CN104127211A - Flexible human organ expander - Google Patents
Flexible human organ expander Download PDFInfo
- Publication number
- CN104127211A CN104127211A CN201410393435.7A CN201410393435A CN104127211A CN 104127211 A CN104127211 A CN 104127211A CN 201410393435 A CN201410393435 A CN 201410393435A CN 104127211 A CN104127211 A CN 104127211A
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- Prior art keywords
- piece
- tension rope
- hole
- elastic yarn
- stationary pipes
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B17/0206—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors with antagonistic arms as supports for retractor elements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B17/0293—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors with ring member to support retractor elements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B17/0218—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors for minimally invasive surgery
- A61B2017/0225—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors for minimally invasive surgery flexible, e.g. fabrics, meshes, or membranes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/02—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors
- A61B2017/0287—Surgical instruments, devices or methods, e.g. tourniquets for holding wounds open; Tractors with elastic retracting members connectable to a frame, e.g. hooked elastic wires
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
The invention discloses a flexible human organ expander which comprises a fixed pipe, expanding rod components, a connecting ring, a tensioning rope and an elastic wire. The fixed pipe, the expanding rod components, the connecting ring, the tensioning rope and the elastic wire are connected in sequence. The expanding rod components are evenly distributed around the axis of the fixed pipe. Three small holes are respectively formed in a connecting block, transition blocks, a middle block, acting blocks and an ending block in each expanding rod component, and the tensioning rope and the elastic wire penetrate through the small holes. One end of the tensioning rope is fixed with one ending block and connects the connecting ring and the ending block together, then the tensioning rope penetrates through the whole expanding rod components, and finally the tensioning rope penetrates out of a small hole of the fixed pipe. The elastic wire is folded to be in a U shape, the two ends of the elastic wire respectively penetrate through the whole expanding rod components, and finally the elastic wire penetrates out of small holes of the fixed pipe. In the work process, the fixed pipe is fixed, the tensioning rope and the elastic wire are tensioned, expanding rods can be bent to a certain shape, the expanding rods form a space body, and the human organ is expanded. A channel is formed in the fixed pipe, and allows a surgical instrument or an endoscope or other tools to enter the organ for the operation.
Description
Technical field
The invention belongs to medical instruments field, specifically, relate to a kind of flexible human organ dilator.
Background technology
Since 20th century, along with people have proposed more and more higher requirement to self-disease clinical means, the particularly formation and development of minimally invasive surgery, medical circle proposes so-called Wicresoft should possess that operation wound is little, cicatrix is light, recover the feature such as fast, being showing improvement or progress day by day of robotics and related discipline, the a collection of micro-wound operation robot that can replace in varying degrees operative doctor produces thereupon, completes Minimally Invasive Surgery become a reality with operating robot.
Nineteen ninety-five, the auspicious Derek of good fortune and US National Aeronautics and Space Administration and Stanford Research Institute have set up Intuitive Surgical company cooperatively, and have manufactured " Leonardo da Vinci (Da Vinci) " robotic surgical system." Leonardo da Vinci " robotic surgical system is after the market authentication of in July, 2000 by food and drug administration, become the robotic surgical system that first set can formally be used in hospital operating room in the world, it is mainly used in abdominal operation in early days, has experienced little otch, chamber mirror, the improvement in three gradual stages of acoustic control chamber mirror and has also progressively been applied in clinical cardiac operation later.Open with traditional center the difference of implementing operation on heart under breast, extracorporeal circulation and be, robotic surgery can be realized " Wicresoft " to the full extent.Leonardo da Vinci performs the operation and has represented the technology of current minimal invasive cardiac surgery forefront.Since then, countries in the world competitively develop the Minimally Invasive Surgery apparatus for each surgical field, more and more advanced, accurate surgery systems is just progressively applied in operating room, Minimally Invasive Surgery apparatus flourish advanced the revolution of modern surgery operation.
Yet in the research of numerous minimally invasive surgery systems, how people are placed on research center the size of Reduction surgery apparatus mostly, increase the motility of mechanical hand etc., and have ignored the research of organ expansion.What employing was more at present is by gas, liquid and other medium, organ to be expanded, but by gas, liquid and other medium, the indices of human body is had to very high requirement, and easily occurs some negative effects, and human body is produced to injury.
Summary of the invention
Technical problem: the invention provides a kind of employing mechanical means human organ is expanded, can meet the needs of Minimally Invasive Surgery, the design of employing compliant mechanism, thus dilator in process of expansion is dropped to minimum flexible human organ dilator to the injury of human organ.
Technical scheme: flexible human organ dilator of the present invention, comprise stationary pipes, connecting ring, be arranged on a plurality of bar assemblies that strut between described stationary pipes and connecting ring, connecting ring is coaxial with stationary pipes, a plurality of bar assemblies that strut are symmetrical arranged centered by the axis of stationary pipes, also comprise and run through elastic yarn and the tension rope that struts bar assembly, stationary pipes center is instrument channel, elastic yarn and tension rope run through strut bar assembly after respectively through elastic yarn through hole and tension rope through hole in instrument channel circumferential edge in stationary pipes;
Strutting bar assembly comprises contiguous block, transition block, intermediate mass, the effect piece connecting successively and stops piece, contiguous block is positioned at the one end in abutting connection with stationary pipes, stop piece and be positioned at the one end in abutting connection with connecting ring, the both sides end face of each contiguous block, transition block, intermediate mass, effect piece, termination piece is provided with inclined-plane, and inside is all provided with two elastic yarn through holes and a tension rope through hole along axis direction;
When strutting bar assembly in linear state, be organ dilator when expansion state not, between contiguous block and stationary pipes adjacent surface, between the adjacent inclined-plane of contiguous block and transition block, between the adjacent inclined-plane of two transition block, and the space that forms outward opening between the adjacent inclined-plane of transition block and intermediate mass, between intermediate mass and the adjacent inclined-plane of effect piece, between the adjacent inclined-plane of two effect pieces, and the space that forms outward opening between effect piece and the adjacent inclined-plane of termination piece;
Each penetrates the two ends of elastic yarn from stopping an elastic yarn through hole of piece, through strutting after the elastic yarn through hole of each parts in bar assembly, from the elastic yarn through hole of contiguous block, passes successively; Tension rope one end is fixedly connected on the tension rope junction point that stops piece end, and the other end penetrates from stopping the tension rope through hole of piece after walking around connecting ring, through strutting after the tension rope through hole of each parts in bar assembly, from the tension rope through hole of contiguous block, passes successively.
The bar assembly that struts in the present invention comprises a contiguous block, a plurality of transition block that arrange continuously, intermediate mass, a plurality of effect pieces that arrange continuously and a termination piece.
Tension rope junction point on termination piece in the present invention is positioned at the close piece outer ledge place that stops of end, and the opening of tension rope through hole is positioned at termination piece and is positioned at locating near stopping piece inside edge of end.
In above-mentioned preferred version of the present invention, elastic yarn can be stainless steel silk, spring steel wire or titanium alloy wire.
In above-mentioned preferred version of the present invention, tension rope can be steel wire rope or nylon rope.
Beneficial effect: compared with prior art, the present invention has the following advantages:
1. the present invention adopts mechanical method to carry out organ expansion, directly utilizes flexibility to strut bar organ is strutted, and has avoided utilizing in fluid media (medium) process of expansion, and medium infiltrates the problem of tissue, reliability and safe;
2. organ dilator of the present invention adopts many to strut bar organ is strutted, strut bar and organ inwall contact area is very little due to every, strut bar and only can cover the area that organ inwall is very little, thereby utilize this organ dilator, operating theater instruments can be carried out the operations such as living body sampling, excision easily to organ inwall;
3. organ dilator radial dimension before expansion is very little, makes it more easily by human body natural's tract or mini-incision;
4. organ dilator has certain flexibility before expansion, after expansion, is bird-caging, and the part contacting with organ inwall is all continuous arc, does not have corner angle, low to the injury of human organ;
5. organ dilator adopts rope to drive, and simple in structure, cost is low.
Accompanying drawing explanation
Fig. 1 is the sectional view of stationary pipes;
Fig. 2 is transition block, intermediate mass, effect piece and the sectional view that stops piece;
Fig. 3 is contiguous block outline drawing;
Fig. 4 is transition block outline drawing;
Fig. 5 is intermediate mass outline drawing;
Fig. 6 is effect piece outline drawing;
Fig. 7 is for stopping piece outline drawing;
Fig. 8 is flexible human organ dilator structure chart of the present invention, and figure support is started in softened state not;
Fig. 9 is for strutting bar assembly assumption diagram, and figure support is started in softened state not;
Figure 10 is the A-A cutaway view of Fig. 9, and figure support is started in softened state not;
Figure 11 is dilator tension rope mounting structure figure, and in figure, tension rope is in tension not;
Figure 12 is the B-B cutaway view of Figure 11, and figure is hit by a bullet sex pilus in tension not;
Figure 13 is for strutting bar assembly around the equally distributed structure chart of stationary pipes axis, and figure support is started in softened state not;
Figure 14 is the single state strutting after bar assembly struts;
Figure 15 is the state after whole dilator struts.
In figure, have: stationary pipes 1, contiguous block 2-1, transition block 2-2, intermediate mass 2-3, effect piece 2-4, termination piece 2-5, connecting ring 3, elastic yarn 4, tension rope 5.
The specific embodiment
Below in conjunction with embodiment and Figure of description, technical scheme of the present invention is described in detail.
As shown in Fig. 1 to Figure 15, designed a kind of structure of flexible human organ dilator, comprise stationary pipes 1, contiguous block 2-1, transition block 2-2, intermediate mass 2-3, effect piece 2-4, stop piece 2-5, connecting ring 3, elastic yarn 4, tension rope 5.
As shown in Figure 1, stationary pipes center is instrument channel, and elastic yarn through hole and tension rope through hole are distributing in its circumferential edge;
As shown in Figure 2, transition block, intermediate mass, effect piece are identical with the cross section that stops piece, are fan-shaped, near hole, two, fan-shaped outside, are elastic yarn through hole, near a hole of fan-shaped inner side, are tension rope through hole.
As shown in Fig. 3 to Fig. 7, in figure, be respectively the profile of contiguous block, transition block, intermediate mass, effect piece, termination piece.
As shown in Fig. 8 to Figure 12, dilator is in softened state not.As shown in Figure 9 and Figure 10, contiguous block 2-1 is positioned in abutting connection with one end of stationary pipes 1, stops piece 2-5 and is positioned in abutting connection with one end of connecting ring 3, and contiguous block 2-1, a plurality of transition block 2-2, intermediate mass 2-3, a plurality of effect piece 2-4, termination piece 2-5 join end to end successively.There is respectively aperture each contiguous block 2-1, transition block 2-2, intermediate mass 2-3, effect piece 2-4, termination piece 2-5 inside, and both sides end face is all provided with inclined-plane.When strutting bar assembly in linear state, be organ dilator when expansion state not, between contiguous block 2-1 and stationary pipes 1 adjacent surface, between contiguous block 2-1 and the adjacent inclined-plane of transition block 2-2, between the adjacent inclined-plane of two transition block 2-2, and the space that forms outward opening between transition block 2-2 and the adjacent inclined-plane of intermediate mass 2-3, between the adjacent inclined-plane of intermediate mass 2-3 and effect piece 2-4, between the adjacent inclined-plane of two effect piece 2-4, and the space that forms outward opening between effect piece 2-4 and the adjacent inclined-plane of termination piece 2-5.
As shown in figure 11, tension rope 5 one end are fixed on the tension rope junction point that stops piece 2-5 end, the other end penetrates from stopping the tension rope through hole of piece 2-5 after walking around connecting ring 3, successively through strutting after the tension rope through hole of each parts in bar assembly, from the tension rope through hole of contiguous block 2-1, pass, finally, through the tension rope through hole in instrument channel circumferential edge in stationary pipes 1, be connected on outside wire grip.
As shown in figure 12, the elastic yarn through hole that struts each parts in bar assembly is passed at the two ends that are folded in half into the elastic yarn 4 of U-shaped successively, from the elastic yarn through hole of contiguous block 2-1, pass, finally, through the elastic yarn through hole in instrument channel circumferential edge in stationary pipes 1, be connected on outside wire grip.
As shown in figure 13, a plurality of bar assemblies that strut are symmetrical arranged with the axis centre of stationary pipes 1, and it is identical that each struts the structure of bar assembly.
Organ dilator, when expansion state not, struts bar assembly in linear state, and whole organ dilator is linear, as shown in Figure 8.During flexible human organ dilator work, first the dilator of expansion state is not delivered to Target organ, then stationary pipes 1 is fixing, fixedly the wire grip of elastic yarn 4 and tension rope 5 is by every elastic yarn 4 and tension rope 5 tensions, gap under tension rope 5 and elastic yarn 4 effects between all adjacent parts all fits together reliably, every struts bar assembly and all bends to certain shape, as shown in figure 14.Because a plurality of bar assemblies that strut are uniformly distributed around stationary pipes 1 axis, whole dilator will be propped up in organ inside the space of a lantern-shaped, for subsequent procedures provides the visual field and working place, as shown in figure 15.
After operation, only need unclamp wire grip, the pulling force being applied on all tension ropes 5 and elastic yarn 4 is disengaged, and because elastic yarn 4 is straight line under free state, struts bar and recover initial straight shape under elastic yarn 4 effects, as shown in Figure 8.
Claims (5)
1. a flexible human organ dilator, it is characterized in that, this organ dilator comprises stationary pipes (1), connecting ring (3), be arranged on a plurality of bar assemblies that strut between described stationary pipes (1) and connecting ring (3), described connecting ring (3) is coaxial with stationary pipes (1), described a plurality of bar assembly that struts is symmetrical arranged with the axis centre of stationary pipes (1), also comprise and run through elastic yarn (4) and the tension rope (5) that struts bar assembly, described stationary pipes (1) center is instrument channel, described elastic yarn (4) and tension rope (5) run through strut bar assembly after respectively through elastic yarn through hole and tension rope through hole in instrument channel circumferential edge in stationary pipes (1),
The described bar assembly that struts comprises contiguous block (2-1), transition block (2-2), intermediate mass (2-3), the effect piece (2-4) connecting successively and stops piece (2-5), described contiguous block (2-1) is positioned in abutting connection with one end of stationary pipes (1), stopping piece (2-5) is positioned in abutting connection with one end of connecting ring (3), the both sides end face of each contiguous block (2-1), transition block (2-2), intermediate mass (2-3), effect piece (2-4), termination piece (2-5) is provided with inclined-plane, and inside is all provided with two elastic yarn through holes and a tension rope through hole along axis direction;
When strutting bar assembly in linear state, be organ dilator when expansion state not, between described contiguous block (2-1) and stationary pipes (1) adjacent surface, between the adjacent inclined-plane of contiguous block (2-1) and transition block (2-2), between the adjacent inclined-plane of two transition block (2-2), and the space that forms outward opening between transition block (2-2) and the adjacent inclined-plane of intermediate mass (2-3), between the adjacent inclined-plane of described intermediate mass (2-3) and effect piece (2-4), between the adjacent inclined-plane of two effect pieces (2-4), and the space that forms outward opening between effect piece (2-4) and the adjacent inclined-plane of termination piece (2-5),
Each penetrates the two ends of described elastic yarn from stopping an elastic yarn through hole of piece (2-5), through strutting after the elastic yarn through hole of each parts in bar assembly, from the elastic yarn through hole of contiguous block (2-1), passes successively; Tension rope (5) one end is fixedly connected on the tension rope junction point that stops piece (2-5) end, the other end penetrates from stopping the tension rope through hole of piece (2-5) after walking around connecting ring (3), through strutting after the tension rope through hole of each parts in bar assembly, from the tension rope through hole of contiguous block (2-1), pass successively.
2. according to flexible human organ dilator claimed in claim 1, it is characterized in that, described in each, strut bar assembly and comprise a contiguous block (2-1), a plurality of transition block (2-2) that arrange continuously, an intermediate mass (2-3), a plurality of effect pieces (2-4) that arrange continuously and a termination piece (2-5).
3. according to flexible human organ dilator claimed in claim 1, it is characterized in that, tension rope junction point on described termination piece (2-5) is positioned at close piece (2-5) the outer ledge place that stops of end, and the opening of tension rope through hole is positioned at termination piece (2-5) and is positioned at locating near stopping piece (2-5) inside edge of end.
4. according to the flexible human organ dilator described in claim 1,2 or 3, it is characterized in that, elastic yarn (4) is stainless steel silk, spring steel wire or titanium alloy wire.
5. according to the flexible human organ dilator described in claim 1,2 or 3, it is characterized in that, tension rope (5) is steel wire rope or nylon rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410393435.7A CN104127211B (en) | 2014-08-11 | 2014-08-11 | Flexible human organ dilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410393435.7A CN104127211B (en) | 2014-08-11 | 2014-08-11 | Flexible human organ dilator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104127211A true CN104127211A (en) | 2014-11-05 |
| CN104127211B CN104127211B (en) | 2016-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410393435.7A Active CN104127211B (en) | 2014-08-11 | 2014-08-11 | Flexible human organ dilator |
Country Status (1)
| Country | Link |
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| CN (1) | CN104127211B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110313980A (en) * | 2019-07-31 | 2019-10-11 | 宋勇 | A kind of reducing delivery cannula and medical instrument suit |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5275610A (en) * | 1991-05-13 | 1994-01-04 | Cook Incorporated | Surgical retractors and method of use |
| US5547458A (en) * | 1994-07-11 | 1996-08-20 | Ethicon, Inc. | T-shaped abdominal wall lift with telescoping member |
| US5558665A (en) * | 1994-06-24 | 1996-09-24 | Archimedes Surgical, Inc. | Surgical instrument and method for intraluminal retraction of an anatomic structure |
| US20030225432A1 (en) * | 2002-05-31 | 2003-12-04 | Baptiste Reginald C. | Soft tissue retraction device for an endoscopic instrument |
| CN201959400U (en) * | 2011-02-25 | 2011-09-07 | 任琛琛 | Cervical dilator |
| US20120095498A1 (en) * | 2010-10-13 | 2012-04-19 | Ethicon Endo-Surgery, Inc. | Methods and devices for mechanical space creation at a surgical site |
| CN202777423U (en) * | 2012-07-23 | 2013-03-13 | 张学民 | Dilator and conveying mechanism thereof |
| CN203354625U (en) * | 2013-07-16 | 2013-12-25 | 东南大学 | Novel uterine cavity dilator |
| CN203354690U (en) * | 2013-05-29 | 2013-12-25 | 郭伟 | Stent-graft dilator |
-
2014
- 2014-08-11 CN CN201410393435.7A patent/CN104127211B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5275610A (en) * | 1991-05-13 | 1994-01-04 | Cook Incorporated | Surgical retractors and method of use |
| US5558665A (en) * | 1994-06-24 | 1996-09-24 | Archimedes Surgical, Inc. | Surgical instrument and method for intraluminal retraction of an anatomic structure |
| US5547458A (en) * | 1994-07-11 | 1996-08-20 | Ethicon, Inc. | T-shaped abdominal wall lift with telescoping member |
| US20030225432A1 (en) * | 2002-05-31 | 2003-12-04 | Baptiste Reginald C. | Soft tissue retraction device for an endoscopic instrument |
| US20120095498A1 (en) * | 2010-10-13 | 2012-04-19 | Ethicon Endo-Surgery, Inc. | Methods and devices for mechanical space creation at a surgical site |
| CN201959400U (en) * | 2011-02-25 | 2011-09-07 | 任琛琛 | Cervical dilator |
| CN202777423U (en) * | 2012-07-23 | 2013-03-13 | 张学民 | Dilator and conveying mechanism thereof |
| CN203354690U (en) * | 2013-05-29 | 2013-12-25 | 郭伟 | Stent-graft dilator |
| CN203354625U (en) * | 2013-07-16 | 2013-12-25 | 东南大学 | Novel uterine cavity dilator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110313980A (en) * | 2019-07-31 | 2019-10-11 | 宋勇 | A kind of reducing delivery cannula and medical instrument suit |
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| Publication number | Publication date |
|---|---|
| CN104127211B (en) | 2016-02-03 |
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