A laparoscopic surgical assembly

Abstract

The application discloses a kind of endoscopic surgery components, comprising: the cylindrical snake bone connecting part suitable for being inserted into human body chamber, snake bone connecting part has the first camera being arranged at the distal end and the second camera being arranged in the middle part;Instrument part, including the operating instrument being arranged at the front end of instrument part and the connecting rod being connected with operating instrument, and can be slidably contained in the inner cavity of snake bone connecting part;Handle, the handle is connected to the proximal end of the snake bone connecting part and the connecting rod to operate the snake bone connecting part and the instrument part;Wherein the second camera has the retracted position being contained in snake bone connecting part, and the working position of laterally pushing out snake bone connecting part.

Description

Technical Field

[0001] This invention relates to the field of endoscopy, and more particularly to a laparoscopic surgical assembly. Background Technology

[0002] Traditional laparoscopic surgery requires creating multiple channels in the abdomen using a trocar to place the laparoscope and various surgical instruments, typically using 3-5 ports. Traditional endoscopes have only one lens, making it impossible to directly display distances, and rigid hysteroscopes rely on the field of view of the lens itself, preventing tilting and creating blind spots.

[0003] Chinese patent application CN113509222A discloses a laparoscopic surgical instrument with holographic imaging function. Multiple cameras can provide holographic effects. The cameras can be folded when entering and exiting, serving as both a surgical instrument and an endoscope. This reduces the number of openings required in the patient's abdomen and minimizes the harm to the patient.

[0004] However, the laparoscopic surgical instruments of this invention cannot be observed when entering and exiting the puncture channel, posing a certain risk. Furthermore, when performing treatment operations with the tip-end instruments, care must be taken to avoid camera interference with tissue, limiting their use in confined spaces and at specific angles. The instruments can rotate axially but cannot oscillate, requiring two-handed operation, which is neither intuitive nor convenient. The integrated design of the camera and instrument limits the types of instruments that can be used, or necessitates hospitals purchasing multiple camera-equipped instruments, increasing medical costs. Moreover, when the lens is folded, it inevitably pulls out lesion tissue; although sterilization measures are in place, there is still a higher risk of cross-infection compared to traditional instruments.

[0005] An improved laparoscopic surgical instrument is needed. Summary of the Invention

[0006] To address the shortcomings of existing technologies, according to the preferred embodiments of the present invention, on the one hand, it can reduce channel occupancy, allow for observation during entry and exit, and enable greater flexibility and observation range by tilting and adjusting the instrument angle; on the other hand, it can combine a variety of commonly used surgical instruments with a universal operating handle, and the handle and components can be disassembled for use and sterilization, and the components can be used as disposable instruments, thereby reducing medical costs and the risk of cross-infection.

[0007] This invention provides a laparoscopic surgical assembly, comprising: a cylindrical snake-bone connector adapted for insertion into a human cavity, the snake-bone connector having a first camera disposed at a distal end and a second camera disposed at a central portion; an instrument portion including a surgical instrument disposed at a front end of the instrument portion and a connecting rod connected to the surgical instrument, and slidably accommodated within the cavity of the snake-bone connector; a handle connected to the proximal end of the snake-bone connector and the connecting rod for operating the snake-bone connector and the instrument portion; wherein the second camera has a retracted position accommodated within the snake-bone connector and a working position laterally pushed out of the snake-bone connector.

[0008] Preferably, the instrument part is capable of being pushed distally out of the inner cavity of the snake bone connector relative to the snake bone connector, and pulled proximally into the inner cavity of the snake bone connector.

[0009] Preferably, when the instrument part leaves the inner cavity, the surgical instrument is deployed in a working state; when the instrument part enters the inner cavity, the surgical instrument is retracted in a conveying state.

[0010] Preferably, the snake bone connection includes snake head ends, a plurality of snake bones, and snake tail ends that are connected to each other from the distal end to the proximal end.

[0011] Preferably, the first camera is positioned at the far end of the snake's head.

[0012] Preferably, the second camera is located at one of the plurality of snake bones.

[0013] Preferably, the snake bone in which the second camera is mounted has a camera slot suitable for the second camera to pass through.

[0014] Preferably, the snake bone with the second camera includes a camera cutting surface; the camera cutting surface is a three-sided cut, which is suitable for being pushed outward, and has elasticity after being pushed up, and is suitable for returning to the initial position after the pushing force is removed.

[0015] Preferably, the connecting rod includes a cylindrical pull rod portion and an arc-shaped protrusion portion provided on the pull rod portion. When the connecting rod is pushed outward, the arc-shaped protrusion portion pushes the second camera outward.

[0016] Preferably, the second camera lifts up the camera cut surface to extend the snake bone connector laterally.

[0017] Preferably, when the connecting rod is pulled towards the proximal end, the arc-shaped boss portion moves away from the second camera, and the camera cutting surface springs back to push the second camera back into the snake-bone connecting part.

[0018] Preferably, the connecting rod is provided with a longitudinally extending guide groove suitable for accommodating the second camera, and the guide groove is located at the proximal end of the arc-shaped boss portion.

[0019] Preferably, each part of the snake bone connector is provided with adjacent concave arc grooves and protruding arc surfaces, and the snake bone segments are adapted to rotate relative to each other, so that the snake bone connector can swing at any angle within a certain range.

[0020] Preferably, the handle includes a rotatable firing lever and a handle lever connected at one end to the rotatable firing lever. The other end of the handle lever is connected to the connecting rod of the instrument part. When the rotatable firing lever rotates, it drives the handle lever to move back and forth, thereby driving the instrument part to move back and forth relative to the snake bone connecting part.

[0021] Preferably, the handle includes a universal joint and a universal joint cable, which allows the snake-bone connection to swing with the universal joint ball head when the universal joint rotates. Attached Figure Description

[0022] The invention will be more fully understood from the following detailed description taken in conjunction with the accompanying drawings, wherein similar elements are numbered in a similar manner, wherein:

[0023] Figure 1a A schematic diagram of the overall assembly structure of the laparoscopic surgical assembly according to the present invention is shown.

[0024] Figure 1b A partially exploded view of the laparoscopic surgical assembly according to the present invention is shown schematically.

[0025] Figure 2 An exemplary structure of the instrument section is shown;

[0026] Figure 3 An exemplary structure of the snake bone connector is shown;

[0027] Figure 4 The structure of the snake-bone connector in its assembled state is shown;

[0028] Figure 5 An exemplary structure of the snake's tail end is shown;

[0029] Figure 6 An exemplary structure of a snake bone is shown;

[0030] Figure 7 A schematic diagram showing the swing range of the snake bone connection is shown;

[0031] Figure 8 A schematic diagram showing the second camera being pushed out is shown;

[0032] Figure 9 A schematic diagram showing the fit between the instrument connection part and the snake bone connection part is shown;

[0033] Figure 10 An exploded view of the handle structure is shown;

[0034] Figure 11 A structural diagram showing the connection between the handle and the outer tube is shown;

[0035] Figure 12 A structural diagram of the handle lever is shown;

[0036] Figure 13 A schematic diagram showing the limit button restricting the firing lever to its extreme position is shown;

[0037] Figure 14 A schematic diagram of other structures of the surgical instrument is shown; and

[0038] Figure 15 and Figure 16 A schematic diagram of the snake bone connector and handle installation process is shown. Detailed Implementation

[0039] The technical solution of the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings, but the present invention is not limited to the following embodiments.

[0040] In this application, "proximal" usually refers to the side closest to the practitioner or the operating handle; while "distal" usually refers to the side furthest from the practitioner or the operating handle.

[0041] According to one embodiment of the present invention, a laparoscopic surgical assembly is provided, such as... Figure 1a and Figure 1b As shown. Figure 1a A schematic diagram of the overall assembly structure of the laparoscopic surgical assembly according to the present invention is shown. Figure 1b A partially exploded view of the laparoscopic surgical assembly according to the present invention is shown schematically.

[0042] like Figure 1a and 1b As shown, the laparoscopic surgical assembly according to an embodiment of the present invention mainly includes an instrument section 1, a snake-bone connector section 2, and a handle 3.

[0043] The instrument section 1 includes a surgical instrument disposed at the front end of the instrument section and a connecting rod connected to the surgical instrument, and is slidably accommodated in the inner cavity of the snake bone connecting section 2.

[0044] The instrument section 1 includes surgical instruments at its front end for performing procedures such as surgical operations within a body cavity. Depending on the type of surgical instruments at the front end of the instrument section 1, the instrument section 1 and the snake bone connector 2 can form different components. Surgical instruments include, but are not limited to, scissors, biopsy forceps, foreign body forceps, and serrated forceps.

[0045] According to one embodiment of the present invention, the instrument part 1 may include a clamp head 1-1 corresponding to the instrument part, a pull rod 1-3 corresponding to the connecting rod, a connecting rod 1-2 connecting the clamp head 1-1 to the pull rod 1-3, and a boss 1-4 provided at the proximal end of the pull rod 1-3 for connection and positioning.

[0046] In this embodiment, the connecting rod 1-2 includes two arms hinged to the distal end of the pull rod 1-3, suitable for operating the pliers head 1-1. When the pull rod 1-3 moves distally and extends out of the inner cavity of the snake-bone connector, it pushes the two arms of the connecting rod 1-2 to unfold, thereby causing the pliers head 1-1 to open.

[0047] The tie rod 1-3 is equipped with an arc-shaped boss 1-3-1 and a guide groove 1-3-2. The tie rod 1-3 is made of a semi-rigid material. Figure 2 As shown.

[0048] The snake-bone connector 2 is preferably cylindrical, suitable for insertion into the human cavity along the puncture channel. The snake-bone connector 2 has a first camera located at the distal end and a second camera located in the middle.

[0049] like Figure 3 As shown, in this embodiment, the snake-bone connector 2 may include a snake bone 2-1, a camera module 2-2, and a snake-bone cable 2-3. The snake-bone connector 2 may also include a spring 2-4.

[0050] The snake skeleton 2-1 may include a first snake skeleton 2-1-1, a second snake skeleton 2-1-2, a head end 2-1-3, and a tail end 2-1-4, wherein a groove is cut into the second snake skeleton for the second camera 2-2-2 to push out when it is opened. In other embodiments, the number of snake skeletons is not limited to this, and different numbers of snake skeletons can be set according to actual needs; the groove for the second camera 2-2-2 to push out when it is opened may also be set on other snake skeletons.

[0051] The camera module 2-2 may include a first camera 2-2-1, a second camera 2-2-2, and a connecting cable 2-2-3. The connecting cable 2-2-3 connects the first camera and the second camera for easy positioning. Figure 3 The connecting line 2-2-3 shown is an example; other forms of connection are also possible.

[0052] The snake-bone line 2-3 includes the snake-bone line welding point 2-3-1 and the snake-bone line boss 2-3-2.

[0053] Furthermore, the snake bone tail end 2-1-4 includes a connecting groove 2-1-4-1, a bayonet 2-1-4-2, a snake bone wire blind hole 2-1-4-3, a connecting wire through hole 2-1-4-4, and a snake bone head end riveting hole 2-1-3-1, see Figure 4 .

[0054] Spring 2-4 is placed inside the snake tail end 2-1-4 and is used to limit the snake line boss 2-3-2.

[0055] Figure 5 , Figure 6 A schematic diagram of the assembly of the various parts of the snake-bone connector 2 is shown.

[0056] One end 2-3-1 of the snake bone wire 2-3 is welded to the head end 2-1-3 of the snake bone, and the other end, the snake bone wire boss 2-3-2, abuts against the spring 2-4 in the connecting groove 2-1-4-1. The middle part of the snake bone wire 2-3 passes through the positioning features on each snake bone, such as positioning holes, and can be fixed by welding or other means to assemble the various parts of the snake bone connecting part 2.

[0057] The second snake bone 2-1-2 includes an inwardly concave arc groove surface 2-1-2-1, an outwardly protruding arc surface 2-1-2-3, and a camera cutting surface 2-1-2-2. The camera cutting surface 2-1-2-2 is, for example, cut on three sides, forming a membrane that can be lifted. The snake bone material is elastic, therefore the camera cutting surface 2-1-2-2 has a certain degree of resilience after being lifted, and will return to its initial position after the lifting force is removed.

[0058] Specifically, a U-shaped mark is cut into a complete arc surface on the second snake bone 2-1-2, leaving one side uncut. This cutting method allows the cut surface of the snake bone to deform and open when the camera is pushed out, allowing the camera to appear outside the snake bone. At the same time, since one side is not cut, and due to the presence of stress, when the camera is no longer subjected to the pushing force, the cut part of the snake bone will return to its initial position under the action of the rebound force, pressing the camera back into the snake bone tube, restoring it to the position before it was pushed out.

[0059] The first snake bone structure 2-1-1 is identical to the second snake bone structure 2-1-2 except for the absence of the camera cut surface 2-1-2-2. (See...) Figure 6 .

[0060] The head and tail ends of the snake bones, along with the adjacent parts of each snake bone, can also form corresponding concave and convex arc surfaces.

[0061] The concave and convex arc surfaces of adjacent snake bones, head ends, and tail ends in the snake bone connector 2 mate, allowing the snake bone segments to rotate relative to each other. This enables the entire snake bone connector 2 to swing at any angle within a certain range. (See...) Figure 7 .

[0062] In the assembled state, the connecting wire 2-2-3 passes through the connecting wire through-hole 2-1-4-4 and through the snake tail end 2-1-4, so that the second camera 2-2-2 is placed at the corresponding position on the camera cut surface 2-1-2-2, see Figure 8 Once assembled, the connecting line 2-2-3 can be fixed relative to the snake bone tail end 2-1-4, so that the position of the camera in the snake bone connecting part 2 is relatively fixed.

[0063] When lever 1-3 moves forward, the arc-shaped boss 1-3-1 pushes the second camera 2-2-2 outward, and at the same time, the camera cut surface 2-1-2-2 is also pushed up by the second camera 2-2-2, causing the second camera 2-2-2 to extend out of the snake-bone connector. When lever 1-3 moves backward, the arc-shaped boss 1-3-1 no longer supports the second camera 2-2-2, and the second camera 2-2-2 returns to the inside of the snake-bone connector under the force of the camera cut surface 2-1-2-2.

[0064] The arc-shaped boss 1-3-1 has an arc-shaped surface to smoothly push the second camera 2-2-2 out. The height of the arc-shaped boss 1-3-1 protruding from the pull rod 1-3 is appropriately set so that the second camera 2-2-2 can push out of the inner cavity of the snake bone connector 2 to an appropriate height to form an appropriate viewing angle.

[0065] The pull rod 1-3 has a guide groove 1-3-2, such as Figure 2 As shown. The guide groove 1-3-2 can, for example, be formed by sidewalls provided along both sides of the arc-shaped boss 1-3-1, so that the second camera 2-2-2 always moves within the guide groove 1-3-2 regardless of whether the lever 1-3 moves forward or backward. Figure 9 As shown. The second camera 2-2-2 always moves within the guide groove 1-3-2, ensuring that the circumferential position of the second camera 2-2-2 is basically fixed, thus allowing it to be smoothly pushed out from the camera cutting surface 2-1-2-2. The arc-shaped boss 1-3-1 is located in the middle of the guide groove 1-3-2.

[0066] like Figure 10 As shown, the handle 3 mainly includes the following parts:

[0067] The components include: handle connecting tube 3-1, handle lever 3-2, spring 3-3, universal joint pull rope 3-4, universal joint 3-5, connecting rod 3-6, limit button 3-7, firing lever 3-8, handle right shell 3-9, handle left shell 3-10, data connection cable 3-11, tubing 3-12, Luer assembly 3-13, data cable socket 3-14, and external data cable plug 3-15.

[0068] Handle connection to outer tube 3-1 Figure 11As shown, part 3-1-8 is used to house the handle lever 3-2 and the protrusion 1-4 of the connected instrument section. The handle connecting outer tube 3-1 includes a positioning groove 3-1-1, openings 3-1-3 and 3-1-2 connecting to cavities 3-1-4 and 3-1-5 respectively. Cavities 3-1-4 and 3-1-5 are connected to pipes 3-12 for introducing / expelling external gas or liquid. The through hole 3-1-6 is used to install the universal joint pull rope 3-4, and the spring 3-3 is also installed at the front end 3-1-6 for limiting the universal joint pull rope 3-4. The data cable through hole 3-1-7 is used for the data cable to pass through, and the bayonet 3-1-9 is used to engage with bayonet 2-1-4-2.

[0069] After the universal joint cable 3-4 is assembled with the snake-bone connector 2, it pulls the snake-bone boss 2-3-2. The universal joint and the universal joint cable are fixedly connected, and the fixing method includes, but is not limited to, glue connection, plastic welding and covering. The universal joint is fixed to the handle, which can be integrally molded or fastened with screws. The snake-bone connector 2 is mounted and fixed to the handle after rotating through the bayonet 2-1-4-2.

[0070] The handle lever 3-2 structure is as follows Figure 12 As shown.

[0071] The handle lever 3-2 includes a positioning boss 3-2-1, which is positioned in conjunction with a positioning groove 3-1-1. A groove 3-2-3 is used to avoid the insertion of the instrument part, and an arc-shaped groove 3-2-2 is used to connect the rotated boss 1-4. An opening 3-2-4 is used to connect the connecting rod 3-6.

[0072] The handle lever 3-2 also includes a connecting rod structure 3-6. When the firing lever 3-8 is rotated, the handle lever 3-2 moves back and forth, thereby driving the lever 1-3 to move back and forth via the boss 1-4, thus controlling the opening and closing of the surgical instrument at the front of the instrument section. The limit button 3-7 is used to limit the extreme positions of the firing lever 3-8, such as... Figure 13 As shown.

[0073] Surgical instruments, besides being scissors, also include various structures such as serrated pliers, etc. Figure 14 As shown. Figure 14 This is a schematic diagram of serrated forceps, used to grasp polyps for biopsies or to remove foreign objects. Its structure is similar to scissors, both using a four-bar linkage to create relative movement through levers 1-3, resulting in an engaging motion. This engaging motion produces a shearing effect on scissors and a gripping effect on serrated forceps.

[0074] Figure 15 and Figure 16 Describe the rotational installation process of the snake bone connector and the instrument handle.

[0075] Assemble the required instrument components (instrument part and snake joint connector) and handle together. Specifically, first connect data cable 2-2-3 to data connection cable 3-11, insert universal joint cable 3-4 into connecting slot 2-1-4-1, align bayonets 2-1-4-2 and 3-1-9, and rotate to engage to complete assembly. The snake joint cable boss 2-3-2 and universal joint cable 3-4 are connected via the boss after rotational installation.

[0076] The opening and closing of the surgical instruments can be controlled by firing handles 3-8.

[0077] In actual use, after assembly, first test whether the connection between the handle and the surgical instrument is normal. Repeatedly fire the handle to observe the opening and closing of the surgical instrument head. After confirming that the connection is normal, place the surgical instrument in the closed state through the patient channel to the lesion and slowly fire the handle. At this time, the second camera rises. Press the limit button 3-7 to limit the firing lever 3-8. After the firing lever moves back to the limit, it is restricted from moving backward. At this time, the second camera will not descend due to the retraction of the firing lever. Rotate the universal joint 3-5 with your thumb. Pulling the universal joint rope can control the snake bone connection part to swing in any direction within a certain angle with the universal ball head, thus intuitively and conveniently controlling the angle of the instrument and the camera.

[0078] After completing the surgical instrument operation, reverse the position of limit buttons 3-7. The firing lever 3-8 can then be retracted to allow camera 2 to descend back into the cavity of the snake bone connection. After retracting the surgical instrument and camera 2, withdraw the instrument. If necessary, the instrument components can be replaced before re-entering the lesion area for surgery, or the surgery can be terminated directly.

[0079] The laparoscopic surgical assembly according to the present invention has the following advantages.

[0080] 1. The dual-camera design facilitates distance judgment by doctors; and the second camera activates after entering the patient's body, eliminating the need to increase the channel size when entering and exiting. The first camera can observe the entry and exit process, enhancing safety and reducing risks. The different positions of the first and second cameras allow for multi-screen observation of the patient's internal condition: the morphology of the lesion, the shape of the instrument, and the relationship between the lesion and the instrument. The second camera is positioned at a specific angle (e.g., 30-60 degrees) with the instrument's cutting edge, allowing observation of the cutting process.

[0081] 2. The combination of the snake bone connector and the universal handle allows for more intuitive operation of the instrument angle without the need for two hands, increasing the convenience of operation for doctors.

[0082] 3. The handle connecting tube has external access channels, including but not limited to ventilation and smoke extraction for laparoscopy and fluid circulation for hysteroscopy. Since the instrument no longer occupies a separate laparoscopic channel, it has a larger fluid circulation tube diameter and a greater flow rate for the same size.

[0083] 4. The instrument components and handles are separate structures, which improves the selectivity of components. Multiple instruments are no longer needed for the same surgery, reducing surgical costs. In addition, the instrument components and handles can be sterilized separately, with sterilization efficiency and effect superior to integrated instruments.

[0084] 5. The device components can be used as disposable devices, reducing medical costs and the risk of cross-infection.

[0085] The embodiments of the present invention are not limited to those described above. Without departing from the spirit and scope of the present invention, those skilled in the art can make various changes and improvements to the present invention in form and detail, and these are all considered to fall within the protection scope of the present invention.

Claims

1. A laparoscopic surgical assembly, comprising: A cylindrical snake bone connector suitable for insertion into a human cavity, the snake bone connector having a first camera at the far end and a second camera at the middle; The instrument section includes a surgical instrument located at the front end of the instrument section and a connecting rod connected to the surgical instrument, and is slidably accommodated in the cavity of the snake bone connecting part; A handle, which is connected to the snake bone connector and the proximal end of the connecting rod to operate the snake bone connector and the instrument part; The second camera has a retracted position housed within the snake-bone connector and a working position that pushes the snake-bone connector out laterally.

2. The laparoscopic surgical assembly according to claim 1, wherein the instrument unit is capable of being pushed distally away from the cavity of the snake joint relative to the snake joint and pulled proximally into the cavity of the snake joint.

3. The laparoscopic surgical assembly according to claim 2, wherein when the instrument part leaves the inner cavity, the surgical instrument is deployed in a working state; and when the instrument part enters the inner cavity, the surgical instrument is retracted in a transport state.

4. The laparoscopic surgical assembly according to any one of claims 1-3, wherein the snake bone connector comprises a snake head end, a plurality of snake bones, and a snake tail end connected to each other from distal to proximal.

5. The laparoscopic surgical assembly according to claim 4, wherein the first camera is disposed at the distal end of the snake head.

6. The laparoscopic surgery assembly of claim 4, wherein the second camera is disposed at one of the plurality of snake bones.

7. The laparoscopic surgery assembly of claim 6, wherein the snake bone with the second camera has a camera slot adapted for the passage of the second camera.

8. The laparoscopic surgery assembly according to claim 7, wherein the snake bone with the second camera includes a camera cutting surface; the camera cutting surface is a three-sided cut, suitable for being pushed outward, having elasticity after being pushed up, and suitable for returning to the initial position after the pushing force is removed.

9. The laparoscopic surgery assembly according to claim 7 or 8, wherein the connecting rod includes a cylindrical pull rod portion and an arcuate boss portion provided on the pull rod portion, and when the connecting rod is pushed to the distal end, the arcuate boss portion pushes the second camera outward.

10. The laparoscopic surgical assembly of claim 9, wherein the second camera lifts the camera cutting surface to extend laterally out of the snake bone connector.

11. The laparoscopic surgery assembly according to claim 10, wherein when the connecting rod is pulled proximally, the arcuate boss portion moves away from the second camera, and the camera cutting surface springs back to push the second camera back into the snake-bone connection portion.

12. The laparoscopic surgical assembly according to claim 10 or 11, wherein the connecting rod is provided with a longitudinally extending guide groove adapted to accommodate a second camera, the guide groove being located at the proximal end of the arcuate boss portion.

13. In the laparoscopic surgical assembly according to claim 4, each part of the snake bone connector is provided with adjacent concave arc groove surfaces and protruding arc surfaces to cooperate, and the snake bone segments are adapted to rotate relative to each other, so that the snake bone connector can swing at any angle within a certain range.

14. The laparoscopic surgical assembly according to claim 13, wherein the handle includes a rotatable firing lever and a handle lever connected at one end to the rotatable firing lever, the other end of the handle lever being connected to the connecting rod of the instrument section, wherein when the rotatable firing lever rotates, it drives the handle lever to move back and forth, thereby driving the instrument section to move back and forth relative to the snake bone connecting part.

15. The laparoscopic surgical assembly according to claim 13, wherein the handle includes a universal joint and a universal joint cable, and when the universal joint rotates, the universal joint cable can control the sway of the snake joint connection with the universal joint ball head.

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