CN219645786U - Novel ureter guiding sheath - Google Patents
Novel ureter guiding sheath Download PDFInfo
- Publication number
- CN219645786U CN219645786U CN202321033293.4U CN202321033293U CN219645786U CN 219645786 U CN219645786 U CN 219645786U CN 202321033293 U CN202321033293 U CN 202321033293U CN 219645786 U CN219645786 U CN 219645786U
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- Prior art keywords
- sheath
- seat
- hose
- drainage tube
- clamping
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- 210000000626 ureter Anatomy 0.000 title claims abstract description 8
- 239000007788 liquid Substances 0.000 claims description 10
- 239000002699 waste material Substances 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 abstract description 2
- 230000000916 dilatatory effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 210000001635 urinary tract Anatomy 0.000 description 1
Landscapes
- Supports For Pipes And Cables (AREA)
Abstract
The utility model relates to the field of endoscopic auxiliary instruments, and discloses a novel ureter guiding sheath, which comprises an expansion pipe and a sheath seat, wherein the head end of the sheath seat is connected with a sheath pipe body, and the tail end of the sheath seat is provided with a horn-shaped opening; the expansion pipe penetrates into the sheath seat along the opening and is communicated with the sheath pipe body; a guide seat is also arranged on the expansion pipe; the guide seat is provided with a circle of spiral blade-shaped first check ring and a circle of second check ring positioned between the first check ring and the sheath seat, a group of convex ribs are arranged in an opening of the sheath seat, and when the guide seat is screwed so that the convex ribs are clamped on the first check ring, the second check ring is sealed on the inner wall of the opening; the ureter guiding sheath is extremely convenient to assemble and disassemble, and in the process of screwing the guiding seat, the second retainer ring can be further pushed to move towards the inner direction of the sheath seat, so that the second retainer ring is tightly sealed on the inner wall of the sheath seat, and the sealing effect is excellent.
Description
Technical Field
The utility model relates to an endoscopic auxiliary instrument, in particular to a novel ureteral guide sheath.
Background
Ureteral sheaths are used in urological surgery to create a passageway for endoscopic instruments into the urinary tract.
The ureter guiding sheath comprises a dilating tube, a sheath seat and other structural components, and after the dilating tube penetrates into the sheath seat, a flared opening at the end part of the sheath seat is plugged by virtue of a guiding seat on the dilating tube.
In the prior art, a guide seat is connected to a sheath seat in a threaded screwing manner; a buckle is arranged outside the guide seat so as to be buckled on the outer side wall of the sheath seat; when the guide seat is used, the guide seat is fixed on the sheath seat by screwing a plurality of circles, and the buckle is removed in the disassembly and assembly process of the guide seat, so that the locking is released, and the operation is inconvenient.
Disclosure of Invention
The utility model aims to overcome the defects of the background technology and provides a novel ureteral guide sheath.
The embodiment of the utility model is realized by the following technical scheme:
the novel ureter guiding sheath comprises an expansion pipe and a sheath seat, wherein the head end of the sheath seat is connected with a sheath pipe body, and the tail end of the sheath seat is provided with a horn-shaped opening; the expansion pipe penetrates into the sheath seat along the opening and is communicated with the sheath pipe body; a guide seat is also arranged on the expansion pipe;
the guide seat is provided with a circle of spiral blade-shaped first check ring and a circle of second check ring positioned between the first check ring and the sheath seat, a group of convex ribs are arranged in an opening of the sheath seat, and when the guide seat is screwed so that the convex ribs are clamped on the first check ring, the second check ring is sealed on the inner wall of the opening.
Further, the first check ring is connected with the second check ring through a plurality of rib plates.
Further, a group of drainage tubes are further arranged on the sheath seat, and the drainage tubes are communicated with the inside of the sheath seat.
Further, two sets of grab handles are arranged on the outer side wall of the sheath seat oppositely.
Further, the first end of the drainage tube is connected with the sheath seat, and the second end of the drainage tube is connected with a group of waste liquid bags through a hose, and the hose is also provided with a water stop clamp.
Further, the second end of the drainage tube is provided with a conical part, and the outer diameter of the conical part is smaller than the inner diameter of the hose.
Further, the hose is sleeved on the outer wall of the drainage tube, and a plurality of clamping strips are arranged on the outer wall of the drainage tube in a surrounding mode; the upper end of the clamping strip is arranged on the outer wall of the drainage tube, and the lower end of the clamping strip extends to the outer peripheral side of the hose in an outward inclined manner; the drainage tube is further connected with nuts above the clamping strips in a threaded mode, clamping rings are arranged at the lower ends of the nuts, and when the nuts are screwed in the direction of the hose, the clamping rings clamp the clamping strips, so that the lower ends of the clamping strips are pressed against the outer wall of the hose.
Further, a protruding portion is further arranged on the surface, facing one side of the hose, of the lower end of the clamping strip.
Further, a plurality of saw-tooth-shaped stripes are arranged on the inner side surface of the protruding portion.
Further, along the upper end to the lower end direction of card strip, the lateral surface of card strip still is equipped with the wedge face that the slope outwards extends, the internal diameter of snap ring is between card strip upper end to the distance of drainage tube axis and card strip lower extreme to the distance of drainage tube axis.
The technical scheme of the embodiment of the utility model has at least the following advantages and beneficial effects:
when the ureter guiding sheath is used, as the first retainer ring on the guiding seat is in a spiral blade shape, the protrusion on the inner wall of the sheath seat can be clamped into the first retainer ring along the notch by screwing the guiding seat to a certain angle, and the guiding seat is fixed on the sheath seat, so that the dismounting is very convenient; because the first retainer ring is in a spiral blade shape, the second retainer ring can be further pushed to move towards the inner direction of the sheath seat in the process of screwing the guide seat, so that the second retainer ring is tightly sealed on the inner wall of the sheath seat.
Drawings
Fig. 1 is a schematic diagram of a ureteral introducer sheath according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of the connection between a sheath mount and a guide mount according to an embodiment of the present utility model;
FIG. 3 is a schematic view illustrating an internal structure of a sheath hub according to an embodiment of the present utility model;
FIG. 4 is a schematic view showing the connection relationship between a drain tube and a hose according to still another embodiment of the present utility model;
icon: 10-guiding seat, 100-first retainer ring, 1000-notch, 1001-rib plate, 101-second retainer ring, 11-expansion pipe, 20-sheath seat, 21-grab handle, 22-drainage pipe, 220-conical part, 221-clamping strip, 2210-protruding part, 2211-wedge-shaped surface, 23-nut, 230-retainer ring, 30-sheath pipe body, 40-waste liquid bag, 41-hose and 410-water stop clip.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Embodiment one:
referring to fig. 1 to 3, the present embodiment discloses a novel ureteral introducer sheath, which comprises a guide seat 10, an expansion tube 11, a sheath seat 20 and a waste liquid bag 40.
The sheath base 20 has different diameters at its head and tail ends, a group of sheath tubes 30 are connected to the head end in a pluggable manner, the tail end of the sheath tubes has a horn-shaped opening, and the head end and the tail end are communicated.
The expansion pipe 11 is provided with a group of guide seats 10 in a pluggable manner, and when in use, the expansion pipe 11 penetrates into the sheath seat 20 along the opening of the sheath seat 20 and is communicated with the sheath pipe body 30.
The guide seat 10 serves to close the end of the sheath seat 20, and prevents waste liquid from flowing out along the cavity and the opening inside the sheath seat 20 when in use.
In order to achieve the sealing effect of the guide seat 10 on the opening of the sheath seat 20, referring to fig. 3, a circle of spiral blade-shaped first check rings 100 are arranged on the guide seat 10, a group of second check rings 101 are further arranged on the guide seat 10, the second check rings 101 are arranged on the outer wall of the guide seat 10 between the first check rings 100 and the sheath seat 20, and the first check rings 100 are connected with the second check rings 101 through a plurality of rib plates 1001.
The second retainer ring 101 is made of a rubber pad material with micro elasticity.
In addition, a set of ribs (not shown) are provided in the opening of the sheath holder 20, and the second retainer 101 is sealed to the inner wall of the opening when the guide holder 10 is screwed so that the ribs are snapped onto the first retainer 100 along the notch 1000 of the first retainer 100.
In the process of screwing the guide seat 10, the convex rib is in sliding contact with the surface of the first retainer ring 100, so that the second retainer ring 101 can be pushed to further tightly prop against the inside of the sheath seat 20, and the second retainer ring 101 is tightly sealed on the inner wall of the opening of the sheath seat 20.
Through the structure, the guide seat 10 can be fixed at the tail end of the sheath seat 20 by only slightly screwing, and the disassembly is realized by only reversely screwing, so that the disassembly and the assembly are extremely convenient.
In addition, referring to fig. 1, a group of drainage tubes 22 are further arranged on the sheath base 20, the drainage tubes 22 are communicated with the inside of the sheath base 20, the drainage tubes 22 are obliquely communicated with the inside of the sheath base 20, and the drainage function is realized without affecting the operation of an operator in the operation process; in addition, referring to fig. 2, the inner wall of the sheath seat 20 is provided with gradual change drainage grooves from shallow to deep, and when the guide seat 10 and the sheath seat 20 are locked, a large amount of waste liquid is collected in the sheath seat 20 and reaches the drainage tube 22 along with the drainage grooves, so that effective drainage is realized.
The gradual change drainage groove structure design can increase the drainage speed, and on the other hand, the residual quantity of the waste liquid on the inner wall of the sheath seat 20 can be effectively reduced.
In addition, in order to facilitate the holding and fixing of the sheath holder 20, two sets of handles 21 are disposed on the outer sidewall of the sheath holder 20.
Referring to fig. 1, the first end of the drainage tube 22 is connected with the sheath holder 20, and the second end is connected with the waste liquid bag 40 through a hose 41, and the hose 41 is further provided with a water stop clip 410, so that waste liquid can be conveniently collected in the waste liquid bag.
Embodiment two:
generally, since the hose 41 is directly sleeved on the end of the drainage tube 22, there is a risk of falling off during use, in order to further strengthen the connection strength of the drainage tube 22 and the hose 41.
In this embodiment, a plurality of clamping strips 221 are further disposed on the outer wall of the drainage tube 22 in a surrounding manner, the clamping strips 221 in this embodiment are four groups, and the four groups of clamping strips 221 are disposed at equal intervals around the axis of the drainage tube 22.
Referring to fig. 4, the upper end of the clamping bar 221 is integrally formed on the outer wall of the drainage tube 22, and the lower end of the clamping bar 221 extends to the outer peripheral side of the hose 41 in an outward inclined manner, that is, in a natural state, the distance between the lower end of the clamping bar 221 and the outer wall of the drainage tube 22 is greater than the distance between the upper end of the clamping bar 221 and the outer wall of the drainage tube 22; the drainage tube 22 is further connected with a group of nuts 23 in a threaded manner, the nuts 23 are located above the four groups of clamping strips 221, a group of clamping rings 230 are arranged at the lower ends of the nuts 23, when the nuts 23 are screwed in the direction of the hose 41, the clamping rings 230 move downwards, and the clamping rings 230 are caused to clamp the clamping strips 221, so that the lower ends of the four groups of clamping strips 221 shrink and gather and are pressed against the outer wall of the hose 41.
In order to further enhance the clamping effect of the clamping strips 221 on the hose 41, the surface of the lower end surface of each clamping strip 221 facing the side of the hose 41 is also provided with a convex part 2210, and in the process of screwing down the nut 23, the extrusion deformation capacity of the convex part 2210 on the hose 41 is larger.
In addition, optionally, a plurality of saw-tooth stripes are further disposed on the inner side surface of the protruding portion 2210, so as to further increase the clamping effect.
In addition, referring to fig. 4, in some preferred embodiments, a wedge-shaped surface 2211 extending obliquely outwards is further provided along the outer side surface of the clamping bar 221 from top to bottom, and in a natural state, the inner diameter of the clamping ring 230 is between the distance from the upper end of the clamping bar 221 to the axis of the drainage tube 22 and the distance from the lower end of the clamping bar 221 to the axis of the flow tube 22, and the nut 23 is slightly screwed downwards, so that the clamping bar 223 can be clamped on the hose 41.
Referring to fig. 4, in addition, in the present embodiment, the second end of the drainage tube 22 is provided with a tapered portion 220, and the outer diameter of the end of the tapered portion 220 is smaller than the inner diameter of the hose 41, so that the hose 41 with a smaller inner diameter can be conveniently sleeved on the drainage tube 22.
The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The novel ureter guiding sheath comprises an expansion pipe (11) and a sheath seat (20), wherein the head end of the sheath seat (20) is connected with a sheath pipe body (30), and the tail end of the sheath pipe body is provided with a horn-shaped opening; the expansion pipe (11) penetrates into the sheath seat (20) along the opening and is communicated with the sheath pipe body (30); the expansion pipe (11) is also provided with a guide seat (10), and is characterized in that:
the guide seat (10) is provided with a first retainer ring (100) in the shape of a spiral blade and a second retainer ring (101) arranged between the first retainer ring (100) and the sheath seat (20), a group of protruding ribs are arranged in an opening of the sheath seat (20), and when the guide seat (10) is screwed so that the protruding ribs are clamped into the first retainer ring (100), the second retainer ring (101) is sealed on the inner wall of the opening.
2. The novel ureteral introducer sheath of claim 1, characterized in that: the first check ring (100) is connected with the second check ring (101) through a plurality of rib plates (1001).
3. The novel ureteral introducer sheath according to claim 1 or 2, characterized in that: a group of drainage tubes (22) are further arranged on the sheath base (20), and the drainage tubes (22) are communicated with the inside of the sheath base (20).
4. The novel ureteral introducer sheath according to claim 1 or 2, characterized in that: two sets of grab handles (21) are also oppositely arranged on the outer side wall of the sheath seat (20).
5. The novel ureteral introducer sheath according to claim 3, characterized in that: the first end of the drainage tube (22) is connected with the sheath seat (20), the second end of the drainage tube is connected with a group of waste liquid bags (40) through a hose (41), and the hose (41) is also provided with a water stop clamp (410).
6. The novel ureteral introducer sheath of claim 5, characterized in that: the second end of the drainage tube (22) is provided with a conical part (220), and the outer diameter of the conical part (220) is smaller than the inner diameter of the hose (41).
7. The novel ureteral introducer sheath of claim 5, characterized in that: the hose (41) is sleeved on the outer wall of the drainage tube (22), and a plurality of clamping strips (221) are further arranged on the outer wall of the drainage tube (22) in a surrounding mode; the upper end of the clamping strip (221) is arranged on the outer wall of the drainage tube (22), and the lower end of the clamping strip extends to the outer periphery side of the hose (41) in an outward inclined manner; the drainage tube (22) is further connected with nuts (23) located above the clamping strips (221) in a threaded mode, clamping rings (230) are arranged at the lower ends of the nuts (23), and when the nuts (23) are screwed in the direction of a hose (41), the clamping strips (221) are clamped and pressed by the clamping rings (230), so that the lower ends of the clamping strips (221) are pressed against the outer wall of the hose (41).
8. The novel ureteral introducer sheath of claim 7, characterized in that: the lower end of the clamping strip (221) faces the surface of one side of the hose (41) and is also provided with a protruding part (2210).
9. The novel ureteral introducer sheath of claim 8, characterized in that: the inner side surface of the protruding part (2210) is also provided with a plurality of saw-tooth-shaped stripes.
10. The novel ureteral introducer sheath of claim 7, characterized in that: the outer side surface of the clamping strip (221) is further provided with a wedge-shaped surface (2211) extending obliquely outwards along the direction from the upper end to the lower end of the clamping strip (221), and the inner diameter of the clamping ring (230) is between the distance from the upper end of the clamping strip (221) to the axis of the drainage tube (22) and the distance from the lower end of the clamping strip (221) to the axis of the drainage tube (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321033293.4U CN219645786U (en) | 2023-05-04 | 2023-05-04 | Novel ureter guiding sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321033293.4U CN219645786U (en) | 2023-05-04 | 2023-05-04 | Novel ureter guiding sheath |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219645786U true CN219645786U (en) | 2023-09-08 |
Family
ID=87854055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321033293.4U Active CN219645786U (en) | 2023-05-04 | 2023-05-04 | Novel ureter guiding sheath |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219645786U (en) |
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2023
- 2023-05-04 CN CN202321033293.4U patent/CN219645786U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |