CN207202945U - A kind of artery perforator flap expander for setting up PTFE coatings - Google Patents
A kind of artery perforator flap expander for setting up PTFE coatings Download PDFInfo
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- CN207202945U CN207202945U CN201720222130.9U CN201720222130U CN207202945U CN 207202945 U CN207202945 U CN 207202945U CN 201720222130 U CN201720222130 U CN 201720222130U CN 207202945 U CN207202945 U CN 207202945U
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Abstract
The utility model discloses a kind of artery perforator flap expander for setting up PTFE coatings.It includes expansion capsule, aqueduct, Injection valve；Aqueduct one end is fixedly connected with Injection valve, and the other end is fixed on the rear end that capsule is expanded in expansion capsule bottom；Expand intracapsular provided with the duct for being available for artery perforator flap to pass through；Duct side is provided with the passage communicated with the external world；Capsule shell is expanded for 7 12 layers of medical silica-gel layer, and the housing at duct includes one or more layers PTFE coating among 7 12 layers of medical silica-gel layer and medical silica-gel layer.Artery perforator flap expander of the present utility model is additionally arranged the duct for being available for artery perforator flap to pass through on the basis of traditional square expander, expansion capsule is fully expanded to the circumvascular skin histology of perforating branches；In duct, inwall, which sets up PTFE coatings, can reduce foreign body reaction；Cast several layers of medical silica-gel again outside PTFE coatings, expander and human local tissue adhesion can be prevented, be easy to separate with vessel pedicle.
Description
Technical field
The utility model belongs to shaping cosmetic surgery field, is related to a kind of expander, and more particularly to one kind sets up PTFE paintings
The artery perforator flap expander of layer.
Background technology
Skin soft-tissue expansion abbreviation tissue expansion, refer to skin tissue expander (abbreviation expander) being implanted into
Under normal skin soft tissue, by Injection valve to expansion intracapsular injection liquid, to increase expander capacity, make it to surface
Skin soft tissue produces pressure, by effect of the expanding mechanism to part, makes division and the propagation and thin of tissue and epidermal cell
Intercellular space widens, so as to increase skin area, the reparation material that acquisition skin color, quality, structure, hair Jun Yushou areas match
Material.
Artery perforator flap system Koshima was reported first in 1989.Inventionbroadly, all flaps supported by perforating branches blood vessel are equal
Belong to the category of artery perforator flap.The advantage of artery perforator flap be its can reduce for area damage, retain muscle, and can provide it is thin and
The good tissue flap of adaptability.Predilation artery perforator flap system combines tissue expansion and artery perforator flap, by expanding artery perforator flap
The tissue needed for more repair is obtained, is now widely used for incidence, the tissue reconstruction of four limbs larger area.
PTFE (polytetrafluoroethylene (PTFE)) has multinomial good characteristic, is widely used in the fields such as medical treatment, chemical industry, machinery, electronics.
It shows that PTFE properties are stable as the clinical practice effect of varicosity implantation, and histocompatbility is good, effectively can prevent tissue from gluing
Even, local inflammation reaction is slight, and the wrapping of implant surrounding annulus tissue is less.
The expander of existing Clinical practice is mostly square, kidney shape and circle.Existing expander is difficult to when placing
Artery perforator flap is avoided, therefore fully the skin around artery perforator flap can not be expanded.Sometimes for passing through in clinical practice
The skin of expansion artery perforator flap surrounding could more efficiently repair disease damage.Therefore, the shape defect of expander can cure to clinic
Teacher designs and implements optimal skin expansion scheme and causes to hinder.
Traditional silica gel expander, its material are simple silica gel (silicon rubber) material；Silicon rubber is that a kind of performance is very excellent
Good macromolecule medical material, it has cost than relatively low, and practicality is big, it is not easy to occurs repelling reflection, not to the body of people
There is any harm, biological adaptation ability is good, the advantages that capillary adhesion not with human body, is suitable as medical treatment manually material
Material.But silica gel material has one disadvantage in that it is ventilative, hair that is too ventilative and easily causing some problems (such as seepage, foreign body reaction)
It is raw.Traditional silica gel expander, because the physiological saline easy to leak for expanding intracapsular comes out, vessel pedicle surrounding soft tissue can be triggered
Foreign body reaction (physiological saline is incomplete same with body fluid, may cause foreign body reaction)；It can also cause to expand after there is foreign body reaction
Prop and human local tissue adhesion, separate with vessel pedicle to expander in II stage operation and bring certain difficulty.
Utility model content
The purpose of this utility model is, overcome the deficiencies in the prior art, there is provided one kind will not cause foreign body reaction, will not
With the artery perforator flap expander (skin tissue expander) for setting up PTFE coatings of human local tissue adhesion.
The purpose of this utility model is achieved by the following technical solution：
A kind of artery perforator flap expander for setting up PTFE coatings, it is by expansion capsule, aqueduct, Injection valve three parts group
Into；Aqueduct one end is fixedly connected with Injection valve, and the other end is fixed on the rear end that capsule is expanded in expansion capsule bottom；Expand intracapsular
It is provided with close to the centre position at expansion capsule rear portion and is available for the duct that artery perforator flap passes through；Duct side is logical provided with what is communicated with the external world
Road；The shell for expanding capsule is several layers of medical silica-gel layer；The housing at the duct that artery perforator flap passes through is available in several layers of medical silica-gel
One or more layers PTFE coating is with the addition of among layer.
Further, the profile for expanding capsule is cuboid or square；The edge of expansion capsule, i.e. cuboid or square
Radiused processing is passed through at eight angles；It is provided with close to the rear end centre position of cuboid or square and is available for the circle that artery perforator flap passes through
Cylindricality duct；Cylindrical bore side is provided with the bar cylindrical passageway communicated with the external world.
Further, a length of 8R of the cuboid, a width of 4R, a height of 2R；The bottom surface radius of the cylindrical bore
For R, a height of 2R；A width of R, a height of 2R of the bar cylindrical passageway；R is 1.5~2cm.
Further, expanding the shell of capsule includes one layer among the medical silica-gel layer and medical silica-gel layer of 7-12 layers or number
Layer polytetrafluoroethylene (PTFE) coating (is cast 7-12 times using medical silica-gel, cured during casting using PTFE liquid coatings
With being additionally arranged one or more layers PTFE coating among layer of silica gel).
Further, one or more layers PTFE coating among medical silica-gel layer is using PTFE liquid coating dip-coatings
What mode was formed.
Further, the engagement of aqueduct and expansion capsule is internal, i.e.,：It is contained in the termination of aqueduct in expansion capsule,
It is integrally formed with expansion capsule, therefore, interface will not cause extra compressing to bottom tissue during expansion.
Further, 8~12cm of water guide pipe range, water guide bore are 1-3mm, external diameter 2-4mm.
Further, Injection valve is two way valve, trapezoidal cylinder shape, upper surface diameter 0.4-0.8cm, lower surface
Diameter 0.8-1.2cm, a height of 0.6-1.0cm.
Further, aqueduct, the main material of Injection valve are medical silica-gel；Anti- puncture is provided with inside Injection valve
Stainless steel substrates.
A kind of preparation method for the artery perforator flap expander for setting up PTFE coatings of the utility model, comprises the steps：
1st, expansion capsule is made
1) configuration design and making of capsule mould are expanded
A length of 8R, a width of 4R, a height of 2R cuboid in clip bottom surface radius for R, a height of 2R cylinder, formed one
Individual cylindrical bore；A width of R, a height of 2R bar cylindrical passageway are clipped from rectangular body side surface midline position, make cylindrical bore from
Side communicates with the external world；R takes 1.5~2cm；Thus expansion capsule mould is designed and produced into.
2) expansion capsule shell is cast with expansion capsule mould, PTFE coatings is set up at cylindrical bore
The operating process of this step is：Expansion capsule mould is cast using medical silica-gel, first pours medical silica-gel several times, then dip-coating
One or more layers PTFE coating；
The method of one layer of PTFE coating of dip-coating is as follows：By the PTFE dispersion liquids in water point that mass concentration is 45-60%
Dissipate and 10-30min is placed after being well mixed, expansion capsule is immersed in aforesaid liquid after 20-60min after cleaning up, and is taken out and is put into
Oven drying, drying temperature is 90-110 degrees Celsius, standby after drying.
2nd, installation connection aqueduct
The termination of aqueduct is linked together and then poured with expansion capsule bottom (thus can be made with medical silica-gel several times
It is contained in the termination of aqueduct in expansion capsule, is integrally formed with expansion capsule).
3rd, installation connection Injection valve
Finally the aqueduct other end is fixedly connected with Injection valve, that is, completes the making of whole artery perforator flap expander.
The application method of the artery perforator flap expander of the present utility model for setting up PTFE coatings is as follows：
Surface of a wound area and position after preoperative evaluation excision of the lesion, Doppler ultrasonic blood stream detector are detected and marked
Required artery perforator flap traveling, in this embedding expander of artery perforator flap relevant position, make artery perforator flap by cylindrical bore, entirely
Expander wraps perforating branches blood vessel, should be tried one's best in art and avoid damage to required artery perforator flap.While embedding aqueduct and Injection valve are simultaneously
Skin suture, complete the embedding of artery perforator flap expander.
Expanded by the water filling of several months, when estimation expanded skin flap area reaches 130% of surface of a wound area after scar excision, row II
Phase expanded skin flap Transfer.II phase is preoperative, reuses the clear and definite flap perforating branches traveling of Doppler ultrasonic blood stream detector.Thoroughly cut
Except the area design cutting skin flap after pathological tissues according to the surface of a wound, expander is taken out, vascular anastomosis is carried out after skin flaps.For area
Can according to circumstances go directly suture, grafts covering or local skin flap transfer covering.
Drain under postoperative conventional flap, taken out stitches after 2 weeks, patient wears elastic sleeve and assists flap moulding.Skin flaps 3 months
Afterwards, to patient's row thinning of skin flap of Bulky flap.Postoperative patient application silicone pad pasting, skin relaxation device etc. prevent local scar
Hyperplasia.
The beneficial effects of the utility model：
Artery perforator flap expander of the present utility model, is additionally arranged on the basis of traditional square expander and is available for artery perforator flap
The duct passed through, expansion capsule is set fully to be expanded to the circumvascular skin histology of perforating branches, while and can protection cylinder
Artery perforator flap in shape duct is injury-free.Be available for the duct side that artery perforator flap passes through set up with the passage that communicates of the external world,
It can also play and passage is provided and prevents compressing of the expander to local nervus vasculairs after water filling expansion, ensure that blood transports unobstructed work
With.
Artery perforator flap expander of the present utility model, it is expanded the housing of capsule and (cast using the medical silica-gel layer of 7-12 layers
Into) and medical silica-gel layer among one or more layers polytetrafluoroethylene (PTFE) (PTFE) coating be made；It is middle one or more layers poly- four
PVF (PTFE) coating has isolation and antiseep effect, can prevent that expanding intracapsular physiological saline leaks out, and reduces different
Thing reacts；PTFE has good histocompatbility, and medical silica-gel is incompatible with tissue, is cast again outside PTFE coatings
Several layers of medical silica-gel, can prevent expander and human local tissue adhesion, and offer is separated with vessel pedicle for II phase Intraoperative expansion device
Convenience.
Brief description of the drawings
Fig. 1 is a kind of dimensional structure diagram for the artery perforator flap expander for setting up PTFE coatings of the utility model；
Fig. 2 is the overlooking the structure diagram of the expansion capsule (after 100% expansion) in the utility model；
Fig. 3 is the side view of the expansion capsule (after 100% expansion) in the utility model.
In figure：1. Injection valve, 2. aqueducts, 3. expansion capsules
Embodiment
The utility model is further described below in conjunction with drawings and examples.
Embodiment 1
As shown in figure 1, a kind of artery perforator flap expander for setting up PTFE coatings of the utility model, by expansion capsule, aqueduct,
Injection valve three parts form；It is medical silica-gel to expand capsule, aqueduct, the main material of Injection valve three parts.Aqueduct
One end is connected to a fixed with Injection valve, and the other end is fixed on expansion capsule bottom, and the engagement of aqueduct and expansion capsule is internal
(i.e.：It is contained in the termination of aqueduct in expansion capsule, is integrally formed with expansion capsule), therefore, interface will not be to bottom during expansion
Tissue causes extra compressing.
As shown in Figure 1, Figure 2, Figure 3 shows, the profile for expanding capsule is an a length of 8R, a width of 4R, a height of 2R cuboid, front and rear
Distance is held, left and right end is apart from short；The edge (i.e. eight angles of cuboid) for expanding capsule passes through radiused processing；Close to cuboid
Rear end centre position be provided be available for duct of the artery perforator flap by (axially through that is, vertical direction passes through)；The duct is
One bottom surface radius is R, a height of 2R cylindrical bore；The side of cylindrical bore is provided with an a width of R, a height of 2R bar post
Shape passage；R is 1.5~2cm.I.e.：After the bar shaped cylinder for clipping an a width of R, a height of 2R from the rear end midline position of cuboid
Bar cylindrical passageway is formed, then using the terminal of bar cylindrical passageway as starting point, a bottom surface radius is clipped in cuboid as R, height
To form cylindrical bore after 2R cylinder, cylindrical bore can be made from side and extraneous phase by the connection of bar cylindrical passageway
It is logical.Bar cylindrical passageway, which plays, to be provided passage and prevents compressing of the expander to local nervus vasculairs after water filling expansion, ensures blood
Transport unobstructed effect.
Water guide 8~12cm of pipe range, water guide bore are 2mm, external diameter 3mm.
Injection valve is two way valve, and trapezoidal cylinder shape, upper surface diameter 0.6cm, lower surface diameter 1cm are a height of
0.8cm.Valve internal is provided with anti-puncture stainless steel substrates.
The shell of whole expansion capsule includes 9 layers of medical silica-gel layer, and one among the 4th layer and the 5th layer of medical silica-gel layer
Layer polytetrafluoroethylene (PTFE) coating, i.e.,：One layer of PTFE coating is additionally arranged among the 4th layer and the 5th layer of medical silica-gel layer (with expansion
Capsule mould casts 9 times formation, 9 layers of medical silica-gel layer using medical silica-gel, casts during medical silica-gel using the painting of PTFE liquid
The mode of material dip-coating is additionally arranged one layer of PTFE coating among the 4th layer and the 5th layer of medical silica-gel layer, i.e.,：Poured the 4th time it is medical
After silica gel, 1 time PTFE coating of dip-coating, then pour 5 times medical silica-gels below).
The preparation method of the above-mentioned artery perforator flap expander for setting up PTFE coatings, comprises the steps：
1. make expansion capsule
1) configuration design and making of capsule mould are expanded
As shown in Figure 2 and Figure 3, an a length of 8R, a width of 4R, a height of 2R cuboid in clip a bottom surface radius and be
R, a height of 2R cylinder, a cylindrical bore is formed；An a width of R, a height of 2R are clipped from rectangular body side surface midline position
Bar cylindrical passageway, cylindrical bore is communicated from side with the external world；R takes 1.5~2cm；Thus expansion capsule mould is designed and produced into
Tool.Expand capsule die edge (i.e. eight angles of cuboid) and use radiused processing.2) cast with expansion capsule mould outside expansion capsule
Shell, PTFE coatings are set up at cylindrical bore
The operating process of this step is：Expansion capsule mould is cast using medical silica-gel, first pours 4 times medical silica-gels, then dip-coating
One layer of PTFE coating；
The method of one layer of PTFE coating of dip-coating is as follows：Dispersion liquids of the PTFE in water that mass concentration is 50% is scattered mixed
20min is placed after closing uniformly, expansion capsule is immersed in aforesaid liquid after 30min after cleaning up, takes out and be put into oven drying, does
Dry temperature is 100 degrees Celsius, standby after drying.
2. installation connection aqueduct
Linking together and then pour 5 times medical silica-gels next with expansion capsule bottom by the termination of aqueduct (thus can make
It is contained in the termination of aqueduct in expansion capsule, is integrally formed with expansion capsule).
3. installation connection Injection valve
Finally the aqueduct other end is fixedly connected with Injection valve, that is, completes the making of whole artery perforator flap expander.
Embodiment 2
A kind of artery perforator flap expander for setting up PTFE coatings of the utility model, by expansion capsule, aqueduct, Injection valve three
Part forms；It is medical silica-gel to expand capsule, aqueduct, the main material of Injection valve three parts.
The profile for expanding capsule is a length of 4R, a width of 4R, a height of 4R square；Expand edge (i.e. the eight of square of capsule
Individual angle) pass through radiused processing；Being provided with close to the rear end centre position of square is available for artery perforator flap to pass through (axially through that is,
Vertical direction passes through) duct；The duct is that a bottom surface radius is R, a height of 4R cylindrical bore；Cylindrical bore side
Face is provided with an a width of R, a height of 4R bar cylindrical passageway；R is 1.5~2cm.
Water guide pipe range 8cm, water guide bore are 1mm, external diameter 2mm.Aqueduct one end is connected to a fixed with Injection valve,
The other end is fixed on expansion capsule bottom, the engagement of aqueduct and expansion capsule for internal (i.e.：Expansion is contained in the termination of aqueduct
In capsule, it is integrally formed with expansion capsule), therefore, interface will not cause extra compressing to bottom tissue during expansion.
Injection valve is two way valve, and trapezoidal cylinder shape, upper surface diameter 0.4cm, lower surface diameter 0.8cm are high
For 0.6cm.Valve internal is provided with anti-puncture stainless steel substrates.
The shell of whole expansion capsule includes 12 layers of medical silica-gel layer, and one among the 6th layer and the 6th layer of medical silica-gel layer
Layer polytetrafluoroethylene (PTFE) coating, i.e.,：One layer of PTFE coating is additionally arranged among the 6th layer and the 6th layer of medical silica-gel layer (with expansion
Capsule mould casts 12 times using medical silica-gel and forms 12 layers of medical silica-gel layer, casts and uses PTFE liquid during medical silica-gel
The mode of coating dip coating is additionally arranged one layer of PTFE coating among the 6th layer and the 6th layer of medical silica-gel layer, i.e.,：Pouring the 6th time doctor
After silica gel, 1 time PTFE coating of dip-coating, then pour 6 times medical silica-gels below).
The preparation method of the above-mentioned artery perforator flap expander for setting up PTFE coatings, comprises the steps：
1. make expansion capsule
1) configuration design and making of capsule mould are expanded
An a length of 4R, a width of 4R, a height of 4R square in clip a bottom surface radius for R, a height of 2R cylinder
Body, form a cylindrical bore；An a width of R, a height of 2R bar cylindrical passageway are clipped from rectangular body side surface midline position, is made
Cylindrical bore communicates from side with the external world；R takes 1.5~2cm；Thus expansion capsule mould is designed and produced into.Expand capsule mold side
Edge (i.e. eight angles of square) uses radiused processing.
2) expansion capsule shell is cast with expansion capsule mould, PTFE coatings is set up at cylindrical bore
The operating process of this step is：Expansion capsule mould is cast using medical silica-gel, first pours 6 times medical silica-gels, then dip-coating
One layer of PTFE coating；
The method of one layer of PTFE coating of dip-coating is as follows：Dispersion liquids of the PTFE in water that mass concentration is 45% is scattered mixed
30min is placed after closing uniformly, expansion capsule is immersed in aforesaid liquid after 60min after cleaning up, takes out and be put into oven drying, does
Dry temperature is 110 degrees Celsius, standby after drying.
2. installation connection aqueduct
Linking together and then pour 6 times medical silica-gels next with expansion capsule bottom by the termination of aqueduct (thus can make
It is contained in the termination of aqueduct in expansion capsule, is integrally formed with expansion capsule).
3. installation connection Injection valve
Finally the aqueduct other end is fixedly connected with Injection valve, that is, completes the making of whole artery perforator flap expander.
Embodiment 3
A kind of artery perforator flap expander for setting up PTFE coatings of the utility model, by expansion capsule, aqueduct, Injection valve three
Part forms；It is medical silica-gel to expand capsule, aqueduct, the main material of Injection valve three parts.
Expand capsule profile for an a length of 8R, a width of 4R, a height of 2R ellipsoid, front and back end distance, left and right end away from
From short；Being provided with close to ellipsoidal rear end centre position is available for artery perforator flap to pass through (axially through that is, vertical direction passes through)
Duct；The duct is that a bottom surface radius is R, a height of 2R cylindrical bore；Cylindrical bore side is a width of provided with one
R, a height of 2R bar cylindrical passageway；R is 1.5~2cm.
Water guide pipe range 12cm, water guide bore are 3mm, external diameter 4mm.Aqueduct one end is fixedly linked with Injection valve
Connect, the other end is fixed on expansion capsule bottom, the engagement of aqueduct and expansion capsule for internal (i.e.：It is contained in the termination of aqueduct
Expand in capsule, be integrally formed with expansion capsule), therefore, interface will not cause extra compressing to bottom tissue during expansion.
Injection valve is two way valve, and trapezoidal cylinder shape, upper surface diameter 0.8cm, lower surface diameter 1.2cm are high
For 1.0cm.Valve internal is provided with anti-puncture stainless steel substrates.
The shell of whole expansion capsule includes 7 layers of medical silica-gel layer, and two among the 3rd layer and the 4th layer of medical silica-gel layer
Layer polytetrafluoroethylene (PTFE) coating, i.e.,：Two layers of PTFE coatings are additionally arranged among the 3rd layer and the 4th layer of medical silica-gel layer (with expansion
Capsule mould casts 7 times formation, 7 layers of medical silica-gel layer using medical silica-gel, casts during medical silica-gel using the painting of PTFE liquid
The mode of material dip-coating is additionally arranged two layers of PTFE coatings among the 3rd layer and the 4th layer of medical silica-gel layer, i.e.,：Poured the 3rd time it is medical
After silica gel, 2 times PTFE coating of dip-coating, then pour 4 times medical silica-gels below).
The preparation method of the above-mentioned artery perforator flap expander for setting up PTFE coatings, comprises the steps：
1. make expansion capsule
1) configuration design and making of capsule mould are expanded
A length of 8R, a width of 4R, a height of 2R ellipsoid in clip bottom surface radius for R, a height of 2R cylinder, formed one
Individual cylindrical bore；A width of R, a height of 2R bar cylindrical passageway are clipped from rectangular body side surface midline position, make cylindrical bore from
Side communicates with the external world；R takes 1.5~2cm；Thus expansion capsule mould is designed and produced into.
2) expansion capsule shell is cast with expansion capsule mould, PTFE coatings is set up at cylindrical bore
The operating process of this step is：Expansion capsule mould is cast using medical silica-gel, first pours 3 times medical silica-gels, then dip-coating
Two layers of PTFE coatings；
The method of one layer of PTFE coating of dip-coating is as follows：Dispersion liquids of the PTFE in water that mass concentration is 60% is scattered mixed
10min is placed after closing uniformly, expansion capsule is immersed in aforesaid liquid after 20min after cleaning up, takes out and be put into oven drying, does
Dry temperature is 90 degrees Celsius, standby after drying.
2. installation connection aqueduct
4 times medical silica-gels that the termination of aqueduct links together and then poured below with expansion capsule bottom (thus may be used
Make to be contained in the termination of aqueduct in expansion capsule, be integrally formed with expansion capsule).
3. installation connection Injection valve
Finally the aqueduct other end is fixedly connected with Injection valve, that is, completes the making of whole artery perforator flap expander.
Artery perforator flap expander in above-described embodiment, it is expanded at the cylindrical bore for being available for artery perforator flap to pass through on capsule
Housing using 7-12 layers medical silica-gel (casting) and centre one or more layers polytetrafluoroethylene (PTFE) (PTFE) coating be made；It is middle
One or more layers polytetrafluoroethylene (PTFE) (PTFE) coating has isolation and antiseep effect, can prevent that expanding intracapsular physiological saline oozes
Spill, reduce foreign body reaction (physiological saline is incomplete same with body fluid, may cause foreign body reaction)；PTFE has good
Histocompatbility, medical silica-gel is incompatible with tissue, casts several layers of medical silica-gel again outside PTFE coatings, can prevent from expanding
Prop and human local tissue adhesion, separate with vessel pedicle for II phase Intraoperative expansion device and provide conveniently.
Expansion capsule in above-described embodiment, applied due to scribbling PTFE at the cylindrical bore for being available for artery perforator flap to pass through
Layer, and PTFE elasticity is far short of what is expected compared with medical silica-gel, therefore, is not expanded at cylindrical bore, and other places are all expanded, by
This can realize the dilating effect of expansion capsule, expansion capsule is fully expanded to the circumvascular skin histology of perforating branches, together
When and can protection cylindrical bore in artery perforator flap it is injury-free.
Claims (9)
1. a kind of artery perforator flap expander for setting up PTFE coatings, it is characterised in that it is by expansion capsule, aqueduct, Injection valve
Three parts form；Aqueduct one end is fixedly connected with Injection valve, and the other end is fixed on the rear end that capsule is expanded in expansion capsule bottom；
Expand intracapsular provided with the duct for being available for artery perforator flap to pass through；Duct side is provided with the passage communicated with the external world；Expand the shell of capsule
Including several layers of medical silica-gel layer, one or more layers PTFE coating is additionally arranged among several layers of medical silica-gel layer.
2. the as claimed in claim 1 artery perforator flap expander for setting up PTFE coatings, it is characterised in that the profile for expanding capsule is
Cuboid or square；The edge of capsule is expanded, i.e. radiused processing is passed through at the eight of cuboid or square angle；Close to cuboid
Or the rear end centre position of square is provided with and is available for the cylindrical bore that artery perforator flap passes through；Cylindrical bore side be provided with it is outer
The bar cylindrical passageway that boundary communicates.
3. the artery perforator flap expander as claimed in claim 2 for setting up PTFE coatings, it is characterised in that the length of the cuboid
For 8R, a width of 4R, a height of 2R；The bottom surface radius of the cylindrical bore is R, a height of 2R；A width of R of the bar cylindrical passageway,
A height of 2R；R is 1.5~2cm.
4. the artery perforator flap expander for setting up PTFE coatings as described in claim 1,2 or 3, it is characterised in that expand capsule
Shell includes one or more layers PTFE coating among the medical silica-gel layer and medical silica-gel layer of 7-12 layers.
5. the artery perforator flap expander for setting up PTFE coatings as described in claim 1,2 or 3, it is characterised in that aqueduct with
The engagement for expanding capsule is internal, i.e.,：It is contained in the termination of aqueduct in expansion capsule, is integrally formed with expansion capsule.
6. the artery perforator flap expander for setting up PTFE coatings as described in claim 1,2 or 3, it is characterised in that water guide pipe range 8
~12cm, water guide bore are 1-3mm, external diameter 2-4mm.
7. the artery perforator flap expander for setting up PTFE coatings as described in claim 1,2 or 3, it is characterised in that Injection valve
For two way valve, trapezoidal cylinder shape, upper surface diameter 0.4-0.8cm, lower surface diameter 0.8-1.2cm, a height of 0.6-
1.0cm。
8. the artery perforator flap expander for setting up PTFE coatings as described in claim 1,2 or 3, it is characterised in that aqueduct, note
The main material for penetrating valve is medical silica-gel.
9. the artery perforator flap expander as claimed in claim 8 for setting up PTFE coatings, it is characterised in that set inside Injection valve
There are anti-puncture stainless steel substrates.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107334545A (en) * | 2017-03-08 | 2017-11-10 | 上海威宁整形制品有限公司 | Set up artery perforator flap expander of PTFE coatings and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107334545A (en) * | 2017-03-08 | 2017-11-10 | 上海威宁整形制品有限公司 | Set up artery perforator flap expander of PTFE coatings and preparation method thereof |
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