Device for automatically washing milling cutter in neurosurgery craniotomy

Abstract

The invention relates to an automatic milling cutter flushing device in neurosurgery craniotomy, and belongs to the technical field of medical instruments, the automatic milling cutter flushing device comprises a milling cutter driving device, a milling cutter body, a cleaning liquid input pipe, two first mounting rings, two first connecting rods and two second mounting rings, and the outer wall of the milling cutter driving device is provided with a cleaning structure; and a mounting structure is arranged on the outer wall of the milling cutter driving equipment. According to the automatic milling cutter washing device in the neurosurgery craniotomy, a head cleaning tube is fixed to the outer side of milling cutter driving equipment under the action of a first mounting ring, a first connecting rod and a second mounting ring, and the head cleaning tube and a milling cutter cleaning tube are controlled through a first switch valve and a second switch valve correspondingly; the first nozzle is used for cleaning the craniotomy position, the second nozzle is used for cleaning the outer wall of the milling cutter body, the cleanliness of the milling cutter body is improved, the cutting resistance of the milling cutter body is greatly reduced, and therefore the craniotomy efficiency is improved, and the craniotomy risk is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of medical instruments, in particular to an automatic flushing milling cutter device in neurosurgery craniotomy. Background Art

[0002] The automatic irrigation milling cutter device used in neurosurgery craniotomy is a precision instrument designed specifically for neurosurgery. It integrates irrigation and cutting functions and can automatically spray sterile saline or other irrigation fluids while the milling cutter is cutting the skull to remove bone chips and blood from the blade, keep the blade clean and sharp, and avoid a decrease in cutting efficiency due to bone chip accumulation. At the same time, the irrigation fluid can also cool the blade and the surgical area to reduce tissue damage caused by high temperature. The device is usually used in conjunction with a surgical microscope and a neuronavigation system to improve the accuracy and safety of the operation. Its use not only improves surgical efficiency and reduces operation time, but also reduces the risk of postoperative infection and complications by maintaining a clear surgical field. It is an indispensable and important tool in modern neurosurgery.

[0003] At present, when the milling cutter device is in use, sterile saline or other flushing fluid is continuously sprayed near the milling cutter through a nozzle. In this way, the bone chips and blood generated can be immediately washed away while the milling cutter is cutting the skull, which can reduce bleeding and congestion in the surgical field and provide better visualization, so that the surgeon can more accurately judge the effect of cutting depth and range. However, when the milling cutter is working, the bone chips and blood accumulated on the outer wall will block the surgical field of view, and the bone chips and blood on the milling cutter will increase the cutting resistance of the milling cutter and reduce the cutting efficiency. At present, when cleaning the milling cutter, the skull cutting needs to be stopped and then wiped with a sterile tool, resulting in a long pause time during craniotomy, which reduces the smoothness of the operation and increases the time of the operation. Therefore, an automatic flushing milling cutter device for neurosurgery craniotomy is proposed. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides an automatic milling cutter flushing device during neurosurgery craniotomy, which has the advantages of improving the efficiency of milling cutter cleaning and increasing the smoothness of the operation. It solves the problem that the head cutting needs to be stopped when cleaning the milling cutter, and then wiped with a sterile tool, resulting in a long pause time during craniotomy, reducing the smoothness of the operation and increasing the time of the operation.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: an automatic flushing milling cutter device in neurosurgery craniotomy, comprising a milling cutter drive device, a milling cutter body, a cleaning liquid input tube, two first mounting rings, two first connecting rods and two second mounting rings, the outer wall of the milling cutter drive device is provided with a cleaning structure, and the outer wall of the milling cutter drive device is provided with a mounting structure;

[0006] The cleaning structure includes a head cleaning tube fixedly mounted on the outer peripheral wall of a cleaning liquid input tube, three first nozzles are fixedly mounted on the outer peripheral wall of the head cleaning tube, a first switch valve is fixedly mounted on the outer peripheral wall of the head cleaning tube, an extension pipe is fixedly mounted on the bottom of the cleaning liquid input tube, a piston is fixedly mounted on the bottom of the extension pipe, a second switch valve is fixedly mounted on the outer peripheral wall of the extension pipe, a milling cutter cleaning tube is slidably connected to the outer peripheral wall of the piston, and three second nozzles are fixedly mounted on the outer peripheral wall of the milling cutter cleaning tube;

[0007] The mounting structure includes a mounting seat fixedly mounted on the outer peripheral wall of the milling cutter cleaning tube, an adjusting rod fixedly mounted on the top outer wall of the mounting seat, a limiting ring fixedly mounted on the outer peripheral wall of the adjusting rod, a limiting seat fixedly mounted on the outer peripheral wall of the second mounting ring at the bottom, a fixing ring slidably connected to the outer peripheral wall of the cleaning liquid input tube, a fixing rod fixedly mounted on the outer peripheral wall of the fixing ring, a connecting ring fixedly mounted on the side of the fixing rod away from the fixing ring, a threaded ring slidably connected to the top inner wall of the connecting ring, two connecting shafts fixedly mounted on the bottom outer wall of the threaded ring, and a limiting ball fixedly mounted on the bottom outer wall of the connecting shaft.

[0008] Furthermore, the skull cleaning tube is located on the left front side of the milling cutter cleaning tube, the skull cleaning tube and the milling cutter cleaning tube are installed in a staggered manner, and the second nozzle and the milling cutter body are located in the same vertical plane.

[0009] Furthermore, the extension pipe is located inside the milling cutter cleaning tube, the three first nozzles are equidistantly distributed on the outer peripheral wall of the skull cleaning tube, the three second nozzles are equidistantly distributed on the outer peripheral wall of the milling cutter cleaning tube, and the height to which the top second nozzle can move upward is the same as the height of the top of the cutting point of the milling cutter body.

[0010] Furthermore, a through hole is provided inside the limit seat, the adjusting rod is slidably connected inside the through hole and is adapted in size, and a threaded groove is provided on the outer peripheral wall of the adjusting rod located above the limit seat.

[0011] Furthermore, the adjusting rod is slidably connected to the inner circumferential wall of the connecting ring and is threadedly connected to the inner circumferential wall of the threaded ring. The threaded ring is threadedly connected to the threaded groove opened on the adjusting rod. The inner diameter of the connecting ring is the same as that of the threaded ring. The limiting seat is located between the limiting ring and the connecting ring.

[0012] Furthermore, an annular groove is provided on the top of the connecting ring, an adjusting groove is provided inside the connecting ring, the threaded ring is rotatably connected inside the annular groove and is adapted in size, and the connecting shaft and the limiting ball are both slidably connected inside the adjusting groove and are adapted in size.

[0013] Furthermore, the fixing ring is located between the two second mounting rings.

[0014] Furthermore, the diameter of the milling cutter cleaning tube is the same as the diameter of the cleaning liquid input tube, and the diameter of the skull cleaning tube is smaller than the diameter of the cleaning liquid input tube.

[0015] Further, the milling cutter body is installed on the bottom inner wall of the milling cutter drive device, the cleaning fluid inlet pipe is located on the right side of the milling cutter drive device, the first mounting ring is fixedly installed on the outer peripheral wall of the milling cutter body, the first connecting rod is fixedly installed on the outer peripheral wall of the first mounting ring, the second mounting ring is fixedly installed on the outer wall of the first connecting rod away from the first mounting ring, and the cleaning fluid inlet pipe is fixedly installed on the inner peripheral wall of the second mounting ring.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0017] 1. The device for automatically flushing the milling cutter during neurosurgery craniotomy fixes the skull cleaning tube on the outside of the milling cutter driving device through the first mounting ring, the first connecting rod and the second mounting ring, and controls the skull cleaning tube and the milling cutter cleaning tube respectively through the first switch valve and the second switch valve. The first nozzle cleans the skull opening, and the second nozzle cleans the outer wall of the milling cutter body, thereby improving the cleanliness of the milling cutter body and greatly reducing the resistance of the milling cutter body during cutting, thereby improving the efficiency of the craniotomy and reducing the risk of craniotomy.

[0018] 2. The automatic flushing milling cutter device during neurosurgery craniotomy can quickly install and connect the adjusting rod through the functions of the fixing ring, the fixing rod, the connecting ring, the threaded ring, the connecting shaft and the limiting ball, so that the milling cutter cleaning tube can be installed on the outer wall of the extension pipe, which is convenient for the rapid installation of the milling cutter cleaning tube, improves the cleaning efficiency of the milling cutter body, reduces the long pauses caused by the cleaning of the milling cutter body, and improves the fluency of the operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention;

[0020] Figure 2 For the present invention Figure 1 Schematic diagram of some structures;

[0021] Figure 3 It is a schematic diagram of the internal cross-sectional structure of the connecting ring of the present invention.

[0022] Figure 4 It is a schematic structural diagram of the first mounting ring, the first connecting rod and the second mounting ring of the present invention.

[0023] In the figure: 1. milling cutter drive device; 2. milling cutter body; 3. cleaning liquid input pipe; 4. first mounting ring; 5. first connecting rod; 6. second mounting ring; 7. head cleaning pipe; 8. first nozzle; 9. first switch valve; 10. extension pipe; 11. piston; 12. second switch valve; 13. milling cutter cleaning pipe; 14. second nozzle; 15. mounting seat; 16. adjusting rod; 17. limit ring; 18. limit seat; 19. fixing ring; 20. fixing rod; 21. connecting ring; 22. threaded ring; 23. connecting shaft; 24. limit ball. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] See also Figures 1 to 4 In this embodiment, an automatic milling cutter flushing device during neurosurgery craniotomy includes a milling cutter drive device 1, a milling cutter body 2, a cleaning liquid input tube 3, two first mounting rings 4, two first connecting rods 5 and two second mounting rings 6. The outer wall of the milling cutter drive device 1 is provided with a cleaning structure, and the outer wall of the milling cutter drive device 1 is provided with a mounting structure.

[0026] The milling cutter body 2 is installed on the bottom inner wall of the milling cutter drive device 1, the cleaning liquid inlet pipe 3 is located on the right side of the milling cutter drive device 1, the first mounting ring 4 is fixedly installed on the outer peripheral wall of the milling cutter body 2, the first connecting rod 5 is fixedly installed on the outer peripheral wall of the first mounting ring 4, the second mounting ring 6 is fixedly installed on the outer wall of the first connecting rod 5 away from the first mounting ring 4, and the cleaning liquid inlet pipe 3 is fixedly installed on the inner peripheral wall of the second mounting ring 6.

[0027] The cleaning structure includes a skull cleaning tube 7 fixedly installed on the outer peripheral wall of the cleaning liquid input tube 3, three first nozzles 8 are fixedly installed on the outer peripheral wall of the skull cleaning tube 7, a first switch valve 9 is fixedly installed on the outer peripheral wall of the skull cleaning tube 7, an extension pipe 10 is fixedly installed at the bottom of the cleaning liquid input tube 3, a piston 11 is fixedly installed at the bottom of the extension pipe 10, a second switch valve 12 is fixedly installed on the outer peripheral wall of the extension pipe 10, a milling cutter cleaning tube 13 is slidably connected to the outer peripheral wall of the piston 11, the diameter of the milling cutter cleaning tube 13 is the same as the diameter of the cleaning liquid input tube 3, the diameter of the skull cleaning tube 7 is smaller than the diameter of the cleaning liquid input tube 3, and three second nozzles 14 are fixedly installed on the outer peripheral wall of the milling cutter cleaning tube 13.

[0028] The skull cleaning tube 7 is located on the left front side of the milling cutter cleaning tube 13. The skull cleaning tube 7 and the milling cutter cleaning tube 13 are installed in an offset manner. The second nozzle 14 and the milling cutter body 2 are located in the same vertical plane. The extension pipe 10 is located inside the milling cutter cleaning tube 13. The three first nozzles 8 are equidistantly distributed on the outer peripheral wall of the skull cleaning tube 7. The three second nozzles 14 are equidistantly distributed on the outer peripheral wall of the milling cutter cleaning tube 13. The height to which the top second nozzle 14 can move upward is the same as the height of the top of the cutting point of the milling cutter body 2.

[0029] The mounting structure includes a mounting seat 15 fixedly mounted on the outer peripheral wall of the milling cutter cleaning pipe 13, an adjusting rod 16 is fixedly mounted on the top outer wall of the mounting seat 15, a limiting ring 17 is fixedly mounted on the outer peripheral wall of the adjusting rod 16, a limiting seat 18 is fixedly mounted on the outer peripheral wall of the bottom second mounting ring 6, a through hole is provided inside the limiting seat 18, the adjusting rod 16 is slidably connected inside the through hole and the size is adapted, a threaded groove is provided on the outer peripheral wall of the adjusting rod 16 located above the limiting seat 18, a fixing ring 19 is slidably connected to the outer peripheral wall of the cleaning liquid input pipe 3, the fixing ring 19 is located between the two second mounting rings 6, a fixing rod 20 is fixedly mounted on the outer peripheral wall of the fixing ring 19, a connecting ring 21 is fixedly mounted on the side of the fixing rod 20 away from the fixing ring 19, and a threaded ring 22 is slidably connected to the top inner wall of the connecting ring 21.

[0030] The adjusting rod 16 is slidably connected to the inner circumferential wall of the connecting ring 21 and is threadedly connected to the inner circumferential wall of the threaded ring 22. The threaded ring 22 is threadedly connected to the threaded groove opened in the adjusting rod 16. The inner diameters of the connecting ring 21 and the threaded ring 22 are the same. The limiting seat 18 is located between the limiting ring 17 and the connecting ring 21. Two connecting shafts 23 are fixedly installed on the bottom outer wall of the threaded ring 22. A limiting ball 24 is fixedly installed on the bottom outer wall of the connecting shaft 23. An annular groove is opened on the top of the connecting ring 21, and an adjusting groove is opened inside the connecting ring 21. The threaded ring 22 is rotatably connected to the inside of the annular groove and the size is adapted. The connecting shaft 23 and the limiting ball 24 are both slidably connected to the inside of the adjusting groove and the size is adapted.

[0031] In this embodiment, a flushing pump is installed at one end of the cleaning liquid inlet pipe 3 away from the extension pipe 10, and the flushing pump provides power for the flushing liquid and delivers the liquid to the surgical area at a certain pressure.

[0032] In this embodiment, the outer peripheral wall of the threaded ring 22 has a certain friction force, and the medical staff only needs to rotate the threaded ring 22 by hand without using any tools.

[0033] In this embodiment, the first switch valve 9 and the second switch valve 12 are used to control the skull cleaning pipe 7 and the milling cutter cleaning pipe 13 respectively.

[0034] The working principle of the above embodiment is:

[0035] First, the milling cutter driving device 1 is used to drive the milling cutter body 2 to rotate and cut the patient's skull. Then, the cleaning liquid is input into the skull cleaning tube 7 through the cleaning liquid input pipe 3 and sprayed out through the first nozzle 8. At this time, the sprayed liquid cleans the cutting site. When the bone chips, blood and the temperature caused by friction accumulated on the outer wall of the milling cutter body 2 are high, the milling cutter cleaning tube 13 is taken out and sleeved on the outer wall of the extension pipe 10. At this time, the adjusting rod 16 will pass through the interior of the limit seat 18 and extend upward. When the adjusting rod 16 moves to the interior of the threaded ring 22, the threaded ring 22 is screwed to make it threadedly connected with the adjusting rod 16. At this time, the work of the milling cutter cleaning tube 13 is completed. At the same time, the first switch valve 9 is closed and the second switch valve 12 is opened. At this time, the cleaning liquid is input into the interior of the milling cutter cleaning tube 13 and sprayed out through the second nozzle 14. At this time, the cleaning liquid cleans and cools the outer wall of the milling cutter body 2.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for automatically flushing a milling cutter during a neurosurgery craniotomy, comprising a milling cutter drive device (1), a milling cutter body (2), a cleaning liquid input tube (3), two first mounting rings (4), two first connecting rods (5) and two second mounting rings (6), characterized in that: The outer wall of the milling cutter drive device (1) is provided with a cleaning structure, and the outer wall of the milling cutter drive device (1) is provided with a mounting structure; The cleaning structure comprises a skull cleaning pipe (7) fixedly mounted on the outer peripheral wall of a cleaning liquid input pipe (3), three first nozzles (8) being fixedly mounted on the outer peripheral wall of the skull cleaning pipe (7), a first switch valve (9) being fixedly mounted on the outer peripheral wall of the skull cleaning pipe (7), an extension pipe (10) being fixedly mounted on the bottom of the cleaning liquid input pipe (3), a piston (11) being fixedly mounted on the bottom of the extension pipe (10), a second switch valve (12) being fixedly mounted on the outer peripheral wall of the extension pipe (10), a milling cutter cleaning pipe (13) being slidably connected to the outer peripheral wall of the piston (11), and three second nozzles (14) being fixedly mounted on the outer peripheral wall of the milling cutter cleaning pipe (13); The mounting structure comprises a mounting seat (15) fixedly mounted on the outer peripheral wall of the milling cutter cleaning pipe (13); an adjusting rod (16) is fixedly mounted on the top outer wall of the mounting seat (15); a limiting ring (17) is fixedly mounted on the outer peripheral wall of the adjusting rod (16); a limiting seat (18) is fixedly mounted on the outer peripheral wall of the second mounting ring (6) at the bottom; a fixing ring (19) is slidably connected to the outer peripheral wall of the cleaning liquid input pipe (3); a fixing rod (20) is fixedly mounted on the outer peripheral wall of the fixing ring (19); a connecting ring (21) is fixedly mounted on the side of the fixing rod (20) away from the fixing ring (19); a threaded ring (22) is slidably connected to the top inner wall of the connecting ring (21); two connecting shafts (23) are fixedly mounted on the bottom outer wall of the threaded ring (22); and a limiting ball (24) is fixedly mounted on the bottom outer wall of the connecting shaft (23).

2. The automatic milling cutter flushing device for neurosurgery craniotomy according to claim 1, characterized in that: The skull cleaning tube (7) is located on the left front side of the milling cutter cleaning tube (13), the skull cleaning tube (7) and the milling cutter cleaning tube (13) are installed in an offset manner, and the second nozzle (14) and the milling cutter body (2) are located in the same vertical plane.

3. The automatic milling cutter irrigation device for neurosurgery craniotomy according to claim 1, characterized in that: The extension pipe (10) is located inside the milling cutter cleaning tube (13), the three first nozzles (8) are evenly distributed on the outer peripheral wall of the skull cleaning tube (7), the three second nozzles (14) are evenly distributed on the outer peripheral wall of the milling cutter cleaning tube (13), and the height to which the top second nozzle (14) can move upward is the same as the height of the top of the cutting point of the milling cutter body (2).

4. The automatic milling cutter irrigation device for neurosurgery craniotomy according to claim 1, characterized in that: The limiting seat (18) has a through hole inside, the adjusting rod (16) is slidably connected inside the through hole and has a matching size, and the outer peripheral wall of the adjusting rod (16) located above the limiting seat (18) has a threaded groove.

5. The automatic milling cutter irrigation device for neurosurgery craniotomy according to claim 4, characterized in that: The adjusting rod (16) is slidably connected to the inner circumferential wall of the connecting ring (21) and is threadedly connected to the inner circumferential wall of the threaded ring (22); the threaded ring (22) is threadedly connected to the thread groove provided on the adjusting rod (16); the inner diameters of the connecting ring (21) and the threaded ring (22) are the same; and the limiting seat (18) is located between the limiting ring (17) and the connecting ring (21).

6. The automatic milling cutter irrigation device for neurosurgery craniotomy according to claim 1, characterized in that: The top of the connecting ring (21) is provided with an annular groove, the interior of the connecting ring (21) is provided with an adjusting groove, the threaded ring (22) is rotatably connected inside the annular groove and is of a size that matches the threaded ring, and the connecting shaft (23) and the limiting ball (24) are both slidably connected inside the adjusting groove and are of a size that matches the threaded ring (22).

7. The automatic milling cutter irrigation device for neurosurgery craniotomy according to claim 1, characterized in that: The fixing ring (19) is located between the two second mounting rings (6).

8. The automatic milling cutter irrigation device for neurosurgery craniotomy according to claim 1, characterized in that: The diameter of the milling cutter cleaning tube (13) is the same as the diameter of the cleaning liquid input tube (3), and the diameter of the skull cleaning tube (7) is smaller than the diameter of the cleaning liquid input tube (3).

9. The automatic milling cutter irrigation device for neurosurgery craniotomy according to claim 1, characterized in that: The milling cutter body (2) is mounted on the bottom inner wall of the milling cutter drive device (1); the cleaning liquid inlet pipe (3) is located on the right side of the milling cutter drive device (1); the first mounting ring (4) is fixedly mounted on the outer peripheral wall of the milling cutter body (2); the first connecting rod (5) is fixedly mounted on the outer peripheral wall of the first mounting ring (4); the second mounting ring (6) is fixedly mounted on the outer wall of the first connecting rod (5) away from the first mounting ring (4); and the cleaning liquid inlet pipe (3) is fixedly mounted on the inner peripheral wall of the second mounting ring (6).

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