CN109310410A - Illuminated operation retractor - Google Patents
Illuminated operation retractor Download PDFInfo
- Publication number
- CN109310410A CN109310410A CN201680085572.1A CN201680085572A CN109310410A CN 109310410 A CN109310410 A CN 109310410A CN 201680085572 A CN201680085572 A CN 201680085572A CN 109310410 A CN109310410 A CN 109310410A
- Authority
- CN
- China
- Prior art keywords
- polymer
- operation retractor
- illuminated operation
- retractor according
- blade
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/30—Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/30—Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure
- A61B2090/309—Devices for illuminating a surgical field, the devices having an interrelation with other surgical devices or with a surgical procedure using white LEDs
Abstract
Illuminated operation retractor includes blade, handle, bending part and light fixture.Blade has top and bottom.Handle is extended from the proximal end of blade with an angle.Bending part connects the handle to blade.Light fixture includes at least one light source, at least one battery and the activation device for motivating light source.
Description
It introduces
For perform the operation/medical procedure during the prior art that illuminates include overhead illumination.This illumination is illuminated from overhead
System or wear-type fibre system.Traditional overhead lighting system faces many limitations.It needs directly to expose the visual field from aerial source.
The variation of patient or surgeon's positioning may interfere with light source.Frequent adjustment makes troubles to surgeon and destroys hand
Art process.For the operation in the deeper cavity that may need stronger focus illumination, overhead illumination is usually discomfort
When.
In addition, the alignment on surgeon head often interferes remote illumination and prevents light from reaching the visual field.Wear-type optical fiber system
System is frequently used for more limited surgical exposure.But there are many limitations for these equipment.
Firstly, surgeon is connected to the lamp line constraint of earphone, the mobility of operating room is limited.
Second, these devices are related with the fatigue of head and neck when often or for a long time using.
Third, these devices need surgeon to keep stable head and neck location, constant and stable to provide
Visual field illumination.
4th, the use of remote light sources and fiber optic bundle brings huge poor efficiency to system.For 300 watts of light source,
By the illumination of every foot cable loss about 10%, this causes more much lower than desired illumination typical 10 feet of long cables.
5th, the illumination of headlamp and the eyes of doctor are not conllinear, and may throw in the visual field when chamber is performed the operation in irradiation
Penetrate shade.
6th, halogen bulb becomes very hot, and the skin around the operation capsule that often burns unit doctor is working
Skin.
Other prior arts for illuminating during surgical operation/medical procedure include illuminated operation retractor.This
A little retractors include whole or connection light source, and light is locally projected downwards retractor blade.It is existing illuminated
Operation retractor overcomes the problem of overhead illumination, but still there are some disadvantages.These retractors are commonly divided into two classes.
The first kind includes having those of dismountable light source.The category allows to reuse retractor, therefore retractor
It must carry out disinfection before reuse.The characteristic of most multiple light sources is incompatible with many sterilization process.For example, battery carries out
High-temperature sterilization is not common.Organic material is completely removed from light source assembly to be also difficult.
In order to overcome these difficulties, the illuminated operation retractor with dismountable light source is created.These light sources are logical
It crosses adhesive tape or other adhesives or clamping device is releasably connected to retractor.This kind of illuminated operation retractor needs make
With preceding being assembled, and is dismantled, cleaned and sterilized after use.This assembling, disassembly, cleaning and disinfection represent user
Plenty of time, cost and poor efficiency.
The illuminated operation retractor of second class includes the operation retractor with light source, and the light source is integrated in retractor
And it is non-dismountable.These illuminated operation retractors include the power supply in retractor handle, are built in or are permanently attached to
Some form of optics between the lighting device and power supply and lighting device of blade is electrically coupled.Power supply can be electricity
Pond or the device for being inserted into wall.It is also possible to generate luminous energy rather than the light source of electric energy.Lighting device is one or more hairs
Optical diode, filament bulb, fiber optic cables or optical waveguide.Coupled mode is the wiring for electrical connection, or for optical coupled
Fiber optic cables or optical waveguide.
The illuminated operation retractor of second class eliminates the problem of assembly or disassembly that first kind operation retractor is subject to.But
It is that this second class retractor is still difficult to clean and sterilize.
Moreover, operation retractor is usually by stainless steel in order to sterilize (that is, the hot wound for bearing disinfection with high pressure steam)
At.If they have the lighting system of any attachment, manual teardown, manually cleaning are needed after usage and then is wrapped again
It is filled with the gas disinfection for lighting apparatus.Then, which needs to re-assembly on operating table before use.
Moreover, it is usually expensive that light source part, which is integrated into known technology involved in handle and blade,.Nearest
Evidence shows the process for cleaning and sterilizing often existing defects in practice, causes patient that cross contamination may occur.These are lacked
It falls into and hinders being widely used for the illuminated operation retractor of the second class.
Embodiment described herein a new class of illuminated operation retractor is represented, it is known scarce to be not exposed to these
It falls into.The once risk to completely eliminate cross contamination can be used by ensuring each retractor only in these embodiments.These are implemented
The electrical or optical interconnection system of valuableness needed for example eliminates previous retractor.These embodiments also eliminate end user
To assembling, disassembly, cleaning and the demand that sterilizes again.
Embodiment described herein a kind of illuminated operation retractor is provided, due to its intrinsic low cost, the illumination
Formula operation retractor can abandon after a single use.
In one or more exemplary embodiments, illuminated operation retractor includes blade, handle, bending part and photograph
Bright component.Blade has top and bottom.Handle is extended from the proximal end of blade with an angle.Bending part connects the handle to knife
Piece.Light fixture includes at least one light source, at least one battery and the activation device for motivating light source.Light fixture can be forever
It is connected to bending part long.
In one or more embodiments, the chemical capacity of battery is sufficient to be intended for single use.
In one or more embodiments, light fixture includes Unitarily molded lamp housing.
In one or more embodiments, light fixture includes from lamp housing multiple locating plates outstanding.Illuminated operation is led
Opening device further includes multiple receiving slits and receiving cavity.Multiple receiving slits are vertically, horizontally or angled with bending part
Ground positioning, and be configured for receiving locating plate.Receiving cavity is connected to multiple receiving slits.When multiple locating plates be fully inserted into it is more
When in a receiving slit, multiple locating plates reach receiving cavity.
When compared to the prior art, exemplary embodiment described herein has at least the following advantages:
(1) the non-directional shape of locating plate allows light fixture together with the vertical mold discharged or the mold of horizontal release
It uses.This use that general light fixture is used for various retractor shapes greatly reduces illuminated operation retractor
Cost.
(2) chemical capacity of battery is only sufficiently for first use, and abandons illuminated operation after a single use and lead
Open device.The intrinsic low cost of these embodiments makes illuminated operation retractor economically attractive, and eliminates
Cleaning and the poor efficiency and expense sterilized again.
(3) material and structure make device have radioparency, allow patient's imaging device the case where being inserted into retractor
It is lower directly to observe body cavity.
(4) material and structure enable a device to resistance, and doctor is allowed to iron work using electricity in chamber when being inserted into retractor
Have and does not have to the short circuit for worrying that electricity irons tool.
One illustrative aspect includes a kind of illuminated operation retractor, comprising: blade has top and bottom；Handle,
Extend from the proximal end of blade with an angle；Bending part connects the handle to blade；And light fixture, including at least one
Light source, at least one battery and the activation device for motivating light source, and light fixture is permanently attached to retractor；Wherein
Blade, handle and bending part are formed by the polymer molding of glass fiber reinforcement.
One illustrative aspect includes a kind of illuminated operation retractor, comprising: blade has top and bottom；Handle,
Extend from the proximal end of blade with an angle；Bending part connects the handle to blade；And light fixture, including at least one
Light source, at least one battery and the activation device for motivating light source, and light fixture is permanently attached to retractor；Wherein
Blade, handle and bending part are formed by the polymer molding of low conductivity.
One illustrative aspect includes a kind of illuminated operation retractor, comprising: blade has top and bottom；Handle,
Extend from the proximal end of blade with an angle；Bending part connects the handle to blade；And light fixture, including at least one
Light source, at least one battery and the activation device for motivating light source, and light fixture is permanently attached to bending part；Its
Middle blade, handle and bending part are formed by radiolucent polymer molding.
In various embodiments: (1) polymer is the polymer of 50% glass fiber reinforcement；(2) polymer is poly- aryl
Amide compound；(3) polymer is thermoplastic crystalline polymer；(4) polymer is aromatic diamine and aromatic dicarboxylic acid acid anhydride
Thermoplastic crystalline polymer；(5) polymer is the polyacrylamide of glass fiber reinforcement；(6) polymer is at least 50% glass
Fibre enhancing；(7) polymer has at least bending modulus of 17Gpa；(8) polymer has at least bending strength of 375Mpa；
(9) polymer has at least impact strength of 100J/M；(10) light fixture is permanently attached to bending part；And/or (11)
Polymer has less than 10-6The conductivity of A.
After reading attached drawing provided herein and detailed description, those skilled in the art will be clear that other features and excellent
Point.
The simple declaration of attached drawing
Fig. 1 is the schematic diagram according to the illuminated operation retractor of one embodiment of the invention.
Fig. 2 is the rearview of the illuminated operation retractor of Fig. 1.
Fig. 3 is the side view of the illuminated operation retractor of Fig. 1.
Fig. 4 is the exploded view of the illuminated operation retractor of Fig. 1.
Fig. 5 is the schematic diagram of the light fixture of the illuminated operation retractor of Fig. 1.
Fig. 6 is the front view of the light fixture of Fig. 5.
Fig. 7 is the partial enlarged view of the illuminated operation retractor of Fig. 1, and light fixture is removed.
Fig. 8 is the partial enlarged view of the illuminated operation retractor of Fig. 1, and light fixture is removed.
Fig. 9 is the fluoroscopic image for showing the radioparency of an embodiment.
Figure 10 shows the bending strength and bending modulus of various plastics.
The detailed description of preferred embodiment
Preferable exemplary embodiment will be described herein using attached drawing.It, will in the following description for clear explanation
Many actual details are explained together.However, it is to be understood that actual detail should not be used to limit the claims range.In other words
It says, in some embodiments, certain details are not required.In addition, draw to simplify, it will in a simplified manner schematically
Some conventional structures and element in attached drawing is shown.In the accompanying drawings and the description as far as possible using identical appended drawing reference to indicate
The same or similar part.
Unless Additional definitions, all terms (including technical terms and scientific terms) as used herein have and this field skill
The identical meaning of the normally understood meaning of art personnel.It is to be further understood that unless explicitly defining herein, such as in common dictionary
Those of definition term should be interpreted as having and its meaning in the context of related fields and this specification is consistent contains
Justice, and it is not necessarily to be construed as Utopian or too formal meaning.
Fig. 1 is the schematic diagram of illuminated operation retractor 10 accoding to exemplary embodiment.Fig. 2 is the illuminated hand of Fig. 1
The rearview of art retractor 10.As shown in Figs. 1-2, illuminated operation retractor 10 includes blade 11, handle 12, bending part 16
With light fixture 50.Blade 11 has top surface 14 and bottom surface.Handle 12 is extended from the proximal end of blade 11 with an angle.Bending part
Handle 12 is connected to blade 11 by 16.Light fixture 50 is including at least one light source 64, at least one battery 62 and for motivating
The activation device of light source 64.Light fixture 50 may be connected to bending part 16.
In addition, blade 11 and handle 12 are linked together at a certain angle by bending part 16, to form retractor portion
Part 15.In practical applications, blade 11, handle 12 and bending part 16 are integrally molded as single-piece.In addition, in this embodiment,
The angle can be in the range of such as 35 to 170 degree, and particularly can be 90 degree.Retractor component 15 can be by any
Material is made, it is preferred that being made of highstrenghtpiston, such as ABS or polyarylamide, and by being such as injection moulded
Low cost manufacturing technique be made.The top surface 14 of blade 11 can be (or flat or convex) of spill.
Blade 11 can have uniform width, or can be shaped so that distal end is more wider than proximal end or narrower.Blade
11 can have the edge for keeping tissue, or the delay that can be bent as shown in the figure to prevent tissue at its end.?
In the embodiment, handle 12 is in rectangle, but in other embodiments, the shape of handle 12 can be round or ellipse, and
It can be opened in one side or the multi-lateral.Light fixture 50 is integrated into the angular region of connection blade 11 and handle 12.It is integrated into
Multiple batteries 62 and light fixture 50 are allowed to reside in lampshade 51 and eliminate in previous disclosures in the angular region
Electrical or optical decoupling calls.
Fig. 3 is the side view of the illuminated operation retractor 10 of Fig. 1.In this embodiment, as shown in figure 3, pulling-on piece 63
It removes for motivating light fixture 50.Other embodiments may include using electric switch.
Fig. 4 is the exploded view of the illuminated operation retractor 10 of Fig. 1.Light source 64 is used for illuminated operation retractor 10
The region of blade 11 provides illumination.Light source 64 can be any suitable light source, such as light emitting diode (LED), incandescent element
Or fluorescent element.
In this embodiment, light source 64 can be at an angle with shape, so that all right blade 11 of entering of essentially all of light
Distally.In other embodiments, light source 64 can be at an angle with shape, above essentially all of light to blade 11,
Or the other angles with blade 11, this is preferred for the medical applications of illuminated operation retractor 10.
Multiple batteries 62 provide electric power to light source 64.Multiple batteries 62 are sufficiently small to be contained between blade 11 and handle 12
Angular region in.The example of multiple batteries 62 includes LR41 or AG3 type button cell.The price of these batteries 62 is very low
It is honest and clean.In this embodiment, three batteries 62 are used to provide electric power to light source 64.Three batteries 62 do not need expensive circuit to adjust
Voltage and current needed for saving light source 64.These batteries 62 contain enough energy, using the time be 20-40 minutes, this for
It is enough for most medical procedures.It in other embodiments, can be in the case where being with or without adjusting circuit
Use different number and different types of battery 62.
Fig. 5 is the schematic diagram of the light fixture 50 of the illuminated operation retractor 10 of Fig. 1.Fig. 6 is the light fixture 50 of Fig. 1
Front view.Lamp housing 51 includes light source 64, multiple batteries 62, spring 51 and pulling-on piece 63.Light source 64 has electrical lead 65 and 66, electricity
Lead 65 and 66 is cut into length appropriate and is bent, so that electrical lead 65 and the anode or cathode electricity of a battery 62 connect
Touching, and electrical lead 66 and spring 61 are in electrical contact.In this embodiment, spring 61 is made of the metal of such as stainless steel.At it
In his embodiment, other conductive materials for being suitable for manufacturing spring can be used.Spring 61 carries out electricity with opposite battery polar
Contact, which is different from battery polar mentioned above, and spring 61 connects in this way with a battery 62
Touching.
Spring 61 is assembled with compressive state, so that spring 62 is applied to multiple batteries 62, pulling-on piece 63 and light source lead 65 and 66
Reinforcing.The power ensures the electrical contact between multiple batteries 62, light source lead 65 and 66, spring 61 and pulling-on piece 63.Pulling-on piece 63 is by electricity
Insulating materials is made, such as polymer, plastics or film.When pulling-on piece 63 is inserted between two batteries 62, pulling-on piece 63 prevents electricity
Stream flows to light source 64.The removal of pulling-on piece 63 will make spring 61 push together multiple batteries 62, and electric current is allowed to flow to light source 64.
Therefore, light emits from light source 64.The application of pulling-on piece 63 is the very inexpensive method that control circuit is powered.In other embodiments
In, switch in place pulling-on piece 63 can be used to complete the circuit of multiple batteries 62 and light source 64.Those of ordinary skill in the art will
Understand these other embodiments.
As seen in figs. 5-6, light fixture 50 includes lamp housing 51.Multiple locating plates 52 are prominent from lamp housing 51.Lamp housing 51 is whole
Body molding, and be made in this embodiment of the moldable material of such as plastics or nylon, but in other embodiments
Other materials can be used.In addition, light fixture 50 includes multiple locating plates 52.More specifically, multiple locating plates 52 are located at branch
The distal end of leg 53, and it is prominent at right angle with supporting leg 53.In this embodiment, when being inserted into multiple receiving slits 71 (in figures 5-6 not
Show) when, multiple locating plates 52 are initially compressed.
Fig. 7-8 is the partial enlarged view of the illuminated operation retractor 10 of Fig. 1, and light fixture 50 is removed.Such as Fig. 7-8
Shown, illuminated operation retractor 10 further includes multiple receiving slits 71 and receiving cavity 72.Multiple receiving slits 71 are vertically, horizontally
Or it is angularly positioned with bending part 16, and be configured for receiving multiple locating plates 52.Multiple receiving slits 71
(as shown in Figure 8) is connected to receiving cavity 72.When multiple locating plates 52 are fully inserted into multiple receiving slits 71, multiple locating plates 52
Reach receiving cavity 72.Receiving cavity 72 is arranged to remove the compression on multiple locating plates 52, and will prevent multiple locating plates 52 from
Receiving cavity 72 removes.In this embodiment, in the recessed retractor component 15 of receiving cavity 72, so that multiple locating plates 52 will not be from leading
The surface for opening device component 15 is prominent.There is no any protrusion to allow the smooth surface of blade 11 and handle 12, and blade 11 and hand
Angular regions between handle 12 prevent the tissue stimulation during medical procedure.
Multiple locating plates 52, multiple positioning support legs 53, multiple receiving slits 71 and receiving cavity 72 allow be used for retractor portion
There is novel flexibility in the formation of the injection molding of part 15.In this embodiment, injection groove is vertical, is such as designed to hang down
Needed for the mold directly discharged.Injection moulding field skilled artisan will realize that, the shape of retractor component 15 needs to hang down
The mold directly discharged.
The other embodiments of retractor component 15 may include the shape of needs level demoulding, therefore will have multiple levels to connect
Receive slot and multiple horizontal receiving cavities.The non-directional shapes of multiple locating plates 52 allow light fixture 50 and the vertical mold discharged or
The mold of level release is used together.General light fixture 50 is used for various retractor shapes are significant to reduce illuminated hand
The cost of art retractor 10.
The embodiments described herein provides novel inexpensive light fixture 50, is mounted on illuminated operation retractor
10 unique location, this eliminates the expensive electrically and/or optically interconnection between handle 12 and the previously blade 11 of retractor.
Light fixture 50 is connected to illuminated operation retractor 10 in a novel way, so as to can be with horizontal or vertical mould
The various retractor shapes of system are compatible.The chemical capacity of battery 62 is only sufficiently for first use, and once makes
Illuminated operation retractor is abandoned with rear.The intrinsic low cost of these embodiments makes illuminated operation retractor 10 economically
Poor efficiency and expense attractive, and eliminate cleaning and sterilize again.Recent evidence show that clean and sterilize
Program often existing defects in practice, cause patient that cross contamination may occur.By ensuring that each illuminated operation retracts
Device 10 is used only once, and embodiment as described herein completely eliminates the risk of cross contamination.
In one or more embodiments, blade, handle and bending part (being herein collectively referred to as " main body ") are Unitarily molded
's.In at least one of the exemplary embodiments, the material for forming main body is the plastics of firm, rigidity, lightweight (for example, polymerization
Object).One example of suitable plastics is the polyarylamide compound of glass fiber reinforcement, provides high-intensitive and Gao Gang
Property, lustrous surface and creep resistance.Exemplary embodiment uses the polyarylamide compound of 50% glass fiber reinforcement, still
It will be understood by those skilled in the art that it can be used in the case where not departing from the spirit and scope of claimed invention
His percentage.
Polyarylamide is the thermoplastic crystalline polymer of aromatic diamine and aromatic dicarboxylic acid acid anhydride, is had good resistance to
Hot, fire resistance and chemical resistance, property retention at high temperature, dielectric and mechanical performance and rigidity but low fast light
Property and machinability.It will be understood by those skilled in the art that also can be used with other of proper strength and rigidity plastics.
In one or more embodiments, the main body is made by plastics (such as polyarylamide of glass fiber reinforcement)
There is translucency and at least one of non-conductive characteristic at, plastics.As used herein, " radioparency " means
To the high-permeability of radiation, allow to use the device when shooting such as radioscopic image.As used herein, " non-conductive
" mean substantially dielectric.
The advantages of radioparency, is, the device can be used when shooting radioscopic image, as shown in figure 9, without
Block basic structure." OBP " described in Fig. 9 is generated by being placed on the metal letter below the blade of an embodiment,
To show radioparency.The darker image in left side be stainless steel comparison blade, due to its relative to the opacity of X-ray and
It is shown as black.
Embodiment described herein can provide light to the tip of retractor and still maintain high (up to 99%) to penetrate
What line can pass through.The device of the prior art has the fiber optic cables that sight is for example hindered when shooting radioscopic image, even if the dress
It sets and is made of plastics.Certainly, metal device is not radiolucent.
The radiolucent matter mean in surgical operation using may not be needed before imaging technique remove herein
The retractor.This can accelerate the process of the anatomy needed identification and/or equipment positioning.
A dielectric advantage is, compared with metal retractors, it provides better safety for patient.Patient can
It can feel the electric current down to 0.001A, and biggish electric current may damage patient.Embodiment described herein by electric current
It is limited to less than 10-6A, therefore greatly reduce the danger of electricity.
For example, electric cautery is widely used in surgical tissue dissection.The use of metal retractors makes surgeon and the trouble of operation
Person is exposed to the risk of the tissue damage due to carrying out retracting caused by destructiveness burns electric current unintentionally.Retractor is usually used
In dislocation and withdraws and fragile burn sensitive organization, such as small intestine or large intestine (colon), lung or Major Vessels.The burning of these tissues
Wound is likely to result in serious complication.In addition, retractor is commonly used in developing surgical tissue in breast and pacemaker operation
Bag.Using non-conducting material, such as herein in regard to any stray electrical described in some embodiments, prevented to the tissue of retraction
It can injury.To enhance the safety of patient.
As it will appreciated by a person of ordinary skill, intensity is the function of material and design.Using more weaker than described herein
The design of material needs thicker and more round.Both characteristics can all reduce the profitability of retractor, and what this should not stop body cavity can
Opinion property.
Bending strength indicate material be broken under stress before the limit.Bending modulus be material under stress it is curved become
Gesture.The two parameters are designed retractor and final performance is crucial.Firstly, retractor blade must be sufficiently thin, in order to avoid
Interference uses its medical procedure.Very thick blade needs the intracorporal hole of body of work by filling doctor is tended to.Most preferably set
Meter will make blade sufficiently thin, to reserve the space of doctor's work.Usually using metal blade, because they have high bending die
Amount.They have unlimited bending strength, because they are bent rather than fracture.The thin metal blade to 0.5-2mm is easy to
It buys, this thickness is sufficiently small, will not interfere the working space that doctor is intracavitary in wound or operation.Most of tractors are set
Meter, stainless steel metal can have the bending modulus of 180Gpa, this will inhibit blade to deform more than under 15 pounds of tip pressure
10mm。
The blade of injection molding needs thicker blade, because they have lower bending modulus.Blade strength will be with
Blade thickness cube increase, but most of doctors application in be not intended to blade thickness be greater than 2mm.Typical plastics material
Material, for example, shown in the following table 1 those, there is the only bending modulus of several Gpa and the bending strength less than 200Mpa.These are lower
The parameter of value causes retractor blade to deform more than 10mm in use, and may be in average length retractor blade (50-
150mm long) tip on apply power less than 30 pounds and rupture.
The retractor blade significantly deformed during use increases the difficulty of doctor's retracted tissue in medical procedure.With
The tractor blade of power fracture less than 30 pounds may cause damages to patient, because the fragment of fracture blade or fracture blade can
Patient's body can be fallen into and cause to damage.The retractor blade made of the plastics listed in following table is usually in 10 pounds of tip force
Lower bending will be broken more than 20mm under the tip force of 15 pounds (or even more small).
Table 1: the typical bending strength and bending modulus of polymer
| Polymer type | Bending strength (MPa) | Bending strength (MPa) |
| Polyamide-imine biatomic acid | 175 | 5 |
| Polycarbonate | 90 | 2.3 |
| Polyethylene, MDPE | 40 | 0.7 |
| Polyethylene terephthalate | 80 | 1 |
In order to increase the bending modulus and bending strength of plastics, in one embodiment, glass fibre is added to plastics
In material.Figure 10 shows various plastics, wherein being added to the glass fibre of various percentages.
From the above it can be seen that addition glass fibre the bending strength of certain plastics can be increased to 300Mpa or
300Mpa or more, and bending modulus is increased into 16Gpa or 16Gpa or more.In one exemplary embodiment, certain type of
Plastics, polyacrylamide implantation glass fiber are more than the bending strength of 375Gpa and more than the bending modulus of 17Gpa to generate.
Plastics with these characteristics can manufacture the retractor blade that thickness is about 2mm, and the retractor blade can in this way
The tip force more than 30 pounds is born without being broken under 15 pounds of power and deforming less than 10mm.In addition, the glass in this material
Glass fiber will leave very smooth " metalloid " facing in surface " vitrifying ", this is to be highly desirable in retractor application
's.
Glass fibre in material will also reduce the possibility that sharp materials fragment is generated during overstress and cleavage event
Property.If this trend for generating root face in fracture reduces retractor by excessive tensile and finally ruptures, patient will meet with
Injured possibility.
In addition, the mode of material fracture is also critically important in medical applications.It is strong that the fracture characteristics of material usually pass through impact
Degree is to measure.Material with low impact strength (10-20J/M) can fragment into a large amount of sharp fragments under stress, if
Generating material fails in medical procedure, this may cause damages to patient.Sharp fragment can cut patient tissue, and
These a large amount of fragments may make it difficult to or can not remove broken material from patient.
The material used in some embodiments as described herein (such as polyarylamide of glass fiber reinforcement) has
High impact strength (> 100J/M) and will be with considerably less fracture component edge (and resulting edge will be blunt) mistake
It loses.This fracture characteristics minimize product during the overstress for causing material to be broken to the potential hazard of patient.
In short, when compared to the prior art, one or more embodiment as described herein has at least following advantages:
(1) the non-directional shape of locating plate allows light fixture to make together with the vertical mold discharged or horizontal release mold
With.This use that general light fixture is used for various retractor shapes greatly reduce illuminated operation retractor at
This.
(2) chemical capacity of battery is only sufficiently for first use, and abandons illuminated operation after a single use and lead
Open device.The intrinsic low cost of these embodiments makes illuminated operation retractor economically attractive, and eliminates
Cleaning and the poor efficiency and expense sterilized again.In addition, because halogen bulb becomes very hot and frequent burns unit doctor
Skin around the operation capsule of work is advantageous compared to halogen using LED light source.
(3) material for constructing retractor provides significant safety and advantage better than prior art retractor,
It includes, but are not limited to, at least one of the following: (a) without insufficient danger sterilized again；(b) non-conductive；(c) ray
Transmissibility；(d) high bending strength and high bending modulus；And (e) high impact.
Although the present invention has been described in detail by reference to certain embodiments of the present invention here, other implementations
Example is also possible.Therefore, spirit and scope of the appended claims should not necessarily be limited by any of the embodiment for including herein and not want
Seek the details of protection.
It will be obvious to those skilled in the art that in the range or essence that do not depart from claimed invention
In the case where mind, the structure of the embodiments described herein can be carry out various modifications and be changed.In view of foregoing teachings, it is desirable that protect
Shield the present invention is directed to cover the numerous modifications and variations of the embodiments described herein, as long as they fall into appended claims
In range.
Claims (29)
1. a kind of illuminated operation retractor, comprising:
Blade has top and bottom；
Handle extends from the proximal end of the blade with an angle；
Bending part attaches the handle to the blade；And
Light fixture, including at least one light source, at least one battery and activation device for motivating the light source, and institute
It states light fixture and is permanently attached to the retractor；
Wherein the blade, the handle and the bending part are formed by the polymer molding of glass fiber reinforcement.
2. illuminated operation retractor according to claim 1, wherein the polymer is 50% glass fiber reinforcement
Polymer.
3. illuminated operation retractor according to claim 1, wherein the polymer is polyarylamide compound.
4. illuminated operation retractor according to claim 1, wherein the polymer is thermoplastic crystalline polymer.
5. illuminated operation retractor according to claim 4, wherein the polymer is aromatic diamine and aromatic series
The thermoplastic crystalline polymer of dicarboxylic anhydride.
6. illuminated operation retractor according to claim 1, wherein the polymer is the poly- virtue of glass fiber reinforcement
Base amide.
7. illuminated operation retractor according to claim 1, wherein the polymer is that at least 50% glass fibre increases
Strong.
8. illuminated operation retractor according to claim 1, wherein the polymer has at least bending die of 17Gpa
Amount.
9. illuminated operation retractor according to claim 1, wherein the polymer has at least bending of 375MPa
Intensity.
10. illuminated operation retractor according to claim 1, wherein the polymer has at least impact of 100J/M
Intensity.
11. illuminated operation retractor according to claim 1, wherein the light fixture be permanently attached to it is described curved
Bent portions.
12. a kind of illuminated operation retractor, comprising:
Blade has top and bottom；
Handle extends from the proximal end of the blade with an angle；
Bending part attaches the handle to the blade；And
Light fixture, including at least one light source, at least one battery and activation device for motivating the light source, and institute
It states light fixture and is permanently attached to the retractor；
Wherein the blade, the handle and the bending part are formed by the polymer molding of low conductivity.
13. illuminated operation retractor according to claim 12, wherein the glass fibre that the polymer is 50% increases
Strong polymer.
14. illuminated operation retractor according to claim 12, wherein the polymer is polyarylamide compound.
15. illuminated operation retractor according to claim 12, wherein the polymer is thermoplastic crystalline polymer.
16. illuminated operation retractor according to claim 15, wherein the polymer is aromatic diamine and fragrance
The thermoplastic crystalline polymer of race's dicarboxylic anhydride.
17. illuminated operation retractor according to claim 12, wherein the polymer is the poly- of glass fiber reinforcement
Aryl amide.
18. illuminated operation retractor according to claim 12, wherein the polymer is at least 50% glass fibre
Enhancing.
19. illuminated operation retractor according to claim 12, wherein the glass fibre that the polymer is 50% increases
Strong polyarylamide.
20. illuminated operation retractor according to claim 12, wherein the polymer has less than 10-6The conduction of A
Rate.
21. illuminated operation retractor according to claim 12, wherein the light fixture be permanently attached to it is described
Bending part.
22. a kind of illuminated operation retractor, comprising:
Blade has top and bottom；
Handle extends from the proximal end of the blade with an angle；
Bending part attaches the handle to the blade；And
Light fixture, including at least one light source, at least one battery and activation device for motivating the light source, and institute
It states light fixture and is permanently attached to the bending part；
Wherein the blade, the handle and the bending part are formed by radiolucent polymer molding.
23. illuminated operation retractor according to claim 22, wherein the glass fibre that the polymer is 50% increases
Strong polymer.
24. illuminated operation retractor according to claim 22, wherein the polymer is polyarylamide compound.
25. illuminated operation retractor according to claim 22, wherein the polymer is thermoplastic crystalline polymer.
26. illuminated operation retractor according to claim 25, wherein the polymer is aromatic diamine and fragrance
The thermoplastic crystalline polymer of race's dicarboxylic anhydride.
27. illuminated operation retractor according to claim 22, wherein the polymer is the poly- of glass fiber reinforcement
Aryl amide.
28. illuminated operation retractor according to claim 22, wherein the polymer is at least 50% glass fibre
Enhancing.
29. illuminated operation retractor according to claim 22, wherein the light fixture be permanently attached to it is described
Bending part.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US2016/036833 WO2017213662A1 (en) | 2016-06-10 | 2016-06-10 | Illuminated surgical retractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109310410A true CN109310410A (en) | 2019-02-05 |
Family
ID=60578058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680085572.1A Pending CN109310410A (en) | 2016-06-10 | 2016-06-10 | Illuminated operation retractor |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3468481A4 (en) |
| CN (1) | CN109310410A (en) |
| WO (1) | WO2017213662A1 (en) |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6241659B1 (en) * | 1999-10-06 | 2001-06-05 | Codman & Shurtleff, Inc. | Surgical retractor assembly with controlled rotation |
| US7223233B2 (en) * | 2002-08-02 | 2007-05-29 | Warsaw Orthopedic, Inc. | Systems and techniques for illuminating a surgical space |
| US20070060795A1 (en) * | 2005-09-14 | 2007-03-15 | Spotlight Surgical, Inc. | Lighted surgical retractors with LED illumination light engines |
| US20080269564A1 (en) * | 2007-04-17 | 2008-10-30 | Coopersurgical, Incorporated | Surgical retractor system and method |
| US9060757B2 (en) * | 2008-05-05 | 2015-06-23 | Ranier Limited | Distractor |
| US20120059226A1 (en) * | 2010-09-01 | 2012-03-08 | Funt David K | Surgical retractors with illumination |
| DE202010017638U1 (en) * | 2010-10-07 | 2012-03-28 | Blasius Gerg | Medical retaining hook |
| US10292784B2 (en) * | 2010-12-10 | 2019-05-21 | Illumix Surgical Canada Inc. | Illuminating surgical device |
| US20130197313A1 (en) * | 2012-01-31 | 2013-08-01 | Shaw P. Wan | Surgical retractor with light |
| GB2505463A (en) * | 2012-08-31 | 2014-03-05 | Marc Philip Daveraj Karoo | Transparent retractor with light |
| DK3302292T3 (en) * | 2015-06-03 | 2024-01-02 | Obp Surgical Corp | Retractor |
-
2016
- 2016-06-10 CN CN201680085572.1A patent/CN109310410A/en active Pending
- 2016-06-10 EP EP16904811.3A patent/EP3468481A4/en not_active Withdrawn
- 2016-06-10 WO PCT/US2016/036833 patent/WO2017213662A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017213662A1 (en) | 2017-12-14 |
| EP3468481A4 (en) | 2019-11-27 |
| EP3468481A1 (en) | 2019-04-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3302292B1 (en) | Retractor | |
| US20230045387A1 (en) | Illuminated surgical retractor | |
| US10420540B2 (en) | Illuminated surgical retractor | |
| CA2761398C (en) | Organic light emitting diode illuminated surgical retractor | |
| US20180021100A1 (en) | Surgical retractor | |
| US20210204926A1 (en) | Retractor | |
| US20170150878A1 (en) | Laryngoscope | |
| US7871375B2 (en) | LED lighting apparatus and method of using same for illumination of a body cavity | |
| EP3297516B1 (en) | An illumination device | |
| US20130331657A1 (en) | Self-powered lighting system for use with an electrosurgical pencil | |
| US20160310121A1 (en) | Illuminated Surgical Retractor | |
| US11622756B2 (en) | End cap assembly for retractor and other medical devices | |
| CN109310410A (en) | Illuminated operation retractor | |
| US20160278752A1 (en) | Illuminated Surgical Retractor | |
| US20170367567A1 (en) | Laryngoscope | |
| US20180353258A1 (en) | Illuminated retractor | |
| ITBA20010015A1 (en) | LIGHT PROBE FOR PERCUTANEOUS TRACHEOSTOMY |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190205 |