CN112494109B

CN112494109B - Tumor cutting device

Info

Publication number: CN112494109B
Application number: CN202011463369.8A
Authority: CN
Inventors: 熊艳丽; 李崇义; 何娟; 朱晓菊; 卢先锋; 戴楠; 杨宇馨; 陈秋霞; 代晓燕
Original assignee: Chinese Peoples Liberation Army Army Specialized Medical Center
Current assignee: Chinese Peoples Liberation Army Army Specialized Medical Center
Priority date: 2020-12-11
Filing date: 2020-12-11
Publication date: 2021-12-21
Anticipated expiration: 2040-12-11
Also published as: CN112494109A

Abstract

The invention discloses a tumor cutting device, which comprises a rotary hole assembly, a cutting assembly and an angle adjusting assembly, wherein the rotary hole assembly is arranged on the rotary hole assembly; the rotary hole assembly comprises a drill rod and a drill bit; the drill bit is in an inverted cone shape and is arranged at the end part of the drill rod; the cutting assembly comprises a mounting cylinder and a blade; the installation barrel comprises an inner barrel and an outer barrel, the inner barrel is sleeved and fixedly installed on the drill rod, the outer barrel is sleeved outside the inner barrel, and the head end and the tail end of the outer barrel are respectively connected with the head end and the tail end of the inner barrel so as to form an accommodating cavity between the outer barrel and the outer barrel; one end of the outer side wall of the outer cylinder, which is close to the drill bit, is provided with a first side hole communicated with the accommodating cavity; the blade is in a strip shape sheet shape; the tool shank of the blade is arranged in the first side hole, the plane where the blade is located and the radial cross section of the drill rod form an included angle, and the cutting edge of the blade is located on one side close to the drill bit; the angle adjusting assembly is arranged in the inner cavity of the mounting cylinder and connected with the cutter handle of the blade, and the angle adjusting assembly can drive the blade to rotate in the axial plane of the drill rod. Can cut the tumor quickly and conveniently.

Description

Tumor cutting device

Technical Field

The invention relates to the field of tumor treatment, in particular to a tumor cutting device.

Background

The laparoscope tumor cutting operation has the advantages of less trauma and quick recovery, and is widely applied in clinic. The laparoscopic tumor resection has the advantages that the abdominal wall is provided with the hole with the thickness of 1-5CM, instruments enter the abdominal cavity through the hole, the tumor is separated from the endometrium under the action of the laparoscope, and the myoma can be taken out through the hole. However, since the abdominal wall foramen is usually only 1-5CM, when the diameter of the myoma is relatively large (exceeding 5CM), the entire tumor cannot be removed through the abdominal wall foramen. The existing solution is to use rotary tumor cutting, i.e. cutting the tumor into strips and blocks by a rotary drill cylinder, and discharging the strips and blocks until the whole tumor is cut. Because the cutting is performed in a gradual manner, the cutting time is long, the whole operation time is prolonged, and inconvenience is brought to doctors and patients.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a tumor cutting device which can quickly and conveniently cut tumors so as to shorten the operation time.

In order to achieve the purpose, the invention is realized by the following technical scheme: a tumor cutting device comprising:

the rotary hole assembly comprises a drill rod and a drill bit; the drill bit is in an inverted cone shape and is arranged at the end part of the drill rod;

the cutting assembly comprises a mounting cylinder and a blade; the installation barrel comprises an inner barrel and an outer barrel, the inner barrel is sleeved and fixedly installed on the drill rod, the outer barrel is sleeved outside the inner barrel, and the head end and the tail end of the outer barrel are respectively connected with the head end and the tail end of the inner barrel so as to form an accommodating cavity between the outer barrel and the outer barrel; one end of the outer side wall of the outer cylinder, which is close to the drill bit, is provided with a first side hole communicated with the accommodating cavity; the blade is in a strip shape and a sheet shape; the tool shank of the blade is arranged in the first side hole, an included angle is formed between the plane of the blade and the radial cross section of the drill rod, and the cutting edge of the blade is positioned on one side close to the drill bit;

the angle adjusting assembly is arranged in the inner cavity of the mounting cylinder and connected with the cutter handle of the blade, and the angle adjusting assembly can drive the blade to rotate in the direction close to or far away from the drill rod in the axial plane of the drill rod.

Further, the blade comprises a first blade piece, a second blade piece and a detent; the first cutter body piece is arranged in a hollow mode, and the second cutter body piece is inserted into the first cutter body piece in a sliding mode; the cutter handle is arranged on the first cutter body piece and is positioned at one end far away from the second cutter body piece; the screens ware sets up the back of a knife face of first blade piece to can extend to the back of a knife face joint with the second blade piece in the inner chamber of first blade piece.

Furthermore, a knife back of the first knife body piece is provided with a pin hole communicated to an inner cavity of the first knife body piece, and the knife back of the second knife body piece is provided with a plurality of grooves at intervals along the length direction of the knife back; the clamping device is arranged on the knife back of the first knife body piece; the clamping device comprises a support shaft, a pressure lever, a positioning pin and an elastic piece; the supporting shaft is arranged on the knife back through a bracket; the middle part of the pressure lever is rotatably sleeved on the support shaft; the positioning pin is located one end of the pressing rod, the positioning pin penetrates through the pin hole and can be inserted into one of the grooves, the elastic piece is located at the other end of the pressing rod, one end of the elastic piece is fixed on the pressing rod, and the other end of the elastic piece is connected with the knife back of the first blade piece.

Furthermore, the angle adjusting assembly comprises a driven gear, a toggle gear, a rack and a mounting wheel, the driven gear is arranged at the end part of the cutter handle, and the driven gear can be rotatably positioned in the first side hole through a rotating shaft; a second side hole is formed in the side wall of one end, far away from the drill bit, of the outer cylinder, the toggle gear is rotatably arranged in the second side hole, and the position of the toggle gear is exposed out of the second side hole; the two installation wheels are arranged in the containing cavity along the axial direction of the installation cylinder at intervals and can rotate, the rack can be slidably sleeved on the two installation wheels, one end of the rack is meshed with the shifting gear, and the other end of the rack is meshed with the driven gear.

Further, the outer diameter of the outer barrel is less than or equal to the maximum diameter of the drill bit.

Further, the support assembly comprises a cushion block; the bottom surface of the cushion block is a plane, and the top surface of the cushion block is an inwards concave arc-shaped surface.

Furthermore, a plurality of insertion thorns are arranged on the arc-shaped surface at intervals.

Furthermore, the cushion block is located an avoiding hole is formed in the middle of the arc-shaped surface, and the depth of the avoiding hole is larger than the height of the drill bit.

Further, the supporting component further comprises a containing film, the containing film is a flexible film and is arranged on the outer side wall of the cushion block and extends to the periphery.

The invention has the beneficial effects that:

the tumor cutting device comprises a rotary hole assembly, a cutting assembly and an angle adjusting assembly; the rotary hole assembly comprises a drill rod and a drill bit, the cutting assembly comprises an installation barrel and a blade, the angle adjusting assembly is arranged in the inner cavity of the installation barrel and connected with a cutter handle of the blade, the angle adjusting assembly can drive the blade to be close to or far away from the axial plane of the drill rod in the inward direction, the drill rod rotates in the direction of the drill rod, the blade is folded or unfolded, and the whole device is conveniently placed into the abdominal cavity or taken out. When the rotary cutting tool is used, a basic hole is machined through the drill rod, the cutter blade performs rotary cutting while rotating the hole, a tumor is cut into continuous slices, and finally the continuous slices are taken out of an abdominal wall hole, so that the whole tumor is cut simply and quickly.

Drawings

In order to more clearly illustrate the embodiments of the present invention, the drawings, which are required to be used in the embodiments, will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.

Fig. 1 is a schematic perspective view of a tumor cutting device according to an embodiment of the present invention;

FIG. 2 is a partial schematic view of FIG. 1 at A;

FIG. 3 is a partial schematic view of FIG. 1 at B;

FIG. 4 is a cross-sectional view of a support-removing component of the tumor cutting device shown in FIG. 1;

FIG. 5 is a partial schematic view at C of FIG. 4;

FIG. 6 is a partial schematic view of FIG. 4 at D;

FIG. 7 is a schematic view of a blade of the tumor cutting device shown in FIG. 1;

FIG. 8 is a partial schematic view at E of FIG. 7;

FIG. 9 is a schematic view of a tumor being cut into continuous sheets;

reference numerals:

100-rotary hole assembly, 110-drill rod, 120-drill bit, 200-cutting assembly, 210-mounting cylinder, 211-inner cylinder, 212-outer cylinder, 213-accommodating cavity, 214-first side hole, 215-second side hole, 220-blade, 221-handle, 222-first blade piece, 223-second blade piece, 224-clamping device and 2242-groove, 2243-supporting shaft, 2244-pressing rod, 2245-positioning pin, 2246-elastic piece, 300-angle adjusting component, 310-driven gear, 320-toggle gear, 330-rack, 340-mounting wheel, 400-supporting component, 410-cushion block, 411-arc surface, 412-avoiding hole, 443-inserting thorn, 420-containing film and 1-sheet.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

Referring to fig. 1 to 9, the present invention provides a tumor cutting device, which includes a rotating hole assembly 100, a cutting assembly 200 and an angle adjusting assembly 300, for cutting a tumor.

Referring to fig. 1, in particular, a rotating bore assembly 100 is used to drill a bore in a tumor. The rotary bore assembly 100 includes a drill rod 110 and a drill bit 120. The drill bit 120 is reverse tapered and is disposed at the end of the drill rod 110. When in use, the drill stem 110 is connected with an external rotary power source, so that a hole can be drilled in the tumor, and the hole can be used as an operation base hole.

Referring to fig. 1 and 4, cutting assembly 200 includes a mounting cylinder 210 and a blade 220. The mounting cylinder 210 includes an inner cylinder 211 and an outer cylinder 212. The inner cylinder 211 is sleeved and fixedly installed on the drill stem 110. The outer cylinder 212 is sleeved outside the inner cylinder 211, and the head and tail ends of the outer cylinder 212 are respectively connected with the head and tail ends of the inner cylinder 211, so as to form an accommodating cavity 213 between the outer cylinder 212 and the outer cylinder 212. The outer side wall of the outer cylinder 212 and the end close to the drill 120 are opened with a first side hole 214 communicated with the accommodating cavity 213. The blade 220 is in the shape of a strip sheet; the shank 221 of the blade 220 is disposed in the first side hole 214, and the plane of the blade 220 forms an angle with the radial cross section of the drill rod 110, and the cutting edge of the blade 220 is located on the side close to the drill 120. In a preferred embodiment, the outer diameter of the outer cylinder 212 is smaller than or equal to the maximum diameter of the drill 120, so that the outer cylinder 212 can smoothly enter the drilled base hole formed by the drill 120.

An angle adjustment assembly 300 is disposed within the interior cavity of mounting cartridge 210 and is coupled to a handle 221 of blade 220. The angle adjustment assembly 300 can drive the blade 220 to rotate in the axial plane of the drill rod 110 in the direction of approaching or departing from the drill rod 110, so as to fold or unfold the blade 220.

When the rotary drilling tool is used, the angle adjusting assembly 300 is moved forward, so that the blade 220 rotates towards the direction close to or away from the drill rod 110 until the blade is close to the drill rod 110, at the moment, the blade 220 is in a folded state, and then the rotary drilling assembly 100 extends into the rotary drilling tool from a hole in the abdominal wall, so that the drill 120 is aligned to the middle of a tumor; in rhythm, the angle adjustment assembly 300 is again actuated to rotate the blade 220 in a reverse direction until it is perpendicular to the central axis of the drill rod 110. Then, the drill rod 110 can be started to rotate, the drill rod 110 drives the drill bit 120 and the blade 220 to rotate simultaneously, the whole tumor cutting device is slowly pressed down towards the direction close to the tumor, the tumor can be drilled while the blade 220 gradually cuts the tumor into continuous slices 1 (as shown in fig. 9), and finally, the slices 1 can be pulled out through the holes in the abdominal wall.

Referring to fig. 7, as a preferred embodiment, the length of the blade 220 is adjustable. Specifically, the blade 220 includes a first blade piece 222, a second blade piece 223, and a detent 224. The first blade piece 222 is hollow, and the second blade piece 223 is slidably inserted into the first blade piece 222. The handle 221 is arranged on the first blade piece 222 and is positioned at one end far away from the second blade piece 223. the blocking device 224 is arranged on the back surface of the first blade piece 222 and can extend into the inner cavity of the first blade piece 222 to be blocked with the back surface of the second blade piece 223.

Referring to fig. 2 to 6, the angle adjustment assembly 300 includes a driven gear 310, a toggle gear 320, a rack 330, and a mounting wheel 340. The driven gear 310 is disposed at an end of the tool shank 221, and the driven gear 310 is rotatably disposed in the first side hole 214 through a rotation shaft. The outer cylinder 212 has a second side hole 215 formed on a side wall thereof away from the drill 120, the toggle gear 320 is rotatably disposed in the second side hole 215, and the portion of the toggle gear 320 is exposed to the second side hole 215. The two mounting wheels 340 are spaced along the axial direction of the mounting barrel 210 and can be rotatably arranged in the accommodating cavity 213, the rack 330 can be slidably sleeved on the two mounting wheels 340, one end of the rack 330 is meshed with the toggle gear 320, and the other end of the rack 330 is meshed with the driven gear 310.

When the tumor is too large, the clamping device 224 is firstly driven to separate the clamping device 224 from the back of the second blade piece 223, then the second blade piece 223 is pulled towards the direction close to or far away from the first blade piece 222, the whole blade 220 is adjusted to the proper length, the clamping device 224 is released, and the clamping device 224 is newly clamped on the second blade piece 223, namely the length of the blade 220 is adjusted.

Referring to fig. 7 and 8, in order to conveniently adjust the locking device 224 in the abdominal cavity, specifically, the knife back of the first blade piece 222 is provided with a pin hole communicated to the inner cavity thereof, and the knife back of the second blade piece 223 is provided with a plurality of grooves 2241 at intervals along the length direction thereof. The detent 224 is disposed on the back of the first blade piece 222. The stopper 224 includes a support shaft 2243, a pressing lever 2244, a positioning pin 2245, and an elastic member 2246. The support shaft 2243 is disposed on the blade back through a bracket. The middle part of the pressure lever 2244 is rotatably sleeved on the support shaft 2243. A locating pin 2245 is located at one end of the strut 2244, and the locating pin 2245 passes through the pin hole and can be inserted into one of the recesses 2241. The elastic member 2246 is located at the other end of the pressing rod 2244, and one end of the elastic member 2246 is fixed on the pressing rod 2244, and the other end is connected with the blade back of the first blade piece 222.

When the length of the blade 220 needs to be adjusted, the end part of the hemostatic forceps presses the end part of the pressure rod 2244 at the end of the elastic piece 2246 downwards towards the back of the knife body close to the first blade piece 222, the pressure rod 2244 rotates around the supporting shaft 2243 until the positioning pin 2245 is separated from the pin hole, then the length of the second blade piece 223 is adjusted, after the adjustment is finished, the pressure rod 2244 is loosened, the positioning pin 2245 is inserted into the corresponding groove 2241 from the new pin hole, and the adjustment of the length of the blade 220 is finished. In this way, the adjustment in the abdominal cavity can be conveniently and rapidly carried out.

Referring to fig. 1, as a preferred embodiment, the tumor cutting device further comprises a supporting assembly 400. The support assembly 400 includes a spacer block 410. The bottom surface of the pad 410 is a flat surface. The top surface of the pad 410 is an inwardly concave arc surface 411. When in use, the tumor and the internal tissue of the human body are firstly stripped by surgical instruments such as tweezers, scalpels and the like; then, the cushion block 410 is placed in the abdominal cavity, the arc-shaped surface 411 faces upwards, the tumor is clamped through an auxiliary clamp and the like, the tumor is moved to the arc-shaped surface 411 of the cushion block 410, the tumor can be placed on the arc-shaped surface 411 to roll, in order to further prevent the tumor from sliding on the arc-shaped surface 411, a plurality of insertion thorns 413 are arranged on the arc-shaped surface 411 at intervals, and the insertion thorns 413 can grip the tumor. The spacer 410 prevents the drill 120 from penetrating the tumor and damaging the tissue when the drill 120 approaches the end of the segmentation. In addition, an avoiding hole 412 is formed in the middle of the arc surface 411 of the cushion block 410, and the depth of the avoiding hole 412 is greater than the height of the drill 120. When the drill 120 finally passes through the tumor and enters the avoiding hole 412, the whole treatment can be completely separated, and the situation of incomplete cutting can be avoided.

In a preferred embodiment, the supporting member 400 further includes a receiving film 420, and the receiving film 420 is a flexible film and is disposed on an outer side wall of the pad 410 and extends around. Accomodate membrane 420 and be used for accomodating the piece that the cutting in-process produced and cut into the shape piece, prevent that the tumour piece from scattering in the abdominal cavity, the tumour causes to plant and disseminate. After the cushion block 410 is placed in the abdominal cavity, the containing film 420 is unfolded according to the conditions in the abdominal cavity, in the cutting process, tumor fragments are scattered and automatically scattered on the containing film 420, after the cutting is completed, the containing film 420 is folded by using forceps and taken out from the abdominal cavity hole.

The working principle and the using mode of the tumor cutting device are as follows:

when the division is carried out, firstly, a micro window is arranged on the abdominal cavity, and then, the tumor and the tissue in the human body are peeled off through a surgical instrument; then, after the cushion block 410 is placed in the abdominal cavity, the containing film 420 is unfolded according to the condition in the abdominal cavity; subsequently, the tumor is clamped by an auxiliary clamp or the like and moved to the arc surface 411 of the cushion block 410; next, the toggle gear 320 is toggled, the blade 220 is rotated towards the direction close to the drill rod 110 until the blade is close to the drill rod 110, at this time, the blade 220 is in a folded state, and then, the tumor cutting device is extended from the hole on the abdominal wall, and the drill 120 is aligned with the middle part of the tumor; by reversing the direction of the toggle gear 320, the blades 220 are caused to rotate in reverse to extend until perpendicular to the central axis of the drill pipe 110. Then, the drill rod 110 can be started to rotate, the drill rod 110 drives the drill bit 120 and the blade 220 to rotate simultaneously, the whole tumor cutting device is slowly pressed towards the direction close to the tumor, and the tumor can be drilled while the blade 220 gradually cuts the tumor into a continuous sheet 1.

After cutting, the blade 220 is firstly folded, and the whole tumor cutting device is taken out from the abdominal wall hole; the cut 1-piece tumor sheet is then pulled out through the hole in the abdominal wall, and finally the receiving membrane 420 is folded with forceps and the entire support assembly 400 is removed from the abdominal hole.

When the tumor cutting device is used, a basic hole is processed through the drill rod 110, meanwhile, the blade 220 performs rotary cutting to cut the tumor into continuous sheets, the tumor can be smoothly taken out of the abdominal wall hole, and the whole operation is simple and rapid. Meanwhile, the blades 220 can be folded, so that the whole device is conveniently placed in the abdominal cavity; the length of the blade 220 is adjustable, so that the utility model is suitable for tumors with different sizes; the clamping device 224 adopts a pressing and clamping mode, so that the simple and quick operation by tweezers in an environment with limited abdominal space is facilitated; the cushion block 410 can prevent the drill 120 from penetrating the tumor and damaging the human tissue when the segmentation is completed; meanwhile, the arc-shaped surface 411 and the insertion thorns 413 can prevent the tumor from displacing in the segmentation process; the receiving film 420 can receive the tumor fragments, resulting in tumor implantation and dissemination.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims

1. A tumor cutting device, comprising:

the angle adjusting assembly is arranged in the inner cavity of the mounting cylinder and connected with the cutter handle of the blade, and the angle adjusting assembly can drive the blade to rotate in a direction close to or far away from the drill rod in the axial plane of the drill rod;

the angle adjusting assembly comprises a driven gear, a toggle gear, a rack and a mounting wheel, the driven gear is arranged at the end part of the cutter handle, and the driven gear can be rotatably positioned in the first side hole through a rotating shaft; a second side hole is formed in the side wall of one end, far away from the drill bit, of the outer cylinder, the toggle gear is rotatably arranged in the second side hole, and the position of the toggle gear is exposed out of the second side hole; the two installation wheels are arranged in the containing cavity along the axial direction of the installation cylinder at intervals and can rotate, the rack can be slidably sleeved on the two installation wheels, one end of the rack is meshed with the shifting gear, and the other end of the rack is meshed with the driven gear.

2. The tumor cutting device of claim 1, wherein the blade comprises a first blade piece, a second blade piece, and a detent; the first cutter body piece is arranged in a hollow mode, and the second cutter body piece is inserted into the first cutter body piece in a sliding mode; the cutter handle is arranged on the first cutter body piece and is positioned at one end far away from the second cutter body piece; the screens ware sets up the back of a knife face of first blade piece to can extend to the back of a knife face joint with the second blade piece in the inner chamber of first blade piece.

3. The tumor cutting device according to claim 2, wherein the blade back of the first blade piece is provided with a pin hole communicated with the inner cavity of the first blade piece, and the blade back of the second blade piece is provided with a plurality of grooves at intervals along the length direction of the second blade piece; the clamping device is arranged on the knife back of the first knife body piece; the clamping device comprises a support shaft, a pressure lever, a positioning pin and an elastic piece; the supporting shaft is arranged on the knife back through a bracket; the middle part of the pressure lever is rotatably sleeved on the support shaft; the positioning pin is located one end of the pressing rod, the positioning pin penetrates through the pin hole and can be inserted into one of the grooves, the elastic piece is located at the other end of the pressing rod, one end of the elastic piece is fixed on the pressing rod, and the other end of the elastic piece is connected with the knife back of the first blade piece.

4. Tumor cutting device according to any one of claims 1-3, characterized in that the outer diameter of the outer cylinder is smaller than or equal to the largest diameter of the drill head.

5. The tumor cutting apparatus according to claim 1, further comprising a support assembly, the support assembly comprising a spacer; the bottom surface of the cushion block is a plane, and the top surface of the cushion block is an inwards concave arc-shaped surface.

6. The tumor cutting device according to claim 5, wherein a plurality of insertion thorns are arranged on the arc-shaped surface at intervals.

7. The tumor cutting device according to claim 5 or 6, wherein an avoiding hole is formed in the middle of the arc-shaped surface of the cushion block, and the depth of the avoiding hole is greater than the height of the drill bit.

8. The tumor cutting device according to claim 7, wherein the supporting member further comprises a receiving membrane, which is a flexible membrane, disposed on an outer side wall of the cushion block and extending around.