A laparoscopic surgical access device

By designing an abdominal surgical puncture device with a miniature camera and a rotating pusher, stable insertion of the puncture needle in hepatobiliary surgery was achieved, solving the problem of excessively deep puncture and ensuring the safety and accuracy of the surgery.

CN120284418BActive Publication Date: 2026-05-15CHANGZHOU WUJIN PEOPLES HOSPITAL (CHANGZHOU EIGHTH PEOPLES HOSPITAL)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHANGZHOU WUJIN PEOPLES HOSPITAL (CHANGZHOU EIGHTH PEOPLES HOSPITAL)
Filing Date
2025-04-27
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

During laparoscopic puncture surgery in hepatobiliary surgery, it is difficult to precisely control the puncture force, which may lead to excessively deep punctures and complications such as tissue damage, bleeding, and liver damage.

Method used

An abdominal surgical puncture device was designed, including a cannula assembly and a puncture assembly. A miniature camera is used to monitor the position of the puncture needle in real time, and the stable insertion of the puncture needle is controlled by rotating the pusher and the synchronization component. Combined with the push-in and retraction of the cannula, precise puncture is achieved.

Benefits of technology

By employing a stable puncture technique, tissue damage and bleeding caused by excessively deep punctures are avoided, ensuring the safety and stability of the procedure.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to the technical fields of abdominal operation puncture, in particular to a kind of abdominal operation puncture device, including sleeve assembly and puncture assembly, the sleeve assembly includes outer sleeve, air inlet shell and air inlet pipe, the air inlet shell is communicated with outer sleeve top end, one end of the air inlet pipe is communicated with air inlet shell;The puncture assembly includes puncture needle tube, miniature camera and puncture needle stable push-in assembly, the puncture needle tube is slidably penetrated through air inlet shell and outer sleeve, and the end of puncture needle tube far from outer sleeve is puncture end, the puncture needle tube is made of transparent material;When the present application is used, puncture assembly and sleeve assembly can be stably punctured respectively, can avoid the phenomenon that tissue damage, bleeding, liver injury and postoperative complication occur due to the resistance or too small during puncture, further guarantee subsequent operation stable.
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Description

Technical Field

[0001] This invention relates to the field of abdominal surgical puncture technology, specifically to an abdominal surgical puncture device. Background Technology

[0002] In hepatobiliary surgery, laparoscopic surgery is often combined with puncture techniques. For example, when a mass is found in the liver but its nature (such as benign or malignant) cannot be determined, a laparoscopic liver biopsy is performed under ultrasound or CT guidance to remove tissue for pathological examination in order to determine the nature of the mass and formulate a subsequent treatment plan.

[0003] In existing laparoscopic hepatobiliary surgery, the abdominal wall has multiple layers of tissue, each with varying resistance. The resistance changes during puncture are inconsistent; for example, there is initial resistance when the needle touches the abdominal wall, which decreases slightly as the needle penetrates the skin and subcutaneous tissue. However, the resistance increases again as the needle approaches the lining, making it difficult for surgeons to precisely control the force by touch. This often results in excessively deep punctures due to a sudden decrease in resistance, leading to tissue damage, bleeding, liver injury, and postoperative complications. Therefore, we propose a new laparoscopic puncture device. Summary of the Invention

[0004] The purpose of this invention is to provide an abdominal surgical puncture device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an abdominal surgical puncture device, comprising a cannula assembly and a puncture assembly, wherein the cannula assembly comprises an outer cannula, an air inlet shell and an air inlet tube, the air inlet shell being connected to the top end of the outer cannula, and one end of the air inlet tube being connected to the air inlet shell;

[0006] The puncture assembly includes a puncture needle tube, a miniature camera, and a puncture needle stabilizing and pushing assembly. The puncture needle tube slides through the air inlet shell and the outer tube, and the end of the puncture needle tube away from the outer tube is the puncture end. The puncture needle tube is made of transparent material and has a hollow cavity inside. The miniature camera is installed at the bottom of the hollow cavity. The puncture needle stabilizing and pushing assembly is installed at the top of the puncture needle tube and enables the puncture needle tube and the outer tube to be stably punctured into the abdominal cavity.

[0007] Furthermore, the puncture needle stabilizing push assembly includes a connecting sleeve, a sealing element, a snap-fit ​​block, a snap-fit ​​element, and a rotating push-in element. The bottom of the connecting sleeve is fixedly sleeved on the outside of the top of the puncture needle tube, and the bottom of the connecting sleeve is provided with a sealing groove. The sealing element is installed on the top of the air inlet shell, and the connecting sleeve is sealed to the air inlet shell through the sealing element.

[0008] Two snap-fit ​​blocks are provided, and both snap-fit ​​blocks are fixedly installed on the top of the air intake shell. The snap-fit ​​component is installed on the outside of the connecting sleeve. The snap-fit ​​block is provided with a snap-fit ​​interface, and the connecting sleeve is snapped into the snap-fit ​​interface through the snap-fit ​​component. The rotating push-in component is installed on the connecting sleeve, and the rotating push-in component is connected to the top of the puncture needle tube.

[0009] Furthermore, the sealing element includes an annular plate and a sealing gasket. The annular plate is fixedly installed on the top of the air intake housing, and the sealing gasket is installed on the annular plate. The sealing groove is sleeved on the outside of the sealing gasket and the annular plate. Through the provided sealing element, the connecting sleeve and the air intake housing are kept sealed.

[0010] Furthermore, the snap-fit ​​component includes a connecting shell, a connecting rod, a connecting plate, a connecting spring, and a locking block. The connecting shell is fixedly installed on the outer side of the bottom of the connecting sleeve, and the connecting rod slides through one side of the connecting shell. One end of the connecting rod located inside the connecting shell is fixedly connected to the connecting plate. The locking block is fixedly installed on one side of the bottom of the connecting plate, and the connecting shell has a moving opening corresponding to the position of the locking block. One end of the locking block passes through the moving opening and snaps into the snap-fit ​​interface.

[0011] The connecting springs are provided in multiple ways, and the two ends of the multiple connecting springs are respectively fixedly connected to the connecting sleeve and the connecting plate. Through the provided snap-fit, the connecting sleeve and the air intake shell can be detachably connected.

[0012] Furthermore, the rotating pusher includes a U-shaped plate, a guide, a buffer, a rotating block, a synchronizing element, a rotating rod, and a detection locking element. The U-shaped plate is fixedly installed on the top of the puncture needle tube. There are two guides, which are respectively arranged on both sides of the bottom of the U-shaped plate. The U-shaped plate is slidably connected to the connecting sleeve through the two U-shaped plates.

[0013] The buffer is disposed between the U-shaped plate and the connecting sleeve. The rotating rod passes through the bottom of the connecting sleeve and is rotatably connected to the connecting sleeve through a sealed bearing. The rotating block is fixedly installed at the bottom of the rotating rod, and the synchronizing element is disposed between the rotating block and the U-shaped plate. The detection locking element is installed at the top of the connecting sleeve and is used to detect the rotation speed of the rotating rod. The rotating pushing element allows the puncture needle to be slowly rotated and pushed in.

[0014] Furthermore, the guide component includes a guide block and a guide strip. The guide block is fixedly installed at the bottom of the U-shaped plate, and the guide strip is fixedly installed on the inner wall of the connecting sleeve. The guide block is provided with a guide groove, and the guide block is slidably connected to the guide strip through the guide groove. Through the provided guide component, the U-shaped plate is guided and limited.

[0015] Furthermore, the buffer component includes a fixed plate, a buffer spring, and a movable plate. One end of the fixed plate is fixedly connected to the inner wall of the connecting sleeve, and the buffer spring is fixedly installed at the bottom of the fixed plate. The bottom of the buffer spring is fixedly connected to the movable plate, and the movable plate is fixedly installed at the bottom of the U-shaped plate. Through the provided buffer component, the U-shaped plate is buffered when it moves up and down relative to the inside of the connecting sleeve.

[0016] Furthermore, the synchronizing element includes two spherical blocks, which are fixedly installed on the top of the U-shaped plate. The rotating block has two continuous V-shaped grooves, and the two spherical blocks slide through the V-shaped grooves respectively. Through the synchronizing element, the U-shaped plate is synchronously driven.

[0017] Furthermore, the detection locking component includes a partition shell, an electromagnet, a positioning component, a patch-type rotating shaft speed sensor, and a hand-operated plate. The partition shell is fixedly installed on the top of the connecting sleeve, and the partition shell is rotatably sleeved on the outside of the rotating rod. The electromagnet is ring-shaped, and the outer ring of the electromagnet is fixedly connected to the inner wall of the partition shell.

[0018] The positioning element is installed on the outside of the rotating rod, and the positioning element is electrically connected to the electromagnet when the electromagnet is energized.

[0019] The patch-type rotating shaft speed sensor is located on the outer side of the top of the partition shell, and the patch-type rotating shaft speed sensor is installed on the rotating rod. The hand-rotating plate is fixedly installed on the top of the rotating rod. Through the provided detection and locking device, the rotating rod can be locked when the rotation speed is high.

[0020] Furthermore, the hand-operated plate is provided with an arc-shaped opening, and a positioning ball is engaged at the arc-shaped opening. A support member for connecting the positioning ball is installed on the top of the partition shell. Through the provided arc-shaped opening and the positioning ball, the function of prompting after the rotating plate has rotated one revolution is realized.

[0021] The present invention has at least the following beneficial effects: When using the present invention, through the set puncture component and cannula component, during laparoscopic surgery, one hand holds the cannula component at the patient's puncture site, while the other hand steadily pushes the set puncture needle into the component, allowing the puncture needle to be slowly and steadily pushed into a section inside the puncture site. The position of the puncture needle is observed by a miniature camera. Then, the puncture needle retracts along the outer cannula. At this time, the outer cannula is pushed into the puncture site again, and then the next stage of puncture is performed. This operation method allows the puncture component and cannula component to be used stably for puncture, avoiding tissue damage, bleeding, liver damage, and postoperative complications caused by insufficient resistance during puncture, and further ensuring the stability of subsequent surgeries. Attached Figure Description

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

[0023] Figure 2 This is a side view of the overall structure of the present invention;

[0024] Figure 3 This is a cross-sectional view of the overall structure of the present invention;

[0025] Figure 4 For the present invention Figure 3 Enlarged structural diagram of region A in the middle;

[0026] Figure 5 This is a schematic diagram of the puncture needle structure of the present invention;

[0027] Figure 6 This is a schematic diagram of the connecting shell structure of the present invention;

[0028] Figure 7 For the present invention Figure 6 Enlarged structural diagram of region B in the middle;

[0029] Figure 8 This is a schematic diagram of the internal structure of the connecting sleeve of the present invention;

[0030] Figure 9 This is a schematic diagram of the synchronization component structure of the present invention;

[0031] Figure 10 This is a schematic diagram of the support structure of the present invention;

[0032] Figure 11 This is a schematic diagram of the positioning component structure of the present invention.

[0033] In the diagram: 1-Cannula assembly; 11-Outer sleeve; 12-Inlet shell; 13-Inlet pipe; 2-Puncture assembly; 21-Puncture needle tube; 22-Miniature camera; 3-Puncture needle stabilizing insertion assembly; 31-Connecting sleeve; 311-Sealing groove; 32-Seal; 321-Annular plate; 322-Sealing gasket; 33-Snap-fit ​​block; 331-Snap-fit ​​interface; 4-Snap-fit ​​component; 41-Connecting shell; 42-Connecting rod; 43-Connecting plate; 44-Connecting spring; 45-Locking block; 5-Rotating push-in component; 51-U-shaped plate; 52-Guide component; 521-Guide block; 522-Guide... 53-Relieving bar; 531-Fixed plate; 532-Relieving spring; 533-Moving plate; 54-Rotating block; 541-V-groove; 55-Synchronizing component; 551-Spherical block; 56-Rotating rod; 6-Detection locking component; 61-Separating shell; 62-Electromagnet; 63-Positioning component; 631-Positioning shell; 6311-Mounting port; 632-Plastic spring; 633-Iron block; 64-Patch type rotating shaft speed sensor; 65-Hand-operated plate; 651-Arc-shaped opening; 66-Positioning ball; 7-Support component; 71-Support sleeve; 72-Support spring; 73-Support rod. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1

[0035] Please see Figures 1 to 3 An abdominal surgical puncture device includes a cannula assembly 1 and a puncture assembly 2. The cannula assembly 1 includes an outer cannula 11, an air inlet shell 12 and an air inlet tube 13. The outer cannula 11 is made of transparent material. The air inlet shell 12 is connected to the top of the outer cannula 11. One end of the air inlet tube 13 is connected to the air inlet shell 12, and the other end of the air inlet tube 13 is detachably connected to an external air supply device.

[0036] The puncture assembly 2 includes a puncture needle tube 21, a miniature camera 22, and a puncture needle stabilizing and pushing assembly 3. The puncture needle tube 21 slides through the air inlet shell 12 and the outer tube 11, and the end of the puncture needle tube 21 away from the outer tube 11 is the puncture end. The puncture needle tube 21 is made of transparent material and has a hollow cavity inside. The miniature camera 22 is installed at the bottom of the hollow cavity. The puncture needle stabilizing and pushing assembly 3 is installed at the top of the puncture needle tube 21 and stabilizes the puncture needle tube 21 and the outer tube 11 into the abdominal cavity. The miniature camera 22 can display the captured image through a display device in a timely manner, thereby assisting the doctor in pushing the puncture needle tube 21 and the outer tube 11.

[0037] Please see Figures 3 to 10 The puncture needle stabilizing push assembly 3 includes a connecting sleeve 31, a sealing element 32, a snap-fit ​​block 33, a snap-fit ​​element 4, and a rotating push-in element 5. The bottom of the connecting sleeve 31 is fixedly sleeved on the outside of the top of the puncture needle tube 21, and the bottom of the connecting sleeve 31 is provided with a sealing groove 311. The sealing element 32 is installed on the top of the air inlet shell 12, and the connecting sleeve 31 is sealed to the air inlet shell 12 through the sealing element 32.

[0038] Two snap-fit ​​blocks 33 are provided, and both snap-fit ​​blocks 33 are fixedly installed on the top of the air intake shell 12. The snap-fit ​​component 4 is installed on the outside of the connecting sleeve 31. The snap-fit ​​block 33 is provided with a snap-fit ​​interface 331, and the connecting sleeve 31 is snapped with the snap-fit ​​component 4 at the snap-fit ​​interface 331. The rotating push-in component 5 is installed on the connecting sleeve 31, and the rotating push-in component 5 is connected to the top of the puncture needle tube 21.

[0039] The sealing element 32 includes an annular plate 321 and a sealing gasket 322. The annular plate 321 is fixedly installed on the top of the air intake housing 12, and the sealing gasket 322 is installed on the annular plate 321. The sealing groove 311 is sleeved on the sealing gasket 322 and the outer side of the annular plate 321.

[0040] The snap-fit ​​component 4 includes a connecting shell 41, a connecting rod 42, a connecting plate 43, a connecting spring 44, and a locking block 45. The connecting shell 41 is fixedly installed on the outer side of the bottom of the connecting sleeve 31, and the connecting rod 42 slides through one side of the connecting shell 41. One end of the connecting rod 42 located inside the connecting shell 41 is fixedly connected to the connecting plate 43. The locking block 45 is fixedly installed on one side of the bottom of the connecting plate 43, and the connecting shell 41 has a moving opening corresponding to the position of the locking block 45. One end of the locking block 45 passes through the moving opening and snaps into the snap-fit ​​interface 331. In this invention, the connecting shell 41 serves to support and guide the connecting rod 42, and at the same time serves to protect the connecting plate 43 and the connecting spring 44.

[0041] Multiple connecting springs 44 are provided, and the two ends of the multiple connecting springs 44 are respectively fixedly connected to the connecting sleeve 31 and the connecting plate 43;

[0042] Specific implementation process: When connecting the puncture needle tube 21 and the outer sleeve 11, first insert one end of the puncture needle tube 21 through the air inlet shell 12 and out through the outer sleeve 11. Then, the sealing groove 311 at the bottom of the connecting sleeve 31 is correspondingly locked onto the sealing gasket 322 and the outer side of the annular plate 321. The sealing gasket 322 is used to seal the connection between the connecting sleeve 31 and the air inlet shell 12. At the same time, press the two connecting rods 42 with two fingers until the positions of the two locking blocks 45 are aligned and moved to the locking interfaces 331 of the two locking blocks 33. Then release the two connecting rods 42. At this time, under the reverse elastic force of the connecting spring 44, the connecting plate 43 at one end of the connecting rod 42 causes the locking block 45 to move along the locking interface 331 until the locking block 45 is locked with the locking interface 331. At this time, the fixed connection between the connecting sleeve 31 and the air inlet shell 12 can be achieved.

[0043] Please see Figures 5 to 10 The rotating push-in component 5 includes a U-shaped plate 51, a guide component 52, a buffer component 53, a rotating block 54, a synchronizing component 55, a rotating rod 56, and a detection locking component 6. The U-shaped plate 51 is fixedly installed on the top of the puncture needle tube 21, and the opening of the U-shaped plate 51 is set upward. There are two guide components 52, which are respectively set on both sides of the bottom of the U-shaped plate 51, and the U-shaped plate 51 is slidably connected to the connecting sleeve 31 through the two U-shaped plates 51.

[0044] The buffer 53 is disposed between the U-shaped plate 51 and the connecting sleeve. The rotating rod 56 passes through the bottom of the connecting sleeve 31 and is rotatably connected to the connecting sleeve 31 through a sealed bearing. The rotating block 54 is fixedly installed at the bottom of the rotating rod 56, and the synchronizing element 55 is disposed between the rotating block 54 and the U-shaped plate 51. The detection locking element 6 is installed at the top of the connecting sleeve 31 and is used to detect the rotation speed of the rotating rod 56.

[0045] The guide component 52 includes a guide block 521 and a guide strip 522. The guide block 521 is fixedly installed at the bottom of the U-shaped plate 51, and the guide strip 522 is fixedly installed on the inner wall of the connecting sleeve 31. The guide block 521 is provided with a guide groove, and the guide block 521 is slidably connected to the guide strip 522 through the guide groove.

[0046] The buffer 53 includes a fixed plate 531, a buffer spring 532 and a movable plate 533. One end of the fixed plate 531 is fixedly connected to the inner wall of the connecting sleeve 31, and the buffer spring 532 is fixedly installed at the bottom of the fixed plate 531. The bottom of the buffer spring 532 is fixedly connected to the movable plate 533, and the movable plate 533 is fixedly installed at the bottom of the U-shaped plate 51.

[0047] The synchronizing element 55 includes two spherical blocks 551. In this embodiment, the rotating block 54 is cylindrical and has a hollow cavity inside, which reduces the weight of the rotating block 54 and ensures that the rotating rod 56 drives the rotating block 54 to rotate stably. The two spherical blocks 551 are fixedly installed on the top of the U-shaped plate 51. The rotating block 54 has two continuous V-shaped grooves 541, and the two spherical blocks 551 slide through the V-shaped grooves 541 respectively. The two continuous V-shaped grooves 541 serve to guide the two spherical blocks 551.

[0048] The detection locking component 6 includes a partition shell 61, an electromagnet 62, a positioning component 63, a patch-type rotating shaft speed sensor 64, and a hand-operated plate 65. The partition shell 61 is fixedly installed on the top of the connecting sleeve 31, and the partition shell 61 is rotatably sleeved on the outside of the rotating rod 56. The electromagnet 62 is ring-shaped, and the outer ring of the electromagnet 62 is fixedly connected to the inner wall of the partition shell 61.

[0049] The positioning element 63 is installed on the outside of the rotating rod 56, and the positioning element 63 is electrically connected to the electromagnet 62 when the electromagnet 62 is energized;

[0050] The patch-type shaft speed sensor 64 is located on the outer side of the top of the partition shell 61, and the patch-type shaft speed sensor 64 is mounted on the rotating rod 56, and the hand-operated plate 65 is fixedly mounted on the top of the rotating rod 56.

[0051] The positioning component 63 includes a positioning shell 631, a plastic spring 632, and an iron block 633. The positioning shell 631 is fixedly sleeved on the outside of the rotating rod 56, and the two ends of the positioning shell 631 are respectively provided with mounting holes 6311. Multiple plastic springs 632 are provided. One end of the multiple plastic springs 632 is fixedly installed inside the mounting hole 6311, and the other end of the multiple plastic springs 632 is fixedly connected to the iron block 633. The iron block 633 slides through the mounting hole 6311.

[0052] Specific implementation process: When performing laparoscopic puncture in hepatobiliary surgery, the puncture site is first disinfected. Then, the puncture needle 21 is attached to the outer cannula 11. At this time, one end of the outer cannula 11 is aligned with the puncture site, and one hand is used to fix the outer cannula 11 to the puncture site. The other hand rotates the hand-operated plate 65. As the hand-operated plate 65 rotates, the rotating rod 56 rotates. Simultaneously, the patch-type shaft speed sensor 64 on the rotating rod 56... While detecting the rotation speed of the rotating rod 56, the rotating rod 56 synchronously drives the rotating block 54 to rotate. When the rotating block 54 rotates, the two continuous V-shaped grooves 541 on its outer side rotate synchronously. At this time, the two spherical blocks 551 slide relative to the V-shaped grooves 541 due to the limiting effect of the U-shaped plate 51. Meanwhile, the U-shaped plate 51 moves along the interior away from the connecting sleeve 31 under the limiting effect of the two guide blocks 521 and the guide strip 522.

[0053] As the U-shaped plate 51 moves, it pushes one end of the puncture needle 21 to be inserted along the puncture position. After the rotating rod 56 rotates 180°, the puncture needle 21 moves along the inside of the outer tube 11 until the hand rotating plate 65 returns to its original position. Then, it pushes the outer tube 11 to be inserted along the already punctured position. Subsequently, the next length of puncture insertion is performed.

[0054] Furthermore, during the puncture process, when there are different levels of resistance in the internal abdominal wall tissues, such as when the doctor forcefully rotates the hand plate 65, causing one end of the puncture needle 21 to penetrate the skin and subcutaneous tissue, when the patch-type rotating shaft speed sensor 64 detects that the rotation speed of the rotating rod 56 exceeds the set value, the electromagnet 62 is energized. Then, the iron blocks 633 located on the positioning shell 631 outside the rotating rod 56 are attracted to the electromagnet 62 by the magnetic attraction force of the electromagnet 62, thus fixing the positioning shell 631 and locking the rotating rod 56. Subsequently, the electromagnet 62 is de-energized, the doctor adjusts the rotation force, and slowly rotates the rotating rod 56 again, so that the miniature camera 22 on the puncture needle 21 is slowly inserted into the required puncture position and then retracted. The doctor then inserts the needle into the puncture position through the outer tube 11.

[0055] Therefore, in this invention, the existing direct-press insertion puncture needle tube 21 is replaced with a rotating insertion puncture needle tube 21, which can effectively control the stability of the insertion of the puncture needle tube 21, and at the same time prevent the puncture needle tube 21 from being subjected to excessive force due to a sudden decrease in resistance, resulting in excessive puncture depth. Example 2

[0056] Please see Figures 10 to 11Example 2 is a further supplement to Example 1. Specifically, the hand-turning plate 65 is provided with an arc-shaped opening 651. In this example, the hand-turning plate 65 is stepped, that is, it is provided with two steps. The arc-shaped opening 651 is located at one step near the partition shell 61. A positioning ball 66 is engaged at the arc-shaped opening 651. A support member 7 for connecting the positioning ball 66 is installed on the top of the partition shell 61.

[0057] The support member 7 includes a support sleeve 71, a support spring 72, and a support rod 73. The support sleeve 71 is fixedly installed on the partition shell 61, and one end of the support spring 72 is fixedly installed inside the support sleeve 71. The other end of the support spring 72 is fixedly connected to the support rod 73. The support rod 73 slides through the support sleeve 71, and the other end of the support rod 73 is connected to the positioning ball 66.

[0058] When one end of the puncture needle 21 is inside the outer tube 11, the positioning ball 66 is locked at the arc-shaped opening 651 on the hand-rotating plate 65 due to the reverse elastic force of the support rod 73 and the support spring 72. Subsequently, when the hand-rotating plate 65 is rotated, the positioning ball 66 disengages from the arc-shaped opening 651. The puncture needle 21 extends to the farthest distance from the outer tube 11 after the hand-rotating plate 65 rotates 180°. As the hand-rotating plate 65 continues to rotate until it locks with the positioning ball 66 again at the arc-shaped opening 651, the doctor further inserts the outer tube 11 into the position where the puncture needle 21 has been punctured, under the illumination of the miniature camera 22.

[0059] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0060] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A laparoscopic surgical puncture device, comprising a cannula assembly (1) and a puncture assembly (2), characterized in that: The sleeve assembly (1) includes an outer sleeve (11), an air inlet shell (12) and an air inlet pipe (13). The air inlet shell (12) is connected to the top end of the outer sleeve (11), and one end of the air inlet pipe (13) is connected to the air inlet shell (12). The puncture assembly (2) includes a puncture needle tube (21), a miniature camera (22), and a puncture needle stabilizing push assembly (3). The puncture needle tube (21) slides through the air inlet shell (12) and the outer tube (11), and the end of the puncture needle tube (21) away from the outer tube (11) is the puncture end. The puncture needle tube (21) is made of transparent material, and the puncture needle tube (21) has a hollow cavity inside. The miniature camera (22) is installed at the bottom of the hollow cavity. The puncture needle stabilizing push assembly (3) is installed at the top of the puncture needle tube (21), and the puncture needle stabilizing push assembly (3) makes the puncture needle tube (21) and the outer tube (11) stably puncture into the abdominal cavity. The puncture needle stabilizing push assembly (3) includes a connecting sleeve (31), a sealing element (32), a snap-fit ​​block (33), a snap-fit ​​element (4), and a rotating push-in element (5). The bottom of the connecting sleeve (31) is fixedly sleeved on the outside of the top of the puncture needle tube (21), and the bottom of the connecting sleeve (31) is provided with a sealing groove (311). The sealing element (32) is installed on the top of the air inlet shell (12), and the connecting sleeve (31) is sealed to the air inlet shell (12) through the sealing element (32). Two snap-fit ​​blocks (33) are provided, and both snap-fit ​​blocks (33) are fixedly installed on the top of the air intake shell (12). The snap-fit ​​component (4) is installed on the outside of the connecting sleeve (31). The snap-fit ​​block (33) is provided with a snap-fit ​​interface (331), and the connecting sleeve (31) is snapped with the snap-fit ​​component (4) at the snap-fit ​​interface (331). The rotating push-in component (5) is installed on the connecting sleeve (31), and the rotating push-in component (5) is connected to the top of the puncture needle tube (21). The rotating push-in component (5) includes a U-shaped plate (51), a guide component (52), a buffer component (53), a rotating block (54), a synchronizing component (55), a rotating rod (56), and a detection locking component (6). The U-shaped plate (51) is fixedly installed on the top of the puncture needle tube (21). There are two guide components (52), which are respectively arranged on both sides of the bottom of the U-shaped plate (51). The U-shaped plate (51) is slidably connected to the connecting sleeve (31) through the two U-shaped plates (51). The buffer (53) is disposed between the U-shaped plate (51) and the connecting sleeve. The rotating rod (56) passes through the bottom of the connecting sleeve (31) and is rotatably connected to the connecting sleeve (31) through a sealed bearing. The rotating block (54) is fixedly installed at the bottom of the rotating rod (56) and the synchronizing element (55) is disposed between the rotating block (54) and the U-shaped plate (51). The detection locking element (6) is installed at the top of the connecting sleeve (31) and is used to detect the rotation speed of the rotating rod (56). The detection locking component (6) includes a partition shell (61), an electromagnet (62), a positioning component (63), a patch-type rotating shaft speed sensor (64), and a hand-operated plate (65). The partition shell (61) is fixedly installed on the top of the connecting sleeve (31), and the partition shell (61) is rotatably sleeved on the outside of the rotating rod (56). The electromagnet (62) is ring-shaped, and the outer ring of the electromagnet (62) is fixedly connected to the inner wall of the partition shell (61). The positioning element (63) is installed on the outside of the rotating rod (56), and the positioning element (63) is electrically connected to the electromagnet (62) when the electromagnet (62) is energized; The patch-type rotating shaft speed sensor (64) is located on the outer side of the top of the partition shell (61), and the patch-type rotating shaft speed sensor (64) is mounted on the rotating rod (56), and the hand rotating plate (65) is fixedly mounted on the top of the rotating rod (56); The synchronizing element (55) includes two spherical blocks (551), which are fixedly installed on the top of the U-shaped plate (51). The rotating block (54) has two continuous V-shaped grooves (541), and the two spherical blocks (551) slide through the V-shaped grooves (541) respectively.

2. The abdominal surgical puncture device according to claim 1, characterized in that: The sealing element (32) includes an annular plate (321) and a sealing gasket (322). The annular plate (321) is fixedly installed on the top of the air intake shell (12), and the sealing gasket (322) is installed on the annular plate (321). The sealing groove (311) is sleeved on the outside of the sealing gasket (322) and the annular plate (321).

3. The abdominal surgical puncture device according to claim 1, characterized in that: The snap-fit ​​component (4) includes a connecting shell (41), a connecting rod (42), a connecting plate (43), a connecting spring (44), and a locking block (45). The connecting shell (41) is fixedly installed on the outside of the bottom of the connecting sleeve (31), and the connecting rod (42) slides through one side of the connecting shell (41). One end of the connecting rod (42) inside the connecting shell (41) is fixedly connected to the connecting plate (43). The locking block (45) is fixedly installed on one side of the bottom of the connecting plate (43), and the connecting shell (41) has a moving opening corresponding to the position of the locking block (45). One end of the locking block (45) passes through the moving opening and snaps into the snap-fit ​​interface (331). Multiple connecting springs (44) are provided, and the two ends of the multiple connecting springs (44) are respectively fixedly connected to the connecting sleeve (31) and the connecting plate (43).

4. The abdominal surgical puncture device according to claim 1, characterized in that: The guide component (52) includes a guide block (521) and a guide strip (522). The guide block (521) is fixedly installed at the bottom of the U-shaped plate (51), and the guide strip (522) is fixedly installed on the inner wall of the connecting sleeve (31). The guide block (521) is provided with a guide groove, and the guide block (521) is slidably connected to the guide strip (522) through the guide groove.

5. The abdominal surgical puncture device according to claim 1, characterized in that: The buffer component (53) includes a fixed plate (531), a buffer spring (532) and a movable plate (533). One end of the fixed plate (531) is fixedly connected to the inner wall of the connecting sleeve (31), and the buffer spring (532) is fixedly installed at the bottom of the fixed plate (531). The bottom of the buffer spring (532) is fixedly connected to the movable plate (533), and the movable plate (533) is fixedly installed at the bottom of the U-shaped plate (51).

6. The abdominal surgical puncture device according to claim 1, characterized in that: The hand-turning plate (65) is provided with an arc-shaped opening (651), and a positioning ball (66) is engaged at the arc-shaped opening (651). A support member (7) for connecting the positioning ball (66) is installed on the top of the partition shell (61).