CN106361388A - Endoscope sheath probe tube and manufacturing method thereof - Google Patents
Endoscope sheath probe tube and manufacturing method thereof Download PDFInfo
- Publication number
- CN106361388A CN106361388A CN201610950769.9A CN201610950769A CN106361388A CN 106361388 A CN106361388 A CN 106361388A CN 201610950769 A CN201610950769 A CN 201610950769A CN 106361388 A CN106361388 A CN 106361388A
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- Prior art keywords
- pipe
- inserting tube
- straight
- probe
- tube
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Classifications
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- 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
- A61B17/00234—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
- A61B2017/0034—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery mounted on or guided by flexible, e.g. catheter-like, means adapted to be inserted through a working channel of an endoscope
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00526—Methods of manufacturing
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00831—Material properties
Abstract
The invention discloses an endoscope sheath probe tube and a manufacturing method thereof. The endoscope sheath probe tube comprises a probe tube, a probe, a thick tube, a thin tube and a four-way valve. The probe tube is a straight tube and comprises two straight through round tubes. The probe is a straight tube and comprises two straight through round tubes, wherein the front end of one straight through round tube is provided with a transparent window. The thick tube and the thin tube are installed in the straight through round tubes of both the probe tube and the probe respectively. An oblong hole-shaped through hole is formed between the upper end and the lower end of the four-way valve, the left end and the right end of the four-way valve are provided with through holes, and the through holes are communicated with one end of the oblong hole. One end of the thin tube is installed in the oblong hole of the four-way valve close to the left through hole and the right through hole. The thick tube and the thin tube are made of stainless steel or carbon fiber. A steel pipe made of stainless steel is placed in the probe tube, the problem that an injection molding process cannot make the inner wall straight and smooth or other processes are high in cost is solved, the rigidity and strength of the probe tube can be remarkably improved, it is guaranteed that the probe tube does not bend or deform easily when inserted into the human body, and the probe tube does not drop in the operation process.
Description
Technical field
The present invention relates to endoscope sheath, the inserting tube that particularly a kind of intensity is high, rigidity is big.
Background technology
For the endoscope used by urinary system and operation on bladder, typically belong to precision instrument, cost is high, maintain and clear
Clean costly, and excessively frequent cleans can shorten the service life of instrument itself.All using disposable mirror sheath in actual operation
Insertion human body, make endoscope not with direct body contact, it is to avoid endoscope is contaminated by bacterial, operation terminate after, can discard once
Property mirror sheath, only need to simple to endoscope clean.
The inserting tube of mirror sheath is used for inserting in human body, and can its rigidity and intensity determine mirror sheath in operation process quick insertion
Human body, that is, determine the efficiency of operation.Patent cn102283684b discloses a kind of dual-channel endoscope sheath, and its inserting tube comprises
Two through holes, respectively instrument channel and endoscope path way, this inserting tube is it cannot be guaranteed that the rigidity of itself and intensity are it is impossible to ensure
In operation, inserting tube does not bend, and there is potential safety hazard.
Content of the invention
It is an object of the invention to provide a kind of endoscope sheath inserting tube, solve inserting tube rigidity and low intensity, flexible
Problem.
For achieving the above object, the invention discloses a kind of endoscope sheath inserting tube, comprising: inserting tube, probe, extra heavy pipe, thin
Pipe and four-way；
Described inserting tube is straight tube, including two straight-through pipes；Described pop one's head in as straight tube, including two straight-through pipes, wherein
One straight-through pipe front end arranges transparent window；Described extra heavy pipe and tubule are respectively arranged in inserting tube and the straight-through pipe of probe；
There is slotted hole shape through hole, all there are through hole, and the one end with slotted hole in left and right two ends between described four-way upper and lower ends
It is connected；
Described tubule one end is installed on the oval in the hole near left and right through hole for the four-way；
Described extra heavy pipe and tubule material are rustless steel or carbon fiber.
Further, described inserting tube is elongated cylindrical straight tube, and cross section is Long Circle or Pear-Shaped, including an interior diameter
Two straight-through pipes big and that an interior diameter is little, two straight-through pipes do not connect.
Further, described pop one's head in as elongated cylindrical straight tube, two straight including an interior diameter is big and interior diameter is little
Logical pipe, the big straight-through pipe front end of diameter tilts 60 °, and is provided with transparent window at inclination, and termination is arc transition
Round end.
Further, the big pipe length of the little pipe length diameter group of the diameter of described probe is short, and termination tilts
60°.
Further, described extra heavy pipe is installed in the big pipe of described inserting tube diameter, and described tubule is installed on described inserting tube
In the little pipe of diameter.
Further, described extra heavy pipe one end is inserted in the big pipe of described probe diameter, and other end insertion threeway first is even
Connect in the first paragraph of end shoulder hole.
Further, the long round tube hole of four-way is fixed in described tubule one end, is connected with the through hole at two ends about four-way,
The other end inserts in the little pipe of described probe diameter.
Further, described extra heavy pipe is connected for interference fit with the second connection end of threeway.
Further, the outer surface of described extra heavy pipe is printed with no less than 1 ribbon metal ring.
Especially, a kind of method manufacturing described endoscope sheath inserting tube, manufacture process includes:
1) plastic phase
Drying process raw material be added to after barrel by extruder hopper, barrel temperature and screw rod rotation, compacting and
In the presence of mixing, the improving uniformity of melt with certain fluidity is changed into by the granule or powder of solid-state；
2) the extrusion molding stage
Homogenous plasticized plastic melt moves to barrel front end with the rotation of screw rod, under the rotary squeezing of screw rod acts on,
The section bar consistent with Oral incision is obtained after prefabricated mouth mould；
3) sizing cooling stage
After plastic leaves machine head port mould, first pass through shaping equipment and chiller so as to cooling down hardening and shaping, cooling
Typically adopt air cooling or water cooling；
4) traction of plastic
Plastic, after die extrusion, typically can expand phenomenon because of the contact of pressure, and can produce receipts after cooling down
Contracting phenomenon, makes the shape and size of plastic change, and therefore, while cooling, continuously and uniformly will draw plastic；
5) cutting of plastic
It is positioned on lathe by the plastic of traction and is cut, process boss, groove, simultaneously by the spy of mirror sheath front end
Pipe is cut open with probe, and the hole of valve is installed in processing；
6) assembling of plastic
Lock-screw is screwed in the boss of tailstock, lock cap is installed on the step of lock, and valve is installed on four-way；Slightly
Pipe one end is inserted in the big pipe of probe diameter, and gluing is fixed, and the other end stretches into the first connection end of threeway；Tubule insertion is visited
Pipe, enters four-way；Finally flexible rubber ring is installed, will latch and tailstock elastic connection.
The invention provides a kind of endoscope sheath inserting tube, the steel pipe of stainless steel is placed in inserting tube, solves injection
Technique cannot realize the problem that inwall is straight smooth or other technique cost is high, can dramatically increase the rigidity of inserting tube and strong simultaneously
Degree is it is ensured that inserting tube is difficult flexural deformation during insertion human body, and will not fall off in operation process.
Brief description
Accompanying drawing is only used for illustrating the purpose of specific embodiment, and is not considered as limitation of the present invention, in whole accompanying drawing
In, identical reference markss represent identical part.
Fig. 1 is overall structure diagram of the present invention；
Fig. 2 is the partial enlarged drawing of a in overall structure of the present invention；
Fig. 3 is buckle structure figure of the present invention；
Fig. 4 is tailstock structure figure of the present invention；
Fig. 5 is three-port structure figure of the present invention；
Fig. 6 is four-way structure chart of the present invention；
Fig. 7 is inserting tube of the present invention and probe scheme of installation；
Fig. 8 is sonde configuration figure of the present invention.
In figure label: 11- lock, 12- tailstock, 13- threeway, 14- four-way, 15- lock-screw, 16- valve, 17- inserting tube,
18- probe, 19- extra heavy pipe, 20- tubule, 21- lock cap；
131- first connection end, 132- second connection end, 133- the 3rd connection end.
Specific embodiment
The present invention is further detailed explanation with reference to the accompanying drawings and detailed description.
The invention discloses a kind of endoscope forced locking device, as shown in Figure 1, comprising: lock 11, tailstock 12, threeway
13rd, four-way 14, lock-screw 15, valve 16, inserting tube 17, probe 18, extra heavy pipe 19, tubule 20 and lock cap 21.
Lock 11 is installed on tailstock 12, and tailstock 12 is connected with the first connection end 131 of threeway 13, and the second of threeway 13 connects
Connecing end 132 is apparatus entrance, and the 3rd connection end 133 of threeway 13 is connected with a connection end of four-way 14, the one of inserting tube 17
End is connected with another connection end of four-way 14, and probe 18 is connected with the other end of inserting tube 17.
Locking device is snap ring-type, passes through flexible rubber ring elastic connection on tailstock 12 by lock 11.
As shown in figure 3, lock 11 is cuboid laminated structure, one end is the step of arc transition, and step is installed lock
Cap 21, for pressing lock, is easy to operate, the other end is circular arc, and slotted hole, as centre bore are opened in center.Arc end has convex
Rise, projection has the groove installing flexible rubber ring, the raised shape being in circular arc, circular shape and tailstock 12 being installed at lock 11
Shape matches, and is easily installed on tailstock 12.Identical with the radius of endoscope near the radius of arc end centre bore, both can be right
Endoscope fastens, again will not be to the surface tear of endoscope, and centre bore other end radius is more than the radius of endoscope, is easy to pacify
Dress.
As described in Figure 4, tailstock 12 is the infundibulate having centre bore, and including top and cervical region, installation is arranged at tailstock 12 top
The groove of lock 11 and the groove installing flexible rubber ring.Groove both sides are closed, and prevent from latching opening in 11 centre bores and tailstock 12
Hole does not correspond to, and both ends open is so that lock 11 can move back and forth in groove along slotted hole.Centre bore top is to install endoscope
Joint, joint internal openings, opening diameter be more than endoscope diameter, be easily installed.
Lock 11 is installed in the groove of tailstock 12 by centre bore, and reciprocable, and flexible rubber ring is arranged on lock
In the groove of the groove of button 11 and tailstock 12,11 and tailstock 12 elastic connection will be latched.Under normality, because flexible rubber ring has bullet
Property, latch 11 step end offset from bore center, lock 11 centre bores overlap with endoscope's radius identical one end, centre bore another
End blocked by the termination of tailstock 12, when pressing lock 11 step end when, lock 11 centre bores be more than endoscope's radius one end with
The joint of tailstock 12 overlaps, and the lock 11 centre bore other ends are blocked by termination, now can install endoscope.
Install endoscope when, pressing lock 11 step end so that lock 11 on tailstock 12 joint radius identical in
Heart hole is overlapped with the perforate of tailstock 12 tip side, and endoscope's insertion lock 11 and tailstock 12 unclamp the step end of lock 11, by
Elastic in flexible rubber ring, then lock 11 reset, oval nose end blocks endoscope with endoscope radius identical, and endoscope is solid
Fixed.
Tailstock 12 passes through keyway with one end of threeway 13 and lock-screw 15 is fixedly connected.
As shown in figure 4, the cervical region of tailstock 12 contains the direct tube section of ladder for outer wall, the logical of threeway 13 can be easily inserted into
Kong Zhong.Direct tube section outside wall surface has key shaped projection, and projection has rectangular channel, and rectangular channel is used for installation locking screw.As shown in figure 5,
Threeway 13 has three interface end, and the first connection end 131 is connected with tailstock 12.This end is internal two-part shoulder hole, outside wall surface has
The direct tube section of square boss, the first paragraph of shoulder hole is the endoporus with keyway, the key shaped projection Matching installation of keyway and tailstock.Rank
The second segment interior diameter in terraced hole is less than the interior diameter of first paragraph.Square boss is located on the corresponding outer wall of keyway, in square boss
There is tapped through hole centre, and through hole is opened to the inner surface of keyway, for installation locking screw.
The direct tube section of tailstock 12 inserts the first paragraph shoulder hole of threeway 13, and keyway is coordinated with key shaped projection gap, can facilitate
Dismounting.Lock-screw 15 is passed through the tapped through hole of threeway 13 boss, and screw in the rectangular channel of tailstock 12 and tighten, then by tailstock 12
It is fixed in threeway 13.The rectangular channel of tailstock 12 is strip, all can fix lock-screw 15 in any position of rectangular channel.When
When the position of tailstock 12 need to change, unscrew lock-screw 15, after mobile tailstock 12 to the position needing, again tighten lock-screw
15.So, all do not have under big change conditions in tailstock 12 and threeway 13 specification, lock-screw 15 can be changed as needed in square
Position in shape groove, and then convert the position of tailstock 12.This variation by a small margin, can provide greatly side for practical operation
Just.
As shown in figure 5, second connection end 132 of threeway 13 tilts 12 °, the utensil such as shears performed the operation for insertion.Three
Logical 13 the 3rd connection end 133 is directly connected with the first connection end 131, with diameter greater than the second-order bench of the first connection end 131.
3rd connection end 133 of threeway 13 connects four-way 14 top, and the left and right two ends of four-way 14 connect water inlet pipe and outlet pipe respectively, leads to
Crossing four-way 14 left end makes the water in water inlet pipe enter human body, is discharged by the water that four-way 14 right-hand member makes one internal pollution, four-way 14
Left and right two ends have through hole for installing valve 16 respectively, for the break-make of control piper.The bottom of four-way 14 connects inserting tube
17 one end, the other end of inserting tube 17 connects probe 18.
As described in Figure 6, have slotted hole shape through hole between four-way 14 upper and lower ends, all there is through hole at left and right two ends, and with oval
The one end in hole is connected.
As shown in fig. 7, inserting tube 17 is elongated cylindrical straight tube, cross section is Long Circle, including the big diameter of diameter
The straight-through pipe of little two, two straight-through pipes do not connect.
Probe 18 is elongated cylindrical straight tube, include the big diameter of diameter little two lead directly to pipes, big straight of diameter
Logical pipe front end tilts 60 °, and is provided with transparent window at inclination, and the pipe big to diameter is closed, and simultaneously facilitates endoscope and sees
Examine, and termination be the round end of arc transition so that mirror sheath easily can insert human body, and do not result in scuffing etc..Diameter is little
The big pipe length of pipe length diameter group short, and termination tilts 60 °.
Install in the big pipe of inserting tube 17 diameter in extra heavy pipe 19, the little pipe of diameter and tubule 20, extra heavy pipe 19 one end warp are installed
In the big pipe of inserting tube 17 insertion probe 18 diameters, and it is fixedly connected with probe, the long round tube hole insertion through four-way 14 for the other end
In the shoulder hole first paragraph of threeway 13 first connection end 131, the interior diameter of shoulder hole second segment is less than the overall diameter of extra heavy pipe 19, because
But interference fit connects so that probe 18 is fixed on inserting tube 17 by extra heavy pipe 19.Four-way 14 is oval near left and right through hole
In the hole installs tubule 20, and tubule 20 is connected with left and right through hole, and the slotted hole other end installs extra heavy pipe 19.Tubule 20 is installed on spy
In the little pipe of pipe diameter, the long round tube hole of four-way 14 is fixed in one end, is connected with the through hole at four-way 14 about two ends, another
In end insertion probe 18.
Extra heavy pipe 19 one end is fixed in the big pipe of probe 18 diameters, and inserting tube 18, four-way 14 are gap with extra heavy pipe 19 and join
Close so that extra heavy pipe 19 can easily be extracted out from pipe, the second connection end 131 of extra heavy pipe 19 and threeway 13 is joined for interference
Close so that extra heavy pipe 19 during using will not Automatic-falling, the outer surface of extra heavy pipe 19 is printed with several strip metal annulus,
For increasing the frictional force of extra heavy pipe 19 and inserting tube 17 inwall, during preventing from extracting extra heavy pipe 19 out, extra heavy pipe 19 comes off.
Endoscope sheath is generally integral extrusion molding, it is impossible to ensure the light of inserting tube 17 inner surface during manufacturing
Cleanliness, if being processed further inner surface, technique cost is high, and the material of extra heavy pipe 19 and tubule 20 is rustless steel it is ensured that
It is smooth that inwall is straight, and has the characteristics that intensity is high, rigidity is big, is installed in inserting tube, can dramatically increase inserting tube rigidity and
Intensity is it is ensured that inserting tube is difficult flexural deformation during insertion human body and difficult for drop-off in operation process.
Based on above structure, by thin in the little pipe of the second connection end 132 of threeway 13, four-way 14, inserting tube 17 diameter
Pipe 20 and probe 18 constitute instrument channel, are operated in human body in operation process transporting apparatus；By lock 11,
Tailstock 12, the first connection end 131 of threeway 13 and extra heavy pipe 19 constitute sight glass passage, for sight glass is transported to portion to be seen
Position.
Due to 18 ends of popping one's head in have transparent window so that sight glass with or not human body or any liquid contacts it is ensured that sight glass
Cleaning.By the valve 16 on four-way 14, outside water can be entered human body through instrument channel, then pass through instrument channel warp
The water polluting is discharged by valve 16.
During use, first mirror sheath is inserted human body, back with water inlet line and water outlet pipeline is respectively connecting to the left and right end of four-way 14,
Close the valve 16 that water outlet pipeline connects, open the valve 16 of back with water inlet line connection, water enters human body by instrument channel, then
Close the valve 16 that back with water inlet line connects, open the valve 16 of water outlet pipeline connection, the water of pollution is discharged.On pressing lock 11
Lock cap 21 so that lock 11 on overlap with the perforate of tailstock 12 tip side with tailstock 12 joint radius identical centre bore,
By in endoscope's termination insertion extra heavy pipe 19, observed using transparent window, unclamped the step end of lock 11, using flexible rubber ring
Elasticity so that lock 11 is resetted, oval pipe end blocks endoscope with endoscope radius identical, and endoscope is fixed.By hospital scissors
Second connection end 132 through threeway 13 for the apparatuses such as knife enters four-way 14 and tubule 20, is operated through probe 18 entrance human body.
Operation terminate after, pressing lock 11 step end so that lock 11 on tailstock 12 joint radius identical center
Hole is overlapped with the perforate of tailstock 12 tip side, takes out endoscope, removal equipment simultaneously, mirror sheath is taken out human body, due to endoscope
It is not in contact with human body or other liquid, thus only endoscope simply need to be sterilized and can be used for next operation, convenient and swift.
Preferably, this apparatus main body part material is Bayer Bitterfeld GmbH pc2458, and lock-screw 15, extra heavy pipe 19 and tubule 20 are
Rustless steel, is outsourcing finished parts, and lock cap 21 and valve 16 are pe, are outsourcing finished parts, adopt extrusion technology during manufacture,
Concrete manufacture process is:
1) plastic phase
Drying process raw material be added to after barrel by extruder hopper, barrel temperature and screw rod rotation, compacting and
In the presence of mixing, the improving uniformity of melt with certain fluidity is changed into by the granule or powder of solid-state, this process becomes
Plasticizing.
2) the extrusion molding stage
Homogenous plasticized plastic melt moves to barrel front end with the rotation of screw rod, under the rotary squeezing of screw rod acts on,
The section bar consistent with Oral incision is obtained after prefabricated mouth mould.
3) sizing cooling stage
After plastic leaves machine head port mould, first pass through shaping equipment and chiller so as to cooling down hardening and shaping.Big
In most cases, shape and cooling is carried out simultaneously, cooling typically adopts air cooling or water cooling.
4) traction of plastic
Plastic, after die extrusion, typically can expand phenomenon because of the contact of pressure, and can produce receipts after cooling down
Contracting phenomenon, makes the shape and size of plastic change.If not guided, will result in plastic and stagnating, making the plastic can not
Smoothly extrude.Therefore, while cooling, continuously and uniformly plastic be drawn, here it is traction.
5) cutting of plastic
It is positioned on lathe by the plastic of traction and is cut, process boss, groove of this device etc., simultaneously by mirror
The inserting tube 17 of sheath front end is cut open with probe 18, and the hole of valve 16 is installed in processing.
6) assembling of plastic
After the completion of plastic is manufactured, assembled.Lock-screw 15 is screwed in the boss of tailstock 12, lock cap 21 is installed on
On the step of lock 11, valve 16 is installed on four-way 14；In the big pipe of extra heavy pipe 19 one end insertion probe 17 diameters, and gluing
Fixing, the other end stretches into the first connection end 131 of threeway 13；Tubule 20 inserts inserting tube, enters four-way 14；Elastic gum is finally installed
Circle, will latch 11 and tailstock 12 elastic connection.
In sum, the invention provides a kind of endoscope sheath inserting tube, the steel pipe of stainless steel is placed in inserting tube,
Solve the problems, such as that Shooting Technique cannot realize that inwall is straight smooth or other technique cost is high, can dramatically increase the firm of inserting tube simultaneously
Degree and intensity are it is ensured that inserting tube is difficult flexural deformation during insertion human body, and will not fall off in operation process.
Although being described in detail to the present invention already in connection with preferred embodiment, those skilled in the art should
When be understood by without prejudice to the present invention spirit and essence in the case of, various corrections are all allowed, and they both fall within this
Among bright scope of the claims.
Claims (10)
1. a kind of endoscope sheath inserting tube is it is characterised in that include: inserting tube, probe, extra heavy pipe, tubule and four-way；
Described inserting tube is straight tube, including two straight-through pipes；Described pop one's head in as straight tube, including two straight-through pipes, one of
Straight-through pipe front end arranges transparent window；Described extra heavy pipe and tubule are respectively arranged in inserting tube and the straight-through pipe of probe；
There is slotted hole shape through hole, all there is through hole at left and right two ends, and are connected with one end of slotted hole between described four-way upper and lower ends
Logical；
Described tubule one end is installed on the oval in the hole near left and right through hole for the four-way；
Described extra heavy pipe and tubule material are rustless steel or carbon fiber.
2. a kind of endoscope sheath inserting tube according to claim 1 is it is characterised in that described inserting tube is that elongated cylindrical is straight
Pipe, cross section is Long Circle or Pear-Shaped, including the two straight-through pipes that an interior diameter is big and an interior diameter is little, two straight-through circles
Manage and do not connect.
3. a kind of endoscope sheath inserting tube according to claim 2 is it is characterised in that described probe is that elongated cylindrical is straight
Pipe, including the two straight-through pipes that an interior diameter is big and an interior diameter is little, the big straight-through pipe front end of diameter tilts 60 °, and
It is provided with transparent window at inclination, and termination is the round end of arc transition.
4. a kind of endoscope sheath inserting tube according to claim 3 is it is characterised in that the little pipe of the diameter of described probe
The big pipe length of length diameter group is short, and termination tilts 60 °.
5. a kind of endoscope sheath inserting tube according to claim 4 is it is characterised in that described extra heavy pipe is installed on described inserting tube
In the big pipe of diameter, described tubule is installed in the little pipe of described inserting tube diameter.
6. a kind of endoscope sheath inserting tube according to claim 5 is it is characterised in that described spy is inserted in described extra heavy pipe one end
In the big pipe of head diameter, the other end inserts in the first paragraph of threeway the first connection end shoulder hole.
7. a kind of endoscope sheath inserting tube according to claim 6 is it is characterised in that four-way is fixed in described tubule one end
Long round tube hole, be connected with the through hole at two ends about four-way, the other end inserts in the little pipe of described probe diameter.
8. a kind of endoscope sheath inserting tube according to claim 7 is it is characterised in that described extra heavy pipe connects with the second of threeway
Connect end to connect for interference fit.
9. a kind of endoscope sheath inserting tube according to claim 8 is it is characterised in that the outer surface of described extra heavy pipe is printed with
No less than 1 ribbon metal ring.
10. a kind of method of the endoscope sheath inserting tube described in manufacturing claims 1-9 is it is characterised in that manufacture process includes:
1) plastic phase
The raw material that drying is processed is added to after barrel by extruder hopper, in barrel temperature and screw rod rotation, compacting and mixing
In the presence of, the improving uniformity of melt with certain fluidity is changed into by the granule or powder of solid-state；
2) the extrusion molding stage
Homogenous plasticized plastic melt moves to barrel front end with the rotation of screw rod, under the rotary squeezing of screw rod acts on, passes through
The section bar consistent with Oral incision is obtained after prefabricated mouth mould；
3) sizing cooling stage
After plastic leaves machine head port mould, first pass through shaping equipment and chiller so as to cooling down hardening and shape, cooling being general
Using air cooling or water cooling；
4) traction of plastic
Plastic, after die extrusion, typically can expand phenomenon because of the contact of pressure, and it is existing to produce contraction after cooling down
As making the shape and size of plastic change, therefore, while cooling, continuously and uniformly will draw plastic；
5) cutting of plastic
Be positioned on lathe and cut by the plastic of traction, process boss, groove, simultaneously by the inserting tube of mirror sheath front end with
Probe is cut open, and the hole of valve is installed in processing；
6) assembling of plastic
Lock-screw is screwed in the boss of tailstock, lock cap is installed on the step of lock, and valve is installed on four-way；Extra heavy pipe one
In the big pipe of end insertion probe diameter, and gluing is fixed, and the other end stretches into the first connection end of threeway；Tubule inserts inserting tube,
Enter four-way；Finally flexible rubber ring is installed, will latch and tailstock elastic connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610950769.9A CN106361388A (en) | 2016-11-02 | 2016-11-02 | Endoscope sheath probe tube and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610950769.9A CN106361388A (en) | 2016-11-02 | 2016-11-02 | Endoscope sheath probe tube and manufacturing method thereof |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610950769.9A Pending CN106361388A (en) | 2016-11-02 | 2016-11-02 | Endoscope sheath probe tube and manufacturing method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018082301A1 (en) * | 2016-11-02 | 2018-05-11 | 张立军 | Automatic locking mechanism for endoscope |
| WO2018082303A1 (en) * | 2016-11-02 | 2018-05-11 | 张立军 | Adjustable endoscope fixation device |
| CN109691968A (en) * | 2019-02-25 | 2019-04-30 | 上海宇度医学科技股份有限公司 | The insertion end and hard uterine cavity fujinon electronic video endoscope of hard uterine cavity fujinon electronic video endoscope |
| CN113183435A (en) * | 2021-03-12 | 2021-07-30 | 东莞市彩炫光电科技有限公司 | Medical conjoined casing wire rod without tearing mark and preparation method thereof |
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| WO2018082301A1 (en) * | 2016-11-02 | 2018-05-11 | 张立军 | Automatic locking mechanism for endoscope |
| WO2018082303A1 (en) * | 2016-11-02 | 2018-05-11 | 张立军 | Adjustable endoscope fixation device |
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Application publication date: 20170201 |