Single-hole puncture outfit
By designing a support and flattening mechanism and using springs and rubber plates for guidance, the problem of puncture instability caused by patient breathing is solved, achieving stable insertion of the puncture device into the patient's body and improving the stability of the surgical procedure.
Patent Information
- Application Number
- CN202422684278.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-05
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-11-05
AI Technical Summary
Existing single-port multi-cavity trocars are unstable during puncture due to the patient's body movements while breathing, affecting the stability of the surgical procedure.
The device employs a support mechanism, a flattening mechanism, and a puncture mechanism. A spring compresses the bottom frame to press against the patient's body, and a rubber plate and ball bearing guide ensure that the puncture device is inserted smoothly into the patient's body.
It improves the stability of puncture procedures, reduces the impact of the patient's body movements during breathing on the puncture, and ensures the smooth insertion of the puncture device into the patient's body.
Smart Images

Figure CN223529510U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of single-hole puncture device technology, specifically a single-hole puncture device. Background Technology
[0002] A trocar is a medical consumable, mainly used in conjunction with minimally invasive equipment to provide an instrument channel for minimally invasive abdominal and pelvic surgeries.
[0003] Application number CN202122728411.0 discloses a single-port multi-lumen trocar, including a mounting base and other structures. This single-port multi-lumen trocar involves placing a suction cup on the affected area, using an external negative pressure system to adhere the suction cup to the patient's body, pulling the plunger and rotating the sliding block into the limiting groove to insert the trocar into the patient's body, and rotating the plunger to reset it using a tension spring, thus preventing displacement during insertion and instability of the trocar after insertion. However, in actual use, it overlooks the fact that the patient's breathing causes upper body movement, which indirectly causes the trocar to move, resulting in instability during the puncture procedure. Utility Model Content
[0004] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.
[0005] Therefore, the technical solution adopted by this utility model is as follows:
[0006] A single-hole puncture device includes a support mechanism, a flattening mechanism, and a puncture mechanism. The support mechanism includes a horizontal plate, a rod sleeve connected to the bottom of the horizontal plate, a rod body inserted into the rod sleeve, a bolt fitted to the front side of the rod body and screwed to the rod sleeve, and a suction cup connected to the bottom end of the rod body. The flattening mechanism includes a top frame located at the top of the horizontal plate, a bottom frame located at the bottom of the horizontal plate, two connecting rods connecting the top frame and the bottom frame, and a spring movably sleeved at the bottom end of the connecting rods and connected to the top of the bottom frame. The connecting rods are vertical and slide through the horizontal plate. The puncture mechanism includes a puncture device body vertical and slides through the top frame and the bottom frame, and a thumb press plate connected to the top end of the puncture device body.
[0007] By adopting the above technical solution, the spring-compressed bottom frame moves downward, pressing the patient's body as tightly as possible, reducing the amplitude of body movement when the patient breathes. Then, using the hand gesture used when giving an injection, the index and middle fingers press the plate, and then the thumb presses down or lifts the trocar body. Guided by the plate and rubber plate, the trocar body smoothly enters the patient's body, improving the stability of the puncture operation.
[0008] In a preferred embodiment, the present invention can be further configured such that: an opening is provided on the horizontal plate, the opening is located between two connecting rods, and the puncture device body is vertical and slides through the opening.
[0009] In a preferred embodiment, the present invention can be further configured such that: a plate is interference-fitted onto the outer side of the puncture device body, and the plate is attached to the top of the top frame.
[0010] In a preferred embodiment, the present invention can be further configured such that the width of the plate is smaller than the width of the top frame, and the plate is made of a damping material.
[0011] In a preferred embodiment, the present invention can be further configured such that: a plurality of balls arranged in a matrix are movably embedded at the bottom of the plate, and a groove suitable for the sliding of the balls is provided at the top of the top frame.
[0012] In a preferred embodiment, the present invention can be further configured such that: a plurality of rubber plates are installed on the top of the plate body, and the plurality of rubber plates are equally spaced and fit in an annular interference fit to the outside of the puncture device body.
[0013] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:
[0014] 1. In this utility model, the spring-compressed bottom frame moves downward, pressing the patient's body as tightly as possible to reduce the amplitude of body movement during breathing. Then, using the hand gesture used when giving an injection, the index and middle fingers press the plate, and then the thumb presses down or lifts the puncture device body. Guided by the plate and rubber plate, the puncture device body smoothly enters the patient's body, improving the stability of the puncture operation.
[0015] 2. In this utility model, the horizontal plate is suspended above the patient's body. Then, the rod is lengthened or shortened according to the patient's body thickness, and then the rod is fixed with bolts. With the assistance of the suction cup, the horizontal plate is firmly suspended horizontally. This helps the bottom plate to press down horizontally and ensures that the bottom of the bottom plate is completely in contact with the patient's body, providing conditions for stabilizing the lesion site. Attached Figure Description
[0016] Figure 1 This is a perspective view of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the support mechanism of this utility model;
[0018] Figure 3 This is a schematic diagram of the flattening mechanism of this utility model;
[0019] Figure 4 This is a schematic diagram of the puncture mechanism of this utility model.
[0020] Figure label:
[0021] 100. Support mechanism; 110. Horizontal plate; 120. Rod sleeve; 130. Rod body; 140. Bolt; 150. Suction cup;
[0022] 200. Flattening mechanism; 210. Top frame; 220. Bottom frame; 230. Connecting rod; 240. Spring;
[0023] 300. Puncture mechanism; 310. Puncture device body; 320. Thumb press plate;
[0024] 400. Plate body;
[0025] 500, ball bearing;
[0026] 600. Rubber sheet. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.
[0028] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of this invention.
[0029] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a single-hole puncture device.
[0030] Example 1:
[0031] Combination Figure 1-4 As shown, the present invention provides a single-hole puncture device, including a support mechanism 100, a flattening mechanism 200 and a puncture mechanism 300. The support mechanism 100 includes a horizontal plate 110, a rod sleeve 120 connected to the bottom of the horizontal plate 110, a rod body 130 inserted into the rod sleeve 120, a bolt 140 attached to the front side of the rod body 130 and screwed to the rod sleeve 120, and a suction cup 150 connected to the bottom end of the rod body 130.
[0032] The flattening mechanism 200 includes a top frame 210 disposed at the top of the horizontal plate 110, a bottom frame 220 disposed at the bottom of the horizontal plate 110, two connecting rods 230 connected between the top frame 210 and the bottom frame 220, and a spring 240 movably sleeved on the bottom end of the connecting rods 230 and connected to the top of the bottom frame 220. The connecting rods 230 are vertical and slide through the horizontal plate 110.
[0033] The puncture mechanism 300 includes a puncture device body 310 that is vertical and slides through the top frame 210 and the bottom frame 220, and a thumb press plate 320 connected to the top of the puncture device body 310.
[0034] Furthermore, the horizontal plate 110 has an opening located between the two connecting rods 230. The puncture device body 310 is vertical and slides through the opening. The opening facilitates the lateral movement of the puncture device body 310, allowing the puncture device body 310 to be stably inserted into the patient's body from the lesion location.
[0035] Example 2:
[0036] Combination Figure 1 and Figure 3 As shown, based on Embodiment 1, a plate 400 is interference-fitted to the outside of the puncture device body 310. The plate 400 is attached to the top of the top frame 210. The plate 400 can limit the position of the puncture device body 310 and prevent the puncture device body 310 from falling down on its own.
[0037] Furthermore, the width of the plate 400 is smaller than the width of the top frame 210. The plate 400 is made of damping material. The plate 400 made of damping material can make the puncture device body 310 descend with a feeling of obstruction, which helps the puncture device body 310 descend smoothly.
[0038] Furthermore, multiple rubber plates 600 are installed on the top of the plate 400. The multiple rubber plates 600 are equally spaced and are annularly press-fitted against the outside of the puncture device body 310. The rubber plates 600 can increase the contact area between the plate 400 and the puncture device body 310, further guiding the puncture device body 310 and enabling the puncture device body 310 to descend stably.
[0039] Example 3:
[0040] Combination Figure 4 As shown in the above embodiment, the bottom of the plate 400 is movably embedded with a plurality of ball bearings 500 arranged in a matrix, and the top frame 210 has a groove on the top suitable for the ball bearings 500 to slide. The ball bearings 500 are provided to assist the plate 400 to move as smoothly as possible when the plate 400 moves laterally.
[0041] The working principle and usage process of this utility model are as follows: When this device is put into actual use, the horizontal plate 110 is suspended above the patient's body. Then, the rod 130 is lengthened or shortened according to the thickness of the patient's body. Then, the rod 130 is fixed with bolts 140. After that, with the assistance of suction cup 150, the horizontal plate 110 is firmly suspended in the air. Then, the bottom frame 220, which is compressed by spring 240, moves downward. The bottom frame 220 presses the patient's body as tightly as possible, reducing the amplitude of body rise and fall when the patient breathes. Then, using the hand gesture of injection, the index and middle fingers press the plate 400, and the thumb presses down or lifts the puncture device body 310. Under the guidance of the plate 400 and rubber plate 600, the puncture device body 310 smoothly enters the patient's body, improving the stability of the puncture operation.
[0042] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A single-port puncture device, characterized in that, include: The support mechanism (100) includes a horizontal plate (110), a rod sleeve (120) connected to the bottom of the horizontal plate (110), a rod body (130) inserted into the rod sleeve (120), a bolt (140) attached to the front side of the rod body (130) and screwed to the rod sleeve (120), and a suction cup (150) connected to the bottom end of the rod body (130). A flattening mechanism (200) includes a top frame (210) at the top of the horizontal plate (110), a bottom frame (220) at the bottom of the horizontal plate (110), two connecting rods (230) connecting the top frame (210) and the bottom frame (220), and a spring (240) movably sleeved on the bottom end of the connecting rods (230) and connected to the top of the bottom frame (220). The connecting rods (230) are vertical and slide through the horizontal plate (110). The puncture mechanism (300) includes a puncture body (310) that is vertical and slides through the top frame (210) and the bottom frame (220), and a thumb press plate (320) connected to the top of the puncture body (310).
2. The single-port puncture device according to claim 1, characterized in that, An opening is provided on the horizontal plate (110), which is located between two connecting rods (230), and the puncture device body (310) is vertical and slides through the opening.
3. The single-port puncture device according to claim 1, characterized in that, The puncture device body (310) is fitted with a plate (400) on the outside, and the plate (400) is attached to the top of the top frame (210).
4. A single-port puncture device according to claim 3, characterized in that, The width of the plate (400) is smaller than the width of the top frame (210), and the plate (400) is made of damping material.
5. A single-port puncture device according to claim 3, characterized in that, The bottom of the plate (400) is movably embedded with a plurality of balls (500) arranged in a matrix, and the top of the top frame (210) is provided with a groove suitable for the sliding of the balls (500).
6. A single-port puncture device according to claim 3, characterized in that, Multiple rubber plates (600) are installed on the top of the plate (400), and the multiple rubber plates (600) are equally spaced and fit together in a ring to the outside of the puncture device body (310).
Citation Information
Patent Citations
Single-hole multi-cavity puncture outfit
CN216754562U