CN107898486A - Ureter sheath and its head end cap - Google Patents
Ureter sheath and its head end cap Download PDFInfo
- Publication number
- CN107898486A CN107898486A CN201711086969.5A CN201711086969A CN107898486A CN 107898486 A CN107898486 A CN 107898486A CN 201711086969 A CN201711086969 A CN 201711086969A CN 107898486 A CN107898486 A CN 107898486A
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- China
- Prior art keywords
- vacuum suction
- head end
- end cap
- path
- passage
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- 210000000626 ureter Anatomy 0.000 title claims abstract description 27
- 238000009434 installation Methods 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 40
- 239000010959 steel Substances 0.000 claims description 39
- 208000006568 Urinary Bladder Calculi Diseases 0.000 claims description 20
- 125000006850 spacer group Chemical group 0.000 claims description 18
- 238000005452 bending Methods 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 239000000835 fiber Substances 0.000 description 4
- 230000002485 urinary effect Effects 0.000 description 4
- 210000003708 urethra Anatomy 0.000 description 3
- 208000005392 Spasm Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 210000004197 pelvis Anatomy 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 241000463219 Epitheca Species 0.000 description 1
- 229910052689 Holmium Inorganic materials 0.000 description 1
- 208000007101 Muscle Cramp Diseases 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- KJZYNXUDTRRSPN-UHFFFAOYSA-N holmium atom Chemical compound [Ho] KJZYNXUDTRRSPN-UHFFFAOYSA-N 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000001575 pathological effect Effects 0.000 description 1
- 210000002097 psoas muscle Anatomy 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 210000001635 urinary tract Anatomy 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/20—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser
- A61B18/22—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor
- A61B18/26—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser the beam being directed along or through a flexible conduit, e.g. an optical fibre; Couplings or hand-pieces therefor for producing a shock wave, e.g. laser lithotripsy
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22079—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with suction of debris
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Biomedical Technology (AREA)
- Public Health (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Animal Behavior & Ethology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Vascular Medicine (AREA)
- Electromagnetism (AREA)
- Otolaryngology (AREA)
- Surgical Instruments (AREA)
- Endoscopes (AREA)
Abstract
The invention discloses a kind of head end cap, including head end cap body, vacuum suction passage is equipped with the head end cap body, the entrance side of the vacuum suction passage is equipped with the baffle structure for being used for preventing that large-sized calculus rubble from entering in the vacuum suction passage.The invention also discloses a kind of ureter sheath, including work department and operation portion, the work department includes multi-lumen tube, one end of the multi-lumen tube is connected with the operation portion, other end installation is equipped with head end cap as described above, the vacuum suction path being connected with the vacuum suction passage is equipped with the multi-lumen tube, the vacuum suction interface being connected with the vacuum suction path is equipped with the operation portion.The ureter sheath and its head end cap of the present invention, can effectively prevent calculus rubble from blocking pipeline, can effectively improve reliability.
Description
Technical field
The invention belongs to the field of medical instrument technology, is specifically related to a kind of ureter sheath and its head end cap.
Background technology
Renal plevis, lower even bladder are connect on ureter, is a pair of elongated pipeline, in oblate column, caliber average out to 0.5-0.7
Centimetre.25-35 centimetres of adult's ureter total length, after peritonaeum, pelvis is lowered into along the front vertical on the inside of greater psoas muscle.It is defeated
Urinary catheter has three narrows：One is divided a word with a hyphen at the end of a line place in renal plevis and ureter（Ureter section start）, one is being crossed minor pelvis entrance
Place, last is entering the inside of the bladder wall.It is position that calculus, clot and slough easily stop that these are narrow.It is defeated
When urinary catheter soft lens guide sheath is clinically mainly used for ureterostenosis, adhesion, obstruction, obstruction, calculus, related surgical need to be carried out
Carry out treatment to establish used in operation path, endoscope, laser fiber, calculus removing instrument or operation cable etc. are imported by passage.
The Chinese patent of Publication No. CN206403732U discloses a kind of Medical endoscope and attracts sheath, including Medical endoscope and
Attract sheath, described to attract sheath to include negative pressure connector and the sheath that is connected with negative pressure connector, the sheath includes long-armed pipe and short
Arm pipe, the long-armed pipe are connect with galianconism pipe by being weldingly connected；The Medical endoscope is by very thin elastic force apparatus with attracting sheath phase
Connection；The long-armed pipe and galianconism length of tube difference are 5-30mm, and the long-armed pipe has flexible head end.The Medical endoscope is inhaled
Although drawing sheath with the blood attracted in surgical field of view, the technique effect of liquid and pathological tissues, when running into calculus rubble
Afterwards, under the action of negative pressure, larger calculus rubble is easily sucked, causes line clogging, and then cause vacuum suction to be failed.
The Chinese patent of Publication No. CN205073357U discloses a kind of vacuum suction sheath guard system, the vacuum suction sheath
Guard system, including vacuum suction sheath and the vacuum suction machine that is connected with vacuum suction sheath, the vacuum suction sheath include
Sheath tube end, the scope input terminal coordinated with scope, the negative pressure connecting pin being connected with vacuum suction machine.Similarly, when negative using this
When pressure attracts sheath cleaned system calculi in vivo rubble, larger calculus rubble easily blocks vacuum suction sheath, causes negative pressure
Attract effect failure.
The Chinese patent of Publication No. CN 201782744U discloses to be peeped in a kind of soft or hard matter combined type bendable steering
Mirror, its working portion include conduit and control the steering tiller of guiding-tube bend, its conduit portion includes hard tube and hose, hard tube set
Outside hose, steering tiller control hose bending.In Clinical practice, its conduit portion enters human body urinary tract, afterwards by hand
Handle operates hose bending, completes to check or treats.The soft or hard matter combined type bendable steering endoscope of the utility model, although behaviour
Make simply, it is easy to use, and can have a better effect, but still suffer from following deficiencies：
The hard tube of its conduit portion is usually made of stainless steel, and when entering human body, the hard tube of metal material can increase patient
Sense of discomfort, or even cause patient muscle's spasm, so as to hold conduit tightly, it is allowed to smoothly enter urinary catheter.Meanwhile using hard tube set
Form outside hose, adds the diameter of conduit entirety so that trouble of the conduit in insertion children's urethra or ureterostenosis
During person, the resistance being subject to is big, it is easier to causes the spasm of patient muscle, or the urethra of patient is caused necessarily to injure.
When in use, the part of flexible pipe extending hard tube is bent under the operation of handle, since conduit is in insertion urinary catheter
When operating personnel can't see inside situation, in the case of misoperation, if the length of flexible pipe extending hard tube it is shorter and in hand
When bending is forced under the control of handle, it is easy to which the optical fiber to fracture because bending radius is too small in hose, causes endoscope to damage.
It is respectively that instrument channel, steel wire passage and image lead to meanwhile the inner working channel of existing hose is usually three
Road, image channel the inside are additionally provided with lighting fiber, and damage optical image fibers are easy to when long-time uses, reduce optical image fibers
Service life.In addition, in hose bending, the plane where plane and hose where the axial line of its steel wire passage has a clamp
Angle, so that the bending operation of hose is dumb, accurate.
Similarly, a kind of end with telescopic epitheca disclosed in the Chinese patent of 203408026 U of Publication No. CN
Bending type ureteroscope, although to a kind of improvement project of aforementioned patent CN 201782744U, due to its conduit
The same mode for employing soft or hard sheath and combining, therefore inevitably there is also above-mentioned deficiency.
The content of the invention
In view of this, it is an object of the invention to provide a kind of ureter sheath and its head end cap, calculus can be effectively prevented
Rubble blocks pipeline, can effectively improve reliability.
To reach above-mentioned purpose, the present invention provides following technical solution：
Present invention firstly provides a kind of head end cap, including head end cap body, lead in the head end cap body equipped with vacuum suction
Road, the entrance side of the vacuum suction passage, which is equipped with, to be used to prevent large-sized calculus rubble from entering the vacuum suction passage
Interior baffle structure.
Further, the center of the vacuum suction passage is equipped with the Bladder stone passage being coaxial therewith.
Further, the baffle structure for be arranged on the vacuum suction vias inner walls and the Bladder stone channel outer wall it
Between spacer bar I.
Further, the spacer bar I is located at the radial direction of the vacuum suction passage, and the annular of the spacer bar I is
Cloth is arranged at least two.
Further, the baffle structure is the spacer bar II being arranged in the vacuum suction passage.
Further, the spacer bar II is located at the radial direction of the vacuum suction passage, and the annular of the spacer bar II
Be uniformly arranged is at least two.
Further, the head end cap body is made of SUS304 materials.
Further, image channel, steel wire passage and waterflood path are additionally provided with the head end cap body.
The invention also provides a kind of ureter sheath, including work department and operation portion, the work department includes multi-lumen tube, institute
The one end for stating multi-lumen tube is connected with the operation portion, other end installation is equipped with head end cap as described above, is set in the multi-lumen tube
There is the vacuum suction path being connected with the vacuum suction passage, be equipped with and the vacuum suction path phase in the operation portion
The vacuum suction interface of connection.
Further, the center of the vacuum suction passage is equipped with the Bladder stone passage being coaxial therewith, and the vacuum suction is led to
The center on road is equipped with the Bladder stone path being connected with the Bladder stone passage, is equipped with the operation portion and leads to the Bladder stone
The Bladder stone interface that road is connected.
Further, image channel is additionally provided with the head end cap body, is equipped with and described image passage in the multi-lumen tube
The image path being connected, the operation portion is interior to be equipped with the image interface being connected with described image path.
Further, waterflood path is additionally provided with the head end cap body, is equipped with and the waterflood path in the multi-lumen tube
The water filling path being connected, the operation portion is interior to be equipped with the water injection interface being connected with the water filling path.
Further, the outside diameter of the multi-lumen tube is 13F, and the maximum outside diameter of the head end cap is less than or equal to 14F.
Further, steel wire passage is additionally provided with the head end cap body, is equipped with and the steel wire passage in the multi-lumen tube
The steel wire path being connected, interior be equipped with of the operation portion are used to drive the steel wire rope in the steel wire path to stretch and then drive
Move the curved push rod of multi-lumen tube.
Further, on the radial section of the multi-lumen tube, the center of circle of the steel wire path and the vacuum suction path
The center of circle be located at the same of the multi-lumen tube radial section diametrically；And when the multi-lumen tube is bent, the steel wire path
Axis and the axis of the vacuum suction path be always positioned in approximately the same plane.
Further, the multi-lumen tube includes lower flexural deformation bending section used in approaching side section, the stretching in the steel wire rope
The work back segment being connected with the operation portion, the head end cap are installed in the approaching side section.
Further, the length of the bending section is 40-65mm.
Further, the push rod is equipped with self-locking mechanism.
The beneficial effects of the present invention are：
The present invention head end cap, by vacuum suction passage entrance side set baffle structure, can effectively prevent particle diameter compared with
Big calculus rubble is entered in vacuum suction passage, can effectively prevent vacuum suction channel jam, can ensure to bear
Pressure attracts effect not fail, reliability higher.
The ureter sheath of the present invention, by setting the steel wire passage and steel wire path that are connected, using being arranged on operation portion
Interior push rod driving steel wire rope stretches, and effectively multi-lumen tube can be driven to bend, so that entrance can flexibly enter patient's body
Interior target area；Since there is no the hard sheath of outside, turning part is more flexible when carrying out flexure operation, and there is no because of hard sheath
Limitation and the problem of damage multi-lumen tube；
By the way that the center of circle in the center of circle of steel wire path and vacuum suction path to be arranged to the same positioned at multi-lumen tube radial section
Diametrically, it can be ensured that when multi-lumen tube is bent, the axis of steel wire path and the axis of vacuum suction path are always positioned at same
In plane, so that because of the plane where the axial line of steel wire path and vacuum suction passage when overcoming existing multi-lumen tube bending
The plane at place has the problem of malfunction caused by certain angle, not accurate.
Brief description of the drawings
In order to make the purpose of the present invention, technical solution and beneficial effect clearer, the present invention provides drawings described below and carries out
Explanation：
Fig. 1 is the structure diagram of ureter sheath embodiment of the present invention；
Fig. 2 is the structure diagram of the first structure of head end cap；
Fig. 3 is the structure diagram of second of structure of head end cap；
Fig. 4 is the structure diagram of the third structure of head end cap；
Fig. 5 is the structure diagram of the 4th kind of structure of head end cap；
Fig. 6 is the longitudinal section view of multi-lumen tube.
Embodiment
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings, so that those skilled in the art can be with
It is better understood from the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
As shown in Figure 1, the structure diagram for ureter sheath embodiment of the present invention.The ureter sheath of the present embodiment, including
Work department and operation portion 1, work department include multi-lumen tube 2, and one end of multi-lumen tube 2 is connected with operation portion, other end installation is equipped with head
End cap 3.The head end cap 3 of the present embodiment, including head end cap body 4, head end cap body 4 is interior to be equipped with vacuum suction passage 5, and negative pressure is inhaled
The entrance side for drawing passage 5 is equipped with for preventing large-sized calculus rubble from entering the baffle structure in vacuum suction passage.This
The head end cap body 4 of embodiment includes inserting section 6, and multi-lumen tube 2 is equipped with the inserting groove coordinated with inserting section 6, is set in multi-lumen tube 2
There is the vacuum suction path being connected with vacuum suction passage 5, the negative pressure being connected with vacuum suction path is equipped with operation portion 1
Attract interface.
The center of the vacuum suction passage 5 of the present embodiment is equipped with the Bladder stone passage 7 being coaxial therewith, vacuum suction path
Center is equipped with the Bladder stone path 12 being connected with Bladder stone passage 7, and the holmium being connected with Bladder stone path is equipped with operation portion
Laser interface.Image channel 8 is additionally provided with the head end cap body 4 of the present embodiment, is equipped with multi-lumen tube 2 and is connected with image channel 8
Logical image path 13, operation portion is interior to be equipped with the image interface being connected with image path.In the head end cap body 4 of the present embodiment
It is additionally provided with waterflood path 9, the water filling path 14 being connected with waterflood path 9 is equipped with multi-lumen tube 2, is equipped with operation portion and water filling
The water injection interface that path is connected.Be additionally provided with steel wire passage 10 in the head end cap body 4 of the present embodiment, be equipped with multi-lumen tube 2 with
The steel wire path 15 that steel wire passage 10 is connected, be equipped with operation portion be used to drive the steel wire rope in steel wire path stretch into
And the curved push rod of multi-lumen tube is driven, the push rod of the present embodiment is equipped with self-locking mechanism.
Specifically, head end cap 3 and the outer wall of multi-lumen tube 2 are equipped with hydrophilic coating；It is easier head end cap 3 and multi-lumen tube 2
Into human urethra, and patient is set to have preferable experience.The head end cap body 4 of the present embodiment is made of SUS304 materials, and more
The outside diameter of lumen 2 is 13F, and the maximum outside diameter of head end cap 3 is less than or equal to 14F.
Further, baffle structure is the spacer bar I being arranged between vacuum suction vias inner walls and Bladder stone channel outer wall
11, spacer bar I 11 is located at the radial direction of vacuum suction passage 5, and it is at least two that I 11 annular of spacer bar, which is uniformly arranged,.Such as
It is respectively structure diagram when spacer bar I 11 is respectively set to 2,3,4 and 8 shown in Fig. 2-5.By set every
The entrance side of vacuum suction passage is divided into several grid by blend stop, can effectively prevent the larger calculus rubble of particle diameter from entering
Into vacuum suction passage, the calculus rubble that can ensure to enter in vacuum suction passage will not block vacuum suction and lead to
Road.Certainly, in certain embodiments, can not have to set Bladder stone passage in vacuum suction passage 5, at this time, baffle structure is
The spacer bar II being arranged in vacuum suction passage, similarly, spacer bar II are located at the radial direction of vacuum suction passage, and barrier
It is at least two that II annular of bar, which is uniformly arranged, its principle is suitable, no longer tires out one by one and states.
Further, on the radial section of multi-lumen tube 2, the center of circle of steel wire path and the center of circle of vacuum suction path are positioned at more
The same of 2 radial section of lumen is diametrically；And when multi-lumen tube 2 is bent, the axis of steel wire path and vacuum suction path
Axis is always positioned in approximately the same plane, as shown in Figure 6.The multi-lumen tube 2 of the present embodiment includes approaching side section, in steel wire rope
Lower flexural deformation bending section used in stretching and the work back segment being connected with operation portion 1, head end cap 3 are installed in approaching side section.This
The length of the bending section of embodiment is 40-65mm, and radius of turn meets the size of human intracavity's body, and operation is flexibly, conveniently.
The ureter sheath of the present embodiment, by setting the steel wire passage and steel wire path that are connected, is operated using being arranged on
Push rod driving steel wire rope in portion stretches, and effectively multi-lumen tube can be driven to bend, so that entrance can flexibly enter patient
Internal target area；Since there is no the hard sheath of outside, turning part is more flexible when carrying out flexure operation, and there is no because hard
The limitation of sheath and the problem of damage multi-lumen tube；By the way that the center of circle in the center of circle of steel wire path and vacuum suction path is arranged to be located at
The same of multi-lumen tube radial section is diametrically, it can be ensured that when multi-lumen tube is bent, the axis of steel wire path and vacuum suction are led to
The axis on road is always positioned in approximately the same plane, so that because of the axial line institute of steel wire path when overcoming existing multi-lumen tube bending
Plane and vacuum suction passage where plane have the problem of malfunction caused by certain angle, not accurate.
The ureter sheath of the present embodiment, sets baffle structure by the entrance side in vacuum suction passage, can effectively prevent
The larger calculus rubble in tablet footpath is entered in vacuum suction passage, can effectively prevent vacuum suction channel jam, can
Enough ensure that vacuum suction effect will not fail, reliability higher.
Embodiment described above is only to absolutely prove preferred embodiment that is of the invention and being lifted, protection model of the invention
Enclose not limited to this.The equivalent substitute or conversion that those skilled in the art are made on the basis of the present invention, in the present invention
Protection domain within.Protection scope of the present invention is subject to claims.
Claims (18)
- A kind of 1. head end cap, it is characterised in that：Including head end cap body, vacuum suction passage is equipped with the head end cap body, The entrance side of the vacuum suction passage, which is equipped with, to be used to prevent large-sized calculus rubble from entering in the vacuum suction passage Baffle structure.
- 2. head end cap according to claim 1, it is characterised in that：The center of the vacuum suction passage is equipped with and is coaxial therewith Bladder stone passage.
- 3. head end cap according to claim 2, it is characterised in that：The baffle structure leads to be arranged on the vacuum suction Spacer bar I between road inner wall and the Bladder stone channel outer wall.
- 4. head end cap according to claim 3, it is characterised in that：The spacer bar I is located at the vacuum suction passage Radial direction, and it is at least two that I annular of the spacer bar, which is uniformly arranged,.
- 5. head end cap according to claim 1, it is characterised in that：The baffle structure leads to be arranged on the vacuum suction Spacer bar II in road.
- 6. head end cap according to claim 5, it is characterised in that：The spacer bar II is located at the vacuum suction passage Radial direction, and it is at least two that II annular of the spacer bar, which is uniformly arranged,.
- 7. head end cap according to claim 1, it is characterised in that：The head end cap body is made of SUS304 materials.
- 8. according to claim 1-7 any one of them head end caps, it is characterised in that：Image is additionally provided with the head end cap body Passage, steel wire passage and waterflood path.
- A kind of 9. ureter sheath, it is characterised in that：Including work department and operation portion, the work department includes multi-lumen tube, described more One end of lumen is connected with the operation portion, other end installation is equipped with such as claim 1-8 any one of them head end caps, described The vacuum suction path being connected with the vacuum suction passage is equipped with multi-lumen tube, is equipped with and the negative pressure in the operation portion The vacuum suction interface for attracting path to be connected.
- 10. ureter sheath according to claim 9, it is characterised in that：The center of the vacuum suction passage is equipped with and it Coaxial Bladder stone passage, the center of the vacuum suction path are equipped with the Bladder stone being connected with the Bladder stone passage and lead to Road, the operation portion is interior to be equipped with the Bladder stone interface being connected with the Bladder stone path.
- 11. ureter sheath according to claim 10, it is characterised in that：Image is additionally provided with the head end cap body to lead to Road, the image path being connected with described image passage is equipped with the multi-lumen tube, is equipped with the operation portion and described image The image interface that path is connected.
- 12. ureter sheath according to claim 11, it is characterised in that：Water filling is additionally provided with the head end cap body to lead to Road, the water filling path being connected with the waterflood path is equipped with the multi-lumen tube, is equipped with the operation portion and the water filling The water injection interface that path is connected.
- 13. ureter sheath according to claim 9, it is characterised in that：The outside diameter of the multi-lumen tube is 13F, the head end The maximum outside diameter of cap is less than or equal to 14F.
- 14. according to claim 9-13 any one of them ureter sheaths, it is characterised in that：It is additionally provided with the head end cap body Steel wire passage, the multi-lumen tube is interior to be equipped with the steel wire path being connected with the steel wire passage, is equipped with and is used in the operation portion Drive the steel wire rope in the steel wire path to stretch and then drive the curved push rod of the multi-lumen tube.
- 15. ureter sheath according to claim 14, it is characterised in that：It is described on the radial section of the multi-lumen tube The center of circle of steel wire path and the center of circle of the vacuum suction path are located at the same of the multi-lumen tube radial section diametrically；And When the multi-lumen tube is bent, the axis of the axis of the steel wire path and the vacuum suction path is always positioned at same put down On face.
- 16. ureter sheath according to claim 15, it is characterised in that：The multi-lumen tube includes approaching side section, described Lower flexural deformation bending section used in the stretching of steel wire rope and the work back segment being connected with the operation portion, the head end cap are installed on In the approaching side section.
- 17. ureter sheath according to claim 16, it is characterised in that：The length of the bending section is 40-65mm.
- 18. ureter sheath according to claim 14, it is characterised in that：The push rod is equipped with self-locking mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711086969.5A CN107898486A (en) | 2017-11-07 | 2017-11-07 | Ureter sheath and its head end cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711086969.5A CN107898486A (en) | 2017-11-07 | 2017-11-07 | Ureter sheath and its head end cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107898486A true CN107898486A (en) | 2018-04-13 |
Family
ID=61843770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711086969.5A Pending CN107898486A (en) | 2017-11-07 | 2017-11-07 | Ureter sheath and its head end cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107898486A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108542340A (en) * | 2018-04-24 | 2018-09-18 | 海纳阳光（北京）医药控股有限公司 | A kind of nested type Flexible ureteroscope |
| CN109998672A (en) * | 2019-04-30 | 2019-07-12 | 武汉佑康科技有限公司 | A kind of sheath pipe cap and the endoscope guide sheath with sheath pipe cap |
| WO2020220485A1 (en) * | 2019-04-30 | 2020-11-05 | 武汉佑康科技有限公司 | Sheath cap and endoscope introducer sheath with sheath cap |
| CN112545608A (en) * | 2020-12-08 | 2021-03-26 | 昆明市延安医院 | Urinary system intracavity milling type stone breaking device |
| CN113907838A (en) * | 2021-11-18 | 2022-01-11 | 郑州大学第一附属医院 | Urological calculus smashing and sucking device |
| CN114533262A (en) * | 2021-12-23 | 2022-05-27 | 中山大学孙逸仙纪念医院 | Negative pressure optical fiber fixing suction tube connected with ureteroscope |
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| CN108542340A (en) * | 2018-04-24 | 2018-09-18 | 海纳阳光（北京）医药控股有限公司 | A kind of nested type Flexible ureteroscope |
| CN108542340B (en) * | 2018-04-24 | 2024-03-12 | 海纳阳光（北京）医药控股有限公司 | Nested ureteral soft lens |
| CN109998672A (en) * | 2019-04-30 | 2019-07-12 | 武汉佑康科技有限公司 | A kind of sheath pipe cap and the endoscope guide sheath with sheath pipe cap |
| WO2020220485A1 (en) * | 2019-04-30 | 2020-11-05 | 武汉佑康科技有限公司 | Sheath cap and endoscope introducer sheath with sheath cap |
| JP2022528535A (en) * | 2019-04-30 | 2022-06-14 | 武漢佑康科技有限公司 | A kind of sheath tube cap and endoscopic guide sheath with sheath tube cap |
| EP3964156A4 (en) * | 2019-04-30 | 2022-12-14 | Wuhan Youcare Technology Co., Ltd. | Sheath cap and endoscope introducer sheath with sheath cap |
| JP7209112B2 (en) | 2019-04-30 | 2023-01-19 | 武漢佑康科技有限公司 | A kind of sheath cap and endoscope guide sheath with sheath cap |
| CN112545608A (en) * | 2020-12-08 | 2021-03-26 | 昆明市延安医院 | Urinary system intracavity milling type stone breaking device |
| CN113907838A (en) * | 2021-11-18 | 2022-01-11 | 郑州大学第一附属医院 | Urological calculus smashing and sucking device |
| CN114533262A (en) * | 2021-12-23 | 2022-05-27 | 中山大学孙逸仙纪念医院 | Negative pressure optical fiber fixing suction tube connected with ureteroscope |
| CN114533262B (en) * | 2021-12-23 | 2023-10-20 | 中山大学孙逸仙纪念医院 | Negative pressure optical fiber fixing suction tube connected with ureteroscope |
| WO2024045714A1 (en) * | 2022-08-31 | 2024-03-07 | 湖南省华芯医疗器械有限公司 | Front-end assembly of ureteral sheath, ureteral sheath, and device inserted into ureter |
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