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CN-120859590-B - Elastic thread anorectal ligation device

CN120859590BCN 120859590 BCN120859590 BCN 120859590BCN-120859590-B

Abstract

The invention relates to the technical field of anorectal medical equipment, in particular to an anorectal ligation device with elastic threads. The device comprises a negative pressure suction device, a connecting block, a rotating shaft, a torsion spring, a first electric push rod, a push block and a telescopic rod, wherein the connecting block is symmetrically connected to the negative pressure suction device, the rotating shaft is rotationally connected to the connecting block, the torsion spring is symmetrically wound at two ends of the rotating shaft, the two ends of the torsion spring are respectively connected with the rotating shaft and the connecting block, the first electric push rod is arranged on the rotating shaft, the push block is connected to the telescopic rod of the first electric push rod, and the bottom of the push block is in contact with the surface of the negative pressure suction device. According to the invention, by arranging a plurality of elastic coils and the matched push blocks, the sliding inclined plates and the traction assembly, automatic continuous feeding and positioning of the elastic coils can be realized, specifically, the push blocks can be lifted and pass through a gap between the L-shaped connecting plate and the elastic coils by combining the inclined surfaces of the push blocks and the sliding inclined plates with the reset action of the torsion springs, so that the push blocks can be automatically switched to the positions of the next elastic coils, and repeated ligation can be completed without manual intervention.

Inventors

  • DING YAPENG
  • ZHANG JUN

Assignees

  • 中国人民解放军总医院第一医学中心

Dates

Publication Date
20260512
Application Date
20250902

Claims (7)

  1. 1. The elastic thread anorectal ligation device comprises a negative pressure suction device (1) and is characterized by further comprising a connecting block (2) symmetrically connected to the negative pressure suction device (1), a rotating shaft (3) rotationally connected to the connecting block (2), a torsion spring (4) symmetrically wound on two ends of the rotating shaft (3), two ends of the torsion spring (4) are respectively connected with the rotating shaft (3) and the connecting block (2), a first electric push rod (5) mounted on the rotating shaft (3), a push block (6) connected to a telescopic rod of the first electric push rod (5) and the bottom of the push block (6) is in contact with the surface of the negative pressure suction device (1), an L-shaped connecting plate (7) symmetrically connected to the negative pressure suction device (1), a vertical plate (8) uniformly and alternately connected to the side surface of the L-shaped connecting plate (7), a sliding inclined plate (9) and connected to the vertical plate (8) in a sliding manner, the push block (6) is in contact fit with the sliding plate (9), a connecting spring (10) with two ends respectively connected with the sliding plate (9) and the vertical plate (8), a traction component, the bottom of the push block (6) is arranged on the telescopic rod of the first electric push rod (5) and the negative pressure suction device (001) is used for tightening an elastic thread (001) to a focus on the negative pressure suction device (1), the traction assembly comprises a second electric push rod (11) arranged on the negative pressure suction device (1), a connecting rod (12) connected to a telescopic rod of the second electric push rod (11), a movable frame (13) connected to the side face of the connecting rod (12), a storage groove (1301) formed in the movable frame (13), a limiting plane (1302) further arranged on the movable frame (13), a rotary baffle plate (14) symmetrically connected to the movable frame (13) in a rotary mode, elastic pieces (15) with two ends connected with the rotary baffle plate (14) and the movable frame (13) respectively, and a cutting mechanism arranged inside the movable frame (13) and used for cutting off redundant parts of elastic lines (001).
  2. 2. The elastic thread anorectal ligation device according to claim 1 is characterized in that the cutting mechanism comprises a sliding cutter (17), a cavity (16) is symmetrically formed in the moving frame (13), the sliding cutter (17) is arranged in the cavity (16) in a sliding mode, an air pump (18) is arranged on the side face of the connecting rod (12), two ends of the connecting pipe (19) are respectively connected with the air pump (18) and one of the cavities (16) and are communicated, and two ends of the U-shaped pipe (20) are respectively connected with the two cavities (16) and are communicated.
  3. 3. The elastic thread anorectal ligation device according to claim 1, wherein the tightening assembly comprises a fixing frame (21) connected to the negative pressure suction device (1), a limiting plate (22) connected to the fixing frame (21), a driving motor (23) arranged at intervals on the top of the fixing frame (21), a rotating rod (24) connected to an output shaft of the driving motor (23), and a roller (25) connected to the lower end of the rotating rod (24).
  4. 4. The elastic thread anorectal ligation device according to claim 1, further comprising a liquid suction pump (26) arranged in the negative pressure suction device (1), a liquid suction pipe (27) connected to a liquid inlet of the liquid suction pump (26) and communicated with the liquid suction pump, suction nozzles (28) symmetrically arranged on two sides of a suction head (101) of the negative pressure suction device (1) and connected with the liquid suction pipe (27) and communicated with the suction head, and a collection assembly arranged on the negative pressure suction device (1) and used for collecting mucus sucked by the suction nozzles (28).
  5. 5. The elastic thread anorectal ligation device according to claim 4, wherein the collection assembly comprises an elastic jacket (29) connected to the negative pressure suction device (1), a liquid collecting tube (30) arranged in the elastic jacket (29), a one-way air outlet valve (31) arranged at the top of the liquid collecting tube (30), a circular plate (32) arranged at the end of the liquid collecting tube (30), a hose (33) with two ends respectively connected with the circular plate (32) and a liquid outlet of the liquid pumping pump (26) and communicated with each other, and a limiting mechanism arranged at the end of the liquid collecting tube (30) and used for limiting the circular plate (32).
  6. 6. The elastic thread anorectal ligation device according to claim 5, wherein the limiting mechanism comprises a guide plate (34) symmetrically connected to the inner wall of the end part of the liquid collecting tube (30), a circular plate (32) slidably connected with the guide plate (34), and a rubber clamping block (35) connected to the side surface of the guide plate (34), wherein the rubber clamping block (35) is in contact fit with the circular plate (32).
  7. 7. A stretch yarn anorectal ligation device according to claim 1, further comprising a rubber sleeve (36) connected to the negative pressure suction means (1).

Description

Elastic thread anorectal ligation device Technical Field The invention relates to the technical field of anorectal medical equipment, in particular to an anorectal ligation device with elastic threads. Background In the treatment of anorectal diseases, particularly internal hemorrhoids, a ligation operation is used as a common treatment method, and the blood supply of lesions is cut off by a physical method to promote atrophy and falling of the lesion tissues, and the traditional ligation method depends on manual operation of doctors, so that the efficiency is low, and certain operation difficulty and risk exist. With the development of medical technology, the ligation anastomat is introduced into clinical practice, and can greatly improve the treatment effect and the comfort level of patients. The operation flow of most of the ligation anastomat in the market at present is relatively complicated, and a single ligation process can be completed through a plurality of steps. Specifically, when in use, the elastic coil is usually sleeved on the outer side of the suction head in advance, then the focus part is sucked into the suction head by utilizing the negative pressure device, and then the elastic coil is manually pushed to the focus base part and is tightened and fixed. The series of operations require medical staff to have higher skill and abundant experience so as to ensure accurate ligation position, and in addition, after the elastic coil is tightened, the redundant part of the elastic wire is manually sheared off, so that the complexity and time cost of the operation are further increased. Moreover, the existing ligation anastomat can only process one elastic coil at a time, which means that the above process must be repeated for a lesion with multiple lesions, and a new elastic coil needs to be manually replaced each time, and the frequent manual intervention can not only prolong the operation time, but also increase the risk of infection and other complications of patients. Disclosure of Invention In view of the above, the invention provides an elastic thread anorectal ligation device, which can overcome the defects that the manual operation flow is relatively complicated and only one elastic coil can be processed at a time when the traditional ligation anastomat is used, and the elastic coil needs to be replaced manually frequently for lesions of multiple lesions. The elastic thread anorectal ligation device comprises a negative pressure suction device, a connecting block, a rotating shaft, a torsion spring, a first electric push rod, a push block, an L-shaped connecting plate, a vertical plate, a sliding inclined plate, a connecting spring, a traction component and a tightening component, wherein the connecting block is symmetrically connected to the negative pressure suction device, the rotating shaft is rotationally connected to the connecting block, the torsion spring is symmetrically wound on two ends of the rotating shaft, the two ends of the torsion spring are respectively connected with the rotating shaft and the connecting block, the first electric push rod is installed on the rotating shaft, the push block is connected to a telescopic rod of the first electric push rod, the bottom of the push block is in contact with the surface of the negative pressure suction device, the L-shaped connecting plate is symmetrically connected to the negative pressure suction device, the vertical plate is uniformly connected to the side surface of the L-shaped connecting plate at intervals, the sliding inclined plate is connected to the vertical plate in a sliding mode, the push block is in contact with the sliding inclined plate, the two ends of the connecting spring are respectively connected with the sliding inclined plate, the traction component is arranged on the negative pressure suction device and used for pulling an elastic thread to the bottom of a focus base, and the tightening component is arranged on the negative pressure suction device and used for tightening the elastic thread. The traction assembly comprises a second electric push rod, a connecting rod, a movable frame, a rotating baffle, an elastic piece and a cutting mechanism, wherein the second electric push rod is arranged on the negative pressure suction device, the connecting rod is connected to a telescopic rod of the second electric push rod, the movable frame is connected to the side face of the connecting rod, a storage groove is formed in the movable frame, a limiting plane is further arranged on the movable frame, the rotating baffle is symmetrically and rotatably connected to the movable frame, the two ends of the elastic piece are respectively connected with the rotating baffle and the movable frame, and the cutting mechanism is arranged in the movable frame and used for cutting off redundant parts of elastic lines. The cutting mechanism comprises a sliding cutter, an air pump, a connecting pipe, a U-shaped pipe and a cutting m