CN219720655U - Anal fistula probe - Google Patents
Anal fistula probe Download PDFInfo
- Publication number
- CN219720655U CN219720655U CN202222980794.5U CN202222980794U CN219720655U CN 219720655 U CN219720655 U CN 219720655U CN 202222980794 U CN202222980794 U CN 202222980794U CN 219720655 U CN219720655 U CN 219720655U
- Authority
- CN
- China
- Prior art keywords
- catheter
- anal fistula
- hollow channel
- expansion water
- fistula probe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 208000004680 Rectal Fistula Diseases 0.000 title claims abstract description 32
- 206010002156 anal fistula Diseases 0.000 title claims abstract description 32
- 239000000523 sample Substances 0.000 title claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 61
- 238000002347 injection Methods 0.000 claims abstract description 21
- 239000007924 injection Substances 0.000 claims abstract description 21
- 239000007787 solid Substances 0.000 claims abstract description 17
- 239000011148 porous material Substances 0.000 claims abstract description 11
- 241001631457 Cannula Species 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 206010016717 Fistula Diseases 0.000 abstract description 14
- 230000003890 fistula Effects 0.000 abstract description 14
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 9
- 208000031481 Pathologic Constriction Diseases 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000003085 diluting agent Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 206010015866 Extravasation Diseases 0.000 description 1
- 206010000269 abscess Diseases 0.000 description 1
- 210000002255 anal canal Anatomy 0.000 description 1
- 230000036251 extravasation Effects 0.000 description 1
- 229920002457 flexible plastic Polymers 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000002757 inflammatory effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Media Introduction/Drainage Providing Device (AREA)
Abstract
The present utility model relates to an anal fistula probe comprising: a catheter, a solid guidewire and a plurality of layers of cannulas; the sleeves are slidably arranged on the catheter in a mode of being sleeved from inside to outside; one end of the catheter is provided with an expansion water sac structure; the catheter is formed with a hollow channel; the front end of the hollow channel passes through the expansion water sac structure; the pipe wall of the catheter is provided with a water injection pore canal for injecting water into the expansion water sac structure so as to expand the expansion water sac structure; the front end of the water injection pore canal is communicated with the expansion water sac structure; the rear end of the water injection pore canal and the rear end of the hollow channel are connected with the injector; a solid guide wire is inserted into the hollow channel to enhance toughness; the catheter is a soft catheter containing a network skeleton made of wires. The beneficial effects of the utility model are as follows: an anal fistula probe capable of defining an internal orifice and passing through a fistula is provided.
Description
Technical Field
The utility model relates to an anal fistula probe.
Background
Anal fistula is an inflammatory tract between the epithelial surface of the anal canal and the perianal skin or the meeting pubes. More than 90% of anal fistulae originate from crypt gland abscesses of the Morgagini crypt, the internal orifice of anal fistulae. Treatment of anal fistula is mainly surgery, and the final purpose is to drain local infection and eradicate fistula. The key technical link of all surgical procedures is to define the internal orifice to ensure that the fistula is adequately drained.
Conventional anal fistula probes often use a metal solid core probe to probe the internal orifice during clinical procedures, where a hydrogen peroxide diluent is injected into the fistula external orifice. The observation of hydrogen peroxide bubble extravasation at the stoma confirms the location of the stoma within the fistula. In practice, there is still a fistula which is not open, and the diluted hydrogen peroxide solution cannot pass to the internal orifice due to the narrow section of the fistula cavity.
Disclosure of Invention
The present utility model is directed to an anal fistula probe that solves the above-mentioned problems of the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
an anal fistula probe, comprising: a catheter, a solid guidewire and a plurality of layers of cannulas; the sleeves are slidably arranged on the catheter in a mode of being sleeved from inside to outside;
one end of the catheter is provided with an expansion water sac structure; the catheter is formed with a hollow channel; the front end of the hollow channel passes through the expansion water sac structure; the pipe wall of the catheter is provided with a water injection pore canal for injecting water into the expansion water sac structure so as to expand the expansion water sac structure; the front end of the water injection pore canal is communicated with the expansion water sac structure; the rear end of the water injection pore canal and the rear end of the hollow channel are connected with the injector; a solid guide wire is inserted into the hollow channel to enhance toughness; the catheter is a soft catheter containing a network skeleton made of wires.
An anal fistula probe, comprising: a catheter and a plurality of layers of cannulas; the sleeves are slidably arranged on the catheter in a mode of being sleeved from inside to outside; one end of the catheter is provided with an expansion water sac structure; the catheter is formed with a hollow channel; the hollow channel passes through the expansion water sac structure; the channel walls of the hollow channels are internally provided with water injection channels for injecting water into the expansion water sac structure so as to expand the expansion water sac structure.
As a further scheme of the utility model: the catheter is a soft catheter containing a network skeleton made of wires.
As a further scheme of the utility model: an anal fistula probe further comprising: a solid guidewire for insertion into the hollow channel.
As a further scheme of the utility model: the solid guide wire is provided with a threading hole for threading to carry out anal fistula threading.
As a further scheme of the utility model: the tube walls of the sleeve and the catheter are provided with scales.
As a further scheme of the utility model: the sleeve is provided with a pushing handle part which is convenient for a user to push the sleeve so as to slide the sleeve.
As a further scheme of the utility model: the length of the sleeve is 10-15cm.
As a further scheme of the utility model: the diameter of the sleeve is 1-3mm.
Compared with the prior art, the utility model has the beneficial effects that: an anal fistula probe capable of defining an internal orifice and passing through a fistula is provided.
An expansion water bag structure is formed at one end of the catheter, and the expansion water bag structure is expanded after water injection. The size of the expansion water sac structure can be controlled according to the amount of injected water. When the narrow section is needed, the water injection quantity can be reduced. When the anal fistula probe protrudes from the inner opening, the water injection quantity can be increased to prevent the probe from being displaced and retracted.
The outside of the catheter is provided with a plurality of layers of sleeves which are used for adapting to fistulae with different inner diameters and can be automatically increased or decreased.
The anal fistula probe adopts a multilayer design: the innermost catheter is a fine hollow catheter (which can be injected with hydrogen peroxide solution) and acts like a guide wire, the catheter is a soft catheter containing a network skeleton composed of metal wires which provide toughness to ensure that the catheter remains hollow and can pass through liquid in a bent state, the catheter is easy to pass through a narrow section of a fistula due to the small diameter, the outer catheter is a plurality of layers of sleeves (layers of flexible plastic materials) which are then inserted through the guide wire to expand the narrow section, and the fistula cavity is probed until reaching the inner opening.
Other features and advantages of the present utility model will be disclosed in the following detailed description of the utility model and the accompanying drawings.
Drawings
FIG. 1 is a schematic view of a catheter and cannula of an anal fistula probe of the utility model;
FIG. 2 is a schematic illustration of the internal structure of the structure of FIG. 1;
FIG. 3 is a schematic view of a solid wire of an anal fistula probe of the utility model;
FIG. 4 is an enlarged view of a portion of the structure of FIG. 2;
fig. 5 is a schematic view of the catheter of the structure of fig. 1.
List of reference numerals: catheter 10, inflation water sac structure 11, hollow channel 12, water injection pore canal 13, sleeve 20, pushing handle 21, solid guide wire 30.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 to 5, in an embodiment of the present utility model, an anal fistula probe comprises: catheter 10, solid wire 30, and several layers of cannulae 20. Several layers of sleeves 20 are slidably disposed over the catheter 10 in an inside-out fashion.
Specifically, the outer side of the catheter 10 is provided with a plurality of layers of sleeves 20 which are used for adapting to fistulae with different inner diameters and can be automatically increased or decreased. Since the length of the catheter 10 is longer than the cannula 20, the catheter 10 may extend from the cannula 20. In use, the catheter 10 is advanced into the fistula stricture and the cannula 20 is advanced through the catheter 10 to dilate the stricture, facilitating exploration of complex fistula shapes.
An inflatable bladder structure 11 is formed at one end of the catheter 10. The catheter 10 is formed with a hollow channel 12. A hollow passage 12 passes through the inflated water bladder structure 11. Specifically, the front end of the hollow passage 12 passes through the inflation bladder structure 11. The wall of the conduit 10 is formed with water injection channels 13. The water injection hole 13 is used for injecting water into the expansion water sac structure 11 to expand the expansion water sac structure 11. In use, the inflated balloon structure 11 will not puncture normal tissue, creating a false fistula. The backflow can be prevented even when the hydrogen peroxide solution is injected into the guide pipe 10.
And the size of the expansion water sac structure 11 can be controlled according to the amount of injected water. When the narrow section is needed, the water injection quantity can be reduced. When the anal fistula probe protrudes from the inner opening, the water injection quantity can be increased to prevent the probe from being displaced and retracted.
The front end of the water injection hole channel 13 is communicated with the expansion water bag structure 11. The rear end of the water injection hole channel 13 and the rear end of the hollow channel 12 are connected with a syringe. That is, catheter 10 may be used to seek the internal orifice of the fistula by injecting a hydrogen peroxide diluent. A solid guidewire 30 is inserted into the hollow channel 12 to enhance toughness. The catheter 10 is a flexible catheter containing a network of wires. It is ensured that the hollow is maintained in a bent state and that the liquid can pass through.
As a specific embodiment, a solid guidewire 30 is used for insertion into the hollow channel 12.
As a specific embodiment, the solid wire 30 is provided with a threading hole. The threading hole is used for threading to carry out anal fistula hanging wire.
As a specific embodiment, the walls of the sleeve 20 and catheter 10 are provided with graduations.
As a specific embodiment, the sleeve 20 is provided with a push handle 21. The push handle portion 21 facilitates the user to push the sleeve 20 to slide the sleeve 20.
As a specific embodiment, the length of the sleeve 20 is 10-15cm. The diameter of the sleeve 20 is 1-3mm.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (9)
1. An anal fistula probe comprising: a catheter, a solid guidewire and a plurality of layers of cannulas; the sleeves are slidably arranged on the catheter in a mode of being sleeved from inside to outside;
an expansion water bag structure is formed at one end of the catheter; the catheter is formed with a hollow channel; the front end of the hollow channel passes through the expansion water bag structure; the pipe wall of the catheter is provided with a water injection pore canal for injecting water into the expansion water sac structure so as to expand the expansion water sac structure; the front end of the water injection pore canal is communicated with the expansion water bag structure; the rear end of the water injection pore canal and the rear end of the hollow channel are connected with an injector; the solid guide wire is inserted into the hollow channel to enhance toughness; the catheter is a soft catheter containing a network skeleton composed of metal wires.
2. An anal fistula probe comprising: a catheter and a plurality of layers of cannulas; the sleeves are slidably arranged on the catheter in a mode of being sleeved from inside to outside; an expansion water bag structure is formed at one end of the catheter; the catheter is formed with a hollow channel; the hollow passage passes through the expansion water sac structure; and a water injection pore canal for injecting water into the expansion water sac structure to expand the expansion water sac structure is formed in the channel wall of the hollow channel.
3. The anal fistula probe of claim 2, wherein,
the catheter is a soft catheter containing a network skeleton composed of metal wires.
4. The anal fistula probe of claim 2, wherein,
the anal fistula probe further comprises: a solid guidewire for insertion into the hollow channel.
5. The anal fistula probe of claim 4, wherein,
the solid guide wire is provided with a threading hole for threading to carry out anal fistula threading.
6. The anal fistula probe of claim 2, wherein,
the tube walls of the sleeve and the catheter are provided with scales.
7. The anal fistula probe of claim 2, wherein,
the sleeve is provided with a pushing handle which is convenient for a user to push the sleeve so as to enable the sleeve to slide.
8. The anal fistula probe of claim 2, wherein,
the length of the sleeve is 10-15cm.
9. The anal fistula probe of claim 2, wherein,
the diameter of the sleeve is 1-3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222980794.5U CN219720655U (en) | 2022-11-09 | 2022-11-09 | Anal fistula probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222980794.5U CN219720655U (en) | 2022-11-09 | 2022-11-09 | Anal fistula probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219720655U true CN219720655U (en) | 2023-09-22 |
Family
ID=88059584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222980794.5U Active CN219720655U (en) | 2022-11-09 | 2022-11-09 | Anal fistula probe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219720655U (en) |
-
2022
- 2022-11-09 CN CN202222980794.5U patent/CN219720655U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |