CN108175365A - A kind of sheath and hysteroscope equipment and surgery systems for hysteroscope - Google Patents
A kind of sheath and hysteroscope equipment and surgery systems for hysteroscope Download PDFInfo
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- CN108175365A CN108175365A CN201611124369.9A CN201611124369A CN108175365A CN 108175365 A CN108175365 A CN 108175365A CN 201611124369 A CN201611124369 A CN 201611124369A CN 108175365 A CN108175365 A CN 108175365A
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- 125000006850 spacer group Chemical group 0.000 claims abstract description 30
- 239000012530 fluid Substances 0.000 claims description 47
- 238000000034 method Methods 0.000 claims description 20
- 239000013013 elastic material Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 210000000683 abdominal cavity Anatomy 0.000 claims description 3
- 238000012800 visualization Methods 0.000 abstract description 7
- 230000009467 reduction Effects 0.000 abstract description 6
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- 239000007789 gas Substances 0.000 description 20
- 230000000007 visual effect Effects 0.000 description 11
- 238000005457 optimization Methods 0.000 description 10
- 238000012360 testing method Methods 0.000 description 10
- 238000001802 infusion Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 238000002357 laparoscopic surgery Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00131—Accessories for endoscopes
- A61B1/00135—Oversleeves mounted on the endoscope prior to insertion
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/00131—Accessories for endoscopes
- A61B1/0014—Fastening element for attaching accessories to the outside of an endoscope, e.g. clips, clamps or bands
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/012—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor characterised by internal passages or accessories therefor
-
- 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
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Veterinary Medicine (AREA)
- Pathology (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
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- Heart & Thoracic Surgery (AREA)
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- Optics & Photonics (AREA)
- Endoscopes (AREA)
Abstract
The present invention provides a kind of sheath for hysteroscope, the sheath includes the bar portion with cavity, and the inner wall of the cavity of the bar portion has inwardly projecting spacer portion, and the spacer portion extends along the bar portion.Sheath provided by the present invention for hysteroscope, which can not only have been realized, overcomes the problems, such as that the reduction of camera lens visualization is brought inconvenient in operation, but can reduce entire laparoscope product bar portion outer diameter to coordinate the puncture outfit of more small dimension.
Description
Technical field
The present invention relates to medical instruments field more particularly to a kind of sheaths for hysteroscope.The invention further relates to a kind of chambers
Mirror device and surgery systems.
Background technology
Laparoscope is a kind of medical instrument with miniature webcam.Laparoscope and display, image processor and cold
Light source is used cooperatively to complete operation.Wherein, laparoscope is usually by part is rigid or the rodlike or rod-shaped tube body of relative stiffness
Composition, one end are equipped with miniature webcam, implement patient's body organ figure for entering patient's body with the working end of laparoscope
As shooting.During laparoscopic surgery is carried out, laparoscope enters patient's by two or more relatively small notch
Abdominal cavity or pelvic cavity rather than by one typically in general surgical procedures individually big notch enter patient abdominal cavity or
Pelvic cavity.Doctor is inserted into the patient by the working end of laparoscope, the light of cold light source by optical fibers import patient's body so as to
Miniature webcam to be in patient's body provides camera shooting illumination.The organic image of the patient's body of miniature webcam acquisition is turned
After being changed to electric signal, image processor is reached by photoelectric traverse and is handled, final real-time display is over the display.Doctor passes through
The image of shown patient organ's different angle on display, analyzes and determines conditions of patients, and uses dedicated laparoscope
Instrument implements operation.In laparoscopic surgery, usually make abdominal distention by using insufflator and using gas, by by stomach wall
It is increased to expand the space of abdomen on internal, so as to create enough work and observation space for surgeon.Two
Carbonoxide is commonly used in insufflation, however can also use other suitable gases.Conventional insufflator, which is suitable for opening and closing, to follow
Ring is to maintain preset and suitable pressure in patient's body lumen.
Local environment in patient abdomen space is general warmer and moist, using such as device of harmonic wave scalpel and
The device of other cuttings and solidification can cause mist, cigarette and other fragments being discharged into field of operation, and fragment is usually entire
It left floating in widened abdominal space.In addition, blood, body fluid, fragment of tissue, fat or other body materials may touch
Camera lens even adheres to camera lens.These situations can cause to significantly reduce by the visualization of sight glass.Usually, to the mist on camera lens
Unique solution with the fragment of accumulation is that sight glass is removed out of body cavity and is wiped by using cloth, makes sight glass end alternating temperature
It warms up or using other defogging methods come demisting or cleaning camera lens.And in order to have to remove abdomen to camera lens demisting and removal fragment
Hysteroscope, this is all inconvenient for laparoscopic procedure person and surgeon, and can interrupt and undesirably extend procedure.
In order to solve this problem, application No. is CN200980156794.8, entitled " optimize using during telescope for operation
With maintain field of operation visual system and method " Chinese patent application disclose and a kind of being regarded using with deflection device assembly
The system and method for wild optimization component, the deflection device assembly have important physics, pneumatic and optical characteristics so that minimally invasive hand
Demisting, operative debris deflection, lens of laparoscope cleaning are possibly realized, while also maintain the visual of operative site in art during art
Change.The field-of-view optimization component can have quick-replaceable property, cause clear visual operation method is maintained to become
May, including the laparoscope with different operation characteristic all on sterile operating area can be made (for example, with 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 is integrated with existing a set of mis instruments.It will not interfere operation to arrange, it is only necessary in the stream of Surgical Operating Room (OR) team
Make minimum variation in journey or custom.
Although application No. is CN200980156794.8, entitled " using optimization during telescope for operation and maintain field of operation
The Chinese patent application of visual system and method " efficiently solves the behaviour that the reduction of camera lens visualization is brought in operation
Make the problem of inconvenient, but the instrument of Chinese patent application offer and method still have following defect：(1) product sheath sleeve wall thickness
The puncture outfit for coordinating bigger specification is needed when greatly, using the hysteroscope of similary specification.(2) product structure is complicated, of high cost.(3) it produces
Product operate underaction, and the puncture outfit to connect with airflow pipeline is in gas circuit normally open, it is impossible to close gas circuit.(4) existing phase
Nearly product air bag should be located on airflow pipeline rather than on infusion pipeline.
Invention content
In view of the drawbacks described above of the prior art, the present invention provides a kind of new sheaths for hysteroscope, to be solved
Technical problem is：Not only it can realize and overcome the problems, such as that the reduction of camera lens visualization is brought inconvenient, but also can be in operation
Reduce the outer diameter of the bar portion of entire laparoscope product to coordinate the puncture outfit of more small dimension.
To solve the above problems, the technical solution adopted by the present invention is that：A kind of sheath for hysteroscope, the sheath include
Bar portion with cavity, the inner wall of the cavity of the bar portion have an inwardly projecting spacer portion, and the spacer portion is along the bar portion
Extension.
Preferably, the bar portion of the sheath is made of elastic material.
Preferably, the one kind of the elastic material in flexible PVC, soft TPU, soft TPE and rubber.
Preferably, the most narrow place of the inner wall of the bar portion of the sheath is 9.8~10.1mm.
Preferably, the bar portion of the sheath is made of rigid material.
Preferably, the most narrow place of the inner wall of the bar portion of the sheath is 10~10.3mm.
Preferably, the cross section of the outer wall of the bar portion of the sheath is substantially circular, the outer wall of the bar portion of the sheath
A diameter of 12.24~12.44mm of cross section.
Preferably, the quantity of the spacer portion is at least three, and the space between two neighboring spacer portion forms fluid stream
Dynamic access, respectively intake channel, third path and exhaust channel.
Preferably, the area of the cross section of the intake channel is not less than 8mm respectively2, the cross section of the third path
Area be not less than 2mm2, the area of the cross section of the exhaust channel is respectively not less than 7mm2。
Preferably, the area of the cross section of the intake channel is not less than 8.28mm respectively2, the third path it is transversal
The area in face is not less than 2.07mm2, the area of the cross section of the exhaust channel is respectively not less than 7.08mm2。
Preferably, the area of the cross section of the intake channel is respectively 8.08~8.48mm2, the horizontal stroke of the third path
The area in section is 1.97~2.17mm2, the area of the cross section of the exhaust channel is respectively 6.88~7.28mm2。
Preferably, the sheath further include for by external source fluid and the intake channel and third path at least within
One of connection sheath connector.
Preferably, the sheath connector have for the intake interface that connects external source gas with the intake channel and
Air inlet inner cavity and/or for by external source liquid connected with the third path into liquid interface and feed liquor inner cavity.
Preferably, the quantity of the spacer portion is at least five, and the space between two neighboring spacer portion forms fluid stream
Dynamic access, respectively the first intake channel, the second intake channel, third path, first exhaust access and second exhaust access.
Preferably, the area of the cross section of first intake channel and the second intake channel is not less than 4mm respectively2, institute
The area for stating the cross section of third path is not less than 2mm2, the face of the cross section of the first exhaust access and second exhaust access
Integration Bu little Yu not 3.5mm2。
Preferably, the area of the cross section of first intake channel and the second intake channel is not less than 4.14mm respectively2,
The area of the cross section of the third path is not less than 2.07mm2, the first exhaust access and second exhaust access it is transversal
The area in face is not less than 3.54mm respectively2。
Preferably, the area of the cross section of first intake channel and the second intake channel be respectively 4.04~
4.24mm2, the area of the cross section of the third path is 1.97~2.17mm2, the first exhaust access and second exhaust are led to
The area of the cross section on road is respectively 3.44~3.64mm2。
Preferably, first intake channel and the second intake channel are adjacently positioned, the first exhaust access and second
Exhaust channel is adjacently positioned.
Preferably, the sheath further include for by external source fluid and first intake channel, the second intake channel and
The sheath connector of at least one connection of third path.
Preferably, the sheath connector have for by external source gas and first intake channel and/or second into
The intake interface of gas access connection and air inlet inner cavity and/or for external source liquid to be connect with the feed liquor that the third path connects
Mouth and feed liquor inner cavity.
The present invention also provides a kind of hysteroscope equipment, and including lens assembly, the lens assembly includes rod-shaped pipe fitting, the chamber
Mirror device further includes sheath, the sheath include for store the lens assembly rod-shaped pipe fitting bar portion, the sheath
The outer wall of the rod-shaped pipe fitting of the inner wall of bar portion and the lens assembly is by space interval to form fluid flow passages.
Preferably, the inner wall of the bar portion of the sheath has an inwardly projecting spacer portion, and the spacer portion is along the camera lens
The axis extension of the rod-shaped pipe fitting of component, will be between the outer wall of the inner wall of the bar portion of sheath and the rod-shaped pipe fitting of the lens assembly
Space be divided into multiple fluid flow passages.
Preferably, the bar portion of the sheath is made of elastic material.
Preferably, the one kind of the elastic material in flexible PVC, soft TPU, soft TPE and rubber.
Preferably, the most narrow place of the inner wall of the bar portion of the sheath is 9.8~10.1mm.
Preferably, the bar portion of the sheath is made of rigid material.
Preferably, the most narrow place of the inner wall of the bar portion of the sheath is 10~10.3mm.
Preferably, the cross section of the outer wall of the bar portion of the sheath is substantially circular, the outer wall of the bar portion of the sheath
A diameter of 12.24~12.44mm of cross section.
Preferably, the quantity of the spacer portion is at least three and is led to forming at least three spaced fluid flowings
Road, respectively intake channel, third path and exhaust channel.
Preferably, the area of the cross section of the intake channel is not less than 8mm respectively2, the cross section of the third path
Area be not less than 2mm2, the area of the cross section of the exhaust channel is respectively not less than 7mm2。
Preferably, the area of the cross section of the intake channel is not less than 8.28mm respectively2, the third path it is transversal
The area in face is not less than 2.07mm2, the area of the cross section of the exhaust channel is respectively not less than 7.08mm2。
Preferably, the area of the cross section of the intake channel is respectively 8.08~8.48mm2, the horizontal stroke of the third path
The area in section is 1.97~2.17mm2, the area of the cross section of the exhaust channel is respectively 6.88~7.28mm2。
Preferably, the sheath further include for by external source fluid and the intake channel and third path at least within
One of connection sheath connector.
Preferably, the sheath connector have for the intake interface that connects external source gas with the intake channel and
Air inlet inner cavity and/or for by external source liquid connected with the third path into liquid interface and feed liquor inner cavity.
Preferably, the quantity of the spacer portion is at least five and is led to forming at least five spaced fluid flowings
Road, respectively the first intake channel, the second intake channel, third path, first exhaust access and second exhaust access.
Preferably, the area of the cross section of first intake channel and the second intake channel is not less than 4mm respectively2, institute
The area for stating the cross section of third path is not less than 2mm2, the face of the cross section of the first exhaust access and second exhaust access
Integration Bu little Yu not 3.5mm2。
Preferably, the area of the cross section of first intake channel and the second intake channel is not less than 4.14mm respectively2,
The area of the cross section of the third path is not less than 2.07mm2, the first exhaust access and second exhaust access it is transversal
The area in face is not less than 3.54mm respectively2。
Preferably, the area of the cross section of first intake channel and the second intake channel be respectively 4.04~
4.24mm2, the area of the cross section of the third path is 1.97~2.17mm2, the first exhaust access and second exhaust are led to
The area of the cross section on road is respectively 3.44~3.64mm2。
Preferably, first intake channel and the second intake channel are adjacently positioned, the first exhaust access and second
Exhaust channel is adjacently positioned.
Preferably, the sheath further include for by external source fluid and first intake channel, the second intake channel and
The sheath connector of at least one connection of third path.
Preferably, the sheath connector have for by external source gas and first intake channel and/or second into
The intake interface of gas access connection and air inlet inner cavity and/or for external source liquid to be connect with the feed liquor that the third path connects
Mouth and feed liquor inner cavity.
The present invention also provides a kind of surgery systems, the surgery systems include hysteroscope equipment provided by the present invention, CO2If
Standby, puncture outfit and fluid circuit, wherein, the CO2Equipment by fluid circuit respectively in puncture outfit and hysteroscope equipment
The first intake channel and the second intake channel connection.
Preferably, the surgery systems further include liquid infusion device and air bag, and the liquid infusion device passes through stream
Body pipeline is connected with the third intake channel in hysteroscope equipment, and the air bag is mounted on the CO2Equipment and hysteroscope equipment
Between fluid circuit in.
Preferably, the surgery systems further include air valve, in the fluid circuit of the upstream of the puncture outfit, with control
The opening and closing of the air-flow of the puncture outfit.
The present invention also provides a kind of for maintaining the method for the clarity of hysteroscope camera lens, described method includes following steps：
1) lens assembly is provided, the lens assembly includes rod-shaped pipe fitting；
2) sheath is provided, the sheath includes bar portion, the rod-shaped pipe fitting of the lens assembly is accommodated in the sheath
Bar portion；The inner wall of the bar portion of the sheath and the outer wall of the rod-shaped pipe fitting of the lens assembly by space interval and form fluid stream
Dynamic access；
3) CO is provided2Air-flow so that the CO2Air-flow reaches the rod-shaped pipe fitting by the fluid flow passages
Distally, and the outer surface of the camera lens is flowed through.
Preferably, the inner wall of the bar portion of the sheath has an inwardly projecting spacer portion, and the spacer portion is along the camera lens
The axis extension of the rod-shaped pipe fitting of component, will be between the outer wall of the inner wall of the bar portion of sheath and the rod-shaped pipe fitting of the lens assembly
Space be divided at least four fluid flow passages, respectively the first intake channel, the second intake channel, first exhaust access
With second exhaust access, the CO2Air-flow reaches the rod-shaped pipe fitting by first intake channel and the second intake channel
Distal end.
Preferably, first intake channel and the second intake channel are adjacently positioned, the first exhaust access and second
Exhaust channel is adjacently positioned.
Preferably, the space between the outer wall of the rod-shaped pipe fitting of the inner wall of the bar portion of the sheath and the lens assembly is also
Including third path, described method includes following steps：There is provided liquid flow so that the liquid flow passes through the third path
The distal end of the rod-shaped pipe fitting is reached, and flows through the outer surface of the camera lens.
Beneficial effects of the present invention are：(1) it is worn provided by the present invention for what the sheath of hysteroscope and hysteroscope equipment were adapted to
Pierce device diameter smaller, the wound smaller caused by patient.(2) it is provided by the present invention for the sheath of hysteroscope and hysteroscope equipment knot
Structure is simple, product cost is low.(3) it is provided by the present invention for the sheath of hysteroscope and hysteroscope equipment using flexible, it can close and wear
Device air-flow is pierced, is allowed to that laparoscopic surgery can be used for and is used for thoracoscopic operation.
The technique effect of the design of the present invention, concrete structure and generation is described further below with reference to attached drawing, with
It is fully understood from the purpose of the present invention, feature and effect.
Description of the drawings
Fig. 1 is a kind of composition schematic diagram of preferred embodiment of hysteroscope equipment provided by the present invention.
Fig. 2 is that a kind of cross-sectional view of the bar portion of sheath of the prior art (is cut according at the 1B-1B in Fig. 1
It takes).
Fig. 3 is that the cross-sectional view of the bar portion of the sheath of hysteroscope equipment shown in FIG. 1 (is cut according at the 1B-1B in Fig. 1
It takes).
Fig. 4 is a kind of composition schematic diagram of preferred embodiment of surgery systems provided by the present invention.
Specific embodiment
Terminology employed herein " proximal end " should be understood as in surgical procedure towards one end of operator；This
Term " distal end " should be understood as the one end for being carried out object towards operation in surgical procedure used by text.
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.
Fig. 1 shows a kind of preferred embodiment of hysteroscope equipment provided by the invention.
As shown in Figure 1, the hysteroscope equipment in the specific embodiment includes lens assembly 100 and sheath 200.Lens assembly
100 for being imaged and image information being delivered to image display, including rod-shaped pipe fitting 110 and positioned at the distal end of rod-shaped pipe fitting
Inside camera lens (not shown).Lens assembly 100 is set as technology well-known to those skilled in the art, structure
(configuration including cold light source) this will not be detailed here.In general, the distal end of lens assembly 100 is there are two types of type, 0 ° of distal end or into
The distal end (for example, 30 ° of distal end or 45 ° distal end) of angle.
Sheath 200 includes bar portion 210 and sheath connector 220, in use, bar portion 210 is sleeved on the rod-shaped of lens assembly 100
The outer wall of pipe fitting 110.
Fig. 2 shows a kind of cross section of the bar portion of sheath of the prior art (specifically also can be found in application No. is
CN200980156794.8, entitled " using optimization during telescope for operation and maintaining the visual system and method for field of operation "
Chinese patent application).
As shown in Fig. 2, the wall of the bar portion of this kind of sheath of the prior art has multiple inner cavities.When in use, inner cavity will
CO2The distal end of sheath 200 is conveyed, wherein, two inner cavities are used to transport CO2, for divulging information, an inner cavity is used to transport for two inner cavities
Defeated sterile fluid or air.This kind of sheath can be in real time by CO in surgical procedure2And liquid is to the remote of lens assembly 100
The camera lens at end is rinsed, so as to fulfill overcoming the problems, such as that the reduction of camera lens visualization is brought inconvenient in operation.But
One drawback of this kind of sheath is that sheath sleeve wall thickness is big, using the laparoscope of similary specification lens assembly when need coordinate bigger
The puncture outfit of specification.It needs to consider following factor in the size design for considering sheath：(1) internal diameter of the bar portion of sheath is slightly larger than
The outer diameter of the rod-shaped pipe fitting of lens assembly；(2) it provides the channel of transport fluid broad enough and overcomes camera lens in operation to realize
Visualization reduction bring it is inconvenient the problem of；(3) outer diameter of the bar portion of sheath is slightly less than the internal diameter of puncture cannula.
Desirably, in the limitation of used laparoscopic instrument and given specific dimensions and the shape of technology
Under, make the outer diameter bigger of the bar portion of sheath as much as possible.This is because the internal diameter and outer diameter of the bar portion of sheath collectively define sheath
The wall thickness of the bar portion of set, and the length of the bar portion of wall thickness and sheath has determined the CO that can be used for transmitting by sheath2And stream
The maximum region of body, further, for supplying CO2Fluid flowing inner cavity or the regions of multiple inner cavities define and pass through camera lens
CO2Maximum stream flow.Flow should prevent camera lens from hazing to supply enough, and flow should be also to be enough to make during operation
Operative debris deflects, the visual field far from camera lens.In general, CO2The medical grade CO that equipment is provided2Purity 99%, moreover, CO2If
The standby pressure that can be sensed in circuit if the pressure sensed closes cycle in 15mmHg or higher than 15mmHg when, is sensing
The ON cycle when pressure arrived is less than 15mmHg.Result of the test shows if to ensure ideal camera lens in surgical procedure
Readability needs at least to ensure about 1.0 liters per minute of CO2Flow, if CO2Flow less than 0.8 liter per minute,
Then it is not enough to prevent the apparent moisture accumulation on lens of laparoscope.
For the bar portion of sheath shown in Fig. 2, such as to need to provide about 1.0 liters per minute of CO2Flow, pass through test
It was found that conveying CO2The sum of the cross-sectional area of two inner cavities substantially need for 8mm2More than, in two of ventilation
The sum of cross-sectional area of chamber is substantially needed in 7mm2More than, in addition, for ship sterile fluid or the horizontal stroke of the inner cavity of air
Area of section is substantially needed in 2mm2More than, in this way, the sum of cross-sectional area of all inner cavities substantially needs to reach 17mm2
Left and right.Due to the considerations of needing necessary structural support and manufacture craft, it has been found that the laparoscope of adaptation certain specification
Sheath cannot be adapted to similary specification needle thorn casing.For example, a kind of rod-shaped pipe of the lens assembly of more commonly used laparoscope
The outer diameter of part is 10mm, and corresponding puncture cannula is 10mm specifications, and the internal diameter of the puncture cannula of 10mm specifications is about
12.9mm.In this way, the internal diameter of the bar portion of sheath needs to be more than 10mm, and need to allow certain hole, it is generally the case that in it
Diameter is usually required in 10.3mm or so.If necessary to ensure the cross-sectional area of inner cavity described above, consider further that necessary
Structural support and manufacture craft, the wall thickness of the bar portion of sheath are needed at least in 1.4~more than 1.5mm, in this way, the bar portion of sheath
Outer diameter need to reach 13.1~13.3mm or so, it is impossible to be adapted to the puncture cannula of 10mm specifications, need the puncture of bigger specification
Casing.If necessary to be adapted to the puncture cannula of 10mm specifications, the outer diameter of the bar portion of sheath needs to be less than 12.9mm, and needs to permit
Perhaps certain hole, it is generally the case that its outer diameter is usually required in 12.3mm or so.
Another drawback using sheath shown in Fig. 2 is that the processing of the bar portion of sheath is relatively difficult, and cost is higher.
The defects of based on above-described existing sheath, in the preferred tool of one kind of hysteroscope equipment provided by the present invention
In body embodiment, sheath is designed to new structure (Fig. 3).
As shown in figure 3, the inner wall of the bar portion 210 of sheath 200 has inwardly projecting spacer portion 219, the bar portion of sheath 200
The outer wall (dotted line in Fig. 3 represents) of 210 inner wall and the rod-shaped pipe fitting 110 of lens assembly 100 is spaced by spacer portion 219 with shape
Into fluid flow passages.The quantity of spacer portion 219 is five, to form a spaced fluid flow passages, respectively the
One intake channel 211, the second intake channel 212, third path 213, first exhaust access 214 and second exhaust access 215.Its
In, the first intake channel 211 and the second intake channel 212 are used for CO2Or other gases are transported to the rod-shaped of lens assembly 100
The distal end of pipe fitting 110, first exhaust access 214 and second exhaust access 215 are used for CO2Or other gases are transported to lens group
The proximal end of the rod-shaped pipe fitting 110 of part 100, third path 213 are used for sterile liquid or other fluid conveyings to lens assembly 100
Rod-shaped pipe fitting 110 distal end.In order to optimize the effect of cleaning camera lens and exhaust, the first intake channel 211 and the second air inlet are led to
Road 212 is adjacently positioned, and first exhaust access 214 and second exhaust access 215 are adjacently positioned.Change as the specific embodiment
Shape, fluid flow passages may be set to be three (settings three spacer portions 219), by the first intake channel 211 and second into
Gas access 212 is merged into an intake channel, and it is logical that first exhaust access 214 and second exhaust access 215 are merged an exhaust
Road.
The design of shown sheath according to fig. 3, the outer diameter of the bar portion 210 of sheath 200 is no more than 12.9mm, to be adapted to 10mm
The needle thorn casing of specification.According to the test of applicant, the outer diameter of the bar portion 210 of sheath 200, can be very in 12.34mm or so
Swimmingly operated in the needle of 10mm specifications thorn casing.Certainly, the original that those skilled in the art can also provide according to the present invention
It manages and appropriate adjustment, such as the adjustment of the range in 12.24~12.44mm, Shen is carried out to the outer diameter of the bar portion 210 of sheath 200
It is all feasible to ask someone to test.
The bar portion 210 of sheath 200 can be made of rigid material (such as metal material), in this way, the bar portion of sheath 200
210 most narrow place (being limited by the inner cavity surface of five spacer portions 219) is not less than 10mm, to be adapted to the lens group of 10mm specifications
The rod-shaped pipe fitting 110 of part 100.It, can when the bar portion 210 of sheath 200 most narrow is in 10.3mm or so according to the test of applicant
The rod-shaped pipe fitting 110 of lens assembly 100 with much smoother is received into the bar portion 210 of sheath 200, and by lens assembly 100
Rod-shaped pipe fitting 110 pulls out the bar portion 210 of sheath 200.Certainly, the original that those skilled in the art can also provide according to the present invention
It manages and appropriate adjustment, such as the adjustment of the range in 10~10.3mm, application is carried out to the most narrow place of the bar portion 210 of sheath 200
People's test is all feasible.
The bar portion 210 of sheath 200 can also be by elastic material (such as flexible PVC, soft TPU, soft TPE and rubber)
It is made, in this way, relative to rigid material, the most narrow place of the inner wall of the bar portion 210 of sheath 200 can suitably reduce, applicant
Test, for elastic material, the most narrow place of the inner wall of the bar portion 210 of sheath 200 is relatively suitble to for 9.8~10.1mm.Use bullet
Property material a benefit be that the outer wall of the inner wall of the bar portion 210 of sheath 200 and the rod-shaped pipe fitting 110 of lens assembly 100 can be more
Closely fitting.
According to size design described above, such as using the rod-shaped pipe fitting 110 of the lens assembly 100 of 10mm specifications, sheath
The most narrow place of the bar portion 210 of set 200 is set as 10.3mm, and the wall thickness in the non-gap portion of the bar portion 210 of sheath 200 is (full for 0.4mm
The requirement of the manufacture craft of the necessary structural support of foot), the outer diameter of the bar portion 210 of sheath 200 is set as 12.34mm, lens group
The outer wall of the rod-shaped pipe fitting 110 of part 100 and the interval of the inner wall of the bar portion 210 of sheath 200 are then 0.77mm, and in addition considering must
The size of spacer portion 219 wanted, the cross-sectional area in gap is about 17~22mm2, wherein, it can meet completely：First
The area of the cross section of 211 and second intake channel 212 of intake channel is not less than 4mm respectively2, the cross section of third path 213
Area be not less than 2mm2, the area of the cross section of first exhaust access 214 and second exhaust access 215 is not less than respectively
3.5mm2.It is highly preferred that applicant, which tests, finds that following configuration is relatively suitble to：First intake channel 211 and the second intake channel
The area of 212 cross section is respectively 4.14mm2, the area of the cross section of third path 213 is 2.07mm2, first exhaust access
214 and the area of cross section of second exhaust access 215 be respectively 3.54mm2.Certainly, those skilled in the art can also foundation
Adjustment of the principle provided by the invention to dimensions above, for example, it is all feasible that applicant's test adjusts in following range：The
The area of the cross section of one intake channel 211 and the second intake channel 212 is respectively 4.04~4.24mm2, third path 213
The area of cross section is 1.97~2.17mm2, the Line Integral of the cross section of first exhaust access 214 and second exhaust access 215
It Wei not 3.44~3.64mm2。
For the structure of the bar portion 210 of sheath 200 shown in Fig. 3, what those skilled in the art were usually thought deeply is：Due to
First intake channel 211, the second intake channel 212, third path 213, first exhaust access 214 and second exhaust access 215
Between there is no be spaced (spacer portion 219 of the inner wall of the bar portion 210 of sheath 200 and the rod-shaped pipe fitting of lens assembly 100 completely
There are certain gaps between 110 outer wall), the CO in 211/ second intake channel 212 of the first intake channel2Conveying and first
CO in 214/ second exhaust access 215 of exhaust channel2Conveying may influence each other, alternatively, the first intake channel 211/ the
CO in two intake channels, 212/ first exhaust access, 214/ second exhaust access 2152Conveying and sterile liquid in third path
Conveying may influence each other.Present applicant in testing it was unexpectedly observed that when sheath 200 bar portion 210 most
Narrow place's (being limited by the inner cavity surface of five spacer portions 219) (is directed to 10mm specifications) in 10.3mm or so, the first air inlet
CO in access 211, the second intake channel 212, third path 213, first exhaust access 214 and second exhaust access 2152/ nothing
The conveying of bacteria liquid works as CO there is no significantly influencing each other2Equipment provide the air pressure of 14mmHg or so and with sheath 200
First intake channel 211 of bar portion 210 is connected with the second intake channel 212, while sterile liquid provides equipment and third path
213 connections, it is found by the applicant that CO in the first intake channel 211 and the second intake channel 2122Flow can maintain it is per minute
About 1.0 liters or more, and in third path 213 sterile liquid flowing it is also much smoother.
In this specific embodiment, the shape proximally and distally of the bar portion 210 of sheath 200 and structure with application No. is
CN200980156794.8, entitled " using optimization during telescope for operation and maintaining the visual system and method for field of operation "
Recorded related content is similar in Chinese patent application.For example, the distal end of the bar portion 210 of sheath 200 can set it is similar
Stop member, prevent the rod-shaped pipe fitting 110 of lens assembly 100 distal end extend over sheath 200 bar portion 210 distal end, so as to
So that the distal end of the camera lens of the distal end of the rod-shaped pipe fitting 110 of lens assembly 100 and the bar portion 210 of sheath 200 is in desired
Generally aligned with state.The proximal end of the bar portion 210 of sheath 200 can also set similar retainer, the bar with lens assembly 100
Shape pipe fitting 110 is frictionally engaged, and the rod-shaped pipe fitting 110 of lens assembly 100 is prevented axially to be exited from the bar portion 210 of sheath 200.Sheath
The distal end of the bar portion 210 of set 200 can also set similar deflection device assembly, and the main function for deflecting device assembly is to establish ideal
CO2Flow path, make CO2It flows through before camera lens, to prevent camera lens from hazing.
In this specific embodiment, sheath 200 further includes sheath connector 220, the effect of sheath connector 220 be by
External source gas is (for example, CO2) and/or liquid (for example, sterile water) and the first intake channel 211, the second intake channel 212 and the
Three-way 213 connects, and external source gas and/or liquid are delivered to the distal end of sheath or lens assembly.Sheath connector 220 is also
Can be arranged to by first exhaust access 214 and second exhaust access 215 and specific gas exhaust piping or exhaust apparatus (for example,
When necessary, air extractor can be connected) connection.The shape and structure of sheath connector 220 with application No. is
CN200980156794.8, entitled " using optimization during telescope for operation and maintaining the visual system and method for field of operation "
Recorded manifold is similar in Chinese patent application.Sheath connector 220 can have multiple inner cavities, connect respectively with each access
It is logical, it is connected respectively with the first intake channel 211, the second intake channel 212 and third path 213 for example, sheath connector has
The first air inlet inner cavity, the second air inlet inner cavity and third inner cavity (if third inner cavity mainly for delivery of liquid, be properly termed as into
Liquid inner cavity).Sheath connector can also be connected with an inner cavity with several accesses, for example, sheath connector have with first into
Gas access 211, the second intake channel 212 the air inlet inner cavity of connection and in the third that is connected with third path 213 simultaneously
Chamber.Sheath connector can also have the inner cavity that is connected with first exhaust access 214 and/or second exhaust access 215, then with spy
Fixed gas exhaust piping or exhaust apparatus connection.Sheath connector 220 can also have multiple interfaces, for by external source fluid and respectively
Inner cavity connects, and is further connected again with each access.For example, when sheath connector has the first air inlet inner cavity, the second air inlet inner cavity
During with third inner cavity, the first intake interface, the second intake interface, third interface can be set (if third interface is mainly used for
Liquid is conveyed, is properly termed as into liquid interface) it is connected respectively with the first air inlet inner cavity, the second air inlet inner cavity and third inner cavity, also may be used
An intake interface to be set to be connected with the first air inlet inner cavity and the second air inlet inner cavity, then third interface is set to connect with third inner cavity
It is logical.When sheath connector have the air inlet inner cavity that is connected simultaneously with the first intake channel 211, the second intake channel 212 and with
Third path 213 connect third inner cavity when, can set air inlet import, third interface respectively with air inlet inner cavity, third inner cavity
Connection.
The laparoscope that the specific embodiment provides is needed when in use with outer fluid communication, particularly CO2Equipment.Abdomen
Hysteroscope and CO2Equipment etc. forms laparoscopic surgical system together.Fig. 4 shows one kind of surgery systems provided by the invention preferably
Specific embodiment.
As shown in figure 4, the surgery systems in the specific embodiment (do not show including laparoscope described above in Fig. 4
Go out) and CO2Equipment 300, puncture outfit 400, fluid circuit 500, liquid infusion device 600, pipeline connecting parts 700, air valve
800 and air bag 510.Wherein, CO2The main function of equipment 300 is to provide CO2Air-flow, the effect of puncture outfit 400 is to operation
Object carries out the puncture of body, the effect of fluid circuit 500 be by air-flow be conveyed to puncture outfit and sheath and by liquid flow it is defeated
Sheath is given, the effect of liquid infusion device 600 is to provide sterile liquid, to be rinsed (root to camera lens when necessary
According to particular situation, liquid infusion device 600 can not also provide), the effects of pipeline connecting parts 700 by fluid circuit 500 with
The interface of sheath connector 220 is quickly connected.When surgery systems in use, pipeline connecting parts 700 are by way of plug
It is connect with the interface of sheath connector 220, as a result, CO2Equipment 300 by fluid circuit 500 respectively with first in laparoscope
Intake channel and the second intake channel, puncture outfit 400 connect, and liquid infusion device 600 passes through in fluid circuit 500 and laparoscope
Third intake channel connection.CO2The CO that equipment provides2Air-flow lead to all the way the first intake channel in laparoscope and second into
Gas access, another way lead to puncture outfit 400.The quantity of puncture outfit 400 can be multiple, in this way, just needing a plurality of branch line
Lead to multiple puncture outfits.
For CO2Equipment 300, puncture outfit 400, fluid circuit 500, liquid infusion device 600, pipeline connecting parts 700
Concrete configuration be all for those skilled in the art conventional technique (can also referring to application No. is CN200980156794.8,
Institute in the Chinese patent application of entitled " using optimization during telescope for operation and maintaining the visual system and method for field of operation "
The corresponding contents of record), this will not be detailed here.
Surgery systems in the specific embodiment with application No. is CN200980156794.8, entitled " using performing the operation
Recorded corresponding contents institute in the Chinese patent application of optimization and the visual system and method for maintenance field of operation during sight glass "
The difference is that the configuration of air valve 800 and air bag 510.
Surgery systems further include air valve 800 in this specific embodiment, the fluid circuit positioned at the upstream of puncture outfit 400
In, for controlling the opening and closing of the air-flow of puncture outfit 400.Application No. is CN200980156794.8, it is entitled " use hand
Recorded surgery systems in the Chinese patent application of optimization and the visual system and method for maintenance field of operation during art sight glass "
The main problem solved is that solve the problems, such as that the reduction of camera lens visualization is brought inconvenient in laparoscopic surgery, because
This is provided with sheath, and utilizes the CO being had been used up in laparoscopic surgery2Air-flow is that the camera lens of laparoscope keeps clear.In fact,
The contaminated situation of camera lens can be also encountered in thoracoscopic operation, but application No. is the Chinese patent Shens of CN200980156794.8
Please in recorded surgery systems cannot directly be used in thoracoscopic operation because thoracic cavity cannot utilize CO2Air-flow is expanded
Chamber.Based on this, in the specific embodiment of surgery systems provided by the invention, air valve 800 is additionally arranged, in this way, the specific reality
The surgery systems for applying mode both can be used for laparoscopic surgery (air valve 800 is opened in operation), it can also be used to thoracoscopic operation (hand
Air valve 800 is closed in art).If the quantity of puncture outfit is multiple, same amount of air valve can be set to control each puncture outfit
Air-flow opening and closing.
In addition, in this specific embodiment, surgery systems further include air bag 510 (air bag 510 be equivalent to application No. is
Recorded extrusion pump in the Chinese patent application of CN200980156794.8), it is mounted on CO2Equipment 300 and laparoscope
Between fluid circuit in.The main function of air bag 510 is additional increase CO2The rate or impact force of air-flow.Work as CO2Equipment 300
The normobaric CO provided2Deficiency of air, can be with manual squeezing air bag 510 to provide bigger so that when camera lens keeps clear
CO2During the impact force of air-flow, particularly camera lens flushed with the sterile liquid of the offer of liquid infusion device 600, sterile liquid
Be easy to be adhered to the surface of camera lens, in this way can extruding gasbag 510 to wash out the liquid on camera lens surface.Application No. is
In the Chinese patent application of CN200980156794.8 in recorded surgery systems, air bag (extrusion pump in other words) is arranged on liquid
In fluid circuit between body injection device 600 and laparoscope, purpose is exactly the liquid in order to clean camera lens surface.The application
Applicants have unexpectedly found that, air bag 510 is arranged in CO2It, can when in the fluid circuit between equipment 300 and laparoscope
To provide more powerful gas shock power so that the liquid on cleaning camera lens surface is more effective.
The preferred embodiment of the present invention described in detail above.It should be appreciated that those of ordinary skill in the art without
Creative work is needed according to the present invention can to 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 in the protection domain being defined in the patent claims.
Claims (10)
1. a kind of sheath for hysteroscope, which is characterized in that the sheath includes the bar portion with cavity, the cavity of the bar portion
Inner wall there is inwardly projecting spacer portion, the spacer portion extends along the bar portion.
2. sheath as described in claim 1, which is characterized in that the bar portion of the sheath is made of elastic material, the sheath
Bar portion inner wall most narrow place be 9.8~10.1mm.
3. sheath as described in claim 1, which is characterized in that the bar portion of the sheath is made of rigid material, the sheath
Bar portion inner wall most narrow place be 10~10.3mm.
4. sheath as described in claim 1, which is characterized in that the quantity of the spacer portion is at least three, two neighboring
Space between portion forms fluid flow passages, respectively intake channel, third path and exhaust channel, the intake channel
The area of cross section be respectively 8.08~8.48mm2, the area of the cross section of the third path is 1.97~2.17mm2, institute
The area for stating the cross section of exhaust channel is respectively 6.88~7.28mm2。
5. sheath as described in claim 1, which is characterized in that the quantity of the spacer portion is at least five, two neighboring
Space between portion forms fluid flow passages, respectively the first intake channel, the second intake channel, third path, first
The area of the cross section of exhaust channel and second exhaust access, first intake channel and the second intake channel is respectively 4.04
~4.24mm2, the area of the cross section of the third path is 1.97~2.17mm2, the first exhaust access and second exhaust
The area of the cross section of access is respectively 3.44~3.64mm2。
6. a kind of hysteroscope equipment, including lens assembly, the lens assembly includes rod-shaped pipe fitting, which is characterized in that the hysteroscope
Equipment further includes sheath, the sheath include for store the lens assembly rod-shaped pipe fitting bar portion, the bar of the sheath
The outer wall of the rod-shaped pipe fitting of the inner wall in portion and the lens assembly is by space interval to form fluid flow passages；The sheath
The inner wall of bar portion has inwardly projecting spacer portion, and the spacer portion extends along the axis of the rod-shaped pipe fitting of the lens assembly,
Multiple fluids is divided into flow the space between the outer wall of the inner wall of the bar portion of sheath and the rod-shaped pipe fitting of the lens assembly
Access.
7. hysteroscope equipment as claimed in claim 6, which is characterized in that the quantity of the spacer portion is at least three to be formed extremely
Few three spaced fluid flow passages, respectively intake channel, third path and exhaust channel；The intake channel
The area of cross section is respectively 8.08~8.48mm2, the area of the cross section of the third path is 1.97~2.17mm2, it is described
The area of the cross section of exhaust channel is respectively 6.88~7.28mm2。
8. hysteroscope equipment as claimed in claim 6, which is characterized in that the quantity of the spacer portion is at least five to be formed extremely
Few five spaced fluid flow passages, respectively the first intake channel, the second intake channel, third path, first row
The area of the cross section of gas access and second exhaust access, first intake channel and the second intake channel is respectively 4.04~
4.24mm2, the area of the cross section of the third path is 1.97~2.17mm2, the first exhaust access and second exhaust are led to
The area of the cross section on road is respectively 3.44~3.64mm2。
9. a kind of surgery systems, which is characterized in that the hysteroscope that the surgery systems are included as described in any in claim 6-8 is set
Standby, CO2Equipment, puncture outfit and fluid circuit, wherein, the CO2Equipment by fluid circuit respectively with puncture outfit and abdominal cavity
The first intake channel and the connection of the second intake channel in mirror.
10. it is a kind of for maintain hysteroscope camera lens clarity method, which is characterized in that described method includes following steps：
1) lens assembly is provided, the lens assembly includes rod-shaped pipe fitting；
2) sheath is provided, the sheath includes bar portion, the rod-shaped pipe fitting of the lens assembly is accommodated in the bar portion of the sheath；
The outer wall of the rod-shaped pipe fitting of the inner wall of the bar portion of the sheath and the lens assembly is by space interval and to form fluid flowing logical
Road；
3) CO is provided2Air-flow so that the CO2Air-flow reaches the distal end of the rod-shaped pipe fitting by the fluid flow passages,
And flow through the outer surface of the camera lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611124369.9A CN108175365A (en) | 2016-12-08 | 2016-12-08 | A kind of sheath and hysteroscope equipment and surgery systems for hysteroscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611124369.9A CN108175365A (en) | 2016-12-08 | 2016-12-08 | A kind of sheath and hysteroscope equipment and surgery systems for hysteroscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108175365A true CN108175365A (en) | 2018-06-19 |
Family
ID=62544959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611124369.9A Pending CN108175365A (en) | 2016-12-08 | 2016-12-08 | A kind of sheath and hysteroscope equipment and surgery systems for hysteroscope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108175365A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111419145A (en) * | 2020-03-09 | 2020-07-17 | 上海火象医疗科技有限公司 | Lumen examination and treatment auxiliary device |
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|---|---|---|---|---|
| CN201734779U (en) * | 2010-06-10 | 2011-02-09 | 西安交通大学 | Sheath type flushing and suction device for laparoscopic operation |
| CN102307511A (en) * | 2008-12-10 | 2012-01-04 | 微创设备有限公司 | Systems and methods for optimizing and maintaining visualization of a surgical field during the use of surgical scopes |
| CN104840179A (en) * | 2015-04-30 | 2015-08-19 | 上海麦添医疗科技有限公司 | Endoscope system capable of optimizing and maintaining visual operative field |
| CN207125705U (en) * | 2016-12-08 | 2018-03-23 | 上海执中医疗技术有限公司 | A kind of sheath and hysteroscope equipment and surgery systems for hysteroscope |
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2016
- 2016-12-08 CN CN201611124369.9A patent/CN108175365A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102307511A (en) * | 2008-12-10 | 2012-01-04 | 微创设备有限公司 | Systems and methods for optimizing and maintaining visualization of a surgical field during the use of surgical scopes |
| CN201734779U (en) * | 2010-06-10 | 2011-02-09 | 西安交通大学 | Sheath type flushing and suction device for laparoscopic operation |
| CN104840179A (en) * | 2015-04-30 | 2015-08-19 | 上海麦添医疗科技有限公司 | Endoscope system capable of optimizing and maintaining visual operative field |
| CN207125705U (en) * | 2016-12-08 | 2018-03-23 | 上海执中医疗技术有限公司 | A kind of sheath and hysteroscope equipment and surgery systems for hysteroscope |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111419145A (en) * | 2020-03-09 | 2020-07-17 | 上海火象医疗科技有限公司 | Lumen examination and treatment auxiliary device |
| CN111419145B (en) * | 2020-03-09 | 2021-05-07 | 上海火象医疗科技有限公司 | Lumen examination and treatment auxiliary device |
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