Minimally invasive rotary cutter for pulmonary nodules

Abstract

The invention discloses a pulmonary nodule minimally invasive rotary cutter, and belongs to the technical field of pulmonary nodule operation devices. Comprising a rotating pipe, an arc-shaped cutter is arranged at one end of the rotating pipe, one end of the arc-shaped cutter is fixed to the rotating pipe, an end arc-shaped groove is formed in the other end of the arc-shaped cutter, an inner wall arc-shaped groove is formed in the portion, close to the end arc-shaped groove, of the inner wall of the arc-shaped cutter, and the end arc-shaped groove is communicated with the inner wall arc-shaped groove. The projections of the connecting lines of the two ends of the end arc-shaped grooves and the projections of the connecting lines of the two ends of the inner wall arc-shaped grooves in the vertical direction coincide, the projections of the connecting lines and the central axis of the rotating pipe are located in the same plane, wire passing holes are formed in the two ends of the end arc-shaped grooves and penetrate through the arc-shaped cutters and the rotating pipe, and cutting wires are arranged in the wire passing holes. The two ends of the cutting wire penetrate through the two wire passing holes correspondingly and penetrate out of the other end of the rotating pipe, and the two ends of the cutting wire are detachably connected to the outer sides of the ends of the rotating pipe. The technical scheme is used for improving the pulmonary nodule operation effect and reducing postoperative trauma.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of lung nodule surgery devices, and particularly relates to a lung nodule minimally invasive rotary cutter. BACKGROUND

[0002] With the rapid development of medical technology, the treatment of lung cancer presents a diversified development trend. In addition to conventional surgery, various minimally invasive interventional treatment methods such as thermal ablation technology (including microwave ablation and radiofrequency ablation), irreversible electroporation therapy and transvascular interventional embolization have been applied in clinical practice. However, lobectomy is still the most commonly used treatment method, and video-assisted thoracic surgery (VATS) is gradually becoming the preferred solution to replace traditional open surgery due to its small trauma.

[0003] It should be particularly pointed out that although the VATS surgery only needs to make a small incision on the body surface, the range of lung tissue resection is not significantly different from that of traditional surgery. This large range of resection often causes significant postoperative decline in lung function, which is manifested as reduced exercise tolerance, and in severe cases, patients may even experience shortness of breath and other discomforts during daily activities. Thanks to the popularization and application of low-dose CT screening technology, the detection rate of early lung cancer has increased significantly, and statistics show that about 60% of diagnosed cases are stage I patients with tumor diameters of less than 3cm. In view of this situation, the satisfaction of patients with VATS surgery continues to decline, and therefore, there is an urgent need to develop a lung nodule surgery device that can accurately resect lesions while maximizing the preservation of lung function, similar to the widely used minimally invasive rotary cutting system for breast disease treatment. Based on this, a lung nodule minimally invasive rotary cutter is proposed. SUMMARY

[0004] Therefore, the purpose of the present application is to provide a lung nodule minimally invasive rotary cutter to improve the surgical effect of lung nodules and reduce postoperative trauma.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: The application discloses a lung nodule minimally invasive rotary cutter, which comprises a rotary tube, an arc-shaped cutter is arranged at one end of the rotary tube, one end of the arc-shaped cutter is fixed to the rotary tube, an end arc-shaped groove is arranged at the other end of the arc-shaped cutter, an inner wall arc-shaped groove is arranged on the inner wall of the arc-shaped cutter close to the end arc-shaped groove, the end arc-shaped groove and the inner wall arc-shaped groove are communicated, the connecting line of the two ends of the end arc-shaped groove and the inner wall arc-shaped groove is overlapped in the vertical projection, and the connecting line is located in the same plane as the central axis of the rotary tube, the two ends of the end arc-shaped groove are provided with wire passing holes, the wire passing holes are arranged in the arc-shaped cutter and the rotary tube, and the wire passing holes are arranged in the length direction of the arc-shaped cutter and the rotary tube, a cutting wire is arranged in the wire passing holes, the two ends of the cutting wire pass through the two wire passing holes respectively, and the two ends of the cutting wire pass out of the other end of the rotary tube, the two ends of the cutting wire are detachably connected to the outer side of the end of the rotary tube, a shell is arranged on the outer side of the rotary tube, the rotary tube is rotationally connected to the middle part of the shell, and the two ends of the rotary tube are located outside the shell, a driving element is arranged in the shell, a driving bevel gear is arranged on the output end of the driving element, a first driven bevel gear is arranged on the rotary tube, and the driving bevel gear and the first driven bevel gear are arranged in meshing mode.

[0006] Further, a sleeve is arranged on the rotary tube, one end of the sleeve is located in the shell, the other end of the sleeve passes out of the shell and is arranged close to the passing-out end of the cutting wire, the outer surface of the sleeve is rotationally connected to the shell, a second driven bevel gear is arranged on the part of the sleeve located in the shell, the first driven bevel gear and the second driven bevel gear are arranged in opposite mode, a threaded sleeve is arranged on the outer surface of the end of the rotary tube away from the arc-shaped cutter, the threaded sleeve is threadedly connected to the rotary tube, the passing-out end of the cutting wire is detachably connected to the end of the threaded sleeve, a limiting cylinder is arranged on one end of the threaded sleeve close to the end of the sleeve, the limiting cylinder is arranged on the outside of the sleeve in sleeving mode, a plurality of first blocking strips are circumferentially arranged on the inner side of the limiting cylinder, a plurality of second blocking strips are circumferentially arranged on the outer surface of the sleeve, the plurality of first blocking strips and the plurality of second blocking strips are arranged in contact mode, a translation limiting assembly is arranged in the shell, the translation limiting assembly is used for driving the driving bevel gear to move vertically, thereby controlling the meshing of the driving bevel gear with the first driven bevel gear or the second driven bevel gear, and when the driving bevel gear is meshed with the second driven bevel gear, the translation limiting assembly limits the rotation of the rotary tube.

[0007] Further, a connecting ring is arranged on the end of the threaded sleeve, the end of the cutting wire passes through the connecting ring, and a clamping block is arranged on the end of the cutting wire.

[0008] Further, the translation limiting assembly comprises a translation assembly and a limiting assembly, the translation assembly comprises sliding rods arranged on opposite sides of the driving element, one end of the sliding rod is fixed on the driving element, the other end of the sliding rod penetrates out of the shell and is slidingly connected to the shell, the limiting assembly comprises a connecting plate arranged on the driving element, one end of the connecting plate is fixed on the driving element, the other end of the connecting plate is provided with a limiting rod, a plurality of limiting strips are arranged on the rotating pipe between the first driven bevel gear and the second driven bevel gear, the limiting strips are arranged close to the second driven bevel gear, and a mounting spacing is arranged between the limiting strips and the first driven bevel gear.

[0009] Further, the shell is provided with a perspective window, and the perspective window is arranged opposite to the first driven bevel gear and the second driven bevel gear.

[0010] Further, symmetrically arranged sliding grooves are arranged on the outer surface of the driving element, and symmetrically arranged sliding rails are arranged on the inner wall of the shell, and the sliding rails are slidingly connected in the sliding grooves.

[0011] Further, end plates are arranged on one end of the sliding rods outside the shell, the end plates are fixed on the sliding rods, springs are sleeved on the sliding rods, and two ends of the springs are respectively fixed on the end plates and the hand-held part, and the springs are used to maintain the meshing contact state of the driving bevel gear and the first driven bevel gear.

[0012] Further, the sleeve and the rotating pipe are rotatably connected to the shell through the first bearing and the second bearing respectively.

[0013] The beneficial effects of the present application are as follows: In the technical solution, the cutting wire is stored in the end arc-shaped groove in the initial state, that is, does not interfere with the cutting operation of the arc-shaped knife, when the arc-shaped knife is cut to the preset depth, the operation of straightening the cutting wire is performed to cut the root of the columnar tissue, and the complete cutting of the pulmonary nodule is completed, the cutting method can completely cut the pulmonary nodule, ensures the cutting effect, and has smaller trauma and better cutting effect compared with the traditional surgical cutting.

[0014] Other advantages, objects and features of the present application will be explained in the following description, and will be apparent to those skilled in the art to some extent, or can be taught by those skilled in the art from the practice of the present application. The objects and other advantages of the present application can be achieved and obtained by the following description. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to make the objects, technical solutions and beneficial effects of the present application clearer, the present application provides the following drawings for description: Figure 1It is a three-dimensional schematic view of the lung nodule minimally invasive rotary cutter in the application; Figure 2 It is a schematic view of the internal section of the lung nodule minimally invasive rotary cutter in the application; Figure 3 It is a schematic view of the arc-shaped cutter of the lung nodule minimally invasive rotary cutter in the application; Figure 4 It is a three-dimensional schematic view of the internal section of the lung nodule minimally invasive rotary cutter in the application; Figure 5 It is a schematic view of the shell of the lung nodule minimally invasive rotary cutter in the application; Figure 6 It is a three-dimensional schematic view of the thread sleeve and the limiting cylinder of the lung nodule minimally invasive rotary cutter in the application; Figure 7 It is a three-dimensional schematic view of the internal components of the lung nodule minimally invasive rotary cutter in the application.

[0016] The marks in the drawings are as follows: 1, mounting part; 2, sleeve part; 3, rotating tube; 4, arc-shaped cutter; 5, end arc-shaped groove; 6, inner wall arc-shaped groove; 7, cutting wire; 8, hand-held part; 9, driving element; 10, driving bevel gear; 11, first bearing; 12, first driven bevel gear; 13, sleeve; 14, second driven bevel gear; 15, second bearing; 16, second stop bar; 17, thread sleeve; 18, limiting cylinder; 19, first stop bar; 20, connecting ring; 21, sliding rod; 22, spring; 23, sliding rail; 24, clamping block; 25, end plate; 26, connecting plate; 27, limiting rod; 28, limiting bar; 29, perspective window. DETAILED DESCRIPTION

[0017] As Figures 1-7As shown, a lung nodule minimally invasive rotary cutter includes a rotating tube 3, one end of the rotating tube 3 is provided with an arc-shaped knife 4, the structure of the arc-shaped knife 4 can be set according to the actual situation, in this specific embodiment, the arc-shaped knife 4 includes a hollow C-shaped part, the structure of the C-shaped part can be obtained by cutting a notch on the hollow columnar structure, therefore, the C-shaped part has two cutting surfaces, the cutting part (thin thickness, can cut tissue) is arranged on one cutting surface or both cutting surfaces of the C-shaped part, the specific structure of the arc-shaped knife 4 in the technical solution can be obtained; one end of the arc-shaped knife 4 is fixed on the rotating tube 3, the other end of the arc-shaped knife 4 is provided with an end arc-shaped groove 5, an inner wall arc-shaped groove 6 is arranged on the inner wall of the arc-shaped knife 4 close to the end arc-shaped groove 5, the end arc-shaped groove 5 and the inner wall arc-shaped groove 6 are communicated, the connecting line of the two ends of the end arc-shaped groove 5 and the inner wall arc-shaped groove 6 is overlapped in the vertical projection, and both are located in the same plane with the central axis of the rotating tube 3, the two ends of the end arc-shaped groove 5 are both provided with a wire passing hole, the wire passing hole is arranged in the interior of the arc-shaped knife 4 and the rotating tube 3, and is arranged penetratingly along the length direction of the arc-shaped knife 4 and the rotating tube 3, and a cutting wire 7 (a small diameter steel wire) is arranged in the wire passing hole, the two ends of the cutting wire 7 pass through the two wire passing holes respectively, and are drawn out from the other end of the rotating tube 3, the two ends of the cutting wire 7 are detachably connected to the outer side of the end of the rotating tube 3, a shell is sleeved on the outer side of the rotating tube 3, the rotating tube 3 is rotationally connected to the middle part of the shell, and the two ends of the rotating tube 3 are located outside the shell, a driving element 9 (an electric motor or a micro rotary motor) is arranged in the interior of the shell, a driving bevel gear 10 is arranged on the output end of the driving element 9, a first driven bevel gear 12 is arranged on the rotating tube 3, and the driving bevel gear 10 and the first driven bevel gear 12 are arranged in meshing.

[0018] The working principle of the above technical solution is as follows: Firstly, the rotating tube 3 is rotated by the driving element 9, and then the rotary arc-shaped knife 4 is rotated, and then the arc-shaped knife 4 performs columnar cutting on the lung tissue, until the lung nodule to be removed is located in the columnar tissue to be removed, it is not difficult to understand that the columnar tissue to be removed is located in the interior of the rotating tube 3, then the operator pulls the two ends of the cutting wire 7 to make the cutting wire 7 straight, at this time, the cutting wire 7 in the end arc-shaped groove 5 moves outward through the inner wall arc-shaped groove 6, until it is located in the middle part of the rotating tube 3 and is in a straight state, in the process of the cutting wire 7 being straight, one half of the root of the columnar tissue is cut, then the rotating tube 3 is rotated by the driving element 9, and then the straight cutting wire 7 is rotated, and then the other half of the root of the columnar tissue is cut, so that the columnar tissue is separated from the remaining lung tissue, at this time, the rotating tube 3 is drawn out, so that the columnar tissue with the lung nodule is taken out, and then the complete rotary cutting operation on the lung nodule is completed.

[0019] In the technical solution, the cutting wire 7 is stored in the end arc-shaped slot 5 in the initial state, that is, it does not interfere with the cutting operation of the arc-shaped knife 4, when the arc-shaped knife 4 is cut to the preset depth, the cutting wire 7 is straightened to cut the root of the columnar tissue, and then the complete resection of the pulmonary nodule is completed. This cutting method can completely resect the pulmonary nodule, ensure the resection effect, and has smaller trauma compared with the traditional surgical resection. In the technical solution, the cutting wire 7 can not only cut the root of the columnar tissue, but also is located at the middle position of the rotating pipe 3, can block the outward sliding of the internal columnar tissue, and can avoid the problem that the internal columnar tissue falls out when the rotating pipe 3 is pulled out.

[0020] It should be noted that the end arc-shaped slot 5 is arranged to facilitate the storage and placement of the cutting wire 7, and the inner wall arc-shaped slot 6 is arranged to facilitate the outward movement of the cutting wire 7 when it is straightened. Of course, the end arc-shaped slot 5 and the inner wall arc-shaped slot 6 can be provided with a blocking piece to make the surface of the arc-shaped knife 4 flat, and the blocking piece will not interfere with the straightening movement of the cutting wire 7. The blocking piece is not described in detail here.

[0021] In an implementable manner, the rotating pipe 3 is sleeved with a sleeve 13, one end of the sleeve 13 is located in the housing, the other end of the sleeve 13 penetrates out of the housing and is arranged close to the penetrating end of the cutting wire 7, the outer surface of the sleeve 13 is rotationally connected to the housing, the part of the sleeve 13 located in the housing is provided with a second driven bevel gear 14, the first driven bevel gear 12 and the second driven bevel gear 14 are oppositely arranged, a threaded sleeve 17 is arranged on the outer surface of the end of the rotating pipe 3 away from the arc-shaped knife 4, the threaded sleeve 17 is threadedly connected to the rotating pipe 3, and the penetrating end of the cutting wire 7 is detachably connected to the end of the threaded sleeve 17, a limiting cylinder 18 is arranged on one end of the threaded sleeve 17 close to the end of the sleeve 13, the limiting cylinder 18 is sleeved and arranged outside the sleeve 13, a plurality of first blocking strips 19 are circumferentially arranged on the inner side of the limiting cylinder 18, a plurality of second blocking strips 16 are circumferentially arranged on the outer surface of the sleeve 13, the plurality of first blocking strips 19 and the second blocking strips 16 are arranged in contact with each other, and the inside of the housing is provided with a translation limiting assembly, which drives the driving bevel gear 10 to move vertically, thereby controlling the driving bevel gear 10 to mesh with the first driven bevel gear 12 or the second driven bevel gear 14, and when the driving bevel gear 10 meshes with the second driven bevel gear 14, the translation limiting assembly limits the rotation of the rotating pipe 3.

[0022] The principle of the above technical solution is as follows: When the driving element 9 drives the first driven bevel gear 12 to rotate, and in turn drives the rotating tube 3 and the arc-shaped knife 4 to rotate, to the preset cutting depth (the cutting depth can be determined by the CT and other development components, and at the same time, the sleeve 13 and other components rotate with the rotating tube 3), at this time, the driving element 9 is driven to move by the translation limiting component, and in turn drives the driving bevel gear 10 to move to the second driven bevel gear 14 until meshing, and at the same time, the rotation of the rotating tube 3 is limited, so the rotation of the second driven bevel gear 14 will drive the sleeve 13 to rotate, and under the action of the first stop bar 19 and the second stop bar 16, the sleeve 13 and the limiting cylinder 18 cannot rotate relative to each other, but can move up and down, so when the sleeve 13 drives the limiting cylinder 18 to rotate, it will drive the threaded sleeve 17 to rotate, and at this time the rotating tube 3 does not rotate, so the threaded sleeve 17 will rotate while moving upwards, and in turn the threaded sleeve 17 drives the end of the cutting wire 7 to move upwards, and in turn the cutting wire 7 is straightened, and after being straightened, the cutting wire 7 can be kept straight due to the self-locking of the thread, and in turn the subsequent operation of cutting the end of the columnar tissue by the cutting wire 7 can be performed.

[0023] This arrangement cleverly completes the operations of rotating cutting by the arc-shaped knife 4, straightening the cutting wire 7, and driving the cutting wire 7 to rotate to cut the root of the columnar tissue by one driving element 9, and at the same time, compared with the manual straightening method, the cutting wire 7 is straightened by this method, so that the straightening degree of the cutting wire 7 is large, and the straightening process is relatively linear, that is, the cutting speed of the root of the columnar tissue is stable, the cutting effect is good, and the medical staff only needs to use both hands to ensure the stability of the shell, the operation is more simple and reliable, and at the same time, the stability of the device as a whole is higher (manual straightening or manual rotation of the threaded sleeve 17 to straighten, in the process of manual force, the device as a whole will shake or move, which is easy to cause the arc-shaped knife 4 to move in the lung tissue, causing secondary injury to the patient).

[0024] In an implementable mode, the end of the threaded sleeve 17 is provided with a connecting ring 20, the end of the cutting wire 7 is arranged through the connecting ring 20, and the end of the cutting wire 7 is provided with a clamping block 24, the clamping block 24 and the end of the cutting wire 7 are detachably connected, the end of the cutting wire 7 can be prevented from slipping out of the clamping block 24 by knotting the end of the cutting wire, it is understood that when the threaded sleeve 17 rotates, the rotating tube 3 does not rotate, that is, the cutting wire 7 is twisted, the twisting may affect the components placed in the rotating tube 3, such as the positioning needle, however, in actual use, since the diameter of the rotating tube 3 is small, the degree of twisting of the cutting wire 7 is small, and the straightening operation can be realized, therefore, no more treatment is needed, of course, preferably, a relatively arranged semicircular through slot can be arranged on the connecting ring 20, the width of the clamping block 24 is greater than the width of the semicircular through slot, that is, when the threaded sleeve 17 rotates, the cutting wire 7 can slide in the semicircular through slot for a certain distance, and then is not twisted, therefore, this kind of arrangement can also eliminate or reduce the twisting problem of the cutting wire 7, of course, the connecting ring 20 can be rotatably connected to the threaded sleeve 17, the rotatable connection can be realized by the cooperation of bearings or grooves and protrusions, and here, no more redundant description is made.

[0025] In an implementable mode, the translation limiting assembly includes a translation assembly and a limiting assembly, the translation assembly includes sliding rods 21 arranged on the opposite sides of the driving element 9, one end of the sliding rod 21 is fixed to the driving element 9, the other end of the sliding rod 21 penetrates out of the shell and is slidably connected to the shell, and the limiting assembly includes a connecting plate 26 arranged on the driving element 9, one end of the connecting plate 26 is fixed to the driving element 9, the other end of the connecting plate 26 is provided with a limiting rod 27, a plurality of circumferentially distributed limiting strips 28 are arranged on the rotating tube 3 between the first driven bevel gear 12 and the second driven bevel gear 14, the limiting strips 28 are arranged close to the second driven bevel gear 14, and a mounting spacing is arranged between the limiting strips 28 and the first driven bevel gear 12.

[0026] The working principle of the above technical solution is as follows: When the driving bevel gear 10 and the first driven bevel gear 12 are engaged, the limiting rod 27 is located below the limiting strip 28 at this time, when the driving bevel gear 10 and the second driven bevel gear 14 are in contact, the limiting rod 27 is located between adjacent limiting strips 28, that is, the movement of the driving element 9 can be driven by the way that the operator's fingers move the sliding rod 21, thereby changing the vertical position of the driving bevel gear 10, so that the driving bevel gear 10 moves towards the second driven bevel gear 14, at the same time, the connecting plate 26 and the limiting rod 27 move together with the driving element 9 in the process that the driving bevel gear 10 moves towards the second driven bevel gear 14, thereby the limiting rod 27 is located between adjacent limiting strips 28, thereby limiting the rotation of the rotating tube 3, that is, through the cooperative linkage, the output object of the driving element 9 is changed, and the original driving corresponding rotation is also limited, the structure is simple and ingenious.

[0027] In an implementable mode, the shell is provided with a perspective window 29 (which can be provided with transparent glass or the like material), which is arranged opposite the first driven bevel gear 12 and the second driven bevel gear 14, and the arrangement of the perspective window 29 facilitates the observation of the operator to see whether the limiting rod can enter between the adjacent limiting strips 28, so as to avoid abutting interference, and also facilitates the adjustment of the position and improves the effect of the entry of the limiting rod 27 into the limiting strip 28.

[0028] In an implementable mode, the outer surface of the driving element 9 is symmetrically provided with a sliding groove, and the inner wall of the shell is provided with a sliding rail 23 which is slidingly connected in the sliding groove, so as to ensure that the driving element 9 can only move and cannot rotate, thereby ensuring the driving effect.

[0029] In an implementable mode, the sliding rod 21 is provided with an end plate 25 at one end thereof, the end plate 25 is fixed to the sliding rod 21, and a spring 22 is sleeved on the sliding rod 21, the two ends of the spring 22 are fixed to the end plate 25 and the hand-held portion 8 respectively, and the spring 22 is used to maintain the meshing contact state of the driving bevel gear 10 and the first driven bevel gear 12, and the arrangement of the spring 22 can ensure the effect of the driving bevel gear 10 acting on the first driven bevel gear 12 in the normal state, thereby ensuring the meshing driving effect, and when it is necessary to change the position of the driving element 9, the operator only needs to upwardly push the end plate 25 to overcome the resistance of the spring 22.

[0030] In an implementable mode, the sleeve pipe 13 and the rotating pipe 3 are rotatably connected to the shell through the first bearing 11 and the second bearing 15 respectively, and the prior art will not be described in detail here.

[0031] In the technical solution, the shell comprises a sleeving portion 2, a mounting portion 1 and a hand-held portion 8, the inner wall of the sleeving portion 2 is attached to the outer wall of the rotating pipe 3, so as to ensure the centering of the rotating pipe 3 and avoid the deflection thereof, the mounting portion 1 is used to mount components such as the driving element 9, the driving bevel gear, the first driven bevel gear 12 and the second driven bevel gear 14, and the hand-held portion 8 is convenient for the operator to hold during the operation, and the specific shape is shown in Figure 1 , which will not be described in detail here.

[0032] It is not difficult to understand that in the technical solution, the structure of the rotary cutter is mainly targeted, and the circuit part and the control system part involved can be realized by using the existing technology, and will not be described in detail. Preferably, in order to improve the cutting effect of the cutting wire 7, the driving assembly can be preferably arranged on the threaded sleeve 17, specifically, the driving assembly drives the motor and the driving wheel, and then the steel wire is wound on the driving wheel, so as to drive the steel wire to rotate reciprocatingly to cut the lung tissue; of course, the driving element 9 in the application can also be controlled to reverse, driving the end of the steel wire to reciprocate up and down, and in the process of reciprocating, the operator controls the rotation of the rotating tube 3, thereby controlling the contact position of the steel wire with the root of the columnar tissue, thereby cutting the root of the columnar tissue in the process of tightening the steel wire. In addition, high-frequency power can be connected to both ends of the steel wire to heat the steel wire for cutting. Therefore, the steel wire is used to cut the lung tissue, and the working principle of the high-frequency electric knife in the prior art can be referred to, and will not be described in detail.

[0033] It should be noted that the technical solution should also include the following steps when actually used: First, determine the position of the lung nodule by CT, and fix the lung nodule positioning needle to the lung nodule under the guidance of CT; then, under the guidance of the lung nodule positioning needle, establish a surgical channel through the puncture sleeve; finally, the rotating tube 3 in the technical solution is inserted into the puncture sleeve to remove the lung nodule. It is not difficult to understand that the hemostasis operation in the cutting process is the prior art (such as the cutting and hemostasis technology of the electric knife in the prior art, and of course, hemostasis operation can also be performed after cutting, etc., which can be selected and operated by those skilled in the art according to the actual situation), and the application mainly targets the structure of the rotary cutting part of the lung nodule, and will not be described in detail.

[0034] Finally, it should be pointed out that the above preferred embodiments are only used to illustrate the technical solutions of the application and are not limiting. Although the application has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and detail without departing from the scope defined by the claims of the application.

Claims

1. A lung nodule minimally invasive coring knife, characterized in that: The utility model provides a cutting device, including rotating pipe, one end of rotating pipe is equipped with arc knife, one end of arc knife is fixed on rotating pipe, the other end of arc knife is equipped with end arc slot, is equipped with inner wall arc slot on the inner wall of arc knife close to end arc slot, end arc slot and inner wall arc slot are communicated, the line of both ends of end arc slot and inner wall arc slot coincides in vertical projection, and all are located in same plane with the central axis of rotating pipe, both ends of end arc slot are equipped with wire hole, wire hole sets up in the inside of arc knife and rotating pipe, and it is set up along the length direction of arc knife and rotating pipe and penetrates, is equipped with cutting wire in wire hole, both ends of cutting wire respectively pass through two wire holes, and from the other end of rotating pipe, both ends of cutting wire can detachable connection in the outside of end of rotating pipe, the outside of rotating pipe is equipped with shell, rotating pipe is rotatably connected in the middle part of shell, and both ends of rotating pipe are located in the outside of shell, is equipped with driving element in the inside of shell, is equipped with driving bevel gear on the output of driving element, is equipped with first driven bevel gear on rotating pipe, driving bevel gear and first driven bevel gear are engaged arrangement.

2. The lung nodule minimally invasive coring knife according to claim 1, wherein: The utility model discloses a cutting device, including rotating pipe, one end of rotating pipe is equipped with arc knife, one end of arc knife is fixed on rotating pipe, the other end of arc knife is equipped with end arc slot, is equipped with inner wall arc slot on the inner wall of arc knife close to end arc slot, end arc slot and inner wall arc slot are communicated, the line of both ends of end arc slot and inner wall arc slot coincides in vertical projection, and all are located in same plane with the central axis of rotating pipe, both ends of end arc slot are equipped with wire hole, wire hole sets up in the inside of arc knife and rotating pipe, and it is set up along the length direction of arc knife and rotating pipe and penetrates, is equipped with cutting wire in wire hole, both ends of cutting wire respectively pass through two wire holes, and from the other end of rotating pipe, both ends of cutting wire can detachable connection in the outside of end of rotating pipe, the outside of rotating pipe is equipped with shell, rotating pipe is rotatably connected in the middle part of shell, and both ends of rotating pipe are located in the outside of shell, is equipped with driving element in the inside of shell, is equipped with driving bevel gear on the output of driving element, is equipped with first driven bevel gear on rotating pipe, driving bevel gear and first driven bevel gear are engaged arrangement.

3. The lung nodule minimally invasive coring knife of claim 2, wherein: The utility model discloses a cutting device, including rotating pipe, one end of rotating pipe is equipped with arc knife, one end of arc knife is fixed on rotating pipe, the other end of arc knife is equipped with end arc slot, is equipped with inner wall arc slot on the inner wall of arc knife close to end arc slot, end arc slot and inner wall arc slot are communicated, the line of both ends of end arc slot and inner wall arc slot coincides in vertical projection, and all are located in same plane with the central axis of rotating pipe, both ends of end arc slot are equipped with wire hole, wire hole sets up in the inside of arc knife and rotating pipe, and it is set up along the length direction of arc knife and rotating pipe and penetrates, is equipped with cutting wire in wire hole, both ends of cutting wire respectively pass through two wire holes, and from the other end of rotating pipe, both ends of cutting wire can detachable connection in the outside of end of rotating pipe, the outside of rotating pipe is equipped with shell, rotating pipe is rotatably connected in the middle part of shell, and both ends of rotating pipe are located in the outside of shell, is equipped with driving element in the inside of shell, is equipped with driving bevel gear on the output of driving element, is equipped with first driven bevel gear on rotating pipe, driving bevel gear and first driven bevel gear are engaged arrangement.

4. The lung nodule minimally invasive coring knife of claim 2, wherein: The translation limiting assembly comprises a translation assembly and a limiting assembly, the translation assembly comprises sliding rods arranged on opposite sides of the driving element, one end of the sliding rod is fixed on the driving element, the other end of the sliding rod passes out of the shell and is slidingly connected to the shell, the limiting assembly comprises a connecting plate arranged on the driving element, one end of the connecting plate is fixed on the driving element, the other end of the connecting plate is provided with a limiting rod, a plurality of limiting strips are arranged on the rotating pipe between the first driven bevel gear and the second driven bevel gear, the limiting strips are arranged close to the second driven bevel gear, and a mounting spacing is arranged between the limiting strips and the first driven bevel gear.

5. The lung nodule minimally invasive coring knife of claim 4, wherein: The shell is provided with a perspective window, and the perspective window is arranged opposite to the first driven bevel gear and the second driven bevel gear.

6. The lung nodule minimally invasive coring knife of claim 4, wherein: Symmetrical sliding grooves are arranged on the outer surface of the driving element, and symmetrical sliding rails are arranged on the inner wall of the shell and are slidingly connected in the sliding grooves.

7. The lung nodule minimally invasive coring knife of claim 4, wherein: End plates are arranged on one end of the sliding rods outside the shell, the end plates are fixed on the sliding rods, springs are sleeved on the sliding rods, and two ends of the springs are respectively fixed on the end plates and the hand-held part, and the springs are used to keep the meshing contact state of the driving bevel gear and the first driven bevel gear.

8. The lung nodule minimally invasive coring knife of claim 4, wherein: The sleeve and the rotating pipe are rotatably connected to the shell through the first bearing and the second bearing respectively.

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