CN110251230A - A kind of protective device for liver cancer ablative surgery - Google Patents
A kind of protective device for liver cancer ablative surgery Download PDFInfo
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- CN110251230A CN110251230A CN201910569344.7A CN201910569344A CN110251230A CN 110251230 A CN110251230 A CN 110251230A CN 201910569344 A CN201910569344 A CN 201910569344A CN 110251230 A CN110251230 A CN 110251230A
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- Prior art keywords
- sheath
- conduit
- water
- liver cancer
- open circuit
- Prior art date
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- 201000007270 liver cancer Diseases 0.000 title claims abstract description 20
- 208000014018 liver neoplasm Diseases 0.000 title claims abstract description 20
- 238000001356 surgical procedure Methods 0.000 title claims abstract description 18
- 230000001681 protective effect Effects 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 80
- 238000002347 injection Methods 0.000 claims abstract description 31
- 239000007924 injection Substances 0.000 claims abstract description 31
- 230000007246 mechanism Effects 0.000 claims abstract description 29
- 238000005192 partition Methods 0.000 claims abstract description 18
- 238000002955 isolation Methods 0.000 claims description 23
- 230000000968 intestinal effect Effects 0.000 abstract description 33
- 206010028980 Neoplasm Diseases 0.000 abstract description 28
- 238000002679 ablation Methods 0.000 abstract description 13
- 230000009286 beneficial effect Effects 0.000 abstract description 11
- 239000002775 capsule Substances 0.000 abstract description 9
- 230000001225 therapeutic effect Effects 0.000 abstract description 4
- 238000007912 intraperitoneal administration Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 8
- 210000000683 abdominal cavity Anatomy 0.000 description 7
- 238000009434 installation Methods 0.000 description 6
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 210000001519 tissue Anatomy 0.000 description 4
- 210000001015 abdomen Anatomy 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012943 hotmelt Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 210000004872 soft tissue Anatomy 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 210000004185 liver Anatomy 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 241000463219 Epitheca Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 210000000936 intestine Anatomy 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/1815—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using microwaves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
- A61B2018/00529—Liver
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00577—Ablation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/1815—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using microwaves
- A61B2018/1861—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using microwaves with an instrument inserted into a body lumen or cavity, e.g. a catheter
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/1815—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using microwaves
- A61B2018/1869—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using microwaves with an instrument interstitially inserted into the body, e.g. needles
Abstract
The present invention relates to a kind of protective devices for liver cancer ablative surgery; including conduit, sheath, open circuit mechanism and interrupter; cavity in conduit is separated into the water-injecting cavity that rear and front end open sheath lumen and two rear and front ends are all closed by partition; the front end of conduit is soft pyramidal structure, sets that there are two the water filling ports being connected to respectively with two water-injecting cavities on the side wall of conduit；The front end of sheath is tapered, and sheath is slidably mounted on that sheath is intracavitary, and the rear end of sheath slides into rear end and the positioning of sheath lumen when puncture, and the intracavitary front end to strut conduit of sheath is inserted into front end；Open circuit mechanism and interrupter are respectively separated are fixedly mounted on conduit along the longitudinal direction, and at least two water injection holes for being respectively communicated with one of water-injecting cavity and open a way mechanism and another water-injecting cavity and interrupter are provided on the side wall of conduit.The beneficial effects of the invention are as follows the ablations of tumour knurl completely, and therapeutic effect is preferable；It can effectively avoid the intestinal tube near damage Glisson's capsule when treating, protect intestinal tube.
Description
Technical field
The present invention relates to liver cancer treatment equipment technical fields, and in particular to a kind of protection dress for liver cancer ablative surgery
It sets.
Background technique
With the progress of modern science and technology and oncology, nearly ten years, domestic microwave tumour ablation technology achieves breakthrough
Progress.Microwave tumour ablation is to act on tissue using microwave energy to can produce fuel factor, at several minutes to ten several minutes
In time, up to 100 DEG C or more, tumor tissues are solidified under instantaneous high-temperature, inactivate thermal field central temperature, reach tumour and disappear
Melt the purpose for the treatment of.Microwave tumour ablation art is persistently to emit the lesion of microwave melt needle intervention tissue by its front end
Microwave energy, to implement to perform the operation, because its is high-efficient, wound is small, and controllable to the depth of interaction and range size of tissue, is applicable in
In the ablative surgery of whole body entity tumor.
Currently, Partial tumors knurl is close to Glisson's capsule, using existing liver cancer ablation apparatus during liver cancer ablation
During melting this Partial tumors knurl, since heat is excessively high, it is easy to damage the intestinal tube for closing on Glisson's capsule, so causing to melt
Not exclusively.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of protective device for liver cancer ablative surgery, structure letters
Single, completely, therapeutic effect is preferable for the ablation of tumour knurl；It can effectively avoid the intestinal tube near damage Glisson's capsule when treating, protect intestines
Pipe.
The technical scheme to solve the above technical problems is that
A kind of protective device for liver cancer ablative surgery, including conduit, sheath, open circuit mechanism and interrupter, institute
The cavity stated in conduit is separated into sheath lumen and two water-injecting cavities by partition, and the rear and front end of the sheath lumen is open, and two
The rear and front end of the water-injecting cavity is all closed, and the front end of the conduit is soft pyramidal structure, and the side wall of the conduit is equipped with
Two water filling ports being connected to respectively with two water-injecting cavities；The front end of the sheath is tapered, the installation of the sheath sliding
In the catheter lumen, when puncture the rear end of the sheath slide into rear end and the positioning of the catheter lumen, front end insertion is led
The front end of the conduit is strutted in lumen；The open circuit mechanism and the interrupter are respectively separated fixed peace along the longitudinal direction
In the sheath, at least two water injection holes, water injection hole described in wherein at least one point are provided on the side wall of the conduit
Not with water-injecting cavity described in one of them and the open circuit mechanism connection, in addition at least one water injection hole respectively with another
The water-injecting cavity is connected to the interrupter.
The beneficial effects of the present invention are: during puncturing, first, by fine needle puncture skin and soft tissue to abdominal cavity,
Fine needle is exited to arrange intestinal tube to intraperitoneal water filling simultaneously；Second, region is filled the water to abdominal cavity by coarse needle bioptic, is placed into and leads
Silk, exits bodkin；Third will expand sheath along seal wire insertion abdominal cavity, be repeated several times and extract out；4th, sheath is inserted into conduit,
And sheath is fixed, while strutting the front end of conduit；5th, whole device is intraperitoneal along seal wire insertion；6th, it pulls out and leads
Silk, by sheath to intraperitoneal water filling, pushes intestinal tube open；Water filling in 7th, Xiang Kailu mechanism is while past so that open circuit mechanism is heaved
It is horizontal to open circuit mechanism that sheath is pulled out outside, continues the water filling in sheath, and conduit is pushed to setting position；8th, to isolation machine
Water filling in structure separates intestinal tube and tumour knurl, so that subsequent microwave ablation is to eliminate tumour tumor so that interrupter is heaved
Body.The configuration of the present invention is simple, completely, therapeutic effect is preferable for the ablation of tumour knurl；It is attached to can effectively avoid damage Glisson's capsule when treatment
Close intestinal tube protects intestinal tube.
Based on the above technical solution, the present invention can also be improved as follows.
Further, the open circuit mechanism is open circuit sacculus, and the open circuit sacculus fixation is set in outside the sheath.
Beneficial effect using above-mentioned further scheme be by open circuit sacculus in fill the water so that open circuit sacculus heave,
To push intestinal tube open during sheath promotes, to damage intestinal tube.
Further, the interrupter is isolation sacculus, and the isolation sacculus fixing sleeve is located at outside the sheath.
Beneficial effect using above-mentioned further scheme be by the intracapsular water filling of batching sphere so that isolation sacculus is heaved,
To separate the intestinal tube near tumour knurl with tumour knurl, avoid damaging intestinal tube when subsequent microwave ablation.
Further, the rear end of the sheath is provided at least one clamping portion, and the rear end of the conduit is equipped at least one
With the bayonet of clamping portion cooperation, when puncture the rear end of the sheath slide into the rear end of the conduit, rotate the sheath
It is caught in the clamping portion in the corresponding bayonet, with positioning.
Beneficial effect using above-mentioned further scheme is that structure is simple, easy to operate, time saving and energy saving.
Further, water injection pipe is connected separately at two water filling ports.
Be easy for filling the water into two water-injecting cavities using the beneficial effect of above-mentioned further scheme, thus to open circuit sacculus and
The intracapsular water filling of batching sphere, so that open circuit sacculus and isolation sacculus are heaved, to protect intestinal tube.
Further, the quantity of the partition is two pieces, and two pieces of partitions are arranged in parallel, and the sheath lumen is located at two
Between a water-injecting cavity.
Beneficial effect using above-mentioned further scheme is that structure is simple, convenient for the installation of sheath and the note of two sacculus
Water.
Further, the quantity of the partition is two pieces, and the angle between two pieces of partitions is 60-90 °, the sheath lumen
Positioned at the same side of two water-injecting cavities.
Beneficial effect using above-mentioned further scheme is that structure is simple, convenient for the installation of sheath and the note of two sacculus
Water.
It further, further include the outer sheath of open at both ends, the outer sheath sliding is set in outside the conduit, and is wrapped
Wrap the open circuit mechanism, the interrupter.
Beneficial effect using above-mentioned further scheme is on the one hand outer sheath fixes two sacculus, is on the other hand convenient for wearing
Thorn, open circuit mechanism and interrupter are stuck in outside skin and cause sense of discomfort to patient when avoiding puncturing, while also increasing puncture
Difficulty.
It further, further include seal wire, the seal wire is slidably arranged in the sheath, and rear and front end is each passed through described
The rear and front end of sheath, and extending to outside the sheath, be respectively equipped on the rear and front end of the sheath with before the seal wire
The through-hole of both ends cooperation afterwards.
Beneficial effect using above-mentioned further scheme is to be convenient for for whole device being inserted into abdominal cavity of patients by seal wire, is kept away
Exempt from customs examination patient causes sense of discomfort.
Further, the quantity of the water injection hole be eight, wherein four water injection holes respectively with note described in one of them
Water cavity and the open circuit mechanism connection, four water injection holes in addition respectively with water-injecting cavity described in another and described machine is isolated
Structure connection.
Two sacculus are quickly heaved when being easy for water filling using the beneficial effect of above-mentioned further scheme, to preferably protect
Protect intestinal tube.
Detailed description of the invention
Fig. 1 is the structural schematic diagram when present invention starts puncture；
Fig. 2 is the structural schematic diagram that open circuit sacculus is heaved when the present invention punctures；
Fig. 3 is the structural schematic diagram that isolation sacculus is heaved when the present invention punctures；
Fig. 4 is that the present invention punctures the structural schematic diagram completed；
Fig. 5 is one of the structural schematic diagram of sheath lumen and the distribution of two water-injecting cavities in conduit of the present invention；
Fig. 6 is the second structural representation of sheath lumen and the distribution of two water-injecting cavities in conduit of the present invention；
Fig. 7 is the structural schematic diagram of conduit in the present invention；
Fig. 8 is the structural schematic diagram of conduit and sheath cooperation in the present invention；
Fig. 9 is the structural schematic diagram of sheath installation in the present invention.
In attached drawing, parts list represented by the reference numerals are as follows:
1, conduit, 2, sheath, 3, sheath lumen, 4, water-injecting cavity, 5, open circuit sacculus, 6, isolation sacculus, 7, bayonet, 8, water filling
Pipe, 9, partition, 10, outer sheath, 11, water filling port, 12, water injection hole, 13, liver, 14, tumour knurl, 15, seal wire, 16, through-hole.
Specific embodiment
Principles and features of the present invention are described below in conjunction with drawings and the specific embodiments, example is served only for solving
The present invention is released, is not intended to limit the scope of the present invention.
As shown in Figures 1 to 8, the present invention provides a kind of protective device for liver cancer ablative surgery, including conduit 1, sheath
Pipe 2, open circuit mechanism and interrupter, the cavity in conduit 1 are separated into sheath lumen 3 and two water-injecting cavities 4, partition 9 by partition 9
It is integrally formed with conduit 1, structure is simple；The rear and front end of sheath lumen 3 is open, and the rear and front end of two water-injecting cavities 4 is all closed,
The front end of conduit 1 is soft pyramidal structure, sets that there are two the water filling ports being connected to respectively with two water-injecting cavities 4 on the side wall of conduit 1
11.The front end of sheath 2 is tapered, and sheath 2 is slidably mounted in sheath lumen 3, and the rear end of sheath 2 slides into sheath when puncture
The front end for strutting conduit 1 is inserted into sheath lumen 3 in the rear end and positioning, front end of chamber 3；The mechanism that opens a way and interrupter are before
Rear direction, which is respectively separated, to be fixedly mounted on conduit 1, at least two water injection holes 12 is provided on the side wall of conduit 1, wherein at least
One water injection hole 12 respectively with one of water-injecting cavity 4 and open circuit mechanism connection, at least one water injection hole 12 in addition respectively with
Another water-injecting cavity 4 is connected to interrupter.During puncture, first, by fine needle puncture skin and soft tissue to abdominal cavity,
Fine needle is exited to arrange intestinal tube to intraperitoneal water filling simultaneously；Second, by coarse needle bioptic to intraperitoneal water filling region, merging is led
Silk 15, exits bodkin；Expansion sheath is punctured into abdominal cavity along seal wire 15 by third, is repeated several times and is extracted out；4th, sheath 2 is inserted
Enter in conduit 1, and sheath 2 is fixed, while strutting the front end of conduit 1；5th, whole device is inserted into abdomen along seal wire 15
It is intracavitary, pull out seal wire 15；6th, by sheath 2 to intraperitoneal water filling, push intestinal tube open, while post-tensioning sheath 2 makes conduit 1
Front end is in pigtail shape, is played a role convenient for subsequent open circuit sacculus 5；Water filling in 7th, Xiang Kailu mechanism is so that open circuit mechanism drum
It rises, while continuing the water filling in sheath 2, and conduit 1 is pushed to setting position；8th, into interrupter water filling so that every
Structure of disembarking is heaved, and intestinal tube and tumour knurl 14 are separated, so that subsequent microwave ablation is to eliminate tumour knurl 14.Knot of the present invention
Structure is simple, and tumour knurl 14 melts completely, and therapeutic effect is preferable；It can effectively avoid the intestinal tube near damage Glisson's capsule when treating,
Protect intestinal tube.
It should be noted that above-mentioned fine needle and bodkin be all made of is the prior art, commonly punctured using medical domain
Needle meets above-mentioned puncture requirement.
Embodiment 1
On the basis of above structure, in the present embodiment, in the present invention, water injection pipe is connected separately at two water filling ports 11
8, one end of water main 8 water filling port 11 by way of hot melt is fixed together, convenient for being filled the water into two water-injecting cavities 4,
To be filled the water into open circuit mechanism and interrupter, so that open circuit mechanism and interrupter are heaved, to protect intestinal tube.
It should be noted that the other end of water injection pipe 8 is communicated with water tank, water pump is also connected on each water injection pipe 8.
Embodiment 2
On the basis of example 1, in the present embodiment, open circuit mechanism is open circuit sacculus 5, and the open circuit fixation of sacculus 5 is arranged
Outside sheath 1, the mode that open circuit sacculus 5 generallys use hot melt is fixedly connected with sheath 1.In puncture process, by open circuit ball
Water filling in capsule 5, so that open circuit sacculus 5 is heaved, to push intestinal tube open during conduit promotes, to damage intestinal tube.
Embodiment 3
On the basis of example 1, in the present embodiment, interrupter is isolation sacculus 6, and the isolation fixation of sacculus 6 is arranged
Outside conduit 1, the mode that isolation sacculus 6 generallys use hot melt is fixedly connected with conduit 1.In puncture process, by batching sphere
Water filling in capsule 6, so that isolation sacculus 6 is heaved, to the intestinal tube near tumour knurl 14 be separated with tumour knurl 14, after avoiding
Intestinal tube is damaged when continuous microwave ablation.
It should be noted that since the effect of open circuit sacculus 5 is to push intestinal tube open during puncture, and sacculus 6 is isolated
Effect be to separate tumour knurl 14 with intestinal tube in puncture process, convenient for subsequent microwave ablation to eliminate tumour knurl 14, keep away
The diameter for exempting to damage intestinal tube, therefore sacculus 6 is isolated is greater than open circuit sacculus 5.
Embodiment 4
On the basis of example 1, in the present embodiment, the rear end of sheath 2 is provided at least one clamping portion, conduit 1
Rear end end is equipped with the bayonet 7 that at least one and clamping portion cooperate, and the rear end of sheath 2 slides into the rear end of conduit 1, rotation when puncture
Sheath 2 is caught in clamping portion in corresponding bayonet 7, simple in construction, easy to disassemble and assemble with positioning.
Preferably, in the present embodiment, above-mentioned clamping portion is preferably clamped bar, and there are two the bayonets 7 cooperated with clamping bar,
Two bayonets 7 are arranged along the radial symmetric of conduit 1, and are recessed by the back-end ports of conduit 1, and L-shaped.Sheath when puncture
2 rear end slides into the rear end of sheath lumen 3, and rotation sheath 2 is caught in clamping bar in bayonet 7, and with positioning, structure is simple, operation
Simplicity, it is time saving and energy saving.
Embodiment 5
On the basis of example 1, in the present embodiment, the quantity of partition 9 is two pieces, and two pieces of partitions 9 are parallel to each other and set
It sets, and is integrally formed with conduit 1, structure is simple；Sheath lumen 3 is located between two water-injecting cavities 4, convenient for sheath 2 installation and
The water filling of two sacculus.
Embodiment 5
On the basis of example 1, in the present embodiment, the quantity of partition 9 is two pieces, the angle between two pieces of partitions 9
It is 60-90 °, and is integrally formed with conduit 1, structure is simple；Sheath lumen 3 is located at the same side of two water-injecting cavities 4, is convenient for sheath 2
Installation and two sacculus water filling.
It should be noted that isolation sacculus 6 is preferentially connected to the biggish water-injecting cavity 4 of volume, convenient for quickly making that sacculus 6 is isolated
It heaves.
Embodiment 6
On the basis of above structure, the present embodiment includes the outer sheath 10 of open at both ends, the set that outer sheath 10 is slided
It is located at outside conduit 1, and wraps open circuit sacculus 5 and isolation sacculus 6.There are two the effects of outer sheath 10: on the one hand fixing two
Open circuit sacculus 5 and isolation sacculus 6 avoid open circuit sacculus 5 and isolation sacculus 6 when puncture from being stuck in skin on the other hand convenient for puncturing
Sense of discomfort is caused to patient outside, while also increasing the difficulty of puncture.
It should be noted that open circuit sacculus 5 and isolation sacculus 6 are wrapped in epitheca before whole device insertion is intraperitoneal
In pipe 10, post-tensioning outer sheath 10 after the completion of puncture exposes open circuit sacculus 5 and isolation sacculus 6.For the ease of 5 He of sacculus that will open a way
Isolation sacculus 6 is accommodated in again in outer sheath 10, and the inner wall of the front end of outer sheath 10 is designed smoother.
The invention also includes seal wire 15, seal wire 15 is slidably arranged in sheath 2, and rear and front end is each passed through sheath 2
Rear and front end, and extend to outside sheath 2, it is respectively equipped on the rear and front end of sheath 2 logical with the cooperation of the rear and front end of seal wire 15
Hole 16.
Preferably, in the present invention, the quantity of water injection hole 12 can be eight, wherein four water injection holes 12 are respectively and wherein
One water-injecting cavity 4 and open circuit mechanism connection, four water injection holes 12 in addition connect with another water-injecting cavity 4 and interrupter respectively
It is logical.Water injection hole 12 or six, wherein three water injection holes 12 respectively with one of water-injecting cavity 4 and mechanism connection of opening a way,
The other three water injection hole 12 is connected to another water-injecting cavity 4 and interrupter respectively, convenient for open circuit sacculus 5 when water filling and batching sphere
Capsule 6 is quickly heaved, to preferably protect intestinal tube.
It should be noted that above-mentioned eight water injection holes 12 are divided into two groups, two groups of water injection holes 12 can be located at the same of sheath 1
Side, and it is located at the upper left and lower right of 1 the same side of conduit；Or two groups of water injection holes 12 are located at conduit 1
Two sides, and be oppositely arranged, but the height of the two is different.
Working principle of the present invention is as follows:
During puncture, first, by fine needle puncture skin and soft tissue to abdominal cavity, while to intraperitoneal water filling, with
Intestinal tube is arranged, fine needle is exited；Second, pass through coarse needle bioptic to intraperitoneal water filling region；Seal wire 15 is inserted into abdomen along bodkin by third
It is intracavitary, exit bodkin；4th, expansion sheath is punctured into along seal wire 15 intraperitoneal, is repeated several times and extracts out；5th, by sheath 2
It is inserted into conduit 1, and sheath 2 is fixed, while strutting the front end of conduit 1；6th, whole device is inserted into along seal wire 15
It is intraperitoneal, pull out seal wire 15；7th, by sheath 2 to intraperitoneal water filling, push intestinal tube open, while post-tensioning sheath 2 makes conduit 1
Front end be in pigtail shape, play a role convenient for subsequent open circuit sacculus 5；8th, outer sheath 10 is pulled back, open circuit sacculus 5 is exposed,
And it is filled the water into open circuit sacculus 5, while continuing the water filling in sheath 2, and conduit 1 is pushed to setting position and (is swollen on liver 13
The position of tumor knurl 14), to push the intestinal tube promoted near path open；9th, continue to pull back outer sheath 10, exposes isolation sacculus
6, it fills the water into isolation sacculus 6 and is heaved so that sacculus 6 is isolated, intestinal tube and tumour knurl 14 are separated, so that subsequent microwave disappears
Melt to eliminate tumour knurl 14；
After tumour knurl 14 melts, the water opened a way in sacculus 5 and isolation sacculus 6 is extracted out, so that open circuit 5 He of sacculus
It is deflated that sacculus 6 is isolated, to outer sheath 10 is pushed forward, wraps open circuit sacculus 5 and isolation sacculus 6, then whole device is extracted and is suffered from
Person is external.
It should be noted that medical worker observes whether water enters abdomen by B ultrasound by sheath 2 to when intraperitoneal water filling
It is intracavitary.
In addition, above-mentioned fine needle and bodkin refer to common puncture needle, using the prior art.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of protective device for liver cancer ablative surgery, it is characterised in that: including conduit (1), sheath (2), open circuit mechanism
And interrupter, the cavity in the conduit (1) is separated into sheath lumen (3) and two water-injecting cavities (4) by partition (9), described
The rear and front end of sheath lumen (3) is open, and the rear and front end of two water-injecting cavities (4) is all closed, the front end of the conduit (1)
For soft pyramidal structure, set that there are two the water filling ports (11) being connected to respectively with two water-injecting cavities on the side wall of conduit；It is described
The front end of sheath (2) is tapered, and the sheath (2) is slidably mounted in the sheath lumen (3), when puncture the sheath (2)
Rear end slide into rear end and the positioning of the sheath lumen (3), front end is inserted into the sheath lumen (3) to strut the conduit
(1) front end；The open circuit mechanism and the interrupter are respectively separated along the longitudinal direction is fixedly mounted on the conduit (1)
On, it is provided at least two water injection holes (12) on the side wall of the conduit (1), water injection hole (12) described in wherein at least one is respectively
With water-injecting cavity described in one of them (4) and the open circuit mechanism connection, in addition at least one water injection hole (12) respectively with
Another described water-injecting cavity (4) is connected to the interrupter.
2. the protective device according to claim 1 for liver cancer ablative surgery, it is characterised in that: the open circuit mechanism is
It opens a way sacculus (5), open circuit sacculus (5) fixation is set in the conduit (1) outside.
3. the protective device according to claim 1 for liver cancer ablative surgery, it is characterised in that: the interrupter is
It is isolated sacculus (6), isolation sacculus (6) fixation is set in the conduit (1) outside.
4. the protective device according to claim 1 for liver cancer ablative surgery, it is characterised in that: the sheath (2)
Rear end is provided at least one clamping portion, and the rear end of the conduit (1) is equipped at least one bayonet cooperated with the clamping portion
(7), the rear end of the sheath (2) slides into the rear end of the conduit (1) when puncture, and rotating the sheath (2) makes the clamping
Portion is caught in the corresponding bayonet (7), with positioning.
5. the protective device according to claim 1 for liver cancer ablative surgery, it is characterised in that: two water filling ports
(11) water injection pipe (8) are connected separately at.
6. the protective device according to claim 1 for liver cancer ablative surgery, it is characterised in that: the partition (9)
Quantity is two pieces, and two pieces of partitions (9) are arranged in parallel, the needle lumen (3) be located at two water-injecting cavities (4) it
Between.
7. the protective device according to claim 1 for liver cancer ablative surgery, it is characterised in that: the partition (9)
Quantity is two pieces, and the angle between two pieces of partitions (9) is 60-90 °, and the sheath lumen (3) is located at two water-injecting cavities
(4) the same side.
8. the protective device according to claim 1-7 for liver cancer ablative surgery, it is characterised in that: further include
The outer sheath (10) of open at both ends, outer sheath (10) sliding is set in the conduit (1) outside, and wraps described open
Road mechanism, the interrupter.
9. the protective device according to claim 1-7 for liver cancer ablative surgery, it is characterised in that: further include
Seal wire (15), the seal wire (15) are slidably arranged in the sheath (2), and rear and front end is each passed through the sheath (2)
Rear and front end, and extend to the sheath (2) outside, it is respectively equipped on the rear and front end of the sheath (2) and the seal wire (15)
Rear and front end cooperation through-hole (16).
10. the protective device according to claim 1-7 for liver cancer ablative surgery, it is characterised in that: described
The quantity of water injection hole (12) be eight, wherein four water injection holes (12) respectively with water-injecting cavity described in one of them (4) and institute
State open circuit mechanism connection, the water injection hole (12) of four in addition respectively with water-injecting cavity described in another (4) and described machine is isolated
Structure connection.
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