Rotary cutter for laparoscopic gynecological operation
By designing an internal rod mechanism and a suction and aspiration mechanism, the laparoscopic gynecological surgical rotary cutter solves the problems of incomplete removal of diseased tissue and difficulty in removing residual tissue, achieving efficient and safe tissue removal and clearing, and reducing the risk of infection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE 980TH HOSPITAL OF THE CHINESE PEOPLES LIBERATION ARMY JOINT LOGISTICS SUPPORT FORCE
- Filing Date
- 2025-02-10
- Publication Date
- 2026-05-08
AI Technical Summary
Existing laparoscopic gynecological surgical cutting instruments are prone to leaving residues when cutting diseased tissue, making them difficult to remove effectively and potentially causing tissue infection. Furthermore, the independent operation of the uterine manipulator and the cutting instrument poses safety risks.
A laparoscopic gynecological surgical rotary cutter was designed, comprising an inner rod mechanism and a suction and removal mechanism. The inner rod mechanism removes tissue through a rotary cutter head and a guide groove, while the suction and removal mechanism removes residual tissue through a negative pressure system. Combined with a rotary cutter barrel and a filter, efficient tissue removal is achieved.
It achieves efficient removal of diseased tissue and clearance of residual tissue, reduces the risk of infection, and improves the safety and efficiency of the surgery.
Smart Images

Figure CN224206868U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical device technology, specifically to a laparoscopic gynecological surgical cutting device. Background Technology
[0002] A laparoscopic gynecological surgical excider is a medical device used in gynecological surgery, primarily for the removal or extraction of gynecological diseased tissue. The excider uses high-frequency vibration or rotation to cut or peel away diseased tissue. It is a highly efficient, safe, and minimally invasive medical device that provides strong support for the treatment of gynecological diseases. With the continuous development of medical technology, it is believed that more advanced laparoscopic gynecological surgical exciders will emerge in the future, bringing better treatment outcomes to patients.
[0003] Patent publication number CN206641896U discloses a novel uterine cutting device, comprising a uterine cutting device and a uterine lifting device. The uterine lifting device includes a guide rod, a hollow sleeve, a cervical fixator, and a uterine lifting cup. The guide rod is disposed within the hollow sleeve, and the cervical fixator and the uterine lifting cup are sleeved on the hollow sleeve. The uterine cutting device includes a motor assembly, a cutting blade, a handle, and a housing. The motor assembly is disposed on the upper part of the handle and is surrounded by the housing. The cutting blade is connected to the motor assembly.
[0004] To address the inconvenience and potential medical accidents associated with operating the uterine lifter and uterine cutter independently, current technology uses a uterine lifter to elevate the uterus away from other organs. A cervical fixator on the lifter then secures the cervix. With the aid of an endoscope and hysteroscope, the uterine cutter's blade is aimed at the target area and cuts. This effectively reduces the risk of the blade cutting other organs. However, this method still has drawbacks. When cutting diseased tissue, the remaining tissue may be too small to be removed, potentially leading to tissue infection. Utility Model Content
[0005] The purpose of this invention is to provide a laparoscopic gynecological surgical cutting device to solve the problems mentioned in the background art.
[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0007] A laparoscopic gynecological surgical cutting device includes an inner rod mechanism, a cutting mechanism on the outer wall of the inner rod mechanism, and a suction and removal mechanism on the top surface of the cutting mechanism.
[0008] The inner rod mechanism includes a rotary cutting motor, the output shaft of which is fixedly connected to a rotary connecting rod, and the end of the rotary connecting rod away from the rotary cutting motor is fixedly connected to an inner rod.
[0009] A further improvement of this utility model is that: the outer wall of the inner rod is provided with a guide groove, and there are multiple guide grooves; a transmission blade is fixedly installed at the left end of the inner rod.
[0010] A further improvement of this utility model is that: a positioning blade head is fixedly installed at the left end of the transmission blade, and a threaded sleeve is fixedly installed on the outer wall of the inner rod, with threads provided on the outer wall of the threaded sleeve.
[0011] A further improvement of the present invention is that the rotary cutting mechanism includes a rotary cutting barrel, which is threadedly connected to the outer wall of a threaded sleeve, and the outer wall of the rotary cutting barrel is provided with suction holes, and the number of suction holes is multiple.
[0012] A further improvement of this utility model is that: a rotary cutting head is fixedly installed at the left end of the rotary cutting barrel, and there are multiple rotary cutting heads. A baffle groove is fixedly installed on the outer wall of the multiple rotary cutting heads, and a filter is fixedly connected to the end of the rotary cutting barrel away from the rotary cutting head.
[0013] A further improvement of this utility model is that: the filter is connected to the rotary cutting barrel, a sealing layer is fixedly installed on the outer wall of the right end of the rotary cutting barrel, an installation block is fixedly installed on the right end of the filter, a handle is fixedly installed on the bottom surface of the installation block, and the side of the installation block is fixedly connected to the rotary cutting motor.
[0014] A further improvement of this utility model is that: the suction and removal mechanism includes a second connecting pipe, which is fixedly installed on the top surface of the filter and connected to the filter; an air pump is fixedly connected to the top surface of the second connecting pipe; a first connecting pipe is fixedly installed on the top surface of the air pump and connected to the air pump; and a negative pressure bottle is fixedly installed on the top surface of the first connecting pipe and connected to the first connecting pipe.
[0015] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:
[0016] 1. This utility model provides a laparoscopic gynecological surgical cutting device. It features a cutting mechanism consisting of a cutting barrel, suction hole, cutting head, baffle groove, sealing layer, filter, handle, and mounting block, and an inner rod mechanism consisting of an inner rod, guide groove, transmission blade, positioning blade, rotating connecting rod, rotating cutting motor, and threaded sleeve. This allows for the cutting of diseased tissue. When needed, the device is inserted into the patient's abdominal cavity under laparoscopy. The rotating cutting motor then rotates the rotating connecting rod, causing the inner rod, which is fixedly connected to the rotating connecting rod, to rotate. This, in turn, causes the threaded sleeve to rotate, allowing the cutting barrel, threadedly connected to the threaded sleeve, to move downwards. This allows the cutting head, fixedly connected to the cutting barrel, to remove the patient's tissue. Simultaneously, the rotating transmission blade guides the removed tissue into the cutting barrel for easy removal.
[0017] 2. This utility model provides a laparoscopic gynecological surgical excision device. By setting up a suction and removal mechanism consisting of a negative pressure bottle, a first connecting tube, an air pump, and a second connecting tube, it can remove residual excised tissue to avoid contaminating the patient's abdominal cavity. When needed, simply start the air pump. The air pump can remove the fine tissue inside the patient's abdominal cavity through the suction hole, and then guide it into the excision barrel through the guide channel, and then filter it into the negative pressure bottle. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0019] Figure 2 This is a cross-sectional structural diagram of the present invention;
[0020] Figure 3 This is a schematic diagram of the internal rod mechanism of this utility model;
[0021] Figure 4 This is an exploded structural diagram of the rotary cutting mechanism of this utility model;
[0022] Figure 5 This is a schematic diagram of the suction and decompression mechanism of this utility model.
[0023] In the diagram: 1. Inner rod mechanism; 11. Inner rod; 12. Guide channel; 13. Transmission blade; 14. Positioning cutter head; 15. Rotating connecting rod; 16. Rotating cutting motor; 17. Threaded sleeve; 2. Rotary cutting mechanism; 21. Rotary cutting barrel; 22. Suction hole; 23. Rotary cutting cutter head; 24. Baffle groove; 25. Sealing layer; 26. Filter; 27. Handle; 28. Mounting block; 3. Suction mechanism; 31. Negative pressure bottle; 32. No. 1 connecting pipe; 33. Suction pump; 34. No. 2 connecting pipe. Detailed Implementation
[0024] The present invention will be further described in detail below with reference to embodiments:
[0025] Example 1
[0026] like Figure 1-5 As shown, this utility model provides a laparoscopic gynecological surgical rotary cutter, including an inner rod mechanism 1, a rotary cutting mechanism 2 disposed on the outer wall of the inner rod mechanism 1, and a suction and removal mechanism 3 disposed on the top surface of the rotary cutting mechanism 2. The inner rod mechanism 1 includes a rotary cutting motor 16, the output shaft of the rotary cutting motor 16 is fixedly connected to a rotary connecting rod 15, and an inner rod 11 is fixedly connected to the end of the rotary connecting rod 15 away from the rotary cutting motor 16. The outer wall of the inner rod 11 is provided with guide grooves 12, and there are multiple guide grooves 12. A transmission blade 13 is fixedly installed on the left end of the inner rod 11, and a positioning blade head 14 is fixedly installed on the left end of the transmission blade 13. A threaded sleeve 17 is fixedly installed on the outer wall of the inner rod 11, and the outer wall of the threaded sleeve 17 is provided with a threaded sleeve. The rotary cutting mechanism 2 includes a rotary cutting barrel 21, which is threadedly connected to the outer wall of a threaded sleeve 17. The outer wall of the rotary cutting barrel 21 has multiple suction holes 22. A rotary cutting head 23 is fixedly installed at the left end of the rotary cutting barrel 21. A baffle groove 24 is fixedly installed on the outer wall of each rotary cutting head 23. A filter 26 is fixedly connected to the end of the rotary cutting barrel 21 away from the rotary cutting head 23. The filter 26 communicates with the rotary cutting barrel 21. A sealing layer 25 is fixedly installed on the outer wall of the right end of the rotary cutting barrel 21. An installation block 28 is fixedly installed at the right end of the filter 26. A handle 27 is fixedly installed on the bottom surface of the installation block 28. The side of the installation block 28 is fixedly connected to a rotary cutting motor 16.
[0027] In this embodiment, a rotary cutting mechanism 2 consisting of a rotary cutting barrel 21, a suction hole 22, a rotary cutting head 23, a baffle 24, a sealing layer 25, a filter 26, a handle 27, and a mounting block 28, and an inner rod mechanism 1 consisting of an inner rod 11, a guide groove 12, a transmission blade 13, a positioning blade 14, a rotating connecting rod 15, a rotating cutting motor 16, and a threaded sleeve 17, can be used to rotary cut diseased tissue. When needed, the device is simply inserted into the patient's abdominal cavity under laparoscopy, and then the rotating cutting motor 16 is started. The rotating cutting motor 16 drives the rotating connecting rod 15 to rotate, which in turn causes the inner rod 11, which is fixedly connected to the rotating connecting rod 15, to rotate, which in turn causes the threaded sleeve 17 to rotate. This causes the rotary cutting barrel 21, which is threadedly connected to the threaded sleeve 17, to move downward, thereby allowing the rotary cutting head 23, which is fixedly connected to the rotary cutting barrel 21, to cut the patient's tissue. At the same time, the rotation of the transmission blade 13 can conduct the cut tissue into the rotary cutting barrel 21 for easy removal.
[0028] Example 2
[0029] like Figure 1-5As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the suction and removal mechanism 3 includes a second connecting pipe 34, which is fixedly installed on the top surface of the filter 26 and connected to the filter 26. An air suction pump 33 is fixedly connected to the top surface of the second connecting pipe 34, and a first connecting pipe 32 is fixedly installed on the top surface of the air suction pump 33 and connected to the air suction pump 33. A negative pressure bottle 31 is fixedly installed on the top surface of the first connecting pipe 32 and connected to the first connecting pipe 32.
[0030] In this embodiment, the suction and removal mechanism 3, consisting of a negative pressure bottle 31, a first connecting pipe 32, an air pump 33, and a second connecting pipe 34, can remove residual tissue after excision to avoid contaminating the patient's abdominal cavity. When needed, the air pump 33 can be started, and the air pump 33 can remove the fine tissue inside the patient's abdominal cavity through the suction hole 22, and then guide it through the guide channel 12 into the rotary cutting barrel 21, and then filter it through the filter 26 into the negative pressure bottle 31.
[0031] The working principle of this laparoscopic gynecological surgical excider will be explained in detail below.
[0032] like Figure 1-5 As shown, in use, the device is first inserted into the patient's abdominal cavity under laparoscopy. Then, the rotary cutting motor 16 is started, which drives the rotary connecting rod 15 to rotate, thereby causing the inner rod 11, which is fixedly connected to the rotary connecting rod 15, to rotate. This causes the threaded sleeve 17 to rotate, which in turn causes the rotary cutting barrel 21, which is threadedly connected to the threaded sleeve 17, to move downward. This allows the rotary cutting head 23, which is fixedly connected to the rotary cutting barrel 21, to remove the patient's tissue. At the same time, the transmission blade 13 rotates to conduct the removed tissue into the rotary cutting barrel 21 for easy removal. Then, the suction pump 33 is started, which can suction out the fine tissue inside the patient's abdominal cavity through the suction hole 22. The tissue is then guided into the rotary cutting barrel 21 through the guide groove 12 and filtered through the filter 26 before entering the negative pressure bottle 31.
[0033] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.
Claims
1. A laparoscopic gynecological surgical cutting device, comprising an inner rod mechanism (1), characterized in that: The outer wall of the inner rod mechanism (1) is provided with a rotary cutting mechanism (2), and the top surface of the rotary cutting mechanism (2) is provided with a suction and removal mechanism (3). The inner rod mechanism (1) includes a rotary cutting motor (16), the output shaft of which is fixedly connected to a rotary connecting rod (15), and the end of the rotary connecting rod (15) away from the rotary cutting motor (16) is fixedly connected to an inner rod (11).
2. The laparoscopic gynecological surgical excision device according to claim 1, characterized in that: The outer wall of the inner rod (11) is provided with a guide groove (12), and there are multiple guide grooves (12). A transmission blade (13) is fixedly installed on the left end of the inner rod (11).
3. The laparoscopic gynecological surgical excision device according to claim 2, characterized in that: A positioning head (14) is fixedly installed on the left end of the transmission blade (13), and a threaded sleeve (17) is fixedly installed on the outer wall of the inner rod (11). The outer wall of the threaded sleeve (17) is provided with threads.
4. The laparoscopic gynecological surgical excision device according to claim 3, characterized in that: The rotary cutting mechanism (2) includes a rotary cutting barrel (21), which is threadedly connected to the outer wall of the threaded sleeve (17). The outer wall of the rotary cutting barrel (21) is provided with suction holes (22), and there are multiple suction holes (22).
5. The laparoscopic gynecological surgical excision device according to claim 4, characterized in that: A rotary cutting head (23) is fixedly installed on the left end of the rotary cutting barrel (21). There are multiple rotary cutting heads (23). A baffle (24) is fixedly installed on the outer wall of the multiple rotary cutting heads (23). A filter (26) is fixedly connected to the end of the rotary cutting barrel (21) away from the rotary cutting head (23).
6. The laparoscopic gynecological surgical excision device according to claim 5, characterized in that: The filter (26) is connected to the rotary cutting barrel (21). A sealing layer (25) is fixedly installed on the outer wall of the right end of the rotary cutting barrel (21). An installation block (28) is fixedly installed on the right end of the filter (26). A handle (27) is fixedly installed on the bottom surface of the installation block (28). The side of the installation block (28) is fixedly connected to the rotary cutting motor (16).
7. The laparoscopic gynecological surgical excision device according to claim 6, characterized in that: The suction and removal mechanism (3) includes a second connecting pipe (34), which is fixedly installed on the top surface of the filter (26) and connected to the filter (26). A suction pump (33) is fixedly connected to the top surface of the second connecting pipe (34), and a first connecting pipe (32) is fixedly installed on the top surface of the suction pump (33). The first connecting pipe (32) is connected to the suction pump (33), and a negative pressure bottle (31) is fixedly installed on the top surface of the first connecting pipe (32). The negative pressure bottle (31) is connected to the first connecting pipe (32).
Citation Information
Patent Citations
Novel uterus rotary -cut ware
CN206641896U