一种肠胃外科手术用扩张机构
By designing an expansion tube and a balloon expansion mechanism, the gastrointestinal surgical expansion mechanism solves the problems of fixed-point expansion and damage, provides flexible operating space and safety, and improves surgical efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QIANJIANG CENT HOSPITAL
- Filing Date
- 2025-02-25
- Publication Date
- 2026-07-17
AI Technical Summary
Existing gastrointestinal surgical dilation devices are difficult to achieve targeted dilation and are prone to causing damage during dilation. Traditional auxiliary equipment has limited functionality, which affects surgical efficiency.
An expansion mechanism comprising an expansion front tube and an expansion rear tube is designed. The front end of the front tube is provided with a front balloon insertion component. Fixed-point expansion is achieved through the balloon expansion mechanism. The front flexible balloon and the balloon expansion mechanism provide operating space, avoid expansion damage, and the size of the expansion cavity can be freely adjusted.
It enables non-invasive access and targeted dilation, avoids dilation damage, provides flexible operating space, and improves the safety and efficiency of surgery.
Smart Images
Figure CN224505481U_ABST
Abstract
Claims
1. A dilating mechanism for gastrointestinal surgery, comprising a pre-dilating tube body (1) and a post-dilating tube body (2), characterized in that, The front end of the pre-expansion tube (1) is provided with a pre-balloon insertion assembly (3), and a balloon expansion mechanism (4) is provided between the pre-expansion tube (1) and the post-expansion tube (2). The end of the post-expansion tube (2) away from the balloon expansion mechanism (4) is provided with a connecting tube cap (5). The connecting tube cap (5) is provided with a front airway (51) that communicates with the pre-balloon insertion assembly (3) and a rear airway (52) that communicates with the balloon expansion mechanism (4).
2. The dilation mechanism according to claim 1, wherein The anterior balloon insertion assembly (3) includes an anterior flexible balloon (31) disposed at one end of the anterior tube (1) away from the balloon expansion mechanism (4). The anterior tube (1) is provided with an air channel (32), and the air channel (32) is connected to the anterior airway (51) through a plug-in connection mechanism (6) disposed between the anterior tube (1) and the posterior tube (2).
3. The dilation mechanism according to claim 2, wherein, The plug-in connection mechanism (6) includes a plug-in connection groove (61) provided at one end of the expansion tube (1), and a plug-in connection part (62) provided on the expansion tube (2) corresponding to the plug-in connection groove (61). The plug-in connection groove (61) and the plug-in connection part (62) are provided with air guide holes (63) corresponding to each other.
4. The dilation mechanism according to claim 3, wherein The balloon dilation mechanism (4) includes dilation seats (41) arranged symmetrically on the top and bottom. Dilation airbags (42) are provided circumferentially between the dilation seats (41). An inner airbag (43) is provided on the inner side of the dilation airbag (42) circumferentially. A plurality of arc-shaped support compression pads (44) are provided between the inner airbag (43) and the dilation airbag (42) circumferentially.
5. The dilation mechanism according to claim 4, wherein, The expansion seat (41) has locking slots (45) on both sides, and one end of the expansion airbag (42) is positioned in the locking slot (45).
6. The dilation mechanism according to claim 5, wherein The expansion front tube (1) and the expansion rear tube (2) are provided with a strip-shaped lifting groove (46) on one end face that allows the expansion seat (41) to slide.
7. The dilation mechanism according to claim 4, wherein The connecting tube cover (5) includes an inner cover (53), and the inner cover (53) is provided with a positioning tube (54) inserted into the inner side of the expanded tube (2) in the circumferential direction. The inner cover (53) closes the positioning tube (54), and the positioning tube (54) is connected to one end face of the expanded tube (2).
8. The dilation mechanism according to claim 7, wherein, The rear airway (52) is located on the positioning tube (54) and communicates with the inner airbag (43), while the front airway (51) is located on the outer ring cover (55) of the positioning tube (54).
9. The dilation mechanism according to claim 6, wherein, The expansion tube (1) has a sliding limiting part (11) on one end face, and a limiting ring (12) is provided on the outer side of the sliding limiting part (11). The strip-shaped lifting groove (46) is provided on the end face of the sliding limiting part (11), and the locking slot (45) is provided on the end face of the limiting ring (12).
10. The dilation mechanism according to claim 4, wherein The plug-in connection part (62) is inserted into the gap (64) between the inner airbag (43) and the expansion airbag (42) in the circumferential direction, and the inner airbag (43), the expansion airbag (42) and the plug-in connection part (62) are sealed together. The plug-in connection part (62) is a telescopic structure.