CN110115617A - For the sheath of endoscope, sheath end, protective case component and endoscopic apparatus - Google Patents
For the sheath of endoscope, sheath end, protective case component and endoscopic apparatus Download PDFInfo
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- CN110115617A CN110115617A CN201810117247.XA CN201810117247A CN110115617A CN 110115617 A CN110115617 A CN 110115617A CN 201810117247 A CN201810117247 A CN 201810117247A CN 110115617 A CN110115617 A CN 110115617A
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- wall
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- cavity
- bar portion
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- 230000001681 protective effect Effects 0.000 title claims abstract description 22
- 239000007788 liquid Substances 0.000 claims abstract description 65
- 125000006850 spacer group Chemical group 0.000 claims abstract description 60
- 238000000034 method Methods 0.000 claims abstract description 23
- 239000000463 material Substances 0.000 claims description 11
- 239000013013 elastic material Substances 0.000 claims description 9
- 229920001971 elastomer Polymers 0.000 claims description 6
- 208000002925 dental caries Diseases 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000000926 separation method Methods 0.000 abstract description 4
- 238000012545 processing Methods 0.000 abstract description 3
- 238000004140 cleaning Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 7
- 230000000007 visual effect Effects 0.000 description 6
- 239000004800 polyvinyl chloride Substances 0.000 description 5
- 229920000915 polyvinyl chloride Polymers 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000012634 fragment Substances 0.000 description 4
- 238000005457 optimization Methods 0.000 description 4
- 229920002725 thermoplastic elastomer Polymers 0.000 description 4
- 239000011521 glass Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 244000144985 peep Species 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 238000012800 visualization Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002324 minimally invasive surgery Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920003225 polyurethane elastomer Polymers 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229920002397 thermoplastic olefin Polymers 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3415—Trocars; Puncturing needles for introducing tubes or catheters, e.g. gastrostomy tubes, drain catheters
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3417—Details of tips or shafts, e.g. grooves, expandable, bendable; Multiple coaxial sliding cannulas, e.g. for dilating
- A61B17/3421—Cannulas
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
- A61B2017/00292—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2217/00—General characteristics of surgical instruments
- A61B2217/002—Auxiliary appliance
- A61B2217/007—Auxiliary appliance with irrigation system
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pathology (AREA)
- Gastroenterology & Hepatology (AREA)
- Endoscopes (AREA)
Abstract
The invention discloses a kind of sheath for endoscope, which includes the bar portion with the first cavity, and the inside of the first cavity of bar portion has inwardly projecting spacer portion, and spacer portion extends along bar portion；Spacer portion is provided with multiple, hole is provided in one or more spacer portions, hole extends to form the first liquid flow passageway along bar portion.The present invention also provides a kind of sheath end, the protective case component including above-mentioned sheath and sheath end and a kind of endoscopic apparatus and a kind of methods for the clarity for maintaining endoscope lens.Protective case component of the invention reduces processing technology difficulty, can more effectively realize that gas-liquid separation is transported, and air-flow and liquid stream can be allowed more effectively to rinse endoscope lens.
Description
Technical field
The present invention relates to medical instruments fields more particularly to a kind of for the sheath of endoscope, sheath end and protective case
Component, the invention further relates to a kind of endoscopic apparatus.
Background technique
In general, endoscope of the micro-wound surgical operation using such as laparoscope.Since endoscope is in inside of human body, environment one
As it is warmer and moist.Also, using such as device of harmonic wave scalpel or the instrument of other cuttings and solidification, cigarette can be generated
Mist and fragment.These smog and fragment and in-vivo tissue fragment or other body materials may contact camera lens, or even adhere to
Camera lens.These situations can significantly reduce the degree of getting a clear view of endoscope, or even completely lose visuality.Generally, in order to restore
Clarity removes fragment, it is necessary to remove endoscope out of body cavity, and be wiped by using cloth and keep cleaning.And so it is forced
Surgical field of view is interrupted, hidden trouble is brought for surgical safety, and delay operation operational use time.
In order to solve this problem, application No. is 200980156794.8, it is entitled " using optimization during telescope for operation and
The Chinese patent application of the maintenance visual system and method for field of operation " discloses a kind of using the visual field with deflection device assembly
The system and method for optimization component, which has important physics, pneumatic and optical characteristics, so that Minimally Invasive Surgery
Demisting, operative debris deflection, lens of laparoscope cleaning are possibly realized, while also maintaining the visual of operative site in the art of period
Change.The field-of-view optimization component can have quick-replaceable property, make for maintaining clear visual operation method to become
May, including the laparoscope with different operation characteristic all on sterile operating area can be made (for example, having different terminal angulars
Degree, length or diameter) quick-replaceable, without interfering the pre-existing operation arrangement on sterile operating area.Field-of-view optimization group
Part and existing a set of mis instruments are integrated.It will not interfere operation to arrange, it is only necessary in the stream of Surgical Operating Room (OR) team
Make the smallest variation in journey or habit.
Although application No. is 200980156794.8, entitled " using optimizing during telescope for operation and maintain field of operation can
The Chinese patent application of system and method depending on changing ", which efficiently solves camera lens visualization in operation, reduces bring operation
Inconvenient problem, but the instrument of Chinese patent application offer and method still have following defect: (1) product sheath sleeve wall thickness
Greatly, using the puncture outfit for needing to cooperate bigger specification when the hysteroscope of same specification.(2) product structure is complicated, at high cost.(3) it produces
Product operation is inflexible, and the puncture outfit to connect with airflow pipeline is in gas circuit normally open, cannot close gas circuit.(4) existing phase
Nearly product air bag should be located on airflow pipeline, rather than on infusion pipeline.
Summary of the invention
In view of the above drawbacks of the prior art, technical problem to be solved by the invention is to provide a kind of new for interior
The sheath and its component of sight glass, both may be implemented to overcome in operation camera lens visualization to reduce, bring is unhandy to ask
Topic, but can reduce entire laparoscope product bar portion outer diameter to cooperate the puncture outfit of more small dimension, moreover it is possible to be better achieved
Gas-liquid separation.
To achieve the above object, the first aspect of the present invention provides a kind of sheath for endoscope, the sheath packet
The bar portion with the first cavity is included, the inside of the first cavity of the bar portion has inwardly projecting spacer portion, the spacer portion
Extend along the bar portion；The spacer portion is provided with multiple, is provided with hole, the hole edge in one or more spacer portions
The bar portion extends to form the first liquid flow passageway.
Further, the space between two neighboring spacer portion forms first gas flow passage.
Further, the quantity in the hole is less than or equal to the quantity of the spacer portion.
Further, one or more holes are provided in the same spacer portion.
Further, the cross-sectional area of first liquid flow passageway is not less than 0.4mm2。
Further, the shape of the cross-sectional area of first liquid flow passageway is round or oval.
Further, the spacer portion makes the inner wall of bar portion form the first inner wall section and the second inner wall section, and described first
The cross section of inner wall section is arc-shaped.
Further, the cross section of second inner section is arc-shaped.
Further, the bar portion of the sheath is made of elastic material.
Further, the elastic material is selected from one of flexible PVC, soft TPU, soft TPE and rubber.
Further, the diameter of a circle where the cross section of first inner wall section is 9.8~10.2mm, in described second
Diameter of a circle where the cross section of wall section is 10.8~11.2mm.
Further, the bar portion of the sheath is made of rigid material.
Further, the diameter of a circle where the cross section of first inner wall section is 10~10.3mm, in described second
Diameter of a circle where the cross section of wall section is 11~11.3mm.
Further, the cross section of the outer wall of the bar portion of the sheath is circle, the cross of the outer wall of the bar portion of the sheath
The diameter in section is 12.24~12.44mm.
The second aspect of the present invention provides a kind of sheath end, and any of the above-described kind of sheath is arranged in the sheath end
First end, the sheath end have the second cavity, so that the sheath end has inner and outer wall, the sheath end
The outer wall for the endoscope head being arranged in inner wall and the sheath end cooperates, and forms the first cavity, first cavity is described in
The length direction of sheath end extends to form second gas flow passage；Is arranged between the inner and outer wall of the sheath end
Two cavitys, length direction of second cavity along the sheath end extend to form second liquid flow passage, and described second
Liquid flow passageway is connected with first liquid flow passageway.
Further, the space between two neighboring spacer portion forms first gas flow passage, the second gas stream
Dynamic access is connected with the first gas flow passage.
Further, the sheath end is made of translucent material.
Further, the quantity in the hole is less than or equal to the quantity of the spacer portion.
Further, the end of the sheath end has extension, and the extension can stop the sheath from institute
State the extension of sheath end stretching.
Further, it is radially extended described in radial direction or deviation of the extension along the sheath end.
Further, first cavity and second cavity extend in the extension, i.e., the described second gas
Flow passage and the second liquid flow passage extend in the extension.
Further, the exit of the second cavity of the extension is provided with protrusion, the protrusion makes described
The size of the outlet of two cavitys becomes smaller.
Further, the extension has notch, and the notch prolongs either longitudinally or along the thickness direction of the extension
Stretch and horizontally to the sheath end inner wall Directional Extension.
Further, the notch makes the extension be semi-enclosed annular.
Further, the cross-sectional area of first liquid flow passageway is not less than 0.4mm2。
Further, the shape of the cross-sectional area of first liquid flow passageway is round or oval.
Further, the spacer portion makes the inner wall of bar portion form the first inner wall section and the second inner wall section, and described first
The cross section of inner wall section and the cross section of second inner section are arc-shaped.
Further, the bar portion of the sheath is made of elastic material.
Further, the elastic material is selected from one of flexible PVC, soft TPU, soft TPE and rubber.
Further, the diameter of a circle where the cross section of first inner wall section is 9.8~10.2mm, in described second
Diameter of a circle where the cross section of wall section is 10.8~11.2mm.
Further, the bar portion of the sheath is made of rigid material.
Further, the diameter of a circle where the cross section of first inner wall section is 10~10.3mm, in described second
Diameter of a circle where the cross section of wall section is 11~11.3mm.
Further, the cross section of the outer wall of the bar portion of the sheath is circle, the cross of the outer wall of the bar portion of the sheath
The diameter in section is 12.24~12.44mm.
Further, the bar portion of the sheath also has second end, and the second end is connect with gas apparatus, the gas
The gas of equipment discharge enters the gas flow path by the second end.
The third aspect of the present invention provides a kind of protective case component for endoscope, including any of the above-described kind of sheath
With any of the above-described kind of sheath end, the first end of the sheath is arranged in the sheath end.
The fourth aspect of the present invention provides a kind of endoscopic apparatus, including endoscope assembly, the endoscope assembly packet
Include tubular rod segments, be provided with endoscope head in the tubular rod segments, the endoscopic apparatus further include any of the above-described kind of sheath and
Any of the above-described kind of sheath end；Wherein, the second cavity that the first cavity and the sheath end that the bar portion of sheath has have
For storing the tubular rod segments of the endoscope assembly, the tubular rod of the inner wall of the bar portion of the sheath and the endoscope assembly
The outer wall of part is by the spacer portion interval, so that forming first gas flow passage between two neighboring spacer portion.
The fifth aspect of the present invention provides a kind of method of clarity for maintaining endoscope lens, the method packet
Include following steps:
(1) endoscope assembly is provided, the endoscope assembly includes tubular rod segments, and interior peep is provided in the tubular rod segments
Camera lens；
(2) protective case component is provided, the protective case component includes the sheath of sheath with the first end that the sheath is arranged in
End is covered, the second cavity that the first cavity and the sheath end that the bar portion of sheath has have is for storing the endoscope
The outer wall of the tubular rod segments of the tubular rod segments of component, the inner wall of the bar portion of the sheath and the endoscope assembly is by the interval
Portion interval, so that forming first gas flow passage between two neighboring spacer portion；The spacer portion be provided with it is multiple, at one
Or hole is provided in multiple spacer portions, the hole extends to form the first liquid flow passageway along the bar portion；
(3) gas stream is provided, so that gas stream reaches the remote of the tubular rod segments by the first gas flow passage
End, and flow through the outer surface of the endoscope head.
Further, the inner wall of the sheath end and the cooperation of the outer wall of the endoscope head, form the first cavity, described
Length direction of first cavity along the sheath end extends to form second gas flow passage, the second gas flow passage
It is connected with the first gas flow passage；The second cavity is provided between the inner and outer wall of the sheath end, it is described
Length direction of second cavity along the sheath end extends to form second liquid flow passage, the second liquid flow passage
It is connected with first liquid flow passageway.
Further, the end of the sheath end has extension, and the extension can stop the sheath from institute
State the extension of sheath end stretching.
Further, first cavity and second cavity extend in the extension, i.e., the described second gas
Flow passage and the second liquid flow passage extend in the extension.
Further, the exit of the second cavity of the extension is provided with protrusion, the protrusion makes described
The size of the outlet of two cavitys becomes smaller.
Further, the method also includes following steps: (4) provide liquid flow, so that the liquid flow is successively passed through
First liquid flow passageway and the second liquid flow passage reach the distal end of the tubular rod segments, and flow through in described
The outer surface of sight glass head.
Compared with prior art, the invention has the following advantages that
1, the present invention reduces processing technology difficulty by increasing sheath sleeve wall thickness, reducing number of cavities；It is independent by increasing
Vestibule, realize gas-liquid separation transport.Sheath of the invention have unique physical characteristic and fluid behaviour, can allow in peep
In the case that mirror is inserted into body cavity, air-flow and cleaning solution used in cleaning camera lens are provided.
2, sheath end of the invention has unique physical characteristic and optical characteristics, can not influence endoscope lens
Under the premise of the visual field, the air-flow and cleaning solution for importing sheath accurately and efficiently clean endoscope lens.
It is described further below with reference to technical effect of the attached drawing to design of the invention, specific structure and generation, with
It is fully understood from the purpose of the present invention, feature and effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the protective case component for endoscope of a preferred embodiment of the invention；
Fig. 2 is the cross-sectional view of the first structure of the bar portion of the sheath of the protective case component in Fig. 1 (according to Fig. 1
In A-A at intercept)；
Fig. 3 is the cross-sectional view of structure in the first of the bar portion of the sheath of the protective case component in Fig. 1 (according to Fig. 1
In A-A at intercept), the tubular rod segments of endoscope assembly are not shown in the figure；
Fig. 4 is the cross-sectional view of second of structure of the bar portion of the sheath of the protective case component in Fig. 1 (according to Fig. 1
In A-A at intercept)；
Fig. 5 is the cross-sectional view of the third structure of the bar portion of the sheath of the protective case component in Fig. 1 (according to Fig. 1
In A-A at intercept)；
Fig. 6 is the structural schematic diagram of the sheath end of the protective case component in Fig. 1；
Fig. 7 is the structural schematic diagram of the sheath end of the protective case component in Fig. 1, shows the pipe of endoscope assembly in figure
Shape rod piece；
Fig. 8 is the sectional schematic diagram of Fig. 7；
Fig. 9 is schematic diagram of the Fig. 8 along B-B section；
Figure 10 is schematic diagram of the Fig. 8 along C-C section.
Specific embodiment
Terminology employed herein " proximal end " should be understood as one end towards operator in the course of surgery；This
Term used by text " distal end " should be understood as the one end for being carried out object towards operation in the course of surgery.
Abbreviation " PVC " employed herein refers to polyvinyl chloride；Abbreviation " TPU " employed herein refers to thermoplasticity
Polyurethane elastomer；Abbreviation " TPE " employed herein refers to thermoplastic polyolefin based elastomers.
As shown in figs. 1 to 6, a preferred embodiment of the invention provides a kind of endoscopic apparatus, including endoscope group
Part and protective case component 10.Endoscope assembly is for being imaged and image information being delivered to image display, including tubular rod
Part 21 is provided with endoscope head in tubular rod segments 21, and endoscope lens are located at the inside of the distal end of tubular rod segments 21.Endoscope group
Part is set as technology well-known to those skilled in the art, and this will not be detailed here for structure (configuration including cold light source).
Protective case component 10 includes sheath 20 and sheath end 30, and the first end of sheath 20 is arranged in (i.e. in sheath end 30
Distally).Wherein, sheath 20 includes the bar portion 223 with the first cavity 201, and the inside of the first cavity 201 of bar portion 223 has
Inwardly projecting spacer portion 224, spacer portion 224 extend along bar portion 223；Spacer portion 224 be provided with it is multiple, between one or more
Every being provided with hole 23 in portion 224, hole 23 extends to form the first liquid flow passageway along bar portion 223.First liquid flow passageway
Cross-sectional area is not less than 0.4mm2.Space between two neighboring spacer portion 224 forms first gas flow passage 22.Hole 23
Quantity is less than or equal to the quantity of spacer portion 224.One or more holes 23 can also be provided in the same spacer portion 224.
In presently preferred embodiments of the present invention, spacer portion 224 makes the inner wall of bar portion 223 form the first inner wall section 221 and the
The cross section of two inner wall sections 222, the first inner wall section 221 and the second inner section is arc-shaped.If the bar portion 223 of sheath 20 is by elasticity
Material is made, and elastic material is selected from one of flexible PVC, soft TPU, soft TPE and rubber, the first inner wall section 221
Diameter of a circle where cross section is 9.8~10.2mm, the diameter of a circle where the cross section of the second inner wall section 222 is 10.8~
11.2mm.If the bar portion 223 of sheath 20 is made of rigid material, the diameter of a circle where the cross section of the first inner wall section 221 is
10~10.3mm, the diameter of a circle where the cross section of the second inner wall section 222 are 11~11.3mm.The bar portion 223 of sheath 20
The cross section of outer wall is circle, and the diameter of the cross section of the outer wall of the bar portion 223 of sheath 20 is 12.24~12.44mm.It gives above
Out be a kind of preferably embodiment, in other embodiments, can according to need the rod piece of selection sheath 20 material and
Size.
Fig. 2~Fig. 5 gives the schematic diagram of three kinds of structures of the bar portion 223 of sheath 20, and but not limited to this, generally comes
It says, cooperatively forms cavity by the tubular rod segments 21 of sheath 20 and endoscope assembly, and open up one or more holes in sheath 20
23, realize that transport gas belongs to the range of sheath 20 of the invention with the technical solution for transporting cleaning solution two-way access.
Fig. 2 and 3 gives the cross-sectional view of the first structure of the bar portion 223 of sheath 20.Wherein sheath 20 includes
Bar portion 223 with the first cavity 201, there are three inwardly projecting spacer portions for the inside tool of the first cavity 201 of bar portion 223
224, spacer portion 224 extends along bar portion 223.Preferably, the distance between adjacent spacers 224 are equal.An interval wherein
A hole 23 is provided in portion 224, which extends to form the first liquid flow passageway along bar portion 223.Two neighboring spacer portion
Space between 224 forms first gas flow passage 22.In this configuration, 201 energy of the first cavity of the bar portion 223 of sheath 20
The tubular rod segments 21 of endoscope assembly are enough stored, the tubular rod segments 21 and sheath 20 of the endoscope of bar diameter 10mm cooperate.Sheath 20
Bar portion 223 internal diameter be 10.2mm easily can penetrate and extract out in 21 clearance fit of tubular rod segments with endoscope.Sheath
The outer wall of the tubular rod segments 21 of the inner wall and endoscope assembly of the bar portion 223 of set 20 is spaced by spacer portion 224, so that two neighboring
First gas flow passage 22 is formed between spacer portion 224.As shown in figure 3, foring three first gas flow passages 22.
For theoretically, the diameter of a circle where the cross section of the second inner wall section 222 is bigger, and the performance for transporting gas is got over
It is good, but on the other hand sheath 20 can be caused too thin again, processing difficulties.In the present embodiment, the inner wall of the bar portion 223 of sheath 20
Diameter of a circle where the cross section of first inner wall section 221 is 10.2mm, the circle where the cross section of the second inner wall section 222 it is straight
Diameter is 11.2mm, and the outer diameter of sheath 20 is 12.5mm.
In the present embodiment, the shape in hole 23, the i.e. shape of the cross-sectional area of the first liquid flow passageway are circle, and aperture is
0.75mm.But not limited to this, in other embodiments or oval.Logical liquid can be improved in the increase of the size in hole 23
Ability.
In use process, the tubular rod segments 21 that the bar portion 223 of sheath 20 is wrapped in endoscope assembly pass through puncture outfit together
Inner hole (puncture outfit diameter of bore is 12.65mm) enters in human body.In the state for keeping penetrating, first gas flow passage 22
It can continue to transport anhydrous CO2, the first liquid flow passageway can transport cleaning solution, to realize that gas-liquid separation is transported.
Fig. 4 gives the cross-sectional view of second of structure of the bar portion 223 of sheath 20.Not with the first above-mentioned structure
With there are four inwardly projecting spacer portions 224 for the inside tool of the first cavity 201 of bar portion 223, preferably, adjacent spaces
The distance between portion 224 is equal.A hole 23 is provided in a wherein spacer portion 224, which extends shape along bar portion 223
At the first liquid flow passageway.Space between two neighboring spacer portion 224 forms first gas flow passage 22.
In order to improve logical liquid ability, the quantity in hole 23 can also be increased, as shown in figure 5, giving the bar portion 223 of sheath 20
The third structure cross-sectional view.Wherein, it is protruded inwardly from there are four the inside tools of the first cavity 201 of bar portion 223
Spacer portion 224, preferably, the distance between adjacent spacers 224 are equal.It is respectively arranged in wherein two spacer portions 224
One hole 23, the hole 23 extend to form the first liquid flow passageway along bar portion 223.Space between two neighboring spacer portion 224
Form first gas flow passage 22.
In presently preferred embodiments of the present invention, as shown in Fig. 6~10, sheath end 30 has the second cavity 301, so that sheath
End 30 has inner and outer wall, and the outer wall for the endoscope head being arranged in the inner wall of sheath end 30 and sheath end 30 cooperates,
Gap between the inner wall of sheath end 30 and the outer wall of endoscope head forms the first cavity, and the first cavity is along sheath end 30
Length direction extends to form second gas flow passage 32, and second gas flow passage 32 is connected with first gas flow passage 22
It is logical；The second cavity is provided between the inner and outer wall of sheath end 30, length direction of second cavity along sheath end 30 prolongs
It stretches to form second liquid flow passage 33, second liquid flow passage 33 is connected with the first liquid flow passageway.In other realities
It applies in example, above-mentioned first cavity also can be set between the inner and outer wall of sheath end 30, but independently of the second cavity.Make
With in the process, anhydrous CO that the first gas flow passage 22 of sheath 20 transports2Finally it is transported to the second of sheath end 30
In air-flow flow passage, the cleaning solution of 20 first liquid flow passageway of sheath transport is finally transported to the second of sheath end 30
In liquid flow passageway 33.
In the present embodiment, sheath end 30 is made of high light transmission material, ensure that illumination for endoscope intensity is not cut
It is weak.
Further, the end of sheath end 30 has extension 35, and extension 35 can stop sheath 20 from sheath end
First 30 extensions 35 stretched out.Radial direction or Off-Radial of the extension 35 along sheath end 30 extend.First cavity and the second chamber
Body extends in extension 35, i.e. second gas flow passage 32 and second liquid flow passage 33 extends in extension 35.
The exit of second cavity of extension 35 is provided with protrusion 322, which become the size of the outlet of the second cavity
It is small.In addition, extension 35 have notch 34, notch 34 either longitudinally or along extension 35 thickness direction extend and horizontally to
The Directional Extension of the inner wall of sheath end 30.Notch 34 makes extension 35 be semi-enclosed annular.The notch 34 ensure that interior
It is not blocked by the extension 35 of sheath end 30 at sight glass visual angle.
In use process, the anhydrous CO of the transport of first gas flow passage 22 of sheath 202From the first of sheath end 30
The cleaning solution of cavity blowout, the first liquid flow passageway transport of sheath 20 is sprayed from the second cavity of sheath end 30, is sprayed
Cleaning solution rinse endoscope camera lens surface after, anhydrous CO2Clast is blown away from notch 34.
Fig. 9 and Figure 10 describes the fluid behaviour of sheath end 30, and center sprays cleaning solution (see arrow 401), and periphery is blown
Anhydrous CO out2Gas (see arrow 400) just can see, hole 23 and sheath end in sheath 20 from B-B section (Fig. 9)
30 the second cavity communicates, i.e., the first liquid flow passageway is connected with second liquid flow passage 33, is directed at endoscope straight
Camera lens surface and notch 34.
From C-C section (Figure 10) it can be seen that, the of first gas flow passage 22 and sheath end 30 in sheath 20
One cavity is connected, in particular, being provided with protrusion 322 in the exit of the second cavity of the extension 35 of sheath end 30, makes
The size for obtaining the outlet of the second cavity becomes smaller, and the narrow gap of 0.2mm is formed with the camera lens surface of endoscope.The narrow gap energy
Allow the anhydrous CO to produce by boasting2Coanda effect is generated, allows air-flow along the camera lens surface flow of endoscope, to play effectively clear
Wash the effect on the camera lens surface of endoscope.
In presently preferred embodiments of the present invention, the bar portion 223 of sheath 20 also has second end (i.e. proximal end), second end and gas
The gas of equipment connection, gas apparatus discharge enters gas flow path by second end.
Presently preferred embodiments of the present invention additionally provides a kind of method of clarity for maintaining endoscope lens, this method
Include the following steps:
(1) endoscope assembly is provided, endoscope assembly includes tubular rod segments 21, the distal end setting of the distal end of tubular rod segments 21
There is endoscope head；
(2) the protective case component 10 in above-described embodiment is provided, protective case component 10 includes sheath 20 and is arranged in sheath
The sheath end 30 of 20 first end, the first cavity 201 and sheath end 30 that the bar portion 223 of sheath 20 has have second
Cavity 301 is used to store the tubular rod segments 21 of endoscope assembly, the inner wall of the bar portion 223 of sheath 20 and the tubulose of endoscope assembly
The outer wall of rod piece 21 is spaced by spacer portion 224, so that forming first gas flow passage 22 between two neighboring spacer portion 224；
Spacer portion 224 is provided with multiple, hole 23 is provided in one or more spacer portions 224, hole 23 extends to form along bar portion 223
One liquid flow passageway；
(3) gas stream is provided, so that gas stream reaches the distal end of tubular rod segments 21 by first gas flow passage 22, and
Flow through the outer surface of endoscope head.
(4) liquid flow is provided, so that liquid flow successively passes through the first liquid flow passageway and second liquid flow passage 33
The distal end of tubular rod segments 21 is reached, and flows through the outer surface of endoscope head.
The preferred embodiment of the present invention has been described in detail above.It should be appreciated that those skilled in the art without
It needs creative work according to the present invention can conceive and makes many modifications and variations.Therefore, all technologies in the art
Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Technical solution, all should be within the scope of protection determined by the claims.
Claims (42)
1. a kind of sheath for endoscope, which is characterized in that the sheath includes the bar portion with the first cavity, the bar portion
The inside of the first cavity there is inwardly projecting spacer portion, the spacer portion extends along the bar portion；The spacer portion setting
Have multiple, hole is provided in one or more spacer portions, the hole extends to form the flowing of the first liquid along the bar portion
Access.
2. sheath according to claim 1, which is characterized in that the space between two neighboring spacer portion forms first gas
Flow passage.
3. sheath according to claim 1, which is characterized in that the quantity in the hole is less than or equal to the number of the spacer portion
Amount.
4. sheath according to claim 1, which is characterized in that be provided with one or more in the same spacer portion
Hole.
5. sheath according to claim 1, which is characterized in that the cross-sectional area of first liquid flow passageway is not less than
0.4mm2。
6. sheath according to claim 1, which is characterized in that the shape of the cross-sectional area of first liquid flow passageway
It is round or oval.
7. sheath according to claim 1, which is characterized in that the spacer portion makes the inner wall of bar portion form the first inner wall
Section and the second inner wall section, the cross section of first inner wall section are arc-shaped.
8. sheath according to claim 7, which is characterized in that the cross section of second inner section is arc-shaped.
9. sheath according to claim 8, which is characterized in that the bar portion of the sheath is made of elastic material.
10. sheath according to claim 9, which is characterized in that the elastic material is selected from flexible PVC, soft TPU, soft
One of matter TPE and rubber.
11. sheath according to claim 9, which is characterized in that circle where the cross section of first inner wall section it is straight
Diameter is 9.8~10.2mm, and the diameter of a circle where the cross section of second inner wall section is 10.8~11.2mm.
12. sheath according to claim 8, which is characterized in that the bar portion of the sheath is made of rigid material.
13. sheath according to claim 12, which is characterized in that circle where the cross section of first inner wall section it is straight
Diameter is 10~10.3mm, and the diameter of a circle where the cross section of second inner wall section is 11~11.3mm.
14. sheath according to claim 1, which is characterized in that the cross section of the outer wall of the bar portion of the sheath is circle,
The diameter of the cross section of the outer wall of the bar portion of the sheath is 12.24~12.44mm.
15. a kind of sheath end, which is characterized in that sheath according to claim 1 is arranged in the sheath end
First end, the sheath end have the second cavity, so that the sheath end has inner and outer wall, the sheath end
The outer wall for the endoscope being arranged in inner wall and the sheath end cooperates, and forms the first cavity, first cavity is along the sheath
The length direction of set end extends to form second gas flow passage；Is provided between the inner and outer wall of the sheath end
Two cavitys, length direction of second cavity along the sheath end extend to form second liquid flow passage, and described second
Liquid flow passageway is connected with first liquid flow passageway.
16. sheath end according to claim 15, which is characterized in that space between two neighboring spacer portion forms the
One gas flow path, the second gas flow passage are connected with the first gas flow passage.
17. sheath end according to claim 15, which is characterized in that the sheath end is made of translucent material.
18. sheath end according to claim 15, which is characterized in that the quantity in the hole is less than or equal to the interval
The quantity in portion.
19. sheath end according to claim 15, which is characterized in that the end of the sheath end has extension,
The extension that the extension can stop the sheath to be stretched out from the sheath end.
20. sheath end according to claim 19, which is characterized in that radial direction of the extension along the sheath end
Or it is radially extended described in deviateing.
21. sheath end according to claim 19, which is characterized in that first cavity and second cavity are in institute
It states in extension and extends, i.e., the described second gas flow passage and the second liquid flow passage prolong in the extension
It stretches.
22. sheath end according to claim 21, which is characterized in that in the exit of the second cavity of the extension
It is provided with protrusion, the protrusion makes the size of the outlet of second cavity become smaller.
23. sheath end according to claim 15, which is characterized in that the extension has notch, and the notch exists
On longitudinal direction along the extension thickness direction extend and horizontally to the sheath end inner wall Directional Extension.
24. sheath end according to claim 23, which is characterized in that the notch makes the extension be semiclosed
Annular.
25. sheath end according to claim 15, which is characterized in that the cross-sectional area of first liquid flow passageway
Not less than 0.4mm2。
26. sheath end according to claim 15, which is characterized in that the cross-sectional area of first liquid flow passageway
Shape be round or oval.
27. sheath end according to claim 15, which is characterized in that the spacer portion makes the inner wall of bar portion form the
The cross section of one inner wall section and the second inner wall section, the cross section of first inner wall section and second inner section is arc-shaped.
28. sheath end according to claim 27, which is characterized in that the bar portion of the sheath is made of elastic material.
29. sheath end according to claim 28, which is characterized in that the elastic material is selected from flexible PVC, soft
One of TPU, soft TPE and rubber.
30. sheath end according to claim 28, which is characterized in that the circle where the cross section of first inner wall section
Diameter be 9.8~10.2mm, diameter of a circle where the cross section of second inner wall section is 10.8~11.2mm.
31. sheath end according to claim 27, which is characterized in that the bar portion of the sheath is made of rigid material.
32. sheath end according to claim 31, which is characterized in that the circle where the cross section of first inner wall section
Diameter be 10~10.3mm, diameter of a circle where the cross section of second inner wall section is 11~11.3mm.
33. sheath end according to claim 15, which is characterized in that the cross section of the outer wall of the bar portion of the sheath is
Circle, the diameter of the cross section of the outer wall of the bar portion of the sheath are 12.24~12.44mm.
34. sheath end according to claim 15, which is characterized in that the bar portion of the sheath also has second end, institute
It states second end to connect with gas apparatus, the gas of the gas apparatus discharge enters gas flowing by the second end and leads to
Road.
35. a kind of protective case component for endoscope, which is characterized in that including institute according to claim 1~any one of 14
The sheath stated and according to claim 1 sheath end described in any one of 5~34, the sheath end are arranged in the sheath
First end.
36. a kind of endoscopic apparatus, including endoscope assembly, the endoscope assembly includes tubular rod segments, the tubular rod segments
Inside be provided with endoscope head, which is characterized in that the endoscopic apparatus further include according to claim 1~any one of 14 described in
Sheath and sheath end described in any one of 5~34 according to claim 1；Wherein, the first sky that the bar portion of sheath has
The second cavity that chamber and the sheath end have is used to store the tubular rod segments of the endoscope assembly, the bar portion of the sheath
Inner wall and the endoscope assembly tubular rod segments outer wall by the spacer portion interval so that between two neighboring spacer portion
Form first gas flow passage.
37. a kind of method of the clarity for maintaining endoscope lens, which is characterized in that described method includes following steps:
(1) endoscope assembly is provided, the endoscope assembly includes tubular rod segments, is provided with endoscope in the tubular rod segments
Head；
(2) protective case component is provided, the protective case component includes the sheath end of sheath with the first end that the sheath is arranged in
Head, the second cavity that the first cavity and the sheath end that the bar portion of sheath has have is for storing the endoscope assembly
Tubular rod segments, the outer wall of the tubular rod segments of the inner wall of the bar portion of the sheath and the endoscope assembly is by between the spacer portion
Every so that forming first gas flow passage between two neighboring spacer portion；The spacer portion be provided with it is multiple, at one or more
Hole is provided in a spacer portion, the hole extends to form the first liquid flow passageway along the bar portion；
(3) gas stream is provided, so that gas stream reaches the distal end of the tubular rod segments by the first gas flow passage, and
Flow through the outer surface of the endoscope head.
38. according to the method for claim 37, which is characterized in that the inner wall of the sheath end and the endoscope head
Outer wall cooperation, forms the first cavity, and length direction of first cavity along the sheath end extends to form second gas stream
Dynamic access, the second gas flow passage are connected with the first gas flow passage；The inner wall of the sheath end and
The second cavity is provided between outer wall, length direction of second cavity along the sheath end extends to form second liquid stream
Dynamic access, the second liquid flow passage are connected with first liquid flow passageway.
39. according to the method for claim 38, which is characterized in that the end of the sheath end has extension, described
The extension that extension can stop the sheath to be stretched out from the sheath end.
40. according to the method for claim 39, which is characterized in that first cavity and second cavity prolong described
Extend in extending portion, i.e., the described second gas flow passage and the second liquid flow passage extend in the extension.
41. according to the method for claim 40, which is characterized in that be arranged in the exit of the second cavity of the extension
There is protrusion, the protrusion makes the size of the outlet of second cavity become smaller.
42. according to the method for claim 41, which is characterized in that the method also includes following steps: (4) provide liquid
Stream, so that the liquid flow successively reaches the pipe by first liquid flow passageway and the second liquid flow passage
The distal end of shape rod piece, and flow through the outer surface of the endoscope head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810117247.XA CN110115617A (en) | 2018-02-06 | 2018-02-06 | For the sheath of endoscope, sheath end, protective case component and endoscopic apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810117247.XA CN110115617A (en) | 2018-02-06 | 2018-02-06 | For the sheath of endoscope, sheath end, protective case component and endoscopic apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110115617A true CN110115617A (en) | 2019-08-13 |
Family
ID=67519347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810117247.XA Pending CN110115617A (en) | 2018-02-06 | 2018-02-06 | For the sheath of endoscope, sheath end, protective case component and endoscopic apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110115617A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114052853A (en) * | 2020-07-29 | 2022-02-18 | 蔡昌荣 | Sleeve device for arthroscopic surgery |
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| JPH07275185A (en) * | 1994-04-05 | 1995-10-24 | Olympus Optical Co Ltd | Sheath device for endoscope |
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