CN112890919A

CN112890919A - Rotary uterine cutter for gynecological operation

Info

Publication number: CN112890919A
Application number: CN202110186706.1A
Authority: CN
Inventors: 刘敬侠
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-18
Filing date: 2021-02-18
Publication date: 2021-06-04

Abstract

The invention belongs to the field of medical instruments, and particularly relates to a rotary uterine cutter for gynecological operation. Comprises a cutting part shell, a first cutting piece, a second cutting piece, a spiral pushing assembly, a rotary driving assembly and a collecting box; the cutting part shell comprises a first fixed pipe, a first semicircular plate, a fixed rod and an external thread pipe; the diameter of the first semi-circular plate is equal to that of the first fixed pipe, the plane end of the first semi-circular plate is fixedly connected with one end of the first fixed pipe, and the two are communicated to form a group of cavities; the fixing rod is positioned in the cavity. By using the first cutting piece and the second cutting piece which are sleeved with each other and have opposite rotating directions, the cutting position of the device is positioned in the center of the opening, and the cut scraps can enter the cavity through the opening more conveniently; when treating the cutting part and cutting, the cutting point position can not take place to remove or the skew, can not treat the cutting part and form and pull, causes the secondary damage, uses safelyr.

Description

Rotary uterine cutter for gynecological operation

Technical Field

The invention belongs to the field of medical instruments, and particularly relates to a rotary uterine cutter for gynecological operation.

Background

The rotary uterine cutter is a medical cutting instrument for cutting the intrauterine diseased, necrotic and other parts of a patient in gynecology.

When the traditional rotary uterine cutter is used, the parts of the uterus of a patient with diseases, necrosis and the like are firstly cut, and then the cut parts are taken out by the clamping forceps.

Therefore, in the existing operation process, doctors need to continuously cut and pick up diseased and necrotic parts in the bodies of patients, the operation process is long in time and low in working efficiency, and the continuous cutting and picking up in the operation cutting process are not sanitary, so that wound infection of the patients is easily caused.

Disclosure of Invention

In order to solve the problems, the invention provides a rotary uterine cutter for gynecological operation, which comprises a cutting part shell, a first cutting piece, a second cutting piece, a spiral pushing assembly, a rotary driving assembly and a collecting box, wherein the first cutting piece is arranged on the cutting part shell;

the cutting part shell comprises a first fixed pipe, a first semicircular plate, a fixed rod and an external thread pipe; the diameter of the first semi-circular plate is equal to that of the first fixed pipe, the plane end of the first semi-circular plate is fixedly connected with one end of the first fixed pipe, and the two are communicated to form a group of cavities; the fixed rod is positioned in the cavity, the fixed rod is fixedly connected with the first semi-circular plate, and the central axis of the fixed rod is superposed with the central axis of the first fixed pipe; one end of the external threaded pipe penetrates through the inner wall of one end, far away from the first semicircular plate, of the first fixing pipe and is communicated with the cavity;

the collecting box is installed on the external thread pipe in a threaded mode; an opening is formed at the joint of the first fixed pipe and the first semicircular plate;

the first cutting piece and the second cutting piece are mutually sleeved and movably clamped in the first fixed pipe, and the heads of the first cutting piece and the second cutting piece are movably sleeved on the fixed rod;

the spiral pushing assembly is arranged between the first cutting piece and the second cutting piece, one end of the spiral pushing assembly is fixed at the tail part of the second cutting piece, and the other end of the spiral pushing assembly is movably sleeved on the fixed rod;

the rotary driving assembly is fixedly installed at one end, far away from the first semicircular plate, of the first fixing pipe, is in transmission connection with the first cutting piece and the second cutting piece respectively, and is opposite to the rotary driving direction of the first cutting piece and the second cutting piece.

Further, the opening is located one side of the first fixed pipe, and the external thread pipe is located the other side of the first fixed pipe.

Further, the first cutting member comprises a second semicircular plate, a first fixing plate and a second fixing pipe;

a first through hole is formed in the center of the second semicircular plate, the second semicircular plate is movably sleeved on the fixed rod through the first through hole, and the outer wall of the second semicircular plate is movably attached to the inner wall of the first semicircular plate;

the first fixing plate is of an arc-shaped plate structure, the diameters of the first fixing plate, the second semicircular plate and the second fixing pipe are the same, and the central axes of the first fixing plate, the second semicircular plate and the second fixing pipe are overlapped; one end of the first fixing plate is fixedly connected with the plane end of the second semicircular plate, and the other end of the first fixing plate is fixedly connected with the second fixing pipe.

Further, the second cutting part comprises a third semicircular plate, a second fixing plate, a third fixing pipe and a fixing block;

a second through hole is formed in the center of the third semicircular plate, the third semicircular plate is movably sleeved on the fixed rod through the second through hole, and the outer wall of the third semicircular plate is movably attached to the inner wall of the second semicircular plate;

the second fixing plate is of an arc-shaped plate structure, the diameters of the second fixing plate, the third semicircular plate and the third fixing pipe are the same, and the central axes of the second fixing plate, the third semicircular plate and the third fixing pipe are overlapped; one end of the second fixing plate is fixedly connected with the plane end of the third semicircular plate, and the other end of the second fixing plate is fixedly connected with the third fixing pipe;

the fixed block is of a circular plate-shaped structure, the fixed block is arranged in the inner ring of the third fixed pipe, and the central axes of the fixed block and the third fixed pipe are overlapped.

Furthermore, a plurality of groups of first clamping grooves are formed in an annular array at one end of the second fixing pipe, which is far away from the first fixing plate;

and a plurality of groups of second clamping grooves are formed in the end, far away from the second fixing plate, of the third fixing pipe in an annular array.

Furthermore, the central axis of the first clamping groove and the central axis of the second clamping groove coincide with the central axis of the first fixing pipe, and the included angle between the side wall of the two clamping grooves and the bottom surface of the side wall of the two clamping grooves is an obtuse angle.

Furthermore, a first knife edge is arranged at the joint of one side end of the first fixing plate and the outer wall, and a second knife edge is arranged at the joint of the other side end of the second fixing plate and the inner wall;

the end part of the first knife edge is movably attached to the end part of the second knife edge, and the two knife edges are both positioned in the range of the vertical direction of the opening.

Further, the spiral pushing assembly comprises a fourth fixed pipe and a spiral blade;

the central axis of the fourth fixed pipe is superposed with the central axis of the first fixed pipe, one end of the fourth fixed pipe is fixedly connected with the fixed block, the other end of the fourth fixed pipe is fixedly connected with the third semicircular plate, and the inner diameter of the fourth fixed pipe is the same as the diameter of the second through hole;

the helical blade is sleeved on the fourth fixed pipe, and the rotating diameter of the helical blade is smaller than the inner diameter of the first fixed plate and larger than the inner diameter of the second fixed plate.

Further, the rotary driving assembly comprises a shell, a fifth fixed pipe, a sixth fixed pipe, a transmission mechanism and a motor;

one end of the shell is of an open structure, and one end of the open structure of the shell can be fixedly arranged at one end, far away from the first semi-circular plate, of the first fixing pipe;

the fifth fixed pipe is rotatably arranged in the shell through a rotating bearing, the inner diameter and the outer diameter of the fifth fixed pipe are equal to those of the second fixed pipe, and the central axes of the fifth fixed pipe and the second fixed pipe are superposed; a plurality of groups of first clamping blocks are arranged at one end of the fifth fixed pipe facing the open structure of the shell in an annular array, and each group of first clamping blocks can be respectively clamped in one group of first clamping grooves; a first rack is arranged on the outer wall of the other end of the fifth fixed pipe in an annular array;

the sixth fixed pipe is movably clamped in the inner ring of the fifth fixed pipe, the inner diameter and the outer diameter of the sixth fixed pipe are equal to those of the third fixed pipe, and the central axes of the sixth fixed pipe and the third fixed pipe are superposed; a plurality of groups of second clamping blocks are arranged at one end of the sixth fixing pipe facing the open structure of the shell in an annular array, and each group of second clamping blocks can be respectively clamped in one group of second clamping grooves; a second rack is arranged on the outer wall of the other end of the sixth fixed pipe in an annular array;

the motor is arranged at the bottom in the shell, and a fifth gear is sleeved on an output shaft of the motor;

one end of the transmission mechanism is in meshed transmission connection with the fifth gear, and the other end of the transmission mechanism is in meshed transmission connection with the first rack and the second rack respectively.

Further, the rotary shaver further comprises a handle, and the handle is arranged on the shell;

the handle is provided with a contact switch, and the contact switch is electrically connected with the motor.

The invention has the beneficial effects that:

1. by using the first cutting piece and the second cutting piece which are sleeved with each other and have opposite rotating directions, the cutting position of the device is positioned in the center of the opening, and the cut scraps can enter the cavity through the opening more conveniently; when the part to be cut is cut, the cutting point position cannot move or deviate, the part to be cut cannot be pulled, secondary damage is caused, and the use is safer;

2. by arranging the opening at the joint of the first fixed pipe and the first semicircular plate, when the device is used, the part to be cut can be always positioned at the optimal cutting position between the two cutting pieces, and the cutting effect is better;

3. the spiral pushing assembly is arranged between the first cutting piece and the second cutting piece and used for pushing the chips cut by the cutting pieces, and the device does not need to pick up and collect the cut chips when in use, so that the working efficiency is improved;

4. through the axis setting with first draw-in groove and second draw-in groove with the axis coincidence of first fixed pipe, and the lateral wall of two draw-in grooves is the obtuse angle rather than self bottom surface contained angle for when the installation of rotary driving subassembly, its drive end joint is more convenient in first draw-in groove of a plurality of groups and second draw-in groove more easily.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

Fig. 1 is a perspective view showing a rotary cutter according to an embodiment of the present invention;

fig. 2 is a schematic sectional view showing a rotary cutter according to an embodiment of the present invention;

FIG. 3 shows a schematic structural view of a cutting section housing according to an embodiment of the present invention;

FIG. 4 shows a schematic structural view of a first cutting member according to an embodiment of the present invention;

FIG. 5 shows a schematic structural view of a second cutting member according to an embodiment of the present invention;

FIG. 6 is a schematic diagram of a card slot according to an embodiment of the invention;

FIG. 7 shows a schematic view of the knife-edge structure of an embodiment of the present invention;

FIG. 8 shows a schematic structural diagram of a screw propelling component according to an embodiment of the invention;

FIG. 9 is a schematic structural view of a rotary drive assembly according to an embodiment of the present invention;

fig. 10 shows a schematic configuration diagram of a contact switch according to an embodiment of the present invention.

In the figure: 1. a cutting section housing; 101. a cavity; 102. an opening; 2. a first cutting member; 3. a second cutting member; 4. a screw pushing assembly; 5. a rotary drive assembly; 6. a collection box; 7. a handle; 8. a first stationary tube; 9. a first semi-circular plate; 10. fixing the rod; 11. an externally threaded tube; 12. a second semicircular plate; 1201. a first through hole; 13. a first fixing plate; 1301. a first blade edge; 14. a second stationary tube; 1401. a first card slot; 15. a third semicircular plate; 1501. a second through hole; 16. a second fixing plate; 1601. a second knife edge; 17. a third stationary pipe; 1701. a second card slot; 18. a fixed block; 19. a fourth stationary pipe; 20. a helical blade; 21. a housing; 22. a fifth stationary pipe; 23. a rotating bearing; 24. a first clamping block; 25. a first rack; 26. a sixth stationary pipe; 27. a second fixture block; 28. a second rack; 29. a third fixing plate; 30. a turntable bearing; 31. a first rotating lever; 32. a second rotating lever; 33. a first gear; 34. a second gear; 35. a third gear; 36. a fourth gear; 37. a motor; 38. a fifth gear; 39. a contact switch.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The embodiment of the invention provides a rotary uterine cutter for gynecological operation, which comprises a cutting part shell 1, a first cutting piece 2, a second cutting piece 3, a spiral pushing assembly 4, a rotary driving assembly 5 and a collecting box 6, and is exemplarily shown in fig. 1 and 2.

The cutting part housing 1 includes a first fixing tube 8, a first semicircular plate 9, a fixing rod 10, and an external threaded tube 11, as shown in fig. 3; the diameter of the first semi-circular plate 9 is equal to that of the first fixed pipe 8, the plane end of the first semi-circular plate 9 is fixedly connected with one end of the first fixed pipe 8, and the two are communicated with each other to form a group of cavities 101;

the fixing rod 10 is positioned in the cavity 101, the fixing rod 10 is fixedly connected with the first semicircular plate 9, and the central axis of the fixing rod 10 is superposed with the central axis of the first fixing pipe 8; one end of the external thread pipe 11 penetrates through the inner wall of the first fixed pipe 8, which is far away from the first semicircular plate 9, and is communicated with the cavity 101;

the collecting box 6 is installed on the external thread pipe 11 in a threaded manner; the collecting box 6 is used for collecting the scraps cut by the device;

an opening 102 is formed at the joint of the first fixed pipe 8 and the first semicircular plate 9.

Preferably, the opening 102 is located on one side of the first fixed pipe 8, and the external threaded pipe 11 is located on the other side of the first fixed pipe 8.

By providing the opening 102 and the male screw pipe 11 at positions just above and just below the side wall of the first fixed pipe 8, respectively, the device is more convenient when performing cutting, and chips after cutting are more easily discharged to a predetermined position through the male screw pipe 11, which is more convenient in use.

The first cutting part 2 and the second cutting part 3 are mutually sleeved and movably clamped in the first fixed pipe 8, and the heads of the first cutting part 2 and the second cutting part 3 are movably sleeved on the fixed rod 10; the first cutting member 2 and the second cutting member 3 are used for cutting a tape cutting portion at the opening 102;

the spiral pushing assembly 4 is arranged between the first cutting piece 2 and the second cutting piece 3, one end of the spiral pushing assembly 4 is fixed at the tail part of the second cutting piece 3, and the other end of the spiral pushing assembly 4 is movably sleeved on the fixed rod 10; the spiral pushing assembly 4 is used for pushing the chips cut by the first cutting member 2 and the second cutting member 3 into the collecting box 6;

the rotary driving assembly 5 is fixedly arranged at one end, far away from the first semicircular plate 9, of the first fixing pipe 8, the rotary driving assembly 5 is in transmission connection with the first cutting piece 2 and the second cutting piece 3 respectively, and the rotary driving directions of the rotary driving assembly 5 to the first cutting piece 2 and the second cutting piece 3 are opposite; the rotary driving assembly 5 is used for providing rotary power for the first cutting member 2 and the second cutting member 3;

the rotary shaver further comprises a handle 7, and the handle 7 is arranged on the rotary driving assembly 5.

Preferably, the handle 7 is located on the same side of the first stationary tube 8 as the externally threaded tube 11.

Illustratively, in use, the cutting section housing 1 is inserted into a patient's vagina, the opening 102 is aligned with a site to be cut in the patient's body, and the site to be cut is positioned within the opening 102; the rotary driving assembly 5 is started to drive the first cutting member 2 and the second cutting member 3 to rotate relatively, the first cutting member 2 and the second cutting member 3 which rotate relatively cut the part to be cut which is positioned in the opening 102, and the cut debris is pushed to one end, far away from the first semi-circular plate 9, in the first fixed pipe 8 in the process of rotating the spiral pushing assembly 4 and enters the collection box 6 along the external threaded pipe 11; after the cutting of the position to be cut is completed, the rotary driving component 5 is closed to stop driving the first cutting part 2 and the second cutting part 3, the cutting part is taken out of the body of the patient, the collecting box 6 is taken down, the cut scraps are cleaned, meanwhile, the rotary driving component 5 can be taken out of the first fixing pipe 8, the first cutting part 2 and the second cutting part 3 are drawn out and cleaned.

Constitute the cutting portion of the device wholly through cutting portion shell 1, first cutting member 2, second cutting member 3, spiral propelling movement subassembly 4, the device's simple structure, the dismouting is more swift and convenient.

By using the first cutting member 2 and the second cutting member 3 which are sleeved with each other and rotate in opposite directions, the cutting position of the device is located at the center of the opening 102, and the cut scraps can enter the cavity 101 through the opening 102 more conveniently; when treating the cutting part and cutting, the cutting point position can not take place to remove or the skew, can not treat the cutting part and form and pull, causes the secondary damage, uses safelyr.

By arranging the opening 102 at the junction of the first stationary pipe 8 and the first semicircular plate 9, the device can be used with a better cutting effect, since the part to be cut can always be located at the optimal cutting position between the two cutting members.

The heads of the first cutting part 2 and the second cutting part 3 which are mutually sleeved are movably sleeved on the fixing rod 10, so that the cutting parts are more stable in rotation and more convenient to position in installation.

Through setting up spiral propelling movement subassembly 4 between first cutting member 2 and second cutting member 3 for carry out the propelling movement to the piece after the cutting member cutting, the device need not to pick up and collect the piece under the cutting when using, thereby has improved work efficiency.

According to the structure, any movable substance except the device is not arranged between the two cutting pieces in the device, so that the two cutting pieces and the spiral pushing assembly 4 cannot move or sputter substances except the device when rotating, and the using environment is cleaner and tidier.

The first cutting member 2 includes a second half-plate 12, a first fixing plate 13 and a second fixing tube 14, as shown in fig. 4; a first through hole 1201 is formed in the center of the second semicircular plate 12, the second semicircular plate 12 is movably sleeved on the fixed rod 10 through the first through hole 1201, and the outer wall of the second semicircular plate 12 is movably attached to the inner wall of the first semicircular plate 9;

the first fixing plate 13 is of an arc-shaped plate structure, the diameters of the first fixing plate 13, the second semi-circular plate 12 and the second fixing pipe 14 are the same, and the central axes of the first fixing plate 13, the second semi-circular plate 12 and the second fixing pipe 14 are overlapped; one end of the first fixing plate 13 is fixedly connected with the plane end of the second semicircular plate 12, and the other end of the first fixing plate 13 is fixedly connected with the second fixing pipe 14.

The second cutting member 3 comprises a third semicircular plate 15, a second fixing plate 16, a third fixing tube 17 and a fixing block 18, as shown in fig. 5; a second through hole 1501 is formed in the center of the third semicircular plate 15, the third semicircular plate 15 is movably sleeved on the fixed rod 10 through the second through hole 1501, and the outer wall of the third semicircular plate 15 is movably attached to the inner wall of the second semicircular plate 12;

the second fixing plate 16 is of an arc-shaped plate structure, the diameters of the second fixing plate 16, the third semi-circular plate 15 and the third fixing pipe 17 are the same, and the central axes of the second fixing plate 16, the third semi-circular plate 15 and the third fixing pipe 17 are overlapped; one end of the second fixing plate 16 is fixedly connected with the plane end of the third semicircular plate 15, and the other end of the second fixing plate 16 is fixedly connected with the third fixing pipe 17;

the fixing block 18 is a circular plate-shaped structure, the fixing block 18 is arranged in the inner ring of the third fixing pipe 17, and the central axes of the fixing block and the fixing block coincide.

For example, as shown in fig. 6, a plurality of groups of first slots 1401 are disposed in an annular array at one end of the second fixing tube 14 away from the first fixing plate 13; a plurality of groups of second clamping grooves 1701 are formed in the third fixing tube 17 at an end far away from the second fixing plate 16 in an annular array.

Preferably, the central axes of the first clamping groove 1401 and the second clamping groove 1701 are coincident with the central axis of the first fixing pipe 8, and the included angle between the side wall of the two clamping grooves and the bottom surface of the two clamping grooves is an obtuse angle.

The central axes of the first clamping groove 1401 and the second clamping groove 1701 are arranged to coincide with the central axis of the first fixing pipe 8, and the included angles between the side walls of the two clamping grooves and the bottom surface of the two clamping grooves are obtuse angles, so that when the rotary driving component 5 is installed, the driving end of the rotary driving component is more easily clamped in the first clamping grooves 1401 and the second clamping grooves 1701 of a plurality of groups, and the installation is more convenient.

For example, as shown in fig. 7, a first blade 1301 is arranged at a connection position of one side end of the first fixing plate 13 and the outer wall, and a second blade 1601 is arranged at a connection position of the other side end of the second fixing plate 16 and the inner wall; the end part of the first knife edge 1301 and the end part of the second knife edge 1601 can be movably attached, and the two knife edges are located in the range of the opening 102 in the vertical direction.

The screw pushing assembly 4 comprises a fourth fixed pipe 19 and a screw blade 20, as shown in fig. 8; the central axis of the fourth fixed pipe 19 coincides with the central axis of the first fixed pipe 8, one end of the fourth fixed pipe 19 is fixedly connected with the fixed block 18, the other end of the fourth fixed pipe 19 is fixedly connected with the third semicircular plate 15, and the inner diameter of the fourth fixed pipe 19 is the same as the diameter of the second through hole 1501; the helical blade 20 is sleeved on the fourth fixing tube 19, and the rotating diameter of the helical blade 20 is smaller than the inner diameter of the first fixing plate 13 and larger than the inner diameter of the second fixing plate 16.

The rotary driving assembly 5 comprises a housing 21, a fifth fixed pipe 22, a sixth fixed pipe 26, a transmission mechanism and a motor 37, as shown in fig. 9; one end of the shell 21 is an open structure, and one end of the open structure of the shell 21 can be fixedly arranged at one end, far away from the first semicircular plate 9, of the first fixing pipe 8;

the fifth fixed pipe 22 is rotatably installed in the housing 21 through a rotating bearing 23, the inner diameter and the outer diameter of the fifth fixed pipe 22 are equal to the inner diameter and the outer diameter of the second fixed pipe 14, and the central axes of the fifth fixed pipe and the second fixed pipe coincide; a plurality of groups of first clamping blocks 24 are arranged in an annular array at one end of the fifth fixing tube 22 facing the open structure of the shell 21, and each group of first clamping blocks 24 can be respectively clamped in one group of first clamping grooves 1401; a first rack 25 is arranged on the outer wall of the other end of the fifth fixed pipe 22 in an annular array;

the sixth fixed pipe 26 is movably clamped in the inner ring of the fifth fixed pipe 22, the inner diameter and the outer diameter of the sixth fixed pipe 26 are equal to the inner diameter and the outer diameter of the third fixed pipe 17, and the central axes of the sixth fixed pipe and the third fixed pipe coincide; a plurality of groups of second clamping blocks 27 are arranged in an annular array at one end of the sixth fixing tube 26 facing the open structure of the shell 21, and each group of second clamping blocks 27 can be respectively clamped in one group of second clamping grooves 1701; a second rack 28 is arranged on the outer wall of the other end of the sixth fixed pipe 26 in an annular array;

the motor 37 is arranged at the bottom in the shell 21, and a fifth gear 38 is sleeved on an output shaft of the motor 37;

one end of the transmission mechanism is in meshed transmission connection with the fifth gear 38, and the other end of the transmission mechanism is in meshed transmission connection with the first rack 25 and the second rack 28 respectively.

The transmission mechanism comprises a third fixing plate 29, a first rotating rod 31 and a second rotating rod 32; the third fixing plate 29 is arranged in an annular plate-shaped structure, the third fixing plate 29 is arranged inside the shell 21, and central axes of the third fixing plate 29 and the central axes of the third fixing plate are overlapped; a turntable bearing 30 is arranged between the third fixing plate 29 and the sixth fixing pipe 26, one end of the turntable bearing 30 is fixedly connected with the inner ring of the sixth fixing pipe 26, and the other end of the turntable bearing 30 is fixedly connected with the inner ring of the third fixing plate 29;

the first rotating rod 31 and the second rotating rod 32 are movably mounted on the third fixing plate 29 in a penetrating manner; a fourth gear 36 is sleeved at one end of the first rotating rod 31, the fourth gear 36 is in meshed transmission connection with a fifth gear 38, a first gear 33 is sleeved at the other end of the first rotating rod 31, and the first gear 33 is in meshed transmission connection with the second rack 28;

one end of the second rotating rod 32 is sequentially sleeved with a second gear 34 and a third gear 35, the second gear 34 is in meshed transmission connection with the first gear 33, and the third gear 35 is in meshed transmission connection with the first rack 25.

By using the housing 21, the fifth fixed pipe 22, the sixth fixed pipe 26, the transmission mechanism and the motor 37 to form the rotary driving assembly 5, the rotary driving assembly 5 has a compact structure, occupies a small space and is more convenient to install.

The handle 7 is provided with a contact switch 39, as shown in fig. 10; the contact switch 39 is electrically connected to the motor 37.

Illustratively, in use, the cutting section housing 1 is inserted into a patient's vagina, the opening 102 is aligned with a site to be cut in the patient's body, and the site to be cut is positioned within the opening 102; the motor 37 is started to drive the transmission mechanism, the fifth fixed pipe 22 and the sixth fixed pipe 26 are driven to rotate in opposite directions through the transmission mechanism, and the first cutting part 2 and the second cutting part 3 are driven to rotate through the fifth fixed pipe 22 and the sixth fixed pipe 26 which rotate in opposite directions;

during the rotation of the two groups of cutting pieces, the first knife edge 1301 and the second knife edge 1601 at the side end parts are matched with each other and cut the part to be cut, and the cut scraps are pushed to one end, far away from the first semicircular plate 9, in the first fixed pipe 8 during the rotation of the helical blade 20 and enter the collecting box 6 along the external threaded pipe 11; after the cutting of the position to be cut is completed, the rotary driving component 5 is closed to stop driving the first cutting part 2 and the second cutting part 3, the cutting part is taken out of the body of the patient, the collecting box 6 is taken down, the cut scraps are cleaned, meanwhile, the rotary driving component 5 can be taken out of the first fixing pipe 8, the first cutting part 2 and the second cutting part 3 are drawn out and cleaned.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A uterine rotary cutter for gynecological operation is characterized in that: comprises a cutting part shell (1), a first cutting piece (2), a second cutting piece (3), a spiral pushing assembly (4), a rotary driving assembly (5) and a collecting box (6);

the cutting part shell (1) comprises a first fixing pipe (8), a first semicircle plate (9), a fixing rod (10) and an external thread pipe (11); the diameter of the first semi-circular plate (9) is equal to that of the first fixed pipe (8), the plane end of the first semi-circular plate (9) is fixedly connected with one end of the first fixed pipe (8), and the two are communicated with each other to form a group of cavities (101); the fixing rod (10) is positioned in the cavity (101), the fixing rod (10) is fixedly connected with the first semicircular plate (9), and the central axis of the fixing rod (10) is superposed with the central axis of the first fixing pipe (8); one end of the external threaded pipe (11) penetrates through the inner wall of one end, far away from the first semicircular plate (9), of the first fixed pipe (8) and is communicated with the cavity (101);

the collecting box (6) is installed on the external thread pipe (11) in a threaded manner; an opening (102) is formed at the joint of the first fixed pipe (8) and the first semicircular plate (9);

the first cutting piece (2) and the second cutting piece (3) are mutually sleeved and movably clamped in the first fixing pipe (8), and the heads of the first cutting piece (2) and the second cutting piece (3) are movably sleeved on the fixing rod (10);

the spiral pushing assembly (4) is arranged between the first cutting piece (2) and the second cutting piece (3), one end of the spiral pushing assembly (4) is fixed at the tail of the second cutting piece (3), and the other end of the spiral pushing assembly (4) is movably sleeved on the fixing rod (10);

the rotary driving component (5) is fixedly installed at one end, far away from the first semicircular plate (9), of the first fixed pipe (8), the rotary driving component (5) is in transmission connection with the first cutting part (2) and the second cutting part (3) respectively, and the rotary driving direction of the rotary driving component (5) to the first cutting part (2) and the second cutting part (3) is opposite.

2. A rotary uterine cutter for gynecological operations, as claimed in claim 1, characterized in that: the opening (102) is positioned on one side of the first fixed pipe (8), and the external threaded pipe (11) is positioned on the other side of the first fixed pipe (8).

3. A rotary uterine cutter for gynecological operations, as claimed in claim 1, characterized in that: the first cutting piece (2) comprises a second semicircular plate (12), a first fixing plate (13) and a second fixing pipe (14);

a first through hole (1201) is formed in the center of the second semicircular plate (12), the second semicircular plate (12) is movably sleeved on the fixing rod (10) through the first through hole (1201), and the outer wall of the second semicircular plate (12) is movably attached to the inner wall of the first semicircular plate (9);

the first fixing plate (13) is of an arc-shaped plate structure, the diameters of the first fixing plate (13), the second semi-circular plate (12) and the second fixing pipe (14) are the same, and the central axes of the first fixing plate, the second semi-circular plate and the second fixing pipe are overlapped; one end of the first fixing plate (13) is fixedly connected with the plane end of the second semicircular plate (12), and the other end of the first fixing plate (13) is fixedly connected with the second fixing pipe (14).

4. A rotary uterine cutter for gynecological operations, as claimed in claim 3, characterized in that: the second cutting part (3) comprises a third semicircular plate (15), a second fixing plate (16), a third fixing pipe (17) and a fixing block (18);

a second through hole (1501) is formed in the center of the third semicircular plate (15), the third semicircular plate (15) is movably sleeved on the fixing rod (10) through the second through hole (1501), and the outer wall of the third semicircular plate (15) is movably attached to the inner wall of the second semicircular plate (12);

the second fixing plate (16) is of an arc-shaped plate structure, the diameters of the second fixing plate (16), the third semi-circular plate (15) and the third fixing pipe (17) are the same, and the central axes of the second fixing plate, the third semi-circular plate and the third fixing pipe are superposed; one end of the second fixing plate (16) is fixedly connected with the plane end of the third semicircular plate (15), and the other end of the second fixing plate (16) is fixedly connected with the third fixing pipe (17);

the fixing block (18) is of a circular plate-shaped structure, the fixing block (18) is arranged in the inner ring of the third fixing pipe (17), and the central axes of the fixing block and the fixing block coincide.

5. A rotary uterine cutter for gynecological operations, as claimed in claim 4, characterized in that: a plurality of groups of first clamping grooves (1401) are formed in an annular array at one end of the second fixing pipe (14) far away from the first fixing plate (13);

and a plurality of groups of second clamping grooves (1701) are formed in an annular array at one end of the third fixing pipe (17) far away from the second fixing plate (16).

6. A rotary uterine cutter for gynecological operations, as claimed in claim 5, characterized in that: the central axes of the first clamping groove (1401) and the second clamping groove (1701) are coincided with the central axis of the first fixing pipe (8), and the included angle between the side wall of each clamping groove and the bottom surface of each clamping groove is an obtuse angle.

7. A rotary uterine cutter for gynecological operations, as claimed in claim 4, characterized in that: a first knife edge (1301) is arranged at the joint of one side end of the first fixing plate (13) and the outer wall, and a second knife edge (1601) is arranged at the joint of the other side end of the second fixing plate (16) and the inner wall;

the end part of the first knife edge (1301) is movably attached to the end part of the second knife edge (1601), and the two knife edges are located in the vertical direction range of the opening (102).

8. A rotary uterine cutter for gynecological operations, as claimed in claim 4, characterized in that: the spiral pushing assembly (4) comprises a fourth fixed pipe (19) and a spiral blade (20);

the central axis of the fourth fixing pipe (19) is superposed with the central axis of the first fixing pipe (8), one end of the fourth fixing pipe (19) is fixedly connected with the fixing block (18), the other end of the fourth fixing pipe (19) is fixedly connected with the third semicircular plate (15), and the inner diameter of the fourth fixing pipe (19) is the same as the diameter of the second through hole (1501);

helical blade (20) cover is established on fourth fixed pipe (19), helical blade's (20) diameter of rotation is less than the internal diameter of first fixed plate (13), is greater than the internal diameter of second fixed plate (16).

9. A rotary uterine cutter for gynecological operations according to claim 1 or 6, characterized in that: the rotary driving assembly (5) comprises a shell (21), a fifth fixed pipe (22), a sixth fixed pipe (26), a transmission mechanism and a motor (37);

one end of the shell (21) is of an open structure, and one end of the open structure of the shell (21) can be fixedly arranged at one end, far away from the first semicircular plate (9), of the first fixing pipe (8);

the fifth fixed pipe (22) is rotatably installed in the shell (21) through a rotating bearing (23), the inner diameter and the outer diameter of the fifth fixed pipe (22) are equal to those of the second fixed pipe (14), and the central axes of the fifth fixed pipe and the second fixed pipe are coincident; a plurality of groups of first clamping blocks (24) are arranged in an annular array at one end of the fifth fixing pipe (22) facing the open structure of the shell (21), and each group of first clamping blocks (24) can be clamped in one group of first clamping grooves (1401) respectively; a first rack (25) is arranged on the outer wall of the other end of the fifth fixed pipe (22) in an annular array;

the sixth fixed pipe (26) is movably clamped in an inner ring of the fifth fixed pipe (22), the inner diameter and the outer diameter of the sixth fixed pipe (26) are equal to those of the third fixed pipe (17), and the central axes of the sixth fixed pipe and the third fixed pipe coincide; a plurality of groups of second clamping blocks (27) are arranged in an annular array at one end of the sixth fixing pipe (26) facing the open structure of the shell (21), and each group of second clamping blocks (27) can be clamped in one group of second clamping grooves (1701) respectively; a second rack (28) is arranged on the outer wall of the other end of the sixth fixed pipe (26) in an annular array;

the motor (37) is arranged at the bottom in the shell (21), and a fifth gear (38) is sleeved on an output shaft of the motor (37);

one end of the transmission mechanism is in meshed transmission connection with the fifth gear (38), and the other end of the transmission mechanism is in meshed transmission connection with the first rack (25) and the second rack (28) respectively.

10. A rotary uterine cutter for gynecological procedures, as claimed in claim 9, characterized in that: the rotary cutter also comprises a handle (7), and the handle (7) is arranged on the shell (21);

the handle (7) is provided with a contact switch (39), and the contact switch (39) is electrically connected with the motor (37).