CN208838086U - A kind of ureter sheath and its head end cap - Google Patents
A kind of ureter sheath and its head end cap Download PDFInfo
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- CN208838086U CN208838086U CN201721470941.7U CN201721470941U CN208838086U CN 208838086 U CN208838086 U CN 208838086U CN 201721470941 U CN201721470941 U CN 201721470941U CN 208838086 U CN208838086 U CN 208838086U
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- vacuum suction
- head end
- end cap
- channel
- access
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Abstract
The utility model discloses a kind of head end caps, including head end cap ontology, vacuum suction channel is equipped in the head end cap ontology, the entrance side in the vacuum suction channel is equipped with for preventing large-sized calculus rubble from entering the baffle structure in the vacuum suction channel.The invention also discloses a kind of ureter sheaths, 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, it is equipped with the vacuum suction access being connected with the vacuum suction channel in the multi-lumen tube, is equipped with the vacuum suction interface being connected with the vacuum suction access in the operation portion.The ureter sheath and its head end cap of the utility model can effectively prevent calculus rubble to block pipeline, can improve reliability effectively.
Description
Technical field
The utility model belongs to the field of medical instrument technology, is specifically related to a kind of ureter sheath and its head end cap.
Background technique
Renal plevis, lower even bladder are connect on ureter, are a pair of elongated pipelines, are in oblate column, caliber average out to 0.5-0.7
Centimetre.Adult 25-35 centimetres of ureter overall length, after being located at peritonaeum, the front vertical on the inside of greater psoas muscle lowers into pelvis.It is defeated
There are three narrow parts for urinary catheter: one migrates place (ureter section start) in renal plevis and ureter, and one is being crossed minor pelvis entrance
Place, the last one is in the inside for entering the bladder wall.It is that calculus, clot and necrotic tissue are easy the position stopped 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
It carries out treatment to establish used in operation path, endoscope, laser fiber, calculus removing instrument or operation cable etc. is imported by channel.
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 the sheath sheath that includes negative pressure connector and be connected with negative pressure connector, the sheath includes long-armed pipe and short
Arm pipe, the long-armed pipe is connected by welding with galianconism pipe to be connect；The Medical endoscope passes through very thin elastic force apparatus and attraction 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 the technical effect that sheath has the blood, liquid and pathological tissues that attract in surgical field of view, when encountering calculus rubble
Afterwards, under the action of negative pressure, it is easy the biggish calculus rubble of sucking, leads to line clogging, and then vacuum suction is caused 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 connecting with vacuum suction sheath, the vacuum suction sheath includes
Sheath tube end, with the scope input terminal of scope cooperation, the negative pressure connecting pin that is connect with vacuum suction machine.Similarly, when negative using this
When pressure attracts sheath cleaned system calculi in vivo rubble, biggish calculus rubble is easy blocking vacuum suction sheath, leads to 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, working portion include the steering tiller of conduit and control guiding-tube bend, and conduit portion includes hard tube and hose, hard tube set
Outside hose, steering tiller controls hose bending.In clinical use, conduit portion enters human body urinary tract, later by hand
Handle operates hose bending, completes to check or treat.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 there are still 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 will increase trouble
The sense of discomfort of person, or even cause patient muscle's spasm, to hold conduit tightly, it is allowed to that urinary catheter cannot be can smoothly enter into.Meanwhile using hard
Form of the pipe sleeve outside hose, increases the diameter of conduit entirety, so that conduit is in insertion children's urethra or ureterostenosis
Patient when, the resistance being subject to is big, it is easier to cause the spasm of patient muscle, or cause centainly to injure to the urethra of patient.
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 operator can't see internal situation, in the case where misoperation, if the length of flexible pipe extending hard tube it is shorter and in hand
When forcing bending under the control of handle, it is easy to which the optical fiber to fracture in hose because bending radius is too small causes endoscope to damage.
Meanwhile the inner working channel of existing hose is usually three, respectively instrument channel, steel wire channel and image are logical
Road, image channel the inside are additionally provided with lighting fiber, are easy to damaged image optical fiber when long-time uses, reduce optical image fibers
Service life.In addition, the plane where plane and hose where the axial line in steel wire channel has a clamp in hose bending
Angle, to keep the bending operation of hose not flexible, 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
Similarly by the way of the combination of soft or hard sheath, therefore inevitably there is also above-mentioned deficiencies.
Summary of the invention
In view of this, can be effectively prevent the purpose of this utility model is to provide a kind of ureter sheath and its head end cap
Calculus rubble blocks pipeline, can improve reliability effectively.
In order to achieve the above objectives, the utility model provides the following technical solutions:
The utility model first proposed a kind of head end cap, including head end cap ontology, be equipped in the head end cap ontology negative
Attraction channel is pressed, the entrance side in the vacuum suction channel is equipped with for preventing large-sized calculus rubble from entering the negative pressure
Baffle structure in attraction channel.
Further, the center in the vacuum suction channel is equipped with coaxial Bladder stone channel.
Further, the baffle structure be setting 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 in the vacuum suction channel, and I annular of the spacer bar is
Cloth is set as at least two.
Further, the baffle structure is the spacer bar II being arranged in the vacuum suction channel.
Further, the spacer bar II is located at the radial direction in the vacuum suction channel, and II annular of the spacer bar
Be uniformly arranged is at least two.
Further, the head end cap ontology is made of SUS304 material.
Further, image channel, steel wire channel and waterflood path are additionally provided in the head end cap ontology.
The utility model also proposed a kind of ureter sheath, including work department and operation portion, and the work department includes multi-cavity
Pipe, 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 multi-lumen tube
It is interior be equipped with equipped with the vacuum suction access being connected with the vacuum suction channel, in the operation portion it is logical with the vacuum suction
The vacuum suction interface that road is connected.
Further, the center in the vacuum suction channel is equipped with coaxial Bladder stone channel, and the vacuum suction is logical
The center on road is equipped with the Bladder stone access being connected with the Bladder stone channel, is equipped in the operation portion logical with the Bladder stone
The Bladder stone interface that road is connected.
Further, it is additionally provided with image channel in the head end cap ontology, is equipped with and described image channel in the multi-lumen tube
The image access being connected, the operation portion is interior to be equipped with the image interface being connected with described image access.
Further, it is additionally provided with waterflood path in the head end cap ontology, is equipped with and the waterflood path in the multi-lumen tube
The water filling access being connected, the interior water injection interface being equipped with and the water filling access is connected of the operation portion.
Further, the outer 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, it is additionally provided with steel wire channel in the head end cap ontology, is equipped with and the steel wire channel in the multi-lumen tube
The steel wire access being connected, the operation portion is interior to be equipped with for driving the wirerope being located in the steel wire access is flexible to drive in turn
Move the curved push rod of the multi-lumen tube.
Further, on the radial section of the multi-lumen tube, the center of circle of the steel wire access and the vacuum suction access
The center of circle be located at the same of the multi-lumen tube radial section diametrically；And in multi-lumen tube bending, the steel wire access
Axis and the axis of the vacuum suction access be always positioned in approximately the same plane.
Further, the multi-lumen tube includes approaching side section, the lower bending deformation bending section used in the stretching of the wirerope
The work back segment being connected with the operation portion, the head end cap are mounted 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 utility model has the beneficial effects that:
The head end cap of the utility model is arranged baffle structure by the entrance side in vacuum suction channel, can effectively prevent
The biggish calculus rubble of tablet diameter enters in vacuum suction channel, can effectively prevent vacuum suction channel jam, can
Enough ensure that vacuum suction effect will not fail, reliability is higher.
The ureter sheath of the utility model is being grasped by the way that the steel wire channel being connected and steel wire access is arranged using setting
The push rod driving wirerope made in portion is flexible, effectively multi-lumen tube can be driven to be bent, suffered from so that entrance be enable flexibly to enter
The intracorporal target area of person；Since there is no the hard sheath of outside, turning part is more flexible when carrying out flexure operation, and there is no because
The limitation of hard sheath and the problem of damage multi-lumen tube；
By setting in the center of circle in the center of circle of steel wire access and vacuum suction access to positioned at the same of multi-lumen tube radial section
One diametrically, it can be ensured that when multi-lumen tube is bent, the axis of steel wire access and the axis of vacuum suction access are always positioned at together
In one plane, thus because of the plane and vacuum suction where the axial line of steel wire access when overcoming the bending of existing multi-lumen tube
Plane where channel has malfunction, not accurate problem caused by certain angle.
Detailed description of the invention
In order to keep the purpose of this utility model, technical scheme and beneficial effects clearer, the utility model provides as follows
Attached drawing is illustrated:
Fig. 1 is the structural schematic diagram of the utility model ureter sheath embodiment；
Fig. 2 is the structural schematic diagram of the first structure of head end cap；
Fig. 3 is the structural schematic diagram of second of structure of head end cap；
Fig. 4 is the structural schematic diagram of the third structure of head end cap；
Fig. 5 is the structural schematic diagram of the 4th kind of structure of head end cap；
Fig. 6 is the longitudinal section view of multi-lumen tube.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments, so that those skilled in the art
The utility model can be better understood and can be practiced, but illustrated embodiment is not as the restriction to the utility model.
As shown in Figure 1, being the structural schematic diagram of the utility model ureter sheath embodiment.The ureter sheath of the present embodiment,
Including work department and operation portion 1, work department includes multi-lumen tube 2, and one end of multi-lumen tube 2 is connected with operation portion, other end installation is set
There is head end cap 3.The head end cap 3 of the present embodiment, including head end cap ontology 4, head end cap ontology 4 is interior to be equipped with vacuum suction channel 5, bears
The entrance side of attraction channel 5 is pressed to be equipped with for preventing large-sized calculus rubble from entering the barrier knot in vacuum suction channel
Structure.The head end cap ontology 4 of the present embodiment includes inserting section 6, and multi-lumen tube 2 is equipped with the inserting groove cooperated with inserting section 6, multi-lumen tube
It is equipped with the vacuum suction access being connected with vacuum suction channel 5 in 2, is equipped in operation portion 1 and is connected with vacuum suction access
Vacuum suction interface.
The center in the vacuum suction channel 5 of the present embodiment is equipped with coaxial Bladder stone channel 7, vacuum suction access
Center is equipped with the Bladder stone access 12 being connected with Bladder stone channel 7, is equipped with the holmium being connected with Bladder stone access in operation portion
Laser interface.It is additionally provided with image channel 8 in the head end cap ontology 4 of the present embodiment, is equipped in multi-lumen tube 2 and is connected with image channel 8
Logical image access 13, operation portion is interior to be equipped with the image interface being connected with image access.In the head end cap ontology 4 of the present embodiment
It is additionally provided with waterflood path 9, the water filling access 14 being connected with waterflood path 9 is equipped in multi-lumen tube 2, is equipped with and water filling in operation portion
The water injection interface that access is connected.Be additionally provided with steel wire channel 10 in the head end cap ontology 4 of the present embodiment, be equipped in multi-lumen tube 2 with
The steel wire access 15 that steel wire channel 10 is connected, be equipped in operation portion for drive the wirerope in steel wire access 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 made to have preferable experience.The head end cap ontology 4 of the present embodiment is made of SUS304 material, and more
The outer 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 in vacuum suction channel 5, and it is at least two that I 11 annular of spacer bar, which is uniformly arranged,.Such as
Structural schematic diagram shown in Fig. 2-5, when respectively spacer bar I 11 is respectively set to 2,3,4 and 8.By setting every
The entrance side in vacuum suction channel is divided into several grid by blend stop, and the biggish calculus rubble of partial size can be effectively prevent to enter
Into vacuum suction channel, it is logical that the calculus rubble that can ensure to enter in vacuum suction channel will not block vacuum suction
Road.Certainly, in some embodiments, setting Bladder stone channel can not be had in vacuum suction channel 5, at this point, baffle structure is
Spacer bar II in vacuum suction channel is set, and similarly, spacer bar II is located at the radial direction in vacuum suction channel, and barrier
It is at least two that II annular of item, which is uniformly arranged, and 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 access and the center of circle of vacuum suction access 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 access and vacuum suction access
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 wirerope
The work back segment for stretching lower bending deformation bending section used and being connected with operation portion 1, head end cap 3 are mounted in approaching side section.This
The length of the bending section of embodiment is 40-65mm, and turning radius meets the size of human intracavity's body, flexible operation, conveniently.
The ureter sheath of the present embodiment is being operated by the way that the steel wire channel being connected and steel wire access is arranged using setting
Push rod driving wirerope in portion is flexible, effectively multi-lumen tube can be driven to be bent, so that entrance be enable flexibly to enter patient
Intracorporal 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 access and vacuum suction access is set as being 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 access and vacuum suction are logical
The axis on road is always positioned in approximately the same plane, thus because of the axial line institute of steel wire access when overcoming the bending of existing multi-lumen tube
Plane and vacuum suction channel where plane have certain angle caused by malfunction, not accurate problem.
The ureter sheath of the present embodiment is arranged baffle structure by the entrance side in vacuum suction channel, can effectively prevent
The biggish calculus rubble of tablet diameter enters in vacuum suction channel, can effectively prevent vacuum suction channel jam, can
Enough ensure that vacuum suction effect will not fail, reliability is higher.
Embodiment described above is only preferred embodiments for fully illustrating the utility model, the utility model
Protection scope it is without being limited thereto.Those skilled in the art made equivalent substitute or change on the basis of the utility model
It changes, both is within the protection scope of the present invention.The protection scope of the utility model is subject to claims.
Claims (18)
1. a kind of head end cap, it is characterised in that: including head end cap ontology, vacuum suction channel is equipped in the head end cap ontology,
The entrance side in the vacuum suction channel is equipped with for preventing large-sized calculus rubble from entering in the vacuum suction channel
Baffle structure.
2. head end cap according to claim 1, it is characterised in that: the center in the vacuum suction channel is equipped with coaxial
Bladder stone channel.
3. head end cap according to claim 2, it is characterised in that: the baffle structure is that setting is logical in 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 channel
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 is that setting is logical in 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 channel
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 ontology is made of SUS304 material.
8. head end cap according to claim 1-7, it is characterised in that: be additionally provided with image in the head end cap ontology
Channel, steel wire channel and waterflood path.
9. a kind of 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 described in any item head end caps of claim 1-8, described
It is equipped with the vacuum suction access being connected with the vacuum suction channel in multi-lumen tube, is equipped with and the negative pressure in the operation portion
The vacuum suction interface for attracting access to be connected.
10. ureter sheath according to claim 9, it is characterised in that: the center in the vacuum suction channel is equipped with and it
Coaxial Bladder stone channel, it is logical that the center of the vacuum suction access is equipped with the Bladder stone being connected with the Bladder stone channel
Road, the operation portion is interior to be equipped with the Bladder stone interface being connected with the Bladder stone access.
11. ureter sheath according to claim 10, it is characterised in that: it is logical to be additionally provided with image in the head end cap ontology
Road is equipped with the image access being connected with described image channel in the multi-lumen tube, is equipped in the operation portion and described image
The image interface that access is connected.
12. ureter sheath according to claim 11, it is characterised in that: it is logical to be additionally provided with water filling in the head end cap ontology
Road is equipped with the water filling access being connected with the waterflood path in the multi-lumen tube, is equipped in the operation portion and the water filling
The water injection interface that access is connected.
13. ureter sheath according to claim 9, it is characterised in that: the outer 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 the described in any item ureter sheaths of claim 9-13, it is characterised in that: be additionally provided in the head end cap ontology
Steel wire channel, the multi-lumen tube is interior to be equipped with the steel wire access being connected with the steel wire channel, is equipped with and is used in the operation portion
Driving is located at the wirerope in the steel wire access and stretches and then drive the curved push rod of the multi-lumen tube.
15. ureter sheath according to claim 14, it is characterised in that: described on the radial section of the multi-lumen tube
The center of circle of steel wire access and the center of circle of the vacuum suction access are located at the same of the multi-lumen tube radial section diametrically；And
In multi-lumen tube bending, the axis of the axis of the steel wire access and the vacuum suction access is always positioned at same flat
On face.
16. ureter sheath according to claim 15, it is characterised in that: the multi-lumen tube includes approaching side section, described
Lower bending deformation bending section and the work back segment being connected with the operation portion, the head end cap used in the stretching of wirerope are mounted 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 |
|---|---|---|---|
| CN201721470941.7U CN208838086U (en) | 2017-11-07 | 2017-11-07 | A kind of ureter sheath and its head end cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721470941.7U CN208838086U (en) | 2017-11-07 | 2017-11-07 | A kind of ureter sheath and its head end cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208838086U true CN208838086U (en) | 2019-05-10 |
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ID=66350657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721470941.7U Active CN208838086U (en) | 2017-11-07 | 2017-11-07 | A kind of ureter sheath and its head end cap |
Country Status (1)
| Country | Link |
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| CN (1) | CN208838086U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107898486A (en) * | 2017-11-07 | 2018-04-13 | 杭州无创光电有限公司 | Ureter sheath and its head end cap |
| 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 |
-
2017
- 2017-11-07 CN CN201721470941.7U patent/CN208838086U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107898486A (en) * | 2017-11-07 | 2018-04-13 | 杭州无创光电有限公司 | Ureter sheath and its head end cap |
| 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 |
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