CN108852505A - Intracavitary destination organization cutter - Google Patents
Intracavitary destination organization cutter Download PDFInfo
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- CN108852505A CN108852505A CN201811061088.2A CN201811061088A CN108852505A CN 108852505 A CN108852505 A CN 108852505A CN 201811061088 A CN201811061088 A CN 201811061088A CN 108852505 A CN108852505 A CN 108852505A
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- 230000008520 organization Effects 0.000 title claims abstract description 41
- 238000005520 cutting process Methods 0.000 claims abstract description 285
- 230000023597 hemostasis Effects 0.000 claims description 9
- 230000007246 mechanism Effects 0.000 claims description 9
- 238000009826 distribution Methods 0.000 claims description 8
- 239000011148 porous material Substances 0.000 claims description 8
- 230000015271 coagulation Effects 0.000 claims description 6
- 238000005345 coagulation Methods 0.000 claims description 6
- 238000005481 NMR spectroscopy Methods 0.000 claims description 4
- 125000004122 cyclic group Chemical group 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
- 230000006978 adaptation Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 8
- 230000017531 blood circulation Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 206010020718 hyperplasia Diseases 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 210000003445 biliary tract Anatomy 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 210000004204 blood vessel Anatomy 0.000 description 2
- 230000004087 circulation Effects 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 230000003902 lesion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000003708 urethra Anatomy 0.000 description 2
- 206010007687 Carotid artery stenosis Diseases 0.000 description 1
- 208000000059 Dyspnea Diseases 0.000 description 1
- 206010013975 Dyspnoeas Diseases 0.000 description 1
- 208000037062 Polyps Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 210000000941 bile Anatomy 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000009534 blood test Methods 0.000 description 1
- 210000000621 bronchi Anatomy 0.000 description 1
- 208000006170 carotid stenosis Diseases 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002872 contrast media Substances 0.000 description 1
- 208000029078 coronary artery disease Diseases 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 230000001613 neoplastic effect Effects 0.000 description 1
- 230000001575 pathological effect Effects 0.000 description 1
- 230000035755 proliferation Effects 0.000 description 1
- 210000002345 respiratory system Anatomy 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
- 230000028327 secretion Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- 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
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
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- 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
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
-
- 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
- A61B2018/00601—Cutting
-
- 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
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B2018/1405—Electrodes having a specific shape
- A61B2018/144—Wire
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Otolaryngology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Plasma & Fusion (AREA)
- Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
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- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The present invention relates to a kind of cutter, especially a kind of intracavitary destination organization cutter belongs to the technical field of medical instrument.According to technical solution provided by the invention, the intracavitary destination organization cutter, including interior bar and the outer tube being sheathed in the interior bar, the outer tube can the length direction in interior bar along the interior bar move;It further include the cutting body that intracavitary destination organization can be cut, the first connecting pin of cutting of the cutting body and the head end of outer tube connect, and the cutting second connection end of cutting body and the head end of interior bar connect, and the cutting second connection end is located at the outside of outer tube head end;Outer tube is moved with respect to interior bar, and to cut the first connecting pin and cut second connection end it is close to each other when, cutting physical efficiency arches upward arc-shaped, and the cutting physical efficiency of the arc is utilized to carry out required cutting to destination organization.Structure of the invention is compact, can effectively realize the cutting to intracavitary destination organization, wide adaptation range is easy to use, securely and reliably.
Description
Technical field
The present invention relates to a kind of cutter, especially a kind of intracavitary destination organization cutter belongs to the technology of medical instrument
Field.
Background technique
It when some cavity internal cause lesion hyperplasia of human body, can lead to that cavity is narrow or even cavity blocking, seriously affect human body machine
Energy.Hemadostewnosis caused by lumen of vessels inner wall destination organization, such as:Coronary heart disease, carotid artery stenosis etc..Target in tracheal bronchus
Expiratory dyspnea caused by tissue, such as:Tracheobronchial stenting is prayed caused by scar hyperplasia narrow etc. after tracheotomy healing.
Urethra damages ankylurethria etc. caused by adhesion because of inner wall.Abnormal bile secretion caused by biliary tract polyp etc..Alimentary canal inner wall increasing
Life leads to neoplastic lesion etc..
It, can be under the conditions of visual to destination organization because of the development of video technique in urethra, respiratory tract, alimentary canal, biliary tract
It is handled.But existing handling implement, such as:U-shaped knife, T-type knife, because cutting movement direction is consistent with cavity long axis, when cutting, is grasped
It is extremely inconvenient to make, and it is larger which grasps difficulty.When clinic needs a kind of cutting process, cutting movement direction and cavity long axis side
To vertical cutting tool.But since interior arthroscopic diagnosis tool is both needed to be placed in by endoscopic technic hole, operation tool must be able to lead to
Endoscopic technic hole is crossed, operation tool outer diameter is necessarily less than endoscopic technic hole internal diameter.Cutting tool is vertical with operation cavity, Shi Bizeng
Add effective outer diameter of operation tool, it is difficult to realize, clinical at present to lack this implementation tool.
Meanwhile it visually cannot achieve substantially because blood flow exists at Endovascular, can only position indirectly, that is, intervene
Under the conditions of to lumen of vessels inject contrast agent, meanwhile, using large size development instrument intravascular state is judged indirectly.Current blood vessel
The important medical treatment scheme of hyperplasia is to place bracket in narrow positions, struts the cavity of narrow positions.But before placing bracket,
Need to internal object tissue to narrow positions carry out longitudinally cutting, can sufficiently strut narrow positions chamber convenient for placing bracket after-poppet
Road.For cutting tool when narrow positions is cut in expansion, completely plugged intravascular space hinders narrow positions blood flow temporarily at present
It is disconnected, patient's discomfort is increased, operation risk is increased.For safety, Invasive Technology Department doctor need to shorten the bloodstream blocking time as far as possible, contracting
Short operating time, substantially increases operating difficulty.Clinic needs one kind when cutting to hemadostewnosis position, is also able to maintain blood flow
The crack cutting tool of circulation.
Summary of the invention
The purpose of the present invention is overcoming the deficiencies in the prior art, a kind of intracavitary destination organization cutter is provided,
It is compact-sized, it can effectively realize the cutting to intracavitary destination organization, wide adaptation range is easy to use, securely and reliably.
According to technical solution provided by the invention, the intracavitary destination organization cutter, including interior bar and it is sheathed on institute
State the outer tube in interior bar, the outer tube can the length direction in interior bar along the interior bar move;
It further include the cutting body that intracavitary destination organization can be cut, the first connecting pin of cutting of the cutting body and outer tube
Head end connection, the cutting second connection end of cutting body and the head end of interior bar connect, and the cutting second connection end is located at outer tube head
The front at end;
Outer tube with respect to interior bar move, and make cut the first connecting pin and cut second connection end it is close to each other when, cutting
Physical efficiency arch upward it is arc-shaped, utilize the arc cutting physical efficiency to destination organization carry out needed for cutting;
Outer tube is moved with respect to interior bar, and to cut the first connecting pin and cut second connection end when being located remotely from each other, cutting
Physical efficiency gradually flattens directly, so that cutting body is close to interior bar outer wall.
The cutting body includes several elastic cutting rods on the outside of interior rod head end, the cutting first of the elasticity cutting rod
Connecting pin is fixedly connected with the head end of outer tube, and the cutting second connection end of elastic cutting rod is fixedly connected with the head end of interior bar.
The cutting body includes elasticity cutting conductive bar and the connection for being electrically connected with the elasticity cutting conductive bar
Plug, the first connecting pin of cutting of the elasticity cutting conductive bar and the head end of outer tube connect, the cutting of elasticity cutting conductive bar
The connection of the head of second connection end and interior bar, and the first connecting pin of cutting of elasticity cutting conductive bar, cutting second connection end point
Not Wei Yu interior rod axis two sides;
It is connect by connection plug with electric knife power supply and the first connecting pin of cutting of elasticity cutting conductive bar, cutting second connects
Connect end it is close to each other when, using elasticity cutting conductive bar can to destination organization carry out cutting cut;
It further include the hemostasis connection plug being electrically connected with the elasticity cutting conductive bar, by stopping blooding, connection plug can make
Elasticity cutting conductive bar can be with coagulation power electric connection.
The interior bar head setting cutting connection limit body, elasticity cutting conductive bar cutting second connection end with cut
Connection limit body connection is cut to utilize when the first connecting pin of cutting of elasticity cutting conductive bar, cutting second connection end are close to each other
Relative movement between the internal bar of cutting connection limit physical efficiency and outer tube is limited;The shape packet of the cutting connection limit body
It includes blocky or cyclic annular.
The positioning body that can develop under x-ray and nuclear magnetic resonance is arranged in the head of the interior bar or the head end of outer tube.
Several interior rod aperture are also set up on the head of the interior bar, the interior rod aperture is connect with interior bar, and the tail end of interior bar is also set
Set interior bar connector;The head setting of the outer tube penetrates through the outer pore of the outer tube wall, the outer pore and interior rod aperture phase
Connection.
The length of interior bar Yu outer tube relative motion distance is used to indicate in the side wall setting that the interior bar tail portion is pierced by outer tube
Scale indicates the move distance between interior bar and outer tube by length scale, can determine that the radian of cutting body arc.
The length of elastic cutting rod is different, and elastic cutting rod is according to length change profile in the outside of interior rod head end;Outer tube
Opposite interior bar moves, and to cut the first connecting pin and cut second connection end it is close to each other when, the elasticity of all arcs is cut
It cuts item and forms spherical shape in the head end of interior bar.
It further include for by the connection locking mechanism of outer tube and interior bar mutually locking.
Setting allows the perforative interior bar pilot hole of guide wire in the interior bar, and the interior bar pilot hole runs through interior bar.
Advantages of the present invention:The first connecting pin of cutting of the cutting body and the head end of outer tube connect, the cutting of cutting body
The connection of the head end of second connection end and interior bar, the cutting second connection end are located at the outside of outer tube head end;Outer tube is with respect to interior bar
Movement, and to cut the first connecting pin and cut second connection end it is close to each other when, cutting physical efficiency arches upward arc-shaped, utilizes institute
The cutting physical efficiency for stating arc carries out required cutting to destination organization;It can effectively realize the cutting to intracavitary destination organization, utilize
The different of cutting body implement structure, adapt to the cutting needs of different situations, wide adaptation range is easy to use, securely and reliably.
Detailed description of the invention
Fig. 1 is schematic diagram of the cutting body of the present invention using elastic cutting rod.
Fig. 2 is that elastic cutting rod arches upward arc-shaped schematic diagram in Fig. 1.
Fig. 3 is the schematic diagram that guide wire putting hole is arranged in the present invention in interior bar.
Fig. 4 is schematic diagram of the cutting body of the present invention using elasticity cutting conductive bar.
Fig. 5 is that elasticity cutting conductive bar arches upward arc-shaped schematic diagram in Fig. 4.
Fig. 6 is the schematic diagram of rod aperture in the present invention is arranged in interior bar.
Fig. 7 is that elasticity cutting conductive bar arches upward arc-shaped schematic diagram in Fig. 6.
Fig. 8 is the elastic cutting rod of this present invention another distribution schematic diagram in interior bar.
Fig. 9 is schematic shapes of the elastic cutting rod in interior rod head end of arc in Fig. 8.
Description of symbols:1- outer tube, 2- interior bar, 3- elasticity cutting rod, 4- locking bolt, 5- outer tube handle, rod handle in 6-,
7- increases the portion that rubs, 8- cutting coagulates connection plug connection cables, 9- connection plug, 10- interior bar connector, 11- hemostasis connection plug connect
Wiring cable, 12- hemostasis connection plug, 13- cutting connection limit body, rod aperture and 15- elasticity cutting conductive bar and 16- in 14-
Interior bar pilot hole.
Specific embodiment
Below with reference to specific drawings and examples, the invention will be further described.
In order to effectively realize the cutting to intracavitary destination organization, the present invention includes interior bar 2 and is sheathed on the interior bar 2
On outer tube 1, the outer tube 1 can the length direction in interior bar 2 along the interior bar 2 move;
It further include the cutting body that intracavitary destination organization can be cut, the first connecting pin of cutting of the cutting body and outer tube 1
Head end connection, the cutting second connection end of cutting body connect with the head end of interior bar 2, and the cutting second connection end is located at outer tube
The front of 1 head end;
Outer tube 1 with respect to interior bar 2 move, and make cut the first connecting pin and cut second connection end it is close to each other when, cut
Cut physical efficiency arch upward it is arc-shaped, utilize the arc cutting physical efficiency to destination organization carry out needed for cutting;
Outer tube 1 is moved with respect to interior bar 2, and to cut the first connecting pin and cut second connection end when being located remotely from each other, and is cut
It cuts physical efficiency gradually to flatten directly, so that cutting body is close to 2 outer wall of interior bar.
Specifically, outer tube 1, interior bar 2 and cutting body are both needed to be made of the material for meeting medical standard, the length of interior bar 2
Degree is greater than the length of outer tube 1,1 set of outer tube in interior bar 2, be in coaxial distribution between outer tube 1 and interior bar 2, the internal diameter of outer tube 1 is bigger
In the outer diameter of interior bar 2, to can be mutually shifted between outer tube 1 and interior bar 2, the length direction of outer tube 1 and the length direction of interior bar 2
It is consistent, outer tube 1 be located at the head end of interior bar 2, interior bar 2 tail end between.
Cutting body has the first connecting pin of cutting and cutting second connection end, and the first connecting pin of cutting and cutting second connect
It connects end to correspond to, the first connecting pin of cutting is connect with the head end of outer tube 1, the cutting second connection end of cutting body and the head end of interior bar 2
Connection, since the head end of interior bar 2 is located at the outside of 1 head end of outer tube, cutting second connection end is located at the outer of 1 head end of outer tube
Side.
When mutually being moved between outer tube 1 and interior bar 2, it can to cut the first connecting pin and cut between second connection end
Mutually adjacent or separate, when cutting the first connecting pin and cutting second connection end is close to each other, cutting physical efficiency arches upward to form arc
Shape cuts intracavitary destination organization using the cutting physical efficiency of arc, improves the convenience of cutting operation.
Outer tube 1 is moved with respect to interior bar 2, and to cut the first connecting pin and cut second connection end when being located remotely from each other, and is cut
It cuts physical efficiency gradually to flatten directly, so that cutting body is close to 2 outer wall of interior bar.Cutting body close to or after being attached on the outer wall of interior bar 2, energy
The outer diameter of entire cutting body is reduced, thus after the completion of cutting, convenient for outer tube 1, interior bar 2 are exited out of cutting cavity.Mesh
Marking tissue can be pathological tissues, proliferation or normal tissue, be determined with specific reference to the needs actually cut.
As depicted in figs. 1 and 2, the cutting body includes several elastic cutting rods being evenly distributed on the outside of 2 head end of interior bar
3, the first connecting pin of cutting of the elasticity cutting rod 3 is fixedly connected with the head end of outer tube 1, the cutting second of elastic cutting rod 3
Connecting pin is fixedly connected with the head end of interior bar 2.
In the embodiment of the present invention, elastic cutting rod 3 is made in bar shaped and using elastic material, i.e., elastic cutting rod 3 can be real
It now arches upward and shrinks, elastic cutting rod 3 is evenly distributed on the outside on 2 head of interior bar, the first connecting pin of cutting of elastic cutting rod 3
It is connect with the head end of outer tube 1, the cutting second connection end of elastic cutting rod 3 is connect with the head end of interior bar 2, so that elasticity is cut
The length direction for cutting item 3 is consistent with the length direction of interior bar 2.It is shown in Fig. 1 and Fig. 2, is arranged four on the head of interior bar 2
The case where equally distributed elasticity cutting rod 3.
When the first connecting pin of cutting of elastic cutting rod 3 and the cutting second connection end of the elastic cutting rod 3 are mutually leaned on
When close, elastic cutting rod 3 can arch upward arc-shaped, and using the contact of elastic cutting rod 3 and intracavitary destination organization, being able to achieve will be intracavitary
Destination organization struts, and achievees the purpose that cut intracavitary destination organization.After the completion of cutting, it is only necessary to so that interior bar 2 and outer tube 1
Relative motion again, so that the cutting second connection end of the first connecting pin of cutting of elastic cutting rod 3 and the elastic cutting rod 3
It is located remotely from each other.When the first connecting pin of cutting of cutting rod 3 and cutting second connection end are located remotely from each other, cutting rod 3 is by encircleing
The arc risen becomes bar shaped, convenient for removing entire elastic cutting rod 3, interior bar 2 and outer tube 1 out of cavity that cut.
In addition, when being cut using elastic cutting rod 3, it is required that keeping stablizing between interior bar 2 and outer tube 1, i.e.,
It further include for by the connection locking mechanism of outer tube 1 and 2 mutually locking of interior bar, the connection locking mechanism can be using locking spiral shell
Bolt 4, locking bolt 4 in interior bar 2, the corresponding tail portion of outer tube 1, using locking bolt 4 can by interior bar 2 and 1 mutually locking of outer tube,
To guarantee mutually rotate between interior bar 2 and outer tube 1.Generally, in locking, locking bolt 4 can be with after passing through outer tube 1
Interior bar 2 contacts, after tightening locking bolt 4, the locking that is able to achieve between outer tube 1 and interior bar 2.Certainly, connection locking mechanism may be used also
With use other forms, as between outer tube 1 and interior bar 2 use helicitic texture connect, the helicitic texture can make outer tube 1 with it is interior
When relatively rotating between bar 2, outer tube 1, the corresponding linear motion of interior bar 2 can be converted to, helicitic texture specifically can be using existing
There is common structure type, details are not described herein again.When it is implemented, can be arched upward to elastic cutting rod 3 using connection locking mechanism
The state of arc is controlled, that is, can control the radian for the arc that arches upward.It rubs portion 7 in addition, also setting up increasing in the tail portion of interior bar 2, benefit
With increasing rub portion 7 can increasing friction force, convenient for the mobile cooperation between interior bar 2 and outer tube 1.
As shown in Figure 4 and Figure 5, the cutting body includes elasticity cutting conductive bar 15 and leads for cutting with the elasticity
The connection plug 9 that electric item 15 is electrically connected, the first connecting pin of cutting of the elasticity cutting conductive bar 15 and the head end of outer tube 1 connect
It connects, the cutting second connection end of elasticity cutting conductive bar 15 is connect with the head of interior bar 2, and the cutting of elasticity cutting conductive bar 15
First connecting pin, cutting second connection end are located at the two sides of 2 axis of interior bar;
It is connect by connection plug 9 with electric knife power supply and the first connecting pin of cutting of elasticity cutting conductive bar 15, cutting the
When two connecting pins are close to each other, cutting can be carried out to destination organization using elasticity cutting conductive bar 15 and cut.
In the embodiment of the present invention, elasticity cutting conductive bar 15 is made of material that can be conductive, elasticity cutting conductive bar 15
The first connecting pin of cutting, cutting second connection end distribution be located at the two sides of 2 axis of interior bar, i.e., elasticity cutting conductive bar 15 is in inclining
Tiltedly distribution, the length direction of elasticity cutting conductive bar 15 and the length direction of interior bar 2 have angle.
Connection plug 9 can be electrically connected by connection plug connection cables 8 with elasticity cutting conductive bar 15, pass through connection plug
9 can connect with external electric knife power supply, after connection plug 9 and electric knife power electric connection, can make elasticity cutting conductive bar 15
Characteristic with electric knife, so as to enable elasticity cutting conductive bar 15 to be cut as electric knife.Certainly, in cutting,
It is required that relative motion between interior bar 2 and outer tube 1, so that the first connecting pin of cutting of elasticity cutting conductive bar 15, cutting the
Two connecting pins are mutually adjacent, arch upward after forming arc, can effectively realize the cutting to destination organization.When cut the first connecting pin,
When cutting second connection end is located remotely from each other, elasticity cutting conductive bar 15 can be close to the outer wall on 2 head of interior bar.It is similar to the above,
After the completion of cutting, it is required that cutting the first connecting pin, cutting second connection end be located remotely from each other, convenient for interior bar 2, outer tube 1 and
Elasticity cutting conductive bar 15 is exited out of cavity.
In addition, further including the hemostasis connection plug 12 being electrically connected with the elasticity cutting conductive bar 15, connected by hemostasis
Plug 12 can enable elasticity to cut conductive bar 15 and coagulation power electric connection.In the embodiment of the present invention, connection plug 12 of stopping blooding
It is electrically connected by having a blood test connection plug connection cables 11 with elasticity cutting conductive bar 15, passes through hemostasis connection plug 12 and outside
Coagulation power electric connection can make elasticity cutting conductive bar 15 have electricity after connection plug 12 of stopping blooding is connect with coagulation power supply
Solidifying characteristic, so that using the elasticity cutting conductive bar 15 with coagulation characteristic hemostasis operation can be carried out to the position after cutting.
When carrying out hemostasis operation, elasticity cutting conductive bar 15 is also required to arch upward arc-shaped.
Further, in the head of the interior bar 2 setting cutting connection limit body 13, the cutting of elasticity cutting conductive bar 15
Second connection end and cutting connection limit body 13 connect, and the first connecting pin of cutting of elasticity cutting conductive bar 15, cutting second connect
Connect end it is close to each other when, using cutting connection limit body 13 relative movement between interior bar 2 and outer tube 1 can be limited.
In the embodiment of the present invention, the shape of the cutting connection limit body 13 includes blocky or cyclic annular.Cutting connection limit
Body 13 is connected in the head of interior bar 2, the cutting second connection end and cutting connection limit body 13 of elasticity cutting conductive bar 15, thus
Realize that the connection of the cutting second connection end and interior bar 2 of elasticity cutting conductive bar 15 cooperates.13 energy of limit body is connected using cutting
Movement between interior bar 2 and outer tube 1 is limited, avoids the cutting second connection end by elasticity cutting conductive bar 15 from entering outer
In pipe 1.
As shown in Figure 6 and Figure 7, several interior rod aperture 14, the interior rod aperture 14 and interior bar are also set up on the head of the interior bar 2
2 connections, the tail end of interior bar 2 also set up interior bar connector 10.
In the embodiment of the present invention, when the rod aperture 14 in the head end of interior bar 2 is arranged, there is hollow tubulose in interior bar 2,
Interior bar connector 10 is arranged in the tail end of interior bar 2, can form the effect for attracting or rinsing by interior rod aperture 14, when realization sucking action
When, interior bar connector 10 is inhaled equipment with negative pressure and is connect;When that need to realize the effect of flushing, interior bar connector 10 and flushing device connect
It connects.
Further, the head setting of the outer tube 1 penetrates through the outer pore of 1 tube wall of outer tube, the outer pore with it is interior
Rod aperture 14 is connected.
In the embodiment of the present invention, outer pore can be connected with interior rod aperture 14, when the destination organization in cutting vessel, utilize
The cooperation of interior rod aperture 14 and outer pore, will not influence the circulation of vessel inner blood.
Outer tube handle 6 is arranged in the tail end of the outer tube 1, and interior rod handle 5 is arranged in the tail portion of interior bar 2.It can conveniently be taken using interior rod handle 5
Interior bar is held, holding outer tube 1 can be facilitated using outer tube handle 6.In addition, further including for by the connection of outer tube 1 and 2 mutually locking of interior bar
Locking mechanism, the connection locking mechanism is consistent with the connection locking mechanism effect in above-mentioned Fig. 1, Fig. 1, can specifically refer to
Above-mentioned explanation, details are not described herein again.
As shown in figure 3, setting allows the perforative interior bar pilot hole 16 of guide wire, the interior bar pilot hole in the interior bar 2
16 run through interior bar 2.In the embodiment of the present invention, interior bar pilot hole 16 is located at the center of interior bar 2, and interior bar pilot hole 16 runs through interior bar
2, being able to achieve the guide wire that guide wire is placed in interior bar 2, and is placed in interior bar 2 using interior bar pilot hole 16 can be pierced by from interior bar 2,
Entire cutter is placed in required cavity to be facilitated using the guide wire in interior bar 2.
Further, what the setting of the head end of the head of the interior bar 2 or outer tube 1 can develop under x-ray and nuclear magnetic resonance determines
Position body.In the embodiment of the present invention, the head in interior bar 2 or the head end of outer tube 1 is can be set in positioning body, utilizes x-ray, nuclear magnetic resonance
When developing to positioning body, it is able to achieve outer tube 1, the positioning of interior bar 2 in the blood vessels.
Further, interior bar 2 and the opposite fortune of outer tube 1 are used to indicate in the side wall setting that 2 tail portion of interior bar is pierced by outer tube 1
The length scale of dynamic distance indicates the move distance between interior bar 2 and outer tube 1 by length scale, can determine that cutting body arc
Radian.
In the embodiment of the present invention, the tail portion of interior bar 2 is arranged in length scale, after 1 set of outer tube in interior bar 2, length scale
Outside the tail portion of outer tube 1.When relative motion between interior bar 2 and outer tube 1, by length scale can to interior bar 2, outer tube 1 it
Between relative motion distance indicated.Due to the groundworks parameter stability such as cutting body, when opposite between interior bar 2 and outer tube 1
When movement, the radian of cutting body arc, specific move distance and cutting body arc radian can be determined according to the move distance of instruction
Corresponding relationship be those skilled in the art known to, details are not described herein again.
Further, the tilt distribution of elastic cutting rod 3 is in the outside of 2 head end of interior bar;Outer tube 1 is moved with respect to interior bar 2, and
So that when the first connecting pin of cutting and cutting second connection end close to each other, the head of the elastic cutting rods 3 of all arcs in interior bar 2
End forms latticed after intersecting.
As shown in Figure 8 and Figure 9, for elastic 3 tilt distribution of cutting rod in the head end of interior bar 2, the length of elastic cutting rod 3 can be with
Elastic cutting rod 3 identical or using different length.When elastic cutting rod 3 is in straightened condition, elastic cutting body 3 is in interior bar 2
The inclined distribution of head end, when the length difference between elastic cutting rod 3, elastic cutting rod 3 can it is progressively longer according to length or
Gradually the mode of shortening is evenly distributed on the head end of interior bar 2, can be in the head end of interior bar 2 when all elastic cutting rods 3 are arc-shaped
Fenestral fabric is formed, it is described latticed including spherical or mesh sheet shape;Specifically, when the first connecting pin of cutting and cutting second connect
End is connect close to when elastic cutting rod 3 being made to arch upward arc-shaped, elastic cutting rod 3 can be spherical in shape after intersecting;When cutting first connects
End and cutting second connection end it is close to each other to maximum rating when, elastic cutting rod 3 can no matter spherical in shape in mesh sheet shape after intersecting
Or mesh sheet shape, it is able to achieve the cleaning to clot etc..Certainly, when the first connecting pin of cutting, cutting second connection end are located remotely from each other
When, elastic cutting rod 3 can still restore straightened condition, whole from exiting in cavity will not influence.
Claims (10)
1. a kind of intracavitary destination organization cutter, it is characterized in that:Including interior bar (2) and it is sheathed on outer on the interior bar (2)
It manages (1), the outer tube (1) can be mobile along the length direction of the interior bar (2) on interior bar (2);
It further include the cutting body that intracavitary destination organization can be cut, the first connecting pin of cutting and outer tube (1) of the cutting body
Head end connection, the cutting second connection end of cutting body are connect with the head end of interior bar (2), and the cutting second connection end is located at outer tube
(1) front of head end;
Outer tube (1) with respect to interior bar (2) move, and make cut the first connecting pin and cut second connection end it is close to each other when, cut
Cut physical efficiency arch upward it is arc-shaped, utilize the arc cutting physical efficiency to destination organization carry out needed for cutting;
Outer tube (1) is moved with respect to interior bar (2), and to cut the first connecting pin and cut second connection end when being located remotely from each other, and is cut
It cuts physical efficiency gradually to flatten directly, so that cutting body is close to interior bar (2) outer wall.
2. intracavitary destination organization cutter according to claim 1, it is characterized in that:The cutting body includes several in interior bar
(2) the elastic cutting rod (3) on the outside of head end, the first connecting pin of cutting of the elasticity cutting rod (3) and the head end of outer tube (1) are solid
Fixed connection, the cutting second connection end of elastic cutting rod (3) are fixedly connected with the head end of interior bar (2).
3. intracavitary destination organization cutter according to claim 1, it is characterized in that:The cutting body includes that elasticity cutting is led
Electric item (15) and the connection plug (9) for being used to be electrically connected with elasticity cutting conductive bar (15), the elasticity cutting conduction
The first connecting pin of cutting of item (15) is connect with the head end of outer tube (1), the cutting second connection end of elasticity cutting conductive bar (15)
It is connect with the head of interior bar (2), and position is distinguished in the first connecting pin of cutting of elasticity cutting conductive bar (15), cutting second connection end
In the two sides of interior bar (2) axis;
It is connect by connection plug (9) with electric knife power supply and the first connecting pin of cutting of elasticity cutting conductive bar (15), cutting the
When two connecting pins are close to each other, cutting can be carried out to destination organization using elasticity cutting conductive bar (15) and cut;
Further include the hemostasis connection plug (12) being electrically connected with elasticity cutting conductive bar (15), passes through connection plug of stopping blooding
(12) it can make elasticity cutting conductive bar (15) can be with coagulation power electric connection.
4. intracavitary destination organization cutter according to claim 3, it is characterized in that:It is arranged on the head of the interior bar (2)
Cutting connection limit body (13), the cutting second connection end of elasticity cutting conductive bar (15) and cutting connection limit body (13) are even
It connects, when the first connecting pin of cutting of elasticity cutting conductive bar (15), cutting second connection end are close to each other, utilizes cutting connection limit
Position body (13) can limit the relative movement between interior bar (2) and outer tube (1);The shape of cutting connection limit body (13)
Shape includes blocky or cyclic annular.
5. intracavitary destination organization cutter according to claim 4, it is characterized in that:The head of the interior bar (2) or outer tube
(1) positioning body that can develop under x-ray and nuclear magnetic resonance is arranged in head end.
6. the intracavitary destination organization cutter according to claim 3 or 4 or 5, it is characterized in that:Head in the interior bar (2)
Portion also sets up several interior rod aperture (14), and the interior rod aperture (14) connect with interior bar (2), and the tail end of interior bar (2) also sets up interior bar company
Connector (10);The head setting of the outer tube (1) penetrates through the outer pore of outer tube (1) tube wall, the outer pore and interior rod aperture
(14) it is connected.
7. intracavitary destination organization cutter according to claim 6, it is characterized in that:It is pierced by the interior bar (2) tail portion outer
The side wall setting of pipe (1) is used to indicate the length scale of interior bar (2) Yu outer tube (1) relative motion distance, is referred to by length scale
Show the move distance between interior bar (2) and outer tube (1), can determine that the radian of cutting body arc.
8. intracavitary destination organization cutter according to claim 2, it is characterized in that:The tilt distribution of elastic cutting rod (3)
In the outside of interior bar (2) head end;Outer tube (1) is moved with respect to interior bar (2), and the first connecting pin of cutting is connect with cutting second
When holding close to each other, the elastic cutting rod (3) of all arcs forms latticed after the head end of interior bar (2) intersects.
9. intracavitary destination organization cutter according to one of claims 1 to 5, it is characterized in that:It further include for by outer tube
(1) with the connection locking mechanism of interior bar (2) mutually locking.
10. intracavitary destination organization cutter according to claim 1, it is characterized in that:Setting allows to draw in the interior bar (2)
The perforative interior bar pilot hole (16) of seal wire, the interior bar pilot hole (16) run through interior bar (2).
Priority Applications (1)
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CN201811061088.2A CN108852505B (en) | 2018-09-12 | 2018-09-12 | Intra-cavity target tissue cutter |
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CN201811061088.2A CN108852505B (en) | 2018-09-12 | 2018-09-12 | Intra-cavity target tissue cutter |
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CN108852505A true CN108852505A (en) | 2018-11-23 |
CN108852505B CN108852505B (en) | 2024-08-30 |
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CN201811061088.2A Active CN108852505B (en) | 2018-09-12 | 2018-09-12 | Intra-cavity target tissue cutter |
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CN109730801A (en) * | 2018-12-19 | 2019-05-10 | 先健科技(深圳)有限公司 | Filter recyclable device |
CN113143582A (en) * | 2021-04-25 | 2021-07-23 | 江苏省人民医院(南京医科大学第一附属医院) | A pocket-shaped tool bit that is arranged in vitrectomy to protect nethike embrane |
CN113208701A (en) * | 2021-05-14 | 2021-08-06 | 刘晓瑞 | Tumor cutter |
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