Integrated abdominal tumor closed rotary cutting equipment based on pneumatic control and rotary cutting method thereof

Abstract

The invention relates to the technical field of medical operation equipment, in particular to integrated abdominal tumor closed rotary cutting equipment based on pneumatic control and a rotary cutting method thereof.The integrated abdominal tumor closed rotary cutting equipment comprises a shell, and a sleeve is arranged at the right end of the shell; the air bag is arranged at the right end of the sleeve and comprises a fixing ring connected with the sleeve, an air channel fixed to the fixing ring and bag cloth, and an elastic rubber strip is fixed to the outer side of an opening in the right end of the air bag; the rotatable knife tube is arranged in the shell and extends into the sleeve, and a rotating assembly for driving the shell to rotate is arranged in the shell; the air inflation assembly is arranged in the shell and used for inflating the air bag; and the clamping jaw part of the grasping forceps can extend into the sleeve from one end of the shell and penetrate through the air bag to extend into the abdominal cavity of the patient. One person can independently complete the whole process from hermetically wrapping the tumor to taking out the air bag and the residual tumor, and the rotary cutting starting and stopping time and the air bag pressure relief node are automatically controlled, so that more efficient and safer laparoscopic surgery can be completed with less manpower.

Description

Technical Field

[0001] The present invention relates to the technical field of medical surgical equipment, and particularly to an integrated abdominal tumor closed rotary cutting equipment based on pneumatic control and a rotary cutting method thereof. Background Art

[0002] The research and development of intelligent medical equipment has always been a research hotspot. Many companies and research institutions have achieved many successes. However, for some relatively mature medium and small surgeries, their degree of intelligence is actually lower. On the contrary, more human resources will be occupied for simple basic work such as observation, recording, and fixation. Taking the abdominal tumor rotary cutting technology as an example, more than 85% of the classic gynecological laparotomy surgeries have now been replaced by laparoscopic surgeries, but the potential safety hazards of laparoscopy cannot be underestimated. According to FDA analysis: among every 350 patients undergoing hysterectomy or myomectomy, about 1 case is found to have occult uterine sarcoma. Multiple literature reports have shown that rotary cutting has led to the dissemination of occult malignant tumors, and there is evidence that these metastases originate from the tissue fragments generated by rotary cutting, rather than self-metastasis. The US FDA issued a safety notice on April 17, 2014, not recommending that doctors perform myomectomy under laparoscopy, and warned again about the use of laparoscopic electric rotary cutters on November 25 of the same year. Therefore, how to carry out the intelligent upgrade of traditional rotary cutters to ensure their airtightness, controllability of the rotary cutting process, safety, and intelligence has become a highly regarded research direction in the field of medical equipment.

[0003] For example, Chinese invention patent CN215458252U discloses a laparoscopic rotary cutting extraction bag. This device only stays at enhancing the airtightness of the device, and cannot ensure that the extraction bag will not be damaged during the rotary cutting process, and to a certain extent, it will also increase the complexity of the surgery. At the same time, Chinese invention patent CN206630657U discloses a minimally invasive surgical pneumoperitoneum specimen fragmentation extraction system. Its adopted integrated extraction process is relatively modern, but it does not clarify how to protect the bag wall from being damaged if there is violent shaking during the tumor rotary cutting process, that is, the tumor is not clamped during the rotary cutting process, and the safety is in doubt.

[0004] Based on this, an integrated abdominal tumor closed rotary cutting equipment based on pneumatic control and a rotary cutting method thereof are proposed to solve the above problems. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides an integrated abdominal tumor closed rotary cutting equipment based on pneumatic control and a rotary cutting method thereof, which can ensure the safety of the tumor rotary cutting process and no residue remains in the body, reduce the number of physicians participating in the surgery, and at the same time, can also reduce the number of operation holes opened in the patient's abdominal cavity.

[0006] To achieve the above object, the present invention provides the following technical solution: An integrated laparoscopic tumor enclosing and rotary cutting equipment based on pneumatic control, comprising:

[0007] A housing, a sleeve is provided at the right end of the housing;

[0008] An airbag, which is arranged at the right end of the sleeve and includes a fixing ring connected to the sleeve, an air duct fixed to the fixing ring, and a bladder cloth. An elastic rubber strip is fixed to the outer side of the opening at the right end of the airbag;

[0009] A rotatable cutter tube, which is arranged in the housing and extends into the sleeve. A rotating assembly for driving it to rotate is arranged in the housing;

[0010] An inflation assembly, which is arranged in the housing and is used for inflating the airbag;

[0011] A grasping forceps, the clamping jaw part of which can extend into the sleeve from one end of the housing and pass through the airbag to extend into the patient's abdominal cavity.

[0012] Furthermore, the housing is composed of a front half shell and a rear half shell. A left cover is commonly threadedly connected to the left ends of the front half shell and the rear half shell. A right cover is commonly threadedly connected to the right ends of the front half shell and the rear half shell. A bottom cover is commonly threadedly connected to the bottom ends of the front half shell and the rear half shell. This facilitates the assembly work of the rotary equipment and makes it easier to install and disassemble its internal parts.

[0013] Furthermore, the right end of the sleeve is flared, and the incision of the cutter tube is arranged in the flare of the sleeve. This can effectively prevent the cutter tube from contacting the airbag and damaging the airbag.

[0014] Furthermore, the rotating assembly includes a rotatable rotating sleeve arranged in the housing. A support sleeve is fixed to the inner wall of the rotating sleeve. The cutter tube is fixed to the inner wall of the support sleeve. A rotary driving member is arranged in the housing. The output end of the rotary driving member is connected to the rotating sleeve through a transmission member. When the rotary driving member is started, the output end of the rotary driving member rotates. Under the transmission of the transmission member, the rotating sleeve can rotate.

[0015] Furthermore, the transmission member includes a driving bevel gear fixed to the output shaft of the rotary driving member. A driven bevel gear meshing with the driving bevel gear is fixed to the outside of the rotating sleeve. The output end of the rotary driving member rotates. Under the meshing transmission of the driving bevel gear and the driven bevel gear, the rotating sleeve can rotate.

[0016] Furthermore, a convex block is formed outward on the outer periphery of the rotating sleeve, and a groove cooperating with the convex block is formed inward on the inner wall of the housing. Under the limiting action of the convex block and the groove, the rotation of the rotating sleeve is more stable.

[0017] Furthermore, the inflation component includes an air pump arranged in the outer shell, and the air inlet pipe of the air pump passes through and extends to the bottom of the bottom cover. An abutment ring is fixed to the outside of the air inlet pipe, and a sealing ring is fixed to the bottom of the abutment ring. There is a circle of air outlet holes on the rotating sleeve, and a circle of small holes connected to the airway at the right end of the sleeve. The air pump draws external gas into the interior of the outer shell, and enters the interlayer space between the sleeve and the knife tube through the air outlet holes, and enters the airway through the small holes, and expands the bag cloth through the airway, so that the airbag bag expands and the right end opening opens, which makes it convenient for the grasping forceps to drag the tumor block from the right side opening of the airbag bag to the inside of the airbag bag, and then deflate the air through the airway to make the bag cloth shrink and wrap the tumor block.

[0018] Furthermore, the inner walls of the front half shell and the rear half shell are both provided with corresponding clips, and the housing of the rotary drive member and the housing of the air pump both form inward slots that cooperate with the clips, thereby realizing convenient disassembly and assembly of the rotary drive member and the air pump.

[0019] A method for operatively removing a peritoneal tumor using an integrated pneumatically controlled closed operative operative device, comprising the following steps:

[0020] The deflated airbag is inserted into the patient's abdominal cavity through the sleeve through the operating hole. The air pump draws outside air into the shell. The air enters the interlayer space between the sleeve and the knife tube through the air outlet hole and enters the airway through the small hole. The airbag cloth is expanded through the airway, causing the airbag to expand and the right end opening to open.

[0021] The claw part of the grasping forceps is extended from one end of the shell into the sleeve, and then extends through the air bag into the patient's abdominal cavity. The cut tumor is grabbed and dragged into the air bag. After the tumor enters the air bag, the grasping forceps drags the tumor to the incision of the knife tube. The air bag is deflated and the air bag cloth wraps the tumor.

[0022] Start the rotary drive component to rotate the output shaft of the rotary drive component. Under the meshing transmission of the active bevel gear and the driven bevel gear, the knife tube can rotate to cut the tumor. After the grasping forceps removes the cut part of the tumor from the shell, the grasping forceps are inserted into the airbag again to grab the tumor block and drag it to the incision of the knife tube. As the tumor volume decreases, the air is continuously deflated to reduce pressure. The airbag wraps the tumor again and cuts it through the rotating knife tube. This process continues until all tumors are removed from the operating port. The equipment is then removed from the surgical port for subsequent wound suturing to complete the operation.

[0023] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0024] 1. The integrated abdominal tumor closed rotary cutting equipment based on pneumatic control and its rotary cutting method can reduce the number of medical staff in a laparoscopic surgery. Different from simply changing the rotary cutting bag mode to create a closed environment, this equipment can be independently completed by one person from hermetically wrapping the tumor to removing the airbag and residual tumor. The start and stop time of rotary cutting and the airbag pressure relief node can be self-controlled during the process, making it possible to complete a more efficient and safe laparoscopic surgery with less manpower.

[0025] 2. The integrated abdominal tumor closed rotary cutting equipment based on pneumatic control and its rotary cutting method reduce the risk of tumor dissemination caused by debris splashing in traditional laparoscopic surgeries. The device uses an airbag to wrap the tumor, and the physician uses grasping forceps to drag the tumor into the airbag bag to achieve closed cutting of the tumor. At the same time, there are three safeguards for safety during rotary cutting. The first is that a flared structure is provided at the end of the sleeve to prevent accidental scratching of the airbag bag wall; the second is that the physician grasps the tumor with the grasping forceps to prevent its violent shaking; the third is that the airbag bag that shrinks due to pressure relief wraps the tumor and clamps and fixes it, making it possible to improve the safety of laparoscopic surgery. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural diagram of the present invention;

[0027] Figure 2 is a structural sectional view of the present invention;

[0028] Figure 3 is a schematic structural diagram of the rotating assembly and the inflating assembly in the present invention;

[0029] Figure 4 is a schematic structural diagram of the connection structure between the airbag bag and the sleeve in the present invention.

[0030] In the figure: 1. Outer shell; 11. Front half shell; 12. Rear half shell; 13. Left cover; 14. Right cover; 15. Bottom cover; 2. Sleeve; 3. Airbag bag; 31. Fixed ring; 32. Air duct; 33. Airbag cloth; 34. Elastic rubber strip; 4. Knife tube; 5. Rotating assembly; 51. Rotating sleeve; 52. Support sleeve; 53. Rotating drive member; 54. Driving bevel gear; 55. Driven bevel gear; 56. Protrusion; 57. Groove; 6. Inflating assembly; 61. Air pump; 62. Intake pipe; 63. Contact ring; 64. Sealing ring; 65. Air outlet hole; 66. Small hole; 7. Grasping forceps; 8. Card strip; 9. Card slot. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0032] Please refer to Figures 1 - 4 , an integrated abdominal tumor closed rotary cutting device based on pneumatic control in this embodiment includes a housing 1. A sleeve 2 is provided at the right end of the housing 1. An airbag 3 is provided at the right end of the sleeve 2. A cutter tube 4 extending into the sleeve 2 is provided in the housing 1. A rotating assembly 5 for driving the cutter tube 4 to rotate is provided in the housing 1. An inflation assembly 6 for inflating the airbag 3 is provided in the housing 1. A grasping forceps 7 can also be placed in the housing 1, and its jaw part can extend into the sleeve 2 from one end of the housing 1 and pass through the airbag 3 to extend into the patient's abdominal cavity.

[0033] The rotary cutting device adopts a three-layer design. The outer protective sleeve 2 is 20 mm, the middle rotary cutting cutter tube 4 is 16 mm, and the inner medical grasping forceps 7 is 10 mm. While being compatible with the size of general abdominal operation holes, it can directly cooperate with the existing standard 10 mm outer diameter medical grasping forceps 7. At the same time, a pressure sensor is provided inside the housing 1. By the sensor, the air chamber pressure inside the housing 1 is captured in real time. By comparing the pressure digital signal with the internal pressure characteristic change curve of the normal air charging and discharging of the air chamber, the air charging and discharging working mode can be determined, so as to realize the intelligent air charging and discharging of the airbag 3. The intelligent design of the air charging and discharging of the airbag 3 and the optimization of the scheme for wrapping and sealing the tumor also greatly reduce the number of auxiliary personnel and the number of operation holes.

[0034] In the initial state, the airbag bag 3 is in a contracted state. The airbag bag 3 is extended into the patient's abdominal cavity through the sleeve 2 through the operating hole, and the airbag bag 3 is inflated through the inflation component 6 to expand the airbag bag 3 to form an accommodating space. The claws of the grasping forceps 7 are then inserted into the airbag bag 3 from the shell 1, and enter the patient's abdominal cavity from the airbag bag 3 to grab the tumor and drag it into the airbag bag 3. The airbag bag 3 is then deflated, and the right opening of the airbag bag 3 is closed. At the same time, the bag cloth 33 wraps the tumor. The grasping forceps 7 moves the tumor toward the incision of the knife tube 4. The rotating component 5 drives the knife tube 4 to rotate to cut the tumor. The tumor is cut into long strips and is cut by the grasping forceps 7. The cut part of the tumor is pulled out from the shell 1 and saved for record. Then the grasping forceps 7 are inserted into the airbag bag 3, and the remaining tumor is continued to be dragged to the incision of the knife tube 4. As the tumor volume decreases, the air pressure sensor can judge and organize the next round of decompression process by itself until the tumor is wrapped and cut again. This process continues until all tumors are removed from the operation port. At this time, the doctor can take out the entire device and perform subsequent wound suture work to complete the operation. During the operation, the airbag bag 3 creates a closed cutting environment, so that the tumor block is fully cut inside it and completely removed, reducing the splashing of meat slices during cutting and returning to the patient's body to cause re-infection.

[0035] The housing 1 is composed of a front half-shell 11 and a rear half-shell 12. The left ends of the front half-shell 11 and the rear half-shell 12 are threadedly connected to a left cover 13, the right ends of the front half-shell 11 and the rear half-shell 12 are threadedly connected to a right cover 14, and the bottom ends of the front half-shell 11 and the rear half-shell 12 are threadedly connected to a bottom cover 15. The left cover 13, the right cover 14 and the bottom cover 15 are screwed together to respectively connect the left end, right end and bottom end of the front half-shell 11 and the rear half-shell 12, thereby completing the assembly of the rotating equipment and making it easier to install and disassemble its internal parts.

[0036] A sealing strip is embedded in the contact surface of the front half shell 11 and the rear half shell 12 to improve the sealing performance after the front half shell 11 and the rear half shell 12 are assembled, and sealing rings are embedded between the left cover 13, the right cover 14 and the bottom cover 15 and the outer shell 1 respectively to improve the sealing performance after the left cover 13, the right cover 14 and the bottom cover 15 are connected to the left end, right end and bottom end of the front half shell 11 and the rear half shell 12 respectively.

[0037] By setting the right end of the sleeve 2 into a flared shape and setting the cutout of the knife tube 4 in the flared shape of the sleeve 2, it is possible to effectively prevent the knife tube 4 from contacting the airbag bag 3 and causing damage to the airbag bag 3.

[0038] In this embodiment, the airbag bag 3 includes a fixing ring 31 connected to the sleeve 2. Several air channels 32 and a bag cloth 33 are provided on the fixing ring 31. By connecting the fixing ring 31 to the outer side of the right end of the sleeve 2, the bag cloth 33 can be expanded by inflating the air channel 32 to form an accommodating space.

[0039] During assembly, the fixing ring 31 can be tied to the outer periphery of the right end of the sleeve 2 with a thin rope to complete the assembly of the airbag bag 3 and the sleeve 2, and an elastic rubber strip 34 is also fixedly sleeved at the opening of the airbag bag 3, and the airway 32 stretches the bag cloth 33 to open. The elastic rubber strip 34 is stretched, the opening of the airbag bag 3 is opened, the airway 32 is exhausted, the bag cloth 33 contracts, and the elastic rubber strip 34 retracts, so that the opening of the airbag bag 3 is closed.

[0040] Since general tumor excision equipment requires auxiliary personnel to build a closed environment in the remaining operating holes, the construction process is complicated, and the tumor is only fixed by the operating physician using medical forceps 7 during the entire excision process. The tumor is prone to violent shaking, and it is easy to cause the cavity wall to rupture after hitting the closed cavity wall, causing safety hazards. However, this equipment can reduce the volume of the airbag bag 3 and perform a second wrapping of the tumor, which greatly enhances the stability and controllability of the operation and reduces the risk of damage to the wall of the airbag bag 3.

[0041] As a specific structure of a rotating assembly 5, Figures 3 - 4 As shown, the rotating assembly 5 includes a rotating sleeve 51 which is arranged in the outer shell 1 and can rotate. A support sleeve 52 is fixed to the inner wall of the rotating sleeve 51, and the knife tube 4 is fixed on the inner wall of the support sleeve 52. A rotating driving member 53 is arranged in the outer shell 1, and the output end of the rotating driving member 53 is connected to the rotating sleeve 51 through a transmission member.

[0042] When the knife tube 4 needs to be rotated for cutting, the rotary driving member 53 is started, and the output end of the rotary driving member 53 rotates. Under the transmission action of the transmission member, the rotating sleeve 51 can be rotated.

[0043] Among them, the transmission part includes an active bevel gear 54 fixed to the output shaft of the rotary drive part 53, and a driven bevel gear 55 engaged with the active bevel gear 54 is fixed to the outer side of the rotating sleeve 51. By starting the rotary drive part 53, the output shaft of the rotary drive part 53 rotates, and the knife tube 4 can rotate under the meshing transmission of the active bevel gear 54 and the driven bevel gear 55.

[0044] A protrusion 56 is formed outwardly on the outer periphery of the rotating sleeve 51, and a groove 57 is formed inwardly on the inner wall of the housing 1 to cooperate with the protrusion 56. Under the limiting action of the protrusion 56 and the groove 57, the rotation of the rotating sleeve 51 is more stable.

[0045] As a specific structure of an inflatable component 6, Figures 2 - 4As shown, the inflation component 6 includes an air pump 61 arranged in the shell 1, and the air inlet pipe 62 of the air pump 61 passes through and extends to the bottom of the bottom cover 15. An abutment ring 63 is fixed to the outside of the air inlet pipe 62, and a sealing ring 64 is fixed to the bottom of the abutment ring 63. When the bottom cover 15 is rotated to the bottom end of the shell 1, the bottom cover 15 squeezes the sealing ring 64 to form a seal to prevent gas from leaking from the gap between the air inlet pipe 62 and the bottom cover 15. There is a circle of air outlet holes 65 on the rotating sleeve 51, and the right end of the sleeve 2 has a The airway 32 is connected to a circle of small holes 66, and the air pump 61 draws external air into the interior of the shell 1, and enters the interlayer space between the sleeve 2 and the knife tube 4 through the air outlet 65, and enters the airway 32 through the small hole 66. The bag cloth 33 is expanded through the airway 32, so that the airbag 3 is expanded and the right end opening is opened, which makes it convenient for the grasping forceps 7 to drag the tumor block from the right side opening of the airbag 3 to the inside of the airbag 3, and then the air is deflated through the airway 32, so that the bag cloth 33 is collapsed and the tumor block is wrapped, and the cutting operation can be performed.

[0046] The inner wall of the outer shell 1 forms a clamping strip 8 inwardly, and the outer shell 1 of the rotary drive component 53 and the outer shell 1 of the air pump 61 both form a clamping groove 9 inwardly. By cooperating with the clamping strip 8 and the clamping groove 9, the rotary drive component 53 and the air pump 61 are installed into the outer shell 1, thereby realizing convenient disassembly and assembly of the rotary drive component 53 and the air pump 61.

[0047] In summary, when the present invention is used, only one physician is required to perform the entire abdominal tumor rotary excision surgery. Meanwhile, the patient only needs to have two abdominal operation holes: one 20 mm operation hole for inserting the rotary excision device, and the other for inserting the medical imaging device. The specific steps of the rotary excision method of an integrated closed rotary excision device for abdominal tumors based on pneumatic control in this embodiment are as follows:

[0048] The doctor holds the outer shell 1 of the rotary cutting device in his left hand and the medical forceps 7 in his right hand, and observes the situation in the patient's abdominal cavity in real time through the imaging equipment. First, the sleeve 2 of the rotary cutting device is passed through the operating hole to extend the folded airbag 3 into the patient's abdominal cavity. The air pump 61 draws outside air into the inside of the outer shell 1. The air enters the interlayer space between the sleeve 2 and the knife tube 4 through the air outlet 65, and enters the airway 32 through the small hole 66. The bag cloth 33 is expanded through the airway 32, so that the airbag 3 is expanded and the right end opening is opened.

[0049] The claw part of the grasping forceps 7 is extended from one end of the outer shell 1 into the sleeve 2, and extends through the air bag 3 into the patient's abdominal cavity, grabbing the cut tumor and dragging it into the air bag 3. After the tumor enters the air bag 3, the grasping forceps 7 drags the tumor block to the incision of the knife tube 4, the air bag 3 is deflated, and the air bag cloth 33 wraps the tumor.

[0050] Start the rotary drive 53 to rotate the output shaft of the rotary drive 53. Under the meshing transmission of the driving bevel gear 54 and the driven bevel gear 55, the cutter tube 4 can rotate to cut the tumor. After the grasping forceps 7 take out the cut part of the tumor from the housing 1, the grasping forceps 7 are inserted into the airbag 3 again to grasp the tumor mass and drag it to the incision of the cutter tube 4. As the volume of the tumor decreases, continue to deflate for decompression. The airbag 3 wraps the tumor again and is cut by the rotating cutter tube 4 until all the tumors are taken out from the operation port, until all the tumor masses are taken out, and the equipment is taken out from the surgical incision to complete the operation.

[0051] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0052] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An integrated abdominal tumor closed rotary cutting equipment based on pneumatic control, characterized in that, Comprising: A housing (1), with a sleeve (2) provided at the right end of the housing (1); An airbag (3), arranged at the right end of the sleeve (2), which includes a fixing ring (31) connected to the sleeve (2), an air duct (32) fixed to the fixing ring (31), and a bladder cloth (33). An elastic rubber strip (34) is fixed to the outer side of the open end of the airbag (3); A rotatable cutter tube (4), arranged inside the housing (1) and extending into the sleeve (2). A rotating assembly (5) for driving its rotation is arranged inside the housing (1); An inflation assembly (6), arranged inside the housing (1), for inflating the airbag (3); A gripper (7), whose jaw part can extend into the sleeve (2) from one end of the housing (1) and pass through the airbag (3) to extend into the patient's abdominal cavity.

2. The integrated abdominal tumor closed rotary cutting equipment based on pneumatic control according to claim 1, wherein: The housing (1) is composed of a front half shell (11) and a rear half shell (12). A left cover (13) is commonly thread - connected to the left ends of the front half shell (11) and the rear half shell (12). A right cover (14) is commonly thread - connected to the right ends of the front half shell (11) and the rear half shell (12). A bottom cover (15) is commonly thread - connected to the bottom ends of the front half shell (11) and the rear half shell (12).

3. The integrated abdominal tumor closed rotary cutting equipment based on pneumatic control according to claim 1, characterized in that: The right end of the sleeve (2) is flared, and the incision of the cutter tube (4) is arranged within the flare of the sleeve (2).

4. The integrated abdominal tumor closed rotary cutting equipment based on pneumatic control according to claim 2, characterized in that: The rotating assembly (5) includes a rotatable rotating sleeve (51) arranged inside the housing (1). A support sleeve (52) is fixed to the inner wall of the rotating sleeve (51). The cutter tube (4) is fixed to the inner wall of the support sleeve (52). A rotation driving member (53) is arranged inside the housing (1), and the output end of the rotation driving member (53) is connected to the rotating sleeve (51) through a transmission member.

5. The integrated abdominal tumor closed rotary cutting equipment based on pneumatic control according to claim 4, characterized in that: The transmission member includes a driving bevel gear (54) fixed to the output shaft of the rotation driving member (53), and a driven bevel gear (55) fixed to the outer side of the rotating sleeve (51) and meshing with the driving bevel gear (54).

6. The integrated abdominal tumor closed rotary cutting equipment based on pneumatic control according to claim 4, characterized in that: A convex block (56) is formed outward on the outer periphery of the rotating sleeve (51), and a groove (57) cooperating with the convex block (56) is formed inward on the inner wall of the housing (1).

7. An integrated abdominal tumor closed rotary cutting equipment based on pneumatic control according to claim 4, characterized in that: The inflation assembly (6) includes an air pump (61) arranged inside the housing (1). The intake pipe (62) of the air pump (61) penetrates and extends below the bottom cover (15). An abutting ring (63) is fixed to the outer side of the intake pipe (62), and a sealing ring (64) is fixed to the bottom of the abutting ring (63). There is a circle of air outlet holes (65) on the rotating sleeve (51), and a circle of small holes (66) communicating with the air duct (32) is arranged at the right end of the sleeve (2).

8. The integrated abdominal tumor closed rotary cutting equipment based on pneumatic control according to claim 6, characterized in that: Corresponding card strips (8) are arranged on the inner walls of the front half shell (11) and the rear half shell (12). The housings of the rotation driving member (53) and the air pump (61) both form card slots (9) cooperating with the card strips (8) inward.

9. A cutting method for an integrated abdominal tumor closed cutting equipment based on pneumatic control, characterized in that, Including the following steps: The deflated airbag (3) is inserted into the patient's abdominal cavity through the operation hole by the sleeve (2). The air pump (61) pumps external air into the interior of the housing (1). The air enters the space between the sleeve (2) and the cutter tube (4) through the air outlet hole (65), and enters the air duct (32) through the small hole (66). The air duct (32) expands the bladder cloth (33), causing the airbag (3) to expand and the right end opening to open. The jaw part of the grasping forceps (7) is inserted into the sleeve (2) from one end of the housing (1), passes through the airbag (3) and extends into the patient's abdominal cavity. The cut tumor is grasped and dragged into the airbag (3). After the tumor enters the airbag 3, the grasping forceps (7) drags the tumor mass to the incision of the cutter tube 4. The airbag (3) deflates, and the bladder cloth (33) contracts to wrap the tumor. The rotary drive member (53) is activated to rotate the output shaft of the rotary drive member (53). Under the meshing drive of the driving bevel gear (54) and the driven bevel gear (55), the cutter tube (4) can rotate to cut the tumor. After the grasping forceps (7) take out the cut part of the tumor from the housing (1), the grasping forceps 7 are inserted into the airbag (3) again to grasp the tumor mass and drag it to the incision of the cutter tube 4. As the tumor volume decreases, the airbag (3) is continuously deflated to decompress. The airbag (3) wraps the tumor again and is cut by the rotating cutter tube (4) until all the tumors are taken out from the operation opening, and the device is taken out from the surgical opening for subsequent wound suturing work to complete the operation.

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