CN108143465B

CN108143465B - Tumor stripper

Info

Publication number: CN108143465B
Application number: CN201711419980.9A
Authority: CN
Inventors: 杨秦; 王兰华
Original assignee: Shaoyang University
Current assignee: Shaoyang University
Priority date: 2017-12-25
Filing date: 2017-12-25
Publication date: 2020-11-03
Anticipated expiration: 2037-12-25
Also published as: CN108143465A

Abstract

The invention discloses a tumor stripper, which belongs to the field of medical appliances and comprises an inner box body and an outer sleeve, wherein the inner box body is provided with a suction nozzle barrel, a liquid suction pipe, a micro pump and a liquid discharge pipe which are sequentially communicated; a fixed block is fixed at the bottom of the tail end of the outermost curved cutter, and a fixed disc sleeved outside the pipette is fixed below the fixed block; the cutting curved knife is provided with micropores, and the tail of the cutting curved knife is connected with a telescopic pipe communicated with a pipette. The adjustable curved knife has the advantages that the adjustable curved knife has the function of adjusting the cutting curved knife aiming at tumors with different sizes, has better applicability, is favorable for reducing the damage to normal tissues around the periphery of the tumor, has higher application value, can cut the whole tumor at one time, and has high cutting efficiency; and the device is also provided with a blood stain sucking mechanism, so that the cutting operation of a doctor is facilitated.

Description

Tumor stripper

Technical Field

The invention relates to the field of medical appliances, in particular to a tumor dissector.

Background

Any part of the human body can generate tumors, which are mostly benign, and benign tumors have a complete tumor wall which is adhered to normal tissues. Some benign tumors of the surgical system need to be removed. Currently, surgical stripping of benign tumors involves blunt or sharp separation of the wall from the surrounding tissue with scissors, handle or index finger and maintenance of cyst integrity for removal. However, the scissors can be used for thick adhesion, and the tumor is easy to rupture and overflow to the abdominal cavity and the pelvic cavity, so that the tumor is planted and recurs, and the expansion force is reduced after the capsule wall is ruptured, so that the difficulty of stripping is increased. Although the tumor wall is not easily damaged when the tumor is separated from the human body after the operation by using the fingers, the fingers are short and are not easily separated to the lower section and the basal part of the tumor. The knife handle is straight, the tumor wall and normal tissues are easy to be damaged, and the use of the knife handle for larger tumors is inconvenient.

At present, cutting tools adopted by the existing tumor dissectors are all integrally formed tool bodies, the length of the cutting tools is not adjustable, a part of the cutting tools is needed to cut the adhesion part of the tumor and the normal tissue when the cutting tools are used, the cutting can not be finished at one time, and the cutting efficiency is lower. A tumor stripper is disclosed in a patent with an authorization publication number of CN 205391141U, and comprises a drag hook fixing pipe, wherein the drag hook fixing pipe is sleeved with a pipe sleeve, two ends of the drag hook fixing pipe extend out of two ends of the pipe sleeve, one end of the drag hook fixing pipe is provided with a plurality of fixing pieces, and the fixing pieces are hinged with drag hooks with drag hook extension rods. When the tumor mass needs to be taken out, the draw hook fixing tube is only required to be lifted to press the sleeve downwards, the two draw hooks gather towards the center to clamp the tumor mass, and then the tumor mass can be taken out. However, the length of the draw hook with the long rod is not adjustable, the long rod is not suitable for the surface of the tumor, the cutting effect is poor, and the application value is low; the draw hook is only hinged on the fixed part, and has no locking mechanism, so the state can not be stably maintained, and the use is not convenient; the blood stain can cover the cutting part without a blood stain absorption mechanism, so that the cutting operation of a treating doctor is influenced, and the diagnosis and treatment of a patient are not facilitated; and because the front end of the long rod is bent into a hook, the width is larger, and the hook needs a larger space when extending into the periphery of the tumor, so that the hook has larger damage to normal tissues at the periphery of the tumor.

Disclosure of Invention

1. Technical problem to be solved

The invention aims to solve the technical problem of providing a tumor stripper which has the function of adjusting a cutting curved knife aiming at tumors with different sizes, has better applicability, is beneficial to reducing the damage to normal tissues around the periphery of the tumor, has higher application value, can cut the whole tumor at one time and has high cutting efficiency; and the device is also provided with a blood stain sucking mechanism, so that the cutting operation of a doctor is facilitated.

2. Technical scheme

In order to solve the problems, the invention adopts the following technical scheme:

a tumor stripper comprises an inner box body and an outer sleeve, wherein a micro pump and a pipette connected above the micro pump are arranged in the inner box body, a horn-shaped suction nozzle cylinder communicated with the pipette is arranged at the top of the inner box body, and a liquid discharge pipe communicated with the pipette is connected below the micro pump;

the bottom of the outer sleeve is flush and sealed with the inner box body, the top of the wall of the outer sleeve is uniformly hinged with at least two cutting curved knives along the circumference, each cutting curved knife comprises a plurality of layers of curved knives which are sleeved inside and outside and have the same radian, the bottom of the outer side of the outermost curved knife is fixed on a rotating shaft which is rotatably connected with the top of the wall of the outer sleeve, the tail ends of the curved knives in the outermost curved knife are sealed, a steel wire cable is fixedly connected with the tail end of the curved knife in the innermost layer, the other end of the steel wire cable sequentially penetrates through the lower ends of the curved knives and the last curved knife and extends into the inner cavity of the outer sleeve, a pushing piston connected with the steel wire cable is arranged in the inner cavity of the outer sleeve, the bottom of the pushing piston is connected with a pushing rod penetrating through the bottom of the outer sleeve, a handle is arranged at the bottom of the pushing rod, a fixing bolt, a fastening nut is arranged on the fixing bolt on the outer side of the sliding hole, and a spring is arranged on the outer side of the steel wire rope along the length direction of the steel wire rope;

each layer of the curved knife side wall and the knife tail end are provided with micropores for absorbing bloodiness and transmitting, the side of the knife tail end of the curved knife penetrates through the inner box body, the inner box body is provided with a through hole for the penetration of the knife tail end of the curved knife, the through hole is a long strip shape with the width just accommodating the tail end of the curved knife, the length can allow the tail end of the curved knife to swing up and down, the knife tail end of the curved knife is open and connected with a telescopic pipe, a connecting lantern ring is sleeved at the joint, the telescopic pipe is communicated with the pipette, the bottom of the connecting lantern ring is fixedly connected with a fixed block, the lower surfaces of at least two fixed blocks are fixed on the same fixed disc sleeved at the outer side of the pipette, the bottom surface at one side of the fixed disc is fixedly connected with a moving rod which is longitudinally arranged, the lower end of the moving rod is connected with a push-pull rod, the lower end of the push-pull rod penetrates through the bottom of the inner box body and is fixed with a rotary knob, and the surface of the push-pull rod and the part of the bottom of the inner box body through which the push-pull rod penetrates are distributed with matched threads; and a rotating handle is fixed on the outer surface of the outer sleeve.

Specifically, the cutting curved knife comprises three layers of curved knives which are sleeved inside and outside and have the same radian, namely a small curved knife, a middle curved knife and a large curved knife.

Furthermore, a middle block is arranged inside the large curved knife, and the spring comprises a first spring connected with the tail end of the small curved knife and the middle block and a second spring connected with the middle block and used for pushing the piston. Because the spring is required to transmit the pushing force or the pulling force applied to the spring by the pushing piston to the other end in application, the spring with the shorter length has better transmission effect than the spring with the longer length, the spring is divided into a first spring and a second spring, and the second spring can assist in limiting the distance between the innermost curved knife and the outermost curved knife after the complete unfolding.

Furthermore, scales are arranged on the push rod along the length direction of the push rod. The scales can digitalize and visualize the moving distance of the push rods, can provide a uniform adjusting standard for a plurality of push rods, and are convenient for each cutting bent knife to keep the same state, thereby being beneficial to the stripping of tumors.

Furthermore, a magnet is arranged on the tool bit of the bending tool on the innermost layer. When the tool tip of each cutting curved knife is gathered at the bottom of the tumor, the stable state of the cutting curved knife can be further ensured through the attraction effect among the magnets, and the tool tip can be applied to check and confirm whether the tool tip of each cutting curved knife reaches the bottom of the tumor.

3. Advantageous effects

(1) The cutting curved knife comprises a plurality of layers of curved knives which are sleeved inside and outside and have the same radian, the knife tail ends of all layers of curved knives in the curved knife at the outermost layer are sealed, the knife tail end of the curved knife at the innermost layer is fixedly connected with a steel wire rope, and the outer side of the steel wire rope is provided with a spring along the length direction of the steel wire rope. The multi-layer bent knife can be retracted into the outermost layer bent knife by tensioning the steel wire rope, the inner bent knife can be extended outwards and unfolded by loosening the steel wire rope and pushing the spring, and the whole length of the cutting bent knife can be adjusted; the bottom of the tail end of the outermost curved knife is fixedly connected with a fixing block, and a fixing disc sleeved outside the pipette is fixed below the fixing block. The fixed disc body is pushed up or pulled down, so that the tail end of the knife of the curved knife at the outermost layer can ascend or descend, and the whole cutting curved knife is opened or folded outwards under the auxiliary action of the hinge joint of the rotating shaft, so that the knife body of the cutting curved knife is close to the surface of the tumor, and the damage to the normal tissues at the periphery of the tumor periphery can be reduced as much as possible. In practical application, according to the difference of tumor size, the diameter and the whole length of the surrounding range of the cutting curved knife can be adjusted, so that the cutting curved knife is close to the surface of the tumor and is surrounded into a sphere range, and the knife tip of the cutting curved knife reaches the bottom of the tumor. Therefore, the invention has the advantages of stronger regulating function, good applicability, contribution to reducing the damage to normal tissues around the periphery of the tumor and higher application value.

(2) The pushing piston connected with the steel wire rope is arranged in the inner cavity of the outer sleeve, the bottom of the pushing piston is connected with the pushing rod penetrating through the bottom of the outer sleeve, so that the steel wire rope is convenient to tighten and loosen and the spring is convenient to push, a fixing bolt penetrating through the wall of the outer sleeve is fixed on the side edge of the pushing piston, and a fastening nut is arranged on the fixing bolt, so that the fixed position state of a related mechanism is convenient to keep; the bottom surface of one side of the fixed disc is fixedly connected with a movable rod, the lower end of the movable rod is rotatably connected with a push-pull rod, the lower end of the push-pull rod penetrates through the bottom of the inner box body and is fixedly provided with a rotating knob, and the surface of the push-pull rod and the corresponding part of the bottom of the inner box body penetrating through the surface of the push-pull rod are provided with matched threads, so that the fixed disc body can be conveniently pushed up or pulled down through rotation, and meanwhile, the fixed position state of a. Therefore, the state of the cutting curved knife can be stably kept through the related locking mechanism, and the cutting curved knife is convenient to apply. The invention is also provided with a suction nozzle cylinder which can be propped against the tumor, and the micro suction nozzle cylinder can generate suction force to the tumor when being opened, thereby having the function of preventing the tumor from deviating; the outer surface of the outer sleeve is fixed with a rotating handle, the whole tumor stripper is rotated by rotating the handle based on the suction effect of the suction nozzle barrel on the tumor and the stable maintaining state of the cutting bent knives, so that the cutting bent knives can cut the whole tumor at one time by surrounding the tumor cutting, and the cutting efficiency is high.

(3) The invention is provided with a horn-shaped suction nozzle cylinder, a pipette is communicated below the suction nozzle cylinder, the pipette is connected with a micropump and is also communicated with a liquid discharge pipe; the cutting curved knife is provided with micropores, the tail of the cutting curved knife is connected with a telescopic pipe, and the telescopic pipe is communicated with a liquid suction pipe. In the process of tumor peeling, after the micropump is started, the suction nozzle barrel and the micropores suck bloodiness and send the bloodiness into the liquid suction pipe, and finally the bloodiness is discharged out of the body from the liquid discharge pipe, so that the clearness of the tumor cutting part is maintained, and the cutting operation of a doctor is facilitated.

In conclusion, the adjustable curved knife has the function of adjusting the cutting curved knife aiming at tumors with different sizes, has better applicability, is beneficial to reducing the damage to normal tissues around the periphery of the tumor, has higher application value, can cut the whole tumor at one time, and has high cutting efficiency; and the device is also provided with a blood stain sucking mechanism, so that the cutting operation of a doctor is facilitated.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of section A-A of FIG. 1;

fig. 3 is a schematic structural view of a section B-B in fig. 2.

Wherein, 1-a micropump, 2-a pipette, 3-a suction nozzle barrel, 4-a liquid discharge pipe, 5-a cutting curved knife, 51-a small curved knife, 52-a middle curved knife, 53-a large curved knife, 6-a rotating shaft, 7-a steel wire rope, 8-a pushing piston, 9-a pushing rod, 10-an inner box body, 11-a handle, 12-a fixing bolt, 13-a sliding hole, 14-a fastening nut, 15-a micropore, 16-a telescopic pipe, 17-a connecting lantern ring, 18-a fixing block, 19-a fixing disc, 20-an outer sleeve, 21-a moving rod, 22-a pushing rod, 23-an accommodating groove, 24-a moving block, 25-a rotating knob, 26-a thread, 27-a rotating handle, 28-an intermediate block and 29-a spring I, 30-spring two, 31-scale, 32-through hole, 33-magnet.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Examples

The tumor stripper as shown in fig. 1 and 2 comprises an inner box body 10 and an outer sleeve 20, wherein a micro pump 1 and a pipette 2 connected above the micro pump 1 are arranged in the inner box body 10, a horn-shaped nozzle barrel 3 communicated with the pipette 2 is arranged at the top of the inner box body 10, and a drain pipe 4 communicated with the pipette 2 is connected below the micro pump 1;

the bottom of the outer sleeve 20 is flush and sealed with the inner box 10, the top of the cylinder wall of the outer sleeve 20 is evenly hinged with at least two cutting curved knives 5 along the circumference, each cutting curved knife 5 comprises a plurality of layers of curved knives which are sleeved inside and outside and have the same radian, the bottom of the outer side of the outermost layer of curved knives is fixed on a rotating shaft 6 which is rotatably connected with the top of the cylinder wall of the outer sleeve 20, the tail ends of all layers of curved knives in the outermost layer of curved knives are sealed, the tail end of the innermost layer of curved knives is fixedly connected with a steel wire rope 7, the other end of the steel wire rope 7 sequentially passes through the lower ends of all layers of curved knives and the last layer of curved knives and extends into the inner cavity of the outer sleeve 20, a pushing piston 8 connected with the steel wire rope 7 is arranged in the inner cavity of the outer sleeve 20, the bottom of the pushing piston 8 is connected with a pushing rod 9 passing through the bottom of the, a sliding hole 13 for the fixing bolt 12 to move up and down is formed in the wall of the outer sleeve 20, a fastening nut 14 is arranged on the fixing bolt 12 outside the sliding hole, and a spring is arranged outside the steel wire rope 7 along the length direction of the steel wire rope;

the side of the knife tail end of the outermost curved knife passes through the inner box body 10, a through hole 32 for the knife tail end of the outermost curved knife to pass through is arranged on the inner box body 10, the through hole 32 is a strip shape with the width just accommodating the knife tail end of the outermost curved knife, the length of the strip shape can allow the knife tail end of the outermost curved knife to swing up and down, the knife tail end of the outermost curved knife is open and is connected with a telescopic pipe 16, the connecting part is sleeved with a connecting lantern ring 17, the telescopic pipe 16 is communicated with the pipette 2, the bottom of the connecting lantern ring 17 is fixedly connected with a fixed block 18, as shown in figure 3, the lower surfaces of at least two fixed blocks 18 are fixed on a fixed disc 19 sleeved on the outer side of the pipette 2, the bottom surface of one side of the fixed disc 19 is fixedly connected with a moving rod 21 which is longitudinally arranged, and the lower end of the moving rod 21 is connected, the lower end of the moving rod 21 and the upper end of the push-pull rod 22 are respectively provided with a holding groove 23 and a rotating stop block 24 which are matched with each other, the lower end of the push-pull rod 22 penetrates through the bottom of the inner box body 10 and is fixed with a rotating knob 25, and the surface of the push-pull rod 22 and the part of the bottom of the inner box body 10 through which the push-pull rod 22 penetrates are distributed with matched threads 26; a turning handle 27 is fixed to the outer surface of the outer sleeve 20.

In this embodiment, the cutting curved blade 5 includes three layers of curved blades with the same radian, namely a small curved blade 51, a middle curved blade 52 and a large curved blade 53.

In this embodiment, the large curved blade 53 is provided with an intermediate block 28 inside, and the springs include a first spring 29 connecting the tail end of the small curved blade 51 and the intermediate block 28 and a second spring 30 connecting the intermediate block 28 and the pushing piston 8. Since the spring is required to transmit the pushing or pulling force applied to the spring by the pushing piston 8 to the other end in the application, the spring with a shorter length is better than the spring with a longer length, so that the spring is divided into a first spring 29 and a second spring 30, and the second spring 30 can help to limit the distance between the innermost layer bending blade and the outermost layer bending blade after the complete unfolding.

In this embodiment, the push rod 9 is provided with a scale 31 along the length direction thereof. The scales 31 can digitally visualize the moving distance of the push rods 9, provide a uniform adjustment standard for a plurality of push rods 9, and facilitate the cutting bent knives 5 to keep the same state, thereby being beneficial to the stripping of tumors.

In this embodiment, the tool bit of the innermost curved knife is provided with a magnet 33. When the tip of each cutting curved blade 5 is closed to the bottom of the tumor, the attraction between the magnets 33 can further ensure the stable state of the cutting curved blade 5, and can be used for checking and confirming whether the tip of each cutting curved blade 5 reaches the bottom of the tumor.

The specific application process of the tumor stripper comprises the following steps:

after a small opening is cut on the tumor outer envelope, the suction nozzle cylinder 3 is pressed against the tumor, the micropump 1 is started, and the suction nozzle cylinder 3 generates suction force on the tumor, so that the tumor migration prevention effect is achieved; then the handle 11 is pushed, the steel wire rope 7 moves upwards through the transmission of the push rod 9 and the push piston 8, and the inner curved knives start to extend and unfold under the action of the spring (in an initial state, each layer of curved knives are folded in the inner part of the outermost curved knife), so that the knife points of the cutting curved knives 5 slowly drill into the periphery of the tumor; the rotary knob 25 is screwed in or out to drive the push-pull rod 22 to move forwards or backwards, the tail end of the outermost layer of the curved knife is enabled to ascend or descend through the transmission of the moving rod 21, the fixed disc 19 and the fixed block 18, the whole cutting curved knife 5 is opened or folded outwards under the auxiliary action of the hinge joint of the rotating shaft 6, so that the cutting curved knife 5 is close to the surface of the tumor, the knife point of the innermost layer of the curved knife reaches the bottom of the tumor (the knife point can be confirmed to reach the bottom of the tumor through the attraction of the magnet 33), and the whole length and the surrounding range (the diameter of a sphere is surrounded by a plurality of cutting curved knives 5 which are uniformly hinged along the circumference of the top of the wall of the outer sleeve 20) of the cutting curved knife 5 are adjusted according to the size of the tumor, so that the; then the fastening nut 14 is screwed on the fixing bolt 12, and the push-pull rod 22 is always stabilized on the inner case 10 by the thread 26 during the moving process, so that the state of the cutting curved knives 5 is maintained, and then the whole tumor stripper is rotated by rotating the handle 27 based on the tumor being subjected to the suction action of the suction nozzle barrel 3, so that each cutting curved knife 5 surrounds the tumor to cut, and the cutting surface at least encloses one circle (in this embodiment, two cutting curved knives 5 are provided, and the rotation is 180 degrees), so that the whole tumor can be cut at one time. In the cutting process, the micro-pores 15 on the cutting curved knife 5 absorb blood stains generated by cutting under the action of the micro-pump 1 and convey the blood stains into the pipette 2, and the suction nozzle barrel 3 also absorbs part of the blood stains and finally discharges the blood stains out of the body from the liquid discharge pipe 4.

Therefore, the adjustable curved knife has the function of adjusting the cutting curved knife aiming at tumors with different sizes, has better applicability, is favorable for reducing the damage to normal tissues around the periphery of the tumor, has higher application value, can cut the whole tumor at one time, and has high cutting efficiency; and the device is also provided with a blood stain sucking mechanism, so that the cutting operation of a doctor is facilitated.

It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.

Claims

1. The tumor stripper is characterized by comprising an inner box body (10) and an outer sleeve (20), wherein a micro pump (1) and a pipette (2) connected above the micro pump (1) are arranged in the inner box body (10), a horn-shaped suction nozzle cylinder (3) communicated with the pipette (2) is arranged at the top of the inner box body (10), and a liquid discharge pipe (4) communicated with the pipette (2) is connected below the micro pump (1);

the bottom of the outer sleeve (20) is flush and sealed with the inner box body (10), at least two cutting curved knives (5) are evenly hinged to the top of the cylinder wall of the outer sleeve (20) along the periphery of the cylinder wall, each cutting curved knife (5) comprises a plurality of layers of curved knives which are sleeved inside and outside and have the same radian, the bottom of the outer side of each outermost layer of curved knives is fixed on a rotating shaft (6) which is rotatably connected to the top of the cylinder wall of the outer sleeve (20), the knife tail ends of all layers of curved knives in the outermost layer of curved knives are sealed, the knife tail end of each innermost layer of curved knives is fixedly connected with a steel wire cable (7), the other end of each steel wire cable (7) sequentially penetrates through the lower ends of all layers of curved knives and the last layer of curved knives and extends into the inner cavity of the outer sleeve (20), a pushing piston (8) connected with a pushing rod (9) penetrating through the bottom of the outer sleeve (, a handle (11) is arranged at the bottom of the push rod (9), a fixing bolt (12) penetrating through the cylinder wall of the outer sleeve (20) is fixed on the side edge of the push piston (8), a sliding hole (13) for the fixing bolt (12) to move up and down is formed in the cylinder wall of the outer sleeve (20), a fastening nut (14) is arranged on the fixing bolt (12) outside the sliding hole (13), and a spring is arranged outside the steel wire rope (7) along the length direction of the steel wire rope;

each layer curved knife lateral wall and sword tail end all are equipped with micropore (15) that are used for inhaling bloodstain and transmit, and outmost the sword tail end place side of curved knife passes interior box (10), be equipped with on interior box (10) and supply through-hole (32) that outmost curved knife tail end passed, through-hole (32) just hold outmost curved knife tail end for the width, and length can supply the rectangular shape of outmost curved knife tail end luffing motion, outmost the sword tail end of curved knife is uncovered and is connected with flexible pipe (16), and the junction cover is equipped with the connecting collar (17), flexible pipe (16) with pipette (2) intercommunication, connecting collar (17) bottom fixedly connected with fixed block (18), at least two fixed block (18) lower surface is fixed on same fixed disk (19) of suit in pipette (2) the outside, the bottom surface fixedly connected with of fixed disk (19) one side vertically sets up removal pole (21), the lower end of the moving rod (21) is connected with a push-pull rod (22), the lower end of the moving rod (21) and the upper end of the push-pull rod (22) are respectively provided with a containing groove (23) and a rotating stop block (24) which are matched with each other, the lower end of the push-pull rod (22) penetrates through the bottom of the inner box body (10) and is fixedly provided with a rotating knob (25), and the surface of the push-pull rod (22) and the part of the bottom of the inner box body (10) through which the push-pull rod (22) penetrates are provided with matched threads (; a rotating handle (27) is fixed on the outer surface of the outer sleeve (20).

2. The tumor dissector according to claim 1, wherein the cutting blade (5) comprises three layers of blades with the same curvature, namely a small blade (51), a middle blade (52) and a large blade (53), which are sleeved inside and outside.

3. The tumor dissector according to claim 2, wherein the large curved knife (53) is provided with an intermediate block (28) inside, and the springs comprise a first spring (29) connecting the tail end of the small curved knife (51) and the intermediate block (28) and a second spring (30) connecting the intermediate block (28) and the pushing piston (8).

4. Tumor dissector according to claim 1, characterized in that the push rod (9) is provided with graduations (31) along its length.

5. The tumor dissector of claim 1 wherein the blade of the innermost curved blade is provided with a magnet (33).