent which is convenient for holding. 
     As shown in  FIGS.  4 ,  6 - 7   , in the visualized surgical assembly provided by the invention, the visualization head has an area with the maximum transverse diameter corresponding to the maximum diameter of the combined tube body of the disposable drainage tube and the functional tube, and the end surface of the third end of the disposable drainage tube is a curved end face  32 . The visualization head is provided with a matching surface  33  matched with the curved end face, and the third end of the disposable drainage tube is provided with a side opening  34 , wherein the side opening is preferably arranged as an oval side opening, which is used for sucking out the embryo without tissue need. 
     The invention also provides an endoscope, wherein the endoscope comprises the visualized operation assembly. Preferably, the endoscope is a rigid visible abortion mirror. Among them, the disposable drainage tube is combined with the functional tube to connect the functional tube with the display screen, and the video image of the photoelectric signal received by the sensor can be observed, which an extended endoscope is. 
     The visualized surgical assembly of the present invention is a combination structure of the disposable drainage tube and the functional tube which can provide visualization function. 
     The disposable drainage tube is detachably connected with the functional tube, and the functional tube can be repeated disinfection, which can reduce the cost and avoid the risk of cross infection. 
     The invention is worthy of a very clever combination of design concepts, the possible risks from the design to achieve prevention. Through the expansion method, it has replaced some functions of hysteroscopy, reduced the possibility of medical disputes, and brought a new way of reform for new medical minimally invasive surgery, which is a very forward-looking innovative design, and will be used in a wide range of medical units at different levels. 
     The visual surgery assembly provided by the invention is an ideal product with simple operation, small trauma, accurate positioning, low damage degree, fast healing and reducing medical disputes. 
     In this specification, the present invention has been described with reference to its specific embodiments. However, it is clear that various modifications and changes can still be made without departing from the spirit and scope of the present invention. Therefore, the description and drawings should be regarded as illustrative rather than restrictive.