CN108143465A - A kind of tumor dissector - Google Patents

Abstract

The invention discloses a kind of tumor dissectors, belong to medical instruments field, including internal box and outer sleeve, internal box is equipped with suction nozzle cylinder, pipette, micropump and the drain pipe being sequentially communicated, its border of outer sleeve upper edge is equipped with multiple cutting tulwars, cutting tulwar includes the multilayer tulwar of inside and outside socket, and the knife tail end of innermost layer tulwar is fixedly connected with hawser, spring is equipped with along its length on the outside of hawser；The knife tail end bottom of outermost layer tulwar is fixed with fixed block, and a fixed disc being sleeved on the outside of pipette is fixed below fixed block；Micropore is furnished on cutting tulwar, cuts the telescoping tube that pipette is connected at tulwar knife tail.The present invention has the regulatory function to cutting tulwar for different size of tumour, and applicability is preferable, also helps the injury reduced to the normal structure of tumour circumferential perimeter, and application value is higher, and can disposably cut down entire tumour, and cutting efficiency is high；Also there is the mechanism for drawing blood stains, convenient for the cutting operation of doctor.

Description

a tumor stripper

technical field

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

Background technique

Tumors may occur in any part of the human body, and most of them are benign. Benign tumors have a complete tumor wall that adheres to normal tissues. Some benign tumors in the surgical system need to be excluded. At present, in surgical dissection of benign tumors, scissors, knife handles or index fingers are used to bluntly or sharply separate the cyst wall from the surrounding tissue and maintain the integrity of the cyst for removal. However, scissors can be used for thicker adhesions, and it is easy to cause tumor rupture and discharge to the abdominal cavity and pelvic cavity, resulting in tumor planting and recurrence. Using fingers to separate the postoperative tumor from the human body is not easy to damage the tumor wall, but the short fingers make it difficult to separate the lower part of the tumor and the base. The handle of the knife is relatively straight, which is easy to damage the tumor wall and normal tissue, and it is inconvenient to use for larger tumors.

At present, the cutting knives used in the existing tumor strippers are all integrally formed knife bodies, and their lengths are not adjustable. During application, part of the adhesion between the tumor and the normal tissue needs to be cut, which cannot be completed at one time, and the cutting efficiency is low. A tumor stripper is disclosed in the patent with the authorized notification number of CN 205391141U, which includes a hook fixing tube, and the hook fixing tube is sleeved with a sleeve, and both ends of the hook fixing tube extend out of the two ends of the sleeve, and the hook is fixed. One end of the tube is provided with a plurality of fixing parts, and a draw hook with a draw hook extension rod is hinged on the fixer. When the tumor mass needs to be taken out, it is only necessary to pull the retractor fixing tube and press down the sleeve tube, and the two retractors gather toward the center to clamp the tumor mass, and the tumor mass can be removed. However, since the retractor has a long rod, the length cannot be adjusted, and the long rod is not suitable for the surface of the tumor, the cutting effect is poor, and the application value is low; the retractor is only hinged on the fixing part, there is no locking mechanism, and the state cannot be stably maintained. Not very convenient; there is no mechanism for sucking blood stains, blood stains may cover the cutting site and affect the doctor's cutting operation, which is not conducive to the patient's diagnosis and treatment; and because the front end of the long rod is bent into a hook with a large width, it needs to be inserted into the surrounding tumor The larger the space, the greater the damage to the normal tissues surrounding the tumor.

Contents of the invention

1. Technical problems to be solved

The technical problem to be solved by the present invention is to provide a tumor stripper, which has the function of adjusting the cutting machete for tumors of different sizes, has good applicability, and is also conducive to reducing the damage to normal tissues around the tumor periphery. The value is high, and the entire tumor can be cut off at one time, and the cutting efficiency is high; it also has a blood-absorbing mechanism, which is convenient for doctors to cut.

2. Technical solution

In order to solve the above problems, the present invention takes the following technical solutions:

A tumor stripper, comprising an inner box and an outer sleeve, the inner box is provided with a micropump and a suction pipe connected above the micropump, and the top of the inner box is provided with a horn connected to the suction pipe Shaped suction nozzle cylinder, the discharge pipe connected with the suction pipe is connected below the micropump;

The bottom of the outer sleeve is flush with the inner box and sealed, and the top of the outer sleeve wall is uniformly hinged with at least two cutting knives along its circumference, and the cutting knives include inner and outer joints with the same arc Multi-layer scimitar, wherein the outer bottom of the outermost scimitar is fixed on the rotating shaft that is rotatably connected to the top of the outer sleeve wall, the ends of each layer of scimitar in the outermost scimitar are closed, and the innermost The end of each layer of scimitars is fixedly connected with a wire rope, and the other end of the wire rope passes through each layer of scimitars and the lower end of the last layer of scimitars and extends into the inner cavity of the outer sleeve. A push piston connected to a wire rope is provided in the inner cavity, a push rod passing through the bottom of the outer sleeve is connected to the bottom of the push piston, a handle is provided at the bottom of the push rod, and a handle is fixed on the side of the push piston to pass through the outer sleeve. The fixing bolt of the sleeve wall, the outer sleeve wall is provided with a sliding hole for the fixing bolt to move up and down, the fixing bolt outside the sliding hole is provided with a fastening nut, and the outer side of the steel wire rope is There is a spring in the direction;

The side wall of the scimitar in each layer and the end of the knife are all provided with micropores for sucking blood and transporting it. The side where the end of the scimitar in the outermost layer is located passes through the inner box. There is a through hole for the tail end of the outermost machete knife to pass through. The through hole is a long strip with a width just enough to accommodate the tail end of the outermost machete knife and a length capable of allowing the tail end of the outermost scimitar knife to swing up and down. , the tail end of the scimitar in the outermost layer is open and connected with a telescopic tube, and the connection is covered with a connecting collar, the telescopic tube communicates with the suction tube, and the bottom of the connecting collar is fixedly connected with As for the fixed block, the lower surfaces of at least two fixed blocks are fixed on the same fixed disc set on the outside of the pipette, and the bottom surface of one side of the fixed disc is fixedly connected with a longitudinally arranged moving rod, and the moving rod The lower end is connected to the push-pull rod, and the lower end of the moving rod and the upper end of the push-pull rod are respectively provided with matching accommodation grooves and rotation stops. The lower end of the push-pull rod passes through the bottom of the inner box and is fixed with a rotating knob. And the part of the bottom of the inner box where the push-pull rod passes is provided with matching threads; the outer surface of the outer sleeve is fixed with a rotating handle.

Specifically, the cutting scimitar includes a three-layer scimitar with the same curvature inside and outside, which are respectively a small scimitar, a medium scimitar and a large scimitar.

Further, an intermediate block is provided inside the large machete, and the spring includes spring one connecting the tail end of the small machete and the intermediate block, and spring two connecting the intermediate block and pushing the piston. Because the spring needs to transmit the pushing force or pulling force exerted by the pushing piston on the spring to the other end in the application, and the shorter spring has better transmission effect than the longer spring, so the spring is divided into spring one and spring two, and The second spring can assist in limiting the distance between the innermost scimitar and the outermost scimitar after fully unfolded.

Further, scales are provided on the push rod along its length direction. The scale can digitally visualize the moving distance of the push rod, and can provide a unified adjustment standard for multiple push rods, so that each cutting machete can maintain the same state, thereby facilitating the peeling of the tumor.

Further, a magnet is provided on the cutting head of the machete in the innermost layer. When the tips of the cutting scimitars are gathered at the bottom of the tumor, the attraction between the magnets can further ensure the stability of the cutting scimitars, and can be used as a test to confirm whether the tips of the cutting scimitars reach the bottom of the tumor.

3. Beneficial effect

(1) The cutting scimitar in the present invention comprises a multi-layer scimitar with inner and outer connections and the same radian. The tail ends of each layer of scimitars in the outermost scimitar are all closed, and the tail ends of the innermost scimitar are closed. The end is fixedly connected with a steel wire rope, and the outer side of the steel wire rope is provided with a spring along its length direction. Tensioning the wire rope can retract the multi-layer machete into the outermost machete, loosen the wire rope and push the spring, so that the inner machete can be stretched out, that is, the overall length of the cutting machete can be adjusted; The bottom of the tail end of the outermost scimitar is fixedly connected with a fixed block, and a fixed disc set on the outside of the suction pipe is fixed below the fixed block. Pushing up or pulling down the fixed plate can make the tail end of the outermost scimitar rise or fall, and with the assistance of the hinge of the rotating shaft, the cutting scimitar can be opened or retracted as a whole, so that the blade body of the cutting scimitar can Close to the surface of the tumor, it can minimize the damage to the normal tissue around the tumor periphery. In practice, according to the size of the tumor, the diameter and overall length of the cutting machete can be adjusted so that the cutting machete is close to the surface of the tumor to form a spherical range, and the tip of the cutting machete reaches the bottom of the tumor. It can be seen that the present invention has strong regulating function and good applicability, and is also beneficial to reduce the damage to normal tissues around the periphery of the tumor, and has high application value.

(2) In the present invention, the inner cavity of the outer sleeve is provided with a push piston connected to the wire rope, and the bottom of the push piston is connected with a push rod passing through the bottom of the outer sleeve, so as to facilitate the tightening and relaxation of the wire rope and the tightening of the spring. Push, the side of the push piston is fixed with a fixing bolt passing through the wall of the outer sleeve, and the fixing bolt is provided with a fastening nut, which is convenient for maintaining the fixed position of the relevant mechanism; a moving rod is fixedly connected to the bottom surface of the side of the fixed disc , the lower end of the moving rod rotates to connect with the push-pull rod, the lower end of the push-pull rod passes through the bottom of the inner box and is fixed with a rotating knob, the surface of the push-pull rod and the corresponding part of the bottom of the inner box through which it passes are provided with matching threads, which is convenient for turning Realize the push-up or pull-down of the fixed disk body, and at the same time keep the fixed position state of the relevant mechanism at any time. It can be seen that the present invention can stably maintain the state of the cutting machete through the relevant locking mechanism, which is convenient for application. The present invention is also equipped with a suction nozzle tube, which can be pressed against the tumor, and the micro-opening can generate a suction force on the tumor, which has the effect of preventing tumor deviation; the outer surface of the outer sleeve is fixed with a rotating handle, based on the suction force of the suction nozzle tube on the tumor Function and cutting machete keeps the state stable, and the entire tumor stripper is turned by turning the handle, so that each cutting machete cuts around the tumor, and the entire tumor can be cut off at one time, with high cutting efficiency.

(3) The present invention is provided with trumpet-shaped nozzle tube, and the suction tube below is connected with a suction pipe, and the suction pipe is connected with a micropump, and is also connected with a discharge pipe; The tail of the knife is connected with a telescopic tube, and the telescopic tube is connected with the suction pipe. In the process of tumor dissection, after the micropump is activated, the suction nozzle barrel and micropores absorb the blood and send it to the suction tube, and finally discharged from the body through the discharge tube, which is conducive to maintaining the clarity of the tumor cutting site and facilitating the doctor's cutting. operate.

To sum up, the present invention has the function of adjusting the cutting machete for tumors of different sizes, has good applicability, and is also beneficial to reduce the damage to normal tissues around the tumor. After cutting, the cutting efficiency is high; it also has a blood-absorbing mechanism, which is convenient for doctors to cut.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the structural representation of A-A section among Fig. 1;

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

Among them, 1-miniature pump, 2-suction tube, 3-suction nozzle tube, 4-discharge pipe, 5-cutting machete, 51-small machete, 52-medium machete, 53-big machete, 6 - shaft, 7- wire rope, 8- push piston, 9- push rod, 10- inner box, 11- handle, 12- fixing bolt, 13- sliding hole, 14- fastening nut, 15- micro hole, 16 -Telescopic tube, 17-connecting collar, 18-fixed block, 19-fixed disc, 20-outer sleeve, 21-moving rod, 22-push-pull rod, 23-accommodating groove, 24-moving block, 25- Turn the knob, 26-thread, 27-rotate handle, 28-middle block, 29-spring one, 30-spring two, 31-scale, 32-through hole, 33-magnet.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

Example

A kind of tumor stripper as shown in Figure 1 and Figure 2, comprises inner casing 10 and outer sleeve 20, and described inner casing 10 is provided with micropump 1 and is connected to the suction pipe 2 above micropump 1 , the top of the inner box 10 is provided with a trumpet-shaped suction nozzle barrel 3 connected to the suction pipe 2, and the discharge pipe 4 connected to the suction pipe 2 is connected to the bottom of the micro pump 1;

The bottom of the outer sleeve 20 is flush and sealed with the inner box body 10, and at least two cutting knives 5 are evenly hinged on the top of the outer sleeve 20 wall along its circumference, and the cutting knives 5 include an inner outer sleeve The multi-layer scimitar connected with the same radian, wherein the outer bottom of the outermost scimitar is fixed on the rotating shaft 6 that is rotatably connected to the top of the outer sleeve 20 wall, and the tails of each layer of scimitars in the outermost scimitar The ends are all closed, and the tail end of the innermost scimitar is fixedly connected with a steel wire rope 7, and the other end of the steel wire 7 passes through each layer of scimitars and the lower end of the last layer of scimitars in turn and extends to the outer sleeve 20 inner cavity, the inner cavity of the outer sleeve 20 is provided with a push piston 8 connected to the wire rope 7, and the bottom of the push piston 8 is connected with a push rod 9 passing through the bottom of the outer sleeve 20, and the push rod 9 The bottom is provided with a handle 11, the side of the push piston 8 is fixed with a fixing bolt 12 passing through the wall of the outer sleeve 20, and the wall of the outer sleeve 20 is provided with a sliding hole 13 for the fixing bolt 12 to move up and down , the fixing bolt 12 on the outside of the sliding hole is provided with a fastening nut 14, and the outside of the steel wire rope 7 is provided with a spring along its length direction;

The machete side wall and the end of the machete in each layer are provided with micropores 15 for sucking blood and transmitting it. The side where the end of the machete in the outermost layer is located passes through the inner box 10, and the inner box 10 is provided with a through hole 32 for the tail end of the outermost machete to pass through. The through hole 32 is just wide enough to accommodate the tail end of the outermost machete, and the length can be used for the tail end of the outermost machete to go up and down. Swinging elongated shape, the tail end of the machete in the outermost layer is open and connected with a telescopic tube 16, and the joint is sleeved with a connecting collar 17, the telescopic tube 16 communicates with the suction pipe 2, The bottom of the connecting collar 17 is fixedly connected with a fixed block 18. As shown in FIG. The bottom surface of one side of the fixed disc 19 is fixedly connected with a moving rod 21 arranged longitudinally, the lower end of the moving rod 21 is connected with a push-pull rod 22, and the lower end of the moving rod 21 and the upper end of the push-pull rod 22 are respectively provided with matching receiving grooves 23 and the rotation block 24, the lower end of the push-pull rod 22 passes through the bottom of the inner box 10 and is fixed with a rotating knob 25, and the surface of the push-pull rod 22 and the bottom of the inner box 10 for the push-pull rod 22 to pass through are clothed with corresponding Adapted threads 26; a rotating handle 27 is fixed on the outer surface of the outer sleeve 20.

In this embodiment, the cutting scimitar 5 includes three layers of scimitars with the same curvature inside and outside, which are respectively a small scimitar 51 , a middle scimitar 52 and a large scimitar 53 .

In this embodiment, the inside of the large machete 53 is provided with an intermediate block 28, and the spring includes a spring one 29 connecting the tail end of the small machete 51 and the intermediate block 28 and a spring connecting the intermediate block 28 and the push piston 8 Two thirty. Because the spring needs to transmit the pushing force or the pulling force applied to the spring by the push piston 8 to the other end in application, and the shorter spring has a better transmission effect than the longer spring, so the spring is divided into spring one 29 and spring two 30, and the spring two 30 can assist in limiting the distance between the innermost machete and the outermost machete after fully unfolded.

In this embodiment, a scale 31 is provided on the push rod 9 along its length direction. The scale 31 can digitally visualize the moving distance of the push rod 9, and can provide a unified adjustment standard for multiple push rods 9, so that each cutting scimitar 5 can maintain the same state, thereby facilitating tumor stripping.

In this embodiment, a magnet 33 is provided on the cutting head of the innermost machete. When the knife tip of each cutting scimitar 5 is gathered at the bottom of the tumor, the state of the cutting scimitar 5 can be further guaranteed to be stable through the mutual attraction between the magnets 33, and can be used as a test to confirm whether the knife tip of each cutting scimitar 5 is stable. reach the bottom of the tumor.

The specific application process of the above-mentioned tumor stripper is as follows:

After a small opening is cut on the outer membrane of the tumor, the suction nozzle barrel 3 is pressed against the tumor, and the micropump 1 is turned on. The suction nozzle barrel 3 generates a suction force on the tumor, which has the effect of preventing the tumor from shifting; then push the handle 11, through With the transmission of the push rod 9 and the push piston 8, the wire rope 7 moves up, and under the action of the spring, the inner scimitar begins to stretch out (in the initial state, each layer of scimitar is gathered inside the outermost scimitar), so that the cutting The tip of the scimitar 5 slowly drills into the periphery of the tumor; the rotary knob 25 is screwed in or out to drive the push-pull rod 22 forward or backward, and through the transmission of the moving rod 21, the fixed disc 19 and the fixed block 18, the outermost The knife tail end of the layered scimitar rises or falls, and with the assistance of the hinge of the rotating shaft 6, the cutting scimitar 5 is opened or retracted as a whole, so that the cutting scimitar 5 is close to the surface of the tumor, and the innermost scimitar The tip of the knife reaches the bottom of the tumor (it can be confirmed that the tip of the knife reaches the bottom of the tumor through the mutual attraction of the magnet 33), that is, the overall length and surrounding range of the cutting machete 5 are adjusted according to the size of the tumor (the top of the outer sleeve 20 wall along its circumference Evenly hinged multiple cutting machetes 5 are surrounded by a sphere (range) diameter, which has strong applicability and high application value; 26 can always be stabilized on the inner box 10, the state of cutting scimitar 5 can be maintained, and then based on the suction effect of suction nozzle barrel 3 on the tumor, the whole tumor stripper is rotated by turning handle 27, so that each cutting scimitar 5 circles around The tumor is cut, and the cutting surface forms at least one circle (in this embodiment, if two cutting knives 5 are provided, it needs to be rotated by 180°), the entire tumor can be cut off at one time. During the cutting process, the microhole 15 on the cutting knife 5 absorbs the blood stains produced by the cutting under the action of the micro pump 1, and transports them to the suction pipe 2, and the suction nozzle barrel 3 also absorbs part of the blood stains, and finally drains the blood from the discharge pipe. 4 out of the body.

From the above, it can be known that the present invention has the function of adjusting the cutting machete for tumors of different sizes, has good applicability, and is also conducive to reducing the damage to normal tissues around the periphery of the tumor. The application value is high, and the entire The tumor is cut off, and the cutting efficiency is high; it also has a blood-absorbing mechanism, which is convenient for doctors to cut.

Those of ordinary skill in the art should recognize that the above embodiments are only used to illustrate the present invention, rather than as a limitation to the present invention, as long as within the scope of the spirit of the present invention, the above-described embodiments Changes and modifications will fall within the scope of the claims of the present invention.

Claims (5)

1. a kind of tumor dissector, which is characterized in that including internal box (10) and outer sleeve (20), set in the internal box (10) The pipette (2) for having micropump (1) and being connected to above micropump (1), internal box (10) top are equipped with connection pipette (2) tubaeform suction nozzle cylinder (3), the drain pipe (4) that micropump (1) lower section connection is connected with pipette (2)；

Outer sleeve (20) bottom is concordant with internal box (10) and seals, equal along its border at the top of outer sleeve (20) barrel Even to be hinged at least two cutting tulwars (5), the cutting tulwar (5) includes the inside and outside multilayer tulwar being socketed and radian is identical, The exterior bottom of wherein outermost layer tulwar is fixed in the shaft (6) being rotationally connected at the top of outer sleeve (20) barrel, outermost layer The knife tail end of each layer tulwar in tulwar is closed, and the knife tail end of innermost layer tulwar is fixedly connected with hawser (7), the steel The other end of silk rope (7) sequentially passes through the lower end of each layer tulwar and last layer of tulwar and extends in outer sleeve (20) inner cavity, The promotion piston (8) of connection hawser (7) is equipped in outer sleeve (20) inner cavity, described promotion piston (8) bottom is connected with Across the catch bar (9) of outer sleeve (20) bottom, catch bar (9) bottom is equipped with handle (11), described promotion piston (8) side The fixing bolt (12) across outer sleeve (20) barrel is fixed on side, outer sleeve (20) barrel is equipped with for fixing bolt (12) slide opening (13) moved up and down, the fixing bolt (12) on the outside of the slide opening (13) is equipped with clamp nut (14), described Spring is equipped on the outside of hawser (7) along its length；

Each layer tulwar side wall and knife tail end are equipped with for micropore (15) that is dirty and transmitting of sucking blood, tulwar described in outermost layer Side where knife tail end passes through internal box (10), and the internal box (10) is equipped with the through-hole passed through for outermost layer tulwar knife tail end (32), the through-hole (32) just accommodates outermost layer tulwar knife tail end for width, length can be for outermost layer tulwar knife tail end above and below The strip of swing, the knife tail end of tulwar described in outermost layer is open and is connected with telescoping tube (16), and junction is set with connection Lantern ring (17), the telescoping tube (16) connect with the pipette (2), and described connection lantern ring (17) bottom is fixedly connected with fixation Block (18), at least two fixed block (18) lower surfaces are fixed on the same fixed disc being sleeved on the outside of pipette (2) (19) on, the bottom surface of fixed disc (19) side is fixedly connected with longitudinally disposed mobile bar (21), the mobile bar (21) lower end connection push-pull rod (22), mobile bar (21) lower end is respectively equipped with the receiving being adapted with push-pull rod (22) upper end Slot (23) and rotary block (24), push-pull rod (22) lower end pass through internal box (10) bottom and are fixed with turning knob (25), the spiral shell being adapted is furnished on the position that push-pull rod (22) surface and internal box (10) bottom are passed through for push-pull rod (22) Line (26)；Outer sleeve (20) outer surface is fixed with swing handle (27).

2. a kind of tumor dissector according to claim 1, which is characterized in that the cutting tulwar (5) is including inner-outer sleeve Dress and the identical three layers of tulwar of radian, respectively small tulwar (51), middle tulwar (52) and big tulwar (53).

3. a kind of tumor dissector according to claim 2, which is characterized in that the big tulwar (53) is internally provided with centre Block (28), the spring include the spring one (29) for connecting small tulwar (51) knife tail end and intermediate mass (28) and connection intermediate mass (28) and push piston (8) spring two (30).

4. a kind of tumor dissector according to claim 1, which is characterized in that square along its length on the catch bar (9) To equipped with scale (31).

5. a kind of tumor dissector according to claim 1, which is characterized in that the cutter head of tulwar described in innermost layer is equipped with Magnet (33).