CN104127211B - Flexible human organ dilator - Google Patents
Flexible human organ dilator Download PDFInfo
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- CN104127211B CN104127211B CN201410393435.7A CN201410393435A CN104127211B CN 104127211 B CN104127211 B CN 104127211B CN 201410393435 A CN201410393435 A CN 201410393435A CN 104127211 B CN104127211 B CN 104127211B
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- block
- tension rope
- stationary pipes
- elastic yarn
- bar assembly
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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 kind of flexible human organ dilator, comprise connect successively stationary pipes, strut bar assembly, connecting ring, tension rope and elastic yarn.Many strut bar assembly and are uniformly distributed around stationary pipes axis.Strut contiguous block in bar assembly, transition block, intermediate mass, effect block, stop block inside have three apertures respectively, tension rope and elastic yarn run through wherein.One end of tension rope is fixed with termination block, and connecting ring and termination block is linked together, and then runs through whole and struts bar assembly, finally pass from stationary pipes aperture.Elastic yarn is folded in half into U-shaped, and two ends are run through whole respectively and strutted bar assembly, finally pass from stationary pipes aperture.During work, stationary pipes is fixed, by tension rope and elastic yarn tension, strut bar and can bend to certain shape, how just to define a space body with strutting bar, human organ is strutted.There is a passage stationary pipes inside, enters in organ perform the operation for the instrument such as operating theater instruments or endoscope.
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 propose 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 operative doctor in varying degrees 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 IntuitiveSurgical company cooperatively, and have manufactured " Leonardo da Vinci (DaVinci) " robotic surgical system.After " Leonardo da Vinci " robotic surgical system passes through the market certification of food and drug administration in July, 2000, become the robotic surgical system that first set in the world can formally use in hospital operating room, it is mainly used in abdominal operation in early days, experienced by minimal incision *, chamber mirror, the improvement in three gradual stages of acoustic control chamber mirror be also progressively applied in clinical heart surgical operation later.The difference implementing operation on heart under opening breast, extracorporeal circulation with traditional center is, robotic surgery can realize " Wicresoft " to the full extent.Leonardo da Vinci's operation represents the technology of current minimal invasive cardiac surgery forefront.Since then, the Minimally Invasive Surgery apparatus competitively developed for each surgical field of countries in the world, more and more advanced, accurate surgery systems is just progressively applied in operating room, Minimally Invasive Surgery apparatus flourish, advances the revolution of modern surgery operation.
But in the research of numerous minimally invasive surgery systems, research center is placed on the size of how Reduction surgery apparatus by people mostly, increases the motility etc. of mechanical hand, and have ignored the research of organ expansion.What current employing was more is expand organ by gas, liquid and other medium, but has very high requirement with gas, the indices of liquid and other medium to human body, and easily occur some negative effects, produces injury to human body.
Summary of the invention
Technical problem: the invention provides a kind of mechanical means that adopts and human organ is expanded, the needs of Minimally Invasive Surgery can be met, employing compliant mechanism designs, thus the injury of dilator in process of expansion to human organ is dropped to minimum flexible human organ dilator.
Technical scheme: flexible human organ dilator of the present invention, comprise stationary pipes, connecting ring, to be arranged between described stationary pipes and connecting ring multiple struts bar assembly, connecting ring is coaxial with stationary pipes, multiple bar assembly that struts is symmetrical arranged centered by the axis of stationary pipes, also comprise the elastic yarn and tension rope that run through and strut bar assembly, stationary pipes center is instrument channel, elastic yarn and tension rope run through strut bar assembly after be each passed through elastic yarn through hole in stationary pipes in instrument channel circumferential edge and tension rope through hole;
Strut bar assembly and comprise the contiguous block, transition block, intermediate mass, effect block and the termination block that connect successively, contiguous block is positioned at one end of adjacent stationary pipes, stop one end that block is positioned at adjacent connecting ring, the both sides end face of each contiguous block, transition block, intermediate mass, effect block, termination block is provided with inclined-plane, and inside is provided with two elastic yarn through holes and a tension rope through hole all in the axial direction;
When strutting bar assembly and being in linear state, namely when organ dilator is in non-expansion state, between contiguous block and stationary pipes adjacent surface, between contiguous block and the adjacent bevel surfaces of transition block, between the adjacent bevel surfaces of two transition block, and between transition block and the adjacent bevel surfaces of intermediate mass, form the space of outward opening, between the adjacent bevel surfaces of intermediate mass and effect block, between the adjacent bevel surfaces of two effect blocks, and form the inside space of opening between effect block and the adjacent bevel surfaces stopping block;
The two ends of elastic yarn respectively penetrate from the elastic yarn through hole stopping block, successively through after the elastic yarn through hole strutting each parts in bar assembly, pass from the elastic yarn through hole of contiguous block; Tension rope one end be fixedly connected on stop block end tension rope junction point on, penetrating from stopping the tension rope through hole of block after the other end walks around connecting ring, successively through after the tension rope through hole strutting each parts in bar assembly, passing from the tension rope through hole of contiguous block.
The bar assembly that struts in the present invention comprises a contiguous block, the multiple transition block arranged continuously, intermediate mass, the multiple effect block arranged continuously and a termination block.
Tension rope junction point on termination block in the present invention is positioned at the close of end and stops block outer ledge place, and the opening stopping the tension rope through hole of block is positioned at the close of end and stops block inside edge place.
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 the method for machinery to carry out organ expansion, and directly utilize flexibility to strut bar and strutted by organ, avoid and utilize in fluid media (medium) process of expansion, medium infiltrates the problem of tissue, reliability and safety high;
2. organ dilator of the present invention adopts many to strut bar to be strutted by organ, bar is strutted and organ contact internal walls area is very little due to every root, strut bar and only can cover the very little area of organ inwall, thus utilize this organ dilator, operating theater instruments can carry out the operation such as living body sampling, excision to organ inwall easily;
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, is bird-caging, is all continuous print arc, there are not corner angle with the part of organ contact internal walls after expansion, low to the injury of human organ;
5. organ dilator adopts rope to drive, and structure is simple, and cost is low.
Accompanying drawing explanation
Fig. 1 is the sectional view of stationary pipes;
Fig. 2 is the sectional view of transition block, intermediate mass, effect block and termination block;
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 block outline drawing;
Fig. 7 is for stopping block outline drawing;
Fig. 8 is flexible human organ dilator structure chart of the present invention, and the opening lever of figure support is in non-softened state;
Fig. 9 is for strutting bar assembly assumption diagram, and the opening lever of figure support is in non-softened state;
Figure 10 is the A-A sectional view of Fig. 9, and the opening lever of figure support is in non-softened state;
Figure 11 is dilator tension rope mounting structure figure, and in figure, tension rope is in non-tension;
Figure 12 is the B-B sectional view of Figure 11, and figure sex pilus of being hit by a bullet is in non-tension;
Figure 13 is for strutting bar assembly around the equally distributed structure chart of stationary pipes axis, and the opening lever of figure support is in non-softened state;
Figure 14 be single strut bar assembly strut after state;
Figure 15 is the state after whole dilator struts.
Have in figure: stationary pipes 1, contiguous block 2-1, transition block 2-2, intermediate mass 2-3, effect block 2-4, termination block 2-5, connecting ring 3, elastic yarn 4, tension rope 5.
Detailed description of the invention
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, devise 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 block 2-4, stop block 2-5, connecting ring 3, elastic yarn 4, tension rope 5.
As shown in Figure 1, stationary pipes center is instrument channel, its circumferential edge is dispersed with elastic yarn through hole and tension rope through hole;
As shown in Figure 2, transition block, intermediate mass, effect block are identical with stopping the cross section of block, and in fan-shaped, being elastic yarn through hole near hole, two, fan-shaped outside, is tension rope through hole near a hole of fan-shaped inner side.
As shown in Fig. 3 to Fig. 7, in figure, be respectively the profile of contiguous block, transition block, intermediate mass, effect block, termination block.
As shown in Fig. 8 to Figure 12, dilator is in non-softened state.As shown in Figure 9 and Figure 10, contiguous block 2-1 is positioned at one end of adjacent stationary pipes 1, stops one end that block 2-5 is positioned at adjacent connecting ring 3, and contiguous block 2-1, multiple transition block 2-2, intermediate mass 2-3, multiple effect block 2-4, termination block 2-5 join end to end successively.There is aperture each contiguous block 2-1, transition block 2-2, intermediate mass 2-3, effect block 2-4, termination block 2-5 inside respectively, and both sides end face is all provided with inclined-plane.When strutting bar assembly and being in linear state, namely when organ dilator is in non-expansion state, between contiguous block 2-1 and stationary pipes 1 adjacent surface, between contiguous block 2-1 and the adjacent bevel surfaces of transition block 2-2, between the adjacent bevel surfaces of two transition block 2-2, and between the adjacent bevel surfaces of transition block 2-2 and intermediate mass 2-3, form the space of outward opening, between the adjacent bevel surfaces of intermediate mass 2-3 and effect block 2-4, between the adjacent bevel surfaces of two effect block 2-4, and form the inside space of opening between effect block 2-4 and the adjacent bevel surfaces stopping block 2-5.
As shown in figure 11, tension rope 5 one end is fixed on the tension rope junction point of termination block 2-5 end, penetrate from the tension rope through hole stopping block 2-5 after the other end walks around connecting ring 3, successively through after the tension rope through hole strutting each parts in bar assembly, pass from the tension rope through hole of contiguous block 2-1, eventually pass through the tension rope through hole in stationary pipes 1 in instrument channel circumferential edge, be connected on outside wire grip.
As shown in figure 12, be folded in half into the two ends of the elastic yarn 4 of U-shaped successively through the elastic yarn through hole strutting each parts in bar assembly, pass from the elastic yarn through hole of contiguous block 2-1, eventually pass through the elastic yarn through hole in stationary pipes 1 in instrument channel circumferential edge, be connected on outside wire grip.
As shown in figure 13, multiple bar assembly that struts is symmetrical arranged with the axis centre of stationary pipes 1, and each structure strutting bar assembly is identical.
When organ dilator is in non-expansion state, struts bar assembly and be in linear state, whole organ dilator is linear, as shown in Figure 8.During flexible human organ dilator work, first the dilator of non-expansion state is delivered to Target organ, then stationary pipes 1 is fixed, every root elastic yarn 4 and tension rope 5 are strained by the wire grip of fixing elastic yarn 4 and tension rope 5, gap under tension rope 5 and elastic yarn 4 act between all adjacent parts all reliably fits together, every root struts bar assembly and all bends to certain shape, as shown in figure 14.Because multiple bar assembly that struts is uniformly distributed around stationary pipes 1 axis, whole dilator will prop up the space of a lantern-shaped in organ inside, 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 be applied on all tension ropes 5 and elastic yarn 4 is removed, and because elastic yarn 4 is straight line in a free state, then struts bar and recover initial straight shape under elastic yarn 4 acts on, 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), to be arranged between described stationary pipes (1) and connecting ring (3) multiple struts bar assembly, described connecting ring (3) is coaxial with stationary pipes (1), described multiple bar assemblies that strut are symmetrical arranged with the axis centre of stationary pipes (1), also comprise the elastic yarn (4) and tension rope (5) that run through and strut bar assembly, described stationary pipes (1) center is instrument channel, described elastic yarn (4) and tension rope (5) run through strut bar assembly after be each passed through elastic yarn through hole in stationary pipes (1) in instrument channel circumferential edge and tension rope through hole,
Described strut bar assembly comprise connect successively contiguous block (2-1), transition block (2-2), intermediate mass (2-3), effect block (2-4) and termination block (2-5), described contiguous block (2-1) is positioned at one end of adjacent stationary pipes (1), stop one end that block (2-5) is positioned at adjacent connecting ring (3), the both sides end face of each contiguous block (2-1), transition block (2-2), intermediate mass (2-3), effect block (2-4), termination block (2-5) is provided with inclined-plane, and inside is provided with two elastic yarn through holes and a tension rope through hole all in the axial direction;
When strutting bar assembly and being in linear state, namely when organ dilator is in non-expansion state, between described contiguous block (2-1) and stationary pipes (1) adjacent surface, between the adjacent bevel surfaces of contiguous block (2-1) and transition block (2-2), between the adjacent bevel surfaces of two transition block (2-2), and between the adjacent bevel surfaces of transition block (2-2) and intermediate mass (2-3), form the space of outward opening, between the adjacent bevel surfaces of described intermediate mass (2-3) and effect block (2-4), between the adjacent bevel surfaces of two effects block (2-4), and form the inside space of opening between effect block (2-4) and the adjacent bevel surfaces stopping block (2-5),
The two ends of described elastic yarn respectively penetrate from the elastic yarn through hole stopping block (2-5), successively through after the elastic yarn through hole strutting each parts in bar assembly, pass from the elastic yarn through hole of contiguous block (2-1); Tension rope (5) one end is fixedly connected on the tension rope junction point of termination block (2-5) end, penetrate from the tension rope through hole stopping block (2-5) after the other end walks around connecting ring (3), successively through after the tension rope through hole strutting each parts in bar assembly, pass from the tension rope through hole of contiguous block (2-1).
2. according to flexible human organ dilator according to claim 1, it is characterized in that, strut bar assembly described in each and comprise a contiguous block (2-1), the multiple transition block (2-2) arranged continuously, intermediate mass (2-3), the multiple effect block (2-4) arranged continuously and termination block (2-5).
3. according to flexible human organ dilator according to claim 1, it is characterized in that, tension rope junction point on described termination block (2-5) is positioned at the close of end and stops block (2-5) outer ledge place, and the opening stopping the tension rope through hole of block (2-5) is positioned at the close of end and stops block (2-5) inside edge place.
4. according to the flexible human organ dilator described in claim 1,2 or 3, it is characterized in that, elastic yarn (4) be 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 |
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| Publication Number | Publication Date |
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| CN104127211A CN104127211A (en) | 2014-11-05 |
| CN104127211B true CN104127211B (en) | 2016-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410393435.7A Active CN104127211B (en) | 2014-08-11 | 2014-08-11 | Flexible human organ dilator |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110313980B (en) * | 2019-07-31 | 2023-04-18 | 宋勇 | Variable-diameter conveying sleeve and medical instrument set |
Citations (7)
| 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 |
| 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 |
| 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 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2014
- 2014-08-11 CN CN201410393435.7A patent/CN104127211B/en active Active
Patent Citations (7)
| 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 |
| 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 |
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| CN104127211A (en) | 2014-11-05 |
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