Endoscope sleeve
Technical field
The utility model belongs to medical machinery field, and in particular to a kind of endoscope sleeve.
Background technology
In endoscopy/operation, such as Stomach duodenum, small intestine are inserted into or big along body cavity using flexible instrument
The body interior of intestines etc, the apparatus is provided with optical fiber or charge coupling device (CCD) video camera so that image can surround curved
Song transmits and can generate image and shown on screen.For example, Sigmoidoscope and small intestinal endoscopy, the healthy shape to assess intestines
State.Due to intestines length and curling, colon internal layer is pleated structure, therefore often there is in microscopy great difficulty, such as endoscope
End enter in colon intestinal lumen when being checked, these folds can hinder medical personnel to observe intestinal wall mucous membrane surface, be particularly
It is hidden in precancerous lesion and malignant change in fold;Also often occur that excrement and liquid residue are hidden in colon wall, hinder knot
Situations such as correct inspection of intestinal tissue.
In order to overcome microscopy problem encountered, such as people have done various effort, well known in the prior art, adopt
With the colonoscopy of double bolloon, however double bolloon colonoscopy need a large amount of add-on kits, operator control air bag sequential inflation and put
High skill in terms of gas, the prolonged operation of it or one, it is sometimes desirable to take several hours, and exist in intestinal wall and " beat
It is sliding ", cannot be used for the problems such as biopsy or treatment.PCT/GB2011/050981 discloses a kind of for specula in medical treatment
Tool, with multiple movable, in outside inclined prominent element coverings, the covering includes being set on endoscope
Elongated tubular member, tubular member outer surface is provided with protrusion element spaced apart, and each, which protrudes element, has end and base portion,
Prominent element can be rotated around its base portion, prominent element fan out, with the body passageway with being inserted with medical scoping device
Internal chamber wall is contacted, and is provided support to internal chamber wall and expanded the internal chamber wall.But, this product is moving back the spectroscopy stage, to intestines
The fold of wall pushes that power is not enough aside, and during inspection, support intestinal wall power is not enough, can not effectively expand the visual field, and with the friction of intestinal wall
Power is too small, easily skids.In actual use because tubular element is too soft, it is necessary to the external edge surface of tubular element adds sleeve,
As outer wall support, but outer wall is often harder, and tissue can be damaged, and complex manufacturing technology, cost are high.
PCT/US2013/044407 discloses a kind of endoscope sleeve, and the endoscope sleeve includes tubular element, the protrude element separated
From tubular element extension.Protrude element is all flexible on the nearside and distal direction towards tubular element.Proximally direction is bent
Power (insertion force) needed for protrude element is less than the power (withdrawal force) needed for bending protrude element towards distal direction.Protrude element
Outer perimeter increases and reduced with withdrawal force.The shortcoming of this product is to enter the large intestine stage, and resistance is very big, and patient is very painful;By
It is excessive in external diameter, it is highly difficult into ileocaecal sphineter, examination, easy missing inspection lesion, product can not be carried out to the lesion at ileocaecal sphineter
It is very thick and heavy, delay the turning of endoscope lens position.
The content of the invention
The utility model purpose is to disclose a kind of endoscope sleeve, and cylindrical body is arranged on several with cylindrical body
On protrusion element, be improved by the structure to cylindrical body and prominent element, with endoscope assembling in use, effectively
By the effect of endoscope outer wall so that resistance is small when endoscope enters human body with sleeve, patient is without pain, when moving back spectroscopy
Interacted and coordinated with endoscope wall using the first protuberance in prominent element so that second in prominent element protrudes
Portion, has enough support forces to support the cavity wall of human body/organ-/ tissue cavity, sufficiently large space is formed to endoscope distal end,
So that endoscopic visual becomes apparent from, microscopy accuracy rate is effectively improved.
The technical solution adopted in the utility model is:
Endoscope sleeve, for being set in endoscope distal end, is arranged on cylindrical body with cylindrical body with several
Protrusion element, the barrel of the cylindrical body is provided with several connecting holes, and the prominent element has into cylindrical body
First protuberance of portion's extension and to the second protuberance extended outside cylindrical body, first protuberance and the second protuberance
Junction be hinged or be attached on barrel by connecting hole, the prominent element is by axle center of junction in 0 °~180 ° of model
Rotated around it in enclosing;First protuberance interacts with endoscope outer wall;First protuberance and the second protuberance
Angle α is 90 °~270 °, and the angle β of the second protuberance and axis is 25 °~155 °.
Described endoscope sleeve, when prominent element is tending to 0 ° of position, the second protuberance prolongs to outside cylindrical body
Point to endoscope rear end in the end stretched;When prominent element is 90 ° of positions, the second protuberance vertical sleeve axis;Work as protrusion
Element is when tending to 180 ° of positions, and the second protuberance points to endoscope distal end to the end extended outside cylindrical body.
Described endoscope sleeve, the first protuberance and the second protuberance formation turns angled construction, the first protuberance
Angle α with the second protuberance is 120 °~130 °;
Described endoscope sleeve, when sleeve is under normal condition, i.e., sleeve is not set on endoscope, and described second
Protuberance and the angle β of sleeve axis are 90 °.
Described endoscope sleeve, first protuberance have with endoscope outer wall act on the first corner side wall and with
The second opposite corner side wall of first corner side wall;When sleeve is set on endoscope, endoscope outer wall and the first corner side wall
During effect so that prominent element is rotated, the second protuberance points to endoscope rear end to the end extended outside cylindrical body;I.e.
Two protuberances and the angle β of sleeve axis are 0 °~85 °.
Described endoscope sleeve, when sleeve is set on endoscope, and endoscope outer wall and the first corner side wall are acted on,
So that prominent element is rotated, the second protuberance points to endoscope rear end to the end extended outside cylindrical body, i.e., second protrudes
The angle β of portion and sleeve axis is 5 °~85 °, and the outer wall of the second corner side wall and cylindrical body tends in same curved surface.
Described endoscope sleeve, several connecting holes are provided at circumferentially spaced along the barrel of cylindrical body;The connecting hole
Set-up mode on barrel is arranged circumferentially for several connecting holes in many floor shapes along barrel or several connecting holes are in
Single floor shape is arranged circumferentially along barrel.
Described endoscope sleeve, is provided with convex tendon, and institute on cylindrical body inwall between two neighboring connecting hole
Convex tendon is stated to set with sleeve axis parallel.
Described endoscope sleeve, second protuberance is additionally provided with the end wall of the end extended outside cylindrical body
Several are raised or sunken.
Described endoscope sleeve, the opening that the cylindrical body is located at endoscope distal end sets camber closing in type knot
Structure so that the outer wall of the opening and endoscope distal end is brought into close contact.
The utility model has the advantages that:
Using the utility model endoscope sleeve enter body/organ-/ tissue (such as large intestine) chamber stage resistance it is small, patient
Without pain.The spectroscopy stage is moved back, the first protuberance and the second protuberance is used because the utility model protrudes element, first dashes forward
Go out portion to interact with endoscope outer wall so that the second protuberance there are enough support forces to support body/organ-/ tissue chamber
Cavity wall (such as intestinal wall), forms sufficiently large space to endoscope distal end so that endoscopic visual becomes apparent from;Second protuberance
The end extended outside to cylindrical body is additionally provided with bulge-structure or sunk structure, can increase and body/organ-/ tissue chamber cavity wall
The friction of (such as intestinal wall) so that the utility model sleeve can easily push body/organ-/ tissue chamber aside as finger
The fold of cavity wall (such as intestinal wall), apparent clear be presented in lesion is cured in the medical personnel visual field;
Convex tendon is provided with by being located on cylindrical body inwall between two neighboring connecting hole, convex tendon is put down with sleeve axis
Row is set, and on the one hand increases the hardness of cylindrical body barrel, on the other hand after sleeve and endoscope are assembled, outside cylindrical body
A depressed part can be formed by being located on wall between two convex tendons, when entering human body, and the second protuberance in prominent element can be with
It is absorbed in the depressed part, effectively reduces the overall external diameter of sleeve, reduce resistance, reach the unpainful excellent effect of patient.
The utility model sleeve generally soft structures, to human body/organ-/ tissue fanout free region.
Brief description of the drawings
Fig. 1 is the axle surveys view of embodiment endoscope sleeve.
Fig. 2 is the front view of endoscope sleeve shown in Fig. 1.
Fig. 3 is the top view of endoscope sleeve shown in Fig. 1.
Fig. 4 is A-A sectional views shown in Fig. 3.
Fig. 4 .1 are Fig. 4 partial enlarged drawing.
Fig. 5 is the schematic diagram of endoscope sleeve shown in endoscope and Fig. 1.
Fig. 6 is schematic diagram after endoscope sleeve assembling shown in endoscope and Fig. 1.
Fig. 7 is the sectional view after endoscope sleeve shown in Fig. 6 is assembled.
Fig. 8 is the schematic diagram for entering the cavity stage after endoscope sleeve shown in Fig. 6 is assembled.
Fig. 9 is the schematic diagram for moving back the spectroscopy stage after endoscope sleeve shown in Fig. 6 is assembled from cavity.
Figure 10 is that prominent element sets figure one in the different of cylindrical body outer wall.
Figure 11 is that prominent element sets figure two in the different of cylindrical body outer wall.
Figure 12 is that the angle α of the first protuberance and the second protuberance is 217 °.
Wherein, 1- endoscopes, 11- endoscopes rear end, 12- endoscope distal ends, 13- endoscope outer walls, 2- cylindrical bodies,
21- cylindrical body outer walls, 22- cylindrical body inwalls, 23- connecting holes, 24- convex tendons, 25- arc closing in type structures, 3- protrudes member
Part, the protuberances of 31- first, the protuberances of 32- second, 33- junctions, the first corners of 34- side wall, the second corners of 35- side wall, 36-
Second protuberance is to the end extended outside cylindrical body, and 37- is raised, 4- sleeves axis, 5- bodies/organ-/ tissue chamber
Embodiment
The utility model endoscope sleeve is specifically described in conjunction with drawings and examples, but not limited to this.As schemed
1-11 endoscope sleeve, for being set in endoscope distal end 12, the sleeve generally soft structures, using to human body/device
Polymer, elastomer or the rubber of official/tissue fanout free region, such as polyurethane, natural rubber, silicones and silicone elastomer material
Material, the material is preferably transparent, body/organ-/ tissue can not only be supported, also with visualization.
Endoscope sleeve has the protrusion element 3 that cylindrical body 2 is arranged on several on cylindrical body 2, cylindrical body 2
Barrel be provided with several connecting holes 23, prominent element 3 have the first protuberance 31 for extending to the inside of cylindrical body 2 and to
Second protuberance 32 of the outside of cylindrical body 2 extension, the shape of second protuberance can be wedge shape, bar shaped, long square bar, fan
Shape, flap-like etc..
Prominent element 3 passes through the barrel of cylindrical body 2 by connecting hole 33, the first protuberance 31 and the second protuberance 32
Junction 33 is hinged or is attached on the barrel of cylindrical body 2 in connecting hole 23, and prominent element 3 is that axle center can with junction 33
Rotated around it in the range of 0 °~180 °;First protuberance 31 interacts with endoscope outer wall;The in prominent element 3
The angle α of one protuberance 31 and the second protuberance 32 is 90 °~270 °.Figure 12 shows the first protuberance 31 and the second protuberance
32 angle α is 217 ° of situation.
Preferably, the first protuberance 31 and the formation of the second protuberance 32 turn angled construction, and the first protuberance 31 and second is prominent
The angle α for going out portion 32 is 120 °~130 °, and the α being more highly preferred to is 125 ° as shown in Fig. 4 .1;
Second protuberance 32 and the angle β of sleeve axis are 25 °~155 °, and angle β preferably is 90 °.Sleeve with it is interior
When sight glass is assembled, the first protuberance 31 interacts with endoscope outer wall 13;When prominent element 3 is tending to 0 ° of position, second
Protuberance points to endoscope rear end 11 to the end 36 extended outside cylindrical body;When prominent element 3 is 90 ° of positions, second
The vertical sleeve axis 4 of protuberance 32;When prominent element 3 is tending to 180 ° of positions, the second protuberance is to outside cylindrical body
Point to endoscope distal end 12 in the end 36 of extension.Second protuberance is also set on the end wall of the end 36 extended outside cylindrical body
There are several projections 37 or depression, for increasing the second protuberance and the friction of body/organ-/ tissue cavity wall (abbreviation cavity wall),
The projection 37 is shaped as salient point, fin or burr etc., and concave shape is pit, groove or dimpled grain etc..Cylindrical body 2 is located at interior peep
The opening of mirror front end 12 sets camber closing in type structure 25 so that the opening and the outer wall of endoscope distal end 12 are brought into close contact.
First protuberance 31 have with endoscope outer wall 13 act on the first corner side wall 31 and with the first corner side
The second opposite corner side wall 35 of wall 31.When sleeve is set on endoscope 1, the corner sidewall 34 of endoscope outer wall 13 and first is made
Used time so that prominent element 3 is rotated, the second protuberance points to endoscope rear end 11 to the end 36 extended outside cylindrical body,
That is the second protuberance 32 and the angle β of sleeve axis 4 are 0 °~85 °;Preferably 5 °~85 °, the second corner side wall 35 and cylinder
Shape body outer wall 21 tends in same curved surface.
When sleeve is not set on endoscope 1, the angle β of the second protuberance 32 and sleeve axis 4 can for 25 °~
155 °, angle β preferably is 90 °.
As shown in Fig. 1,10 and 11, several barrels of connecting hole 23 along cylindrical body 1 are provided at circumferentially spaced;The connection
Set-up mode of the hole on barrel is arranged circumferentially such as the institutes of Figure 10 and 11 for several connecting holes 23 in many floor shapes along barrel
Show or several connecting holes 23 are in that single floor shape is arranged circumferentially along barrel.It is located at adjacent two on cylindrical body inwall 22
Convex tendon 24 is provided between unit connecting hole 23, and the convex tendon 24 be arranged in parallel with sleeve axis 4.Several connecting holes 23
Can in alternating expression along barrel circumferentially.
A kind of endoscope sleeve example as Figure 1-5, cylindrical body 2 is arranged on cylindrical body 2 with several
On protrusion element 3, the angle α of the first protuberance 31 and the second protuberance 32 is 125 °, the second protuberance 32 in prominent element 3
Angle β with sleeve axis is 90 °, when sleeve as shown in Figure 6 is assembled with endoscope, the first protuberance 31 and endoscope outer wall
13 interactions so that prominent element 3 is rotated, the second protuberance is pointed to after endoscope to the end 36 extended outside cylindrical body
The angle β at end 11, i.e. the second protuberance 32 and sleeve axis 4 is 50 °~60 °;Outside second corner side wall 35 and cylindrical body
Wall 21 tends in same curved surface.As shown in figure 8, the endoscope sleeve after assembling enters rank in body/organ-/ tissue chamber 5
Duan Shi, it and is soft material along inserting (along stubble) shape to be in due to the second protuberance 32 in prominent element 3, the second protuberance 32 to
Endoscope rear end is pointed in the end 36 of extension outside cylindrical body so that the second protuberance 32 has laminating cylindrical body outer wall
Trend, such as the chamber footpath of more narrow and small body/organ-/ tissue chamber 5, the second protuberance 32 can be absorbed in by convex tendon 24 formed it is recessed
In the portion of falling into, therefore endoscope sleeve external diameter can be farthest reduced, so as to reduce resistance, really realize that patient is unpainful
Purpose.As shown in figure 9, when the end check stage in body/organ-/ tissue chamber 5 of the endoscope sleeve after the assembling, it is prominent
The second protuberance 32 in element 3 is in opening type structure in the presence of cavity wall;While the first protuberance 31 and endoscope outer wall
Interaction so that the second protuberance 32 has enough support forces to support the cavity wall of body/organ-/ tissue chamber, to endoscope
Front end forms sufficiently large space so that endoscopic visual becomes apparent from.