CN221205520U - Visual tissue catheter expander - Google Patents
Visual tissue catheter expander Download PDFInfo
- Publication number
- CN221205520U CN221205520U CN202322653818.0U CN202322653818U CN221205520U CN 221205520 U CN221205520 U CN 221205520U CN 202322653818 U CN202322653818 U CN 202322653818U CN 221205520 U CN221205520 U CN 221205520U
- Authority
- CN
- China
- Prior art keywords
- inner sleeve
- sleeve
- expander
- utility
- tissue catheter
- 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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- 230000000007 visual effect Effects 0.000 title abstract description 7
- 239000012528 membrane Substances 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 230000000151 anti-reflux effect Effects 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000012800 visualization Methods 0.000 abstract description 3
- 238000003780 insertion Methods 0.000 abstract description 2
- 230000037431 insertion Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract 1
- 210000001519 tissue Anatomy 0.000 description 8
- 208000015181 infectious disease Diseases 0.000 description 3
- 210000004556 brain Anatomy 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 210000001175 cerebrospinal fluid Anatomy 0.000 description 1
- 238000007428 craniotomy Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000017074 necrotic cell death Effects 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 210000003625 skull Anatomy 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
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- Media Introduction/Drainage Providing Device (AREA)
Abstract
The utility model discloses a visual tissue catheter expander, which mainly solves the problem that the conventional tissue catheter expander is inconvenient to use. The catheter expander comprises a round inner sleeve, an outer sleeve sleeved outside the inner sleeve and coaxially arranged with the inner sleeve and shorter than the inner sleeve in length, a handle fixed on the outer wall of the inner sleeve and connected with the rear end of the outer sleeve through threads, and an anti-backflow structure arranged on the inner side of the front end of the outer sleeve; wherein the inner sleeve is transparent, and the front end of the inner sleeve is of a closed structure without an opening. The utility model changes the inner sleeve into transparent visualization, is beneficial to better observation during operation, increases the accuracy of the insertion of the surgical instrument, has a hollow guide core of more than 4 mm, has a conical head, has a closed front end in a non-opening form, and can be compatible with neuroendoscopic operation equipment and navigation operation equipment after improvement. Therefore, the method is suitable for popularization and application.
Description
Technical Field
The utility model relates to a catheter expander, in particular to a visual tissue catheter expander.
Background
In neurosurgery, in order to reduce surgical trauma and to reduce pain of a patient as much as possible, an endoscope is required. During operation, only a small hole is formed in the skull, and then the endoscope is guided into the cranial cavity through an endoscope guiding device to perform operation. The use of the endoscope reduces the operation risk caused by large-area craniotomy and also reduces the pain of patients.
The prior product guide core (inserted into the brain part) is made of non-transparent material, and the inserted surgical instrument is completely feel-dependent. And most of the current catheter dilators are not provided with a backflow prevention device or are only provided with a film-shaped backflow prevention sheet, and the current catheter dilators are not provided with the capability of controlling the cerebrospinal fluid and the blood in the brain to pass through in one direction, so that the risks of serious complications such as infection and necrosis are increased, and more serious health risks are brought to patients.
Disclosure of utility model
The utility model aims to provide a visual tissue catheter expander, which mainly solves the problem that the conventional tissue catheter expander is inconvenient to use.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
The visual tissue catheter expander comprises a round inner sleeve, an outer sleeve sleeved outside the inner sleeve and coaxially arranged with the inner sleeve and shorter than the inner sleeve in length, a handle fixed on the outer wall of the inner sleeve and connected with the rear end of the outer sleeve through threads, and a backflow preventing structure arranged on the inner side of the front end of the outer sleeve; wherein the inner sleeve is transparent, and the front end of the inner sleeve is of a closed structure without an opening.
Further, in the utility model, the backflow preventing structure comprises at least three fan-shaped membranes which form the circular section of the inner sleeve and are fixedly connected with the inner side of the inner sleeve by the arc-shaped edges, and pressing membranes which are connected with the joints of the fan-shaped membranes and are used for preventing the fan-shaped membranes from turning upwards.
Further, in the utility model, the width of the pressed film exceeds the edge of the radius edge of the fan-shaped film by 1-3 mm.
Further, in the utility model, the outer diameter of the inner sleeve is matched with the inner diameter of the opening at the front end of the outer sleeve in a sliding fit manner.
Further, in the utility model, the outer sleeve and the inner sleeve are marked with scale values.
Further, in the present utility model, the fan-shaped film and the squeeze film are both made of a silicone material.
Compared with the prior art, the utility model has the following beneficial effects:
(1) The utility model changes the inner sleeve into transparent visualization, is beneficial to better observation during operation, increases the accuracy of the insertion of the surgical instrument, has a hollow guide core of more than 4mm, has a conical head, has a closed front end in a non-opening form, and can be compatible with neuroendoscopic operation equipment and navigation operation equipment after improvement.
(2) According to the utility model, the anti-backflow structure is arranged, when the inner sleeve is inserted, the inner sleeve can push the sector membrane to overturn downwards under the pushing of the inserting pressure, so that sliding installation is realized, and when the inner sleeve is pulled out, the sector membrane cannot overturn upwards due to the action of the pressing membrane, so that liquid and tissue fragments in an operation area are effectively prevented from being carried out by the inner sleeve and then backflow into the cranium, the pollution of an endoscope lens can be reduced, the operation efficiency can be improved, and the occurrence risk of infection can be reduced.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present utility model.
FIG. 2 is a schematic cross-sectional view of an outer sleeve according to the present utility model.
FIG. 3 is a schematic view of the structure of the anti-backflow film in the utility model.
Wherein, the names corresponding to the reference numerals are:
1-inner sleeve, 2-outer sleeve, 3-handle, 4-fan-shaped membrane, 5-press membrane and 6-guide core.
Detailed Description
The utility model will be further illustrated by the following description and examples, which include but are not limited to the following examples.
Examples
As shown in fig. 1 to 3, the visual tissue catheter dilator disclosed by the utility model comprises a round inner sleeve 1, an outer sleeve 2 sleeved outside the inner sleeve 1 and coaxially arranged with the inner sleeve 1 and shorter than the inner sleeve in length, a handle 3 fixed on the outer wall of the inner sleeve 1 and connected with the rear end of the outer sleeve 2 through threads, and a backflow preventing structure arranged on the inner side of the front end of the outer sleeve 2; wherein the inner sleeve 1 is transparent, and the front end of the inner sleeve is of a closed structure without an opening. Wherein, the outer diameter of the inner sleeve 1 is matched with the inner diameter of the opening at the front end of the outer sleeve 2 in a sliding fit manner; meanwhile, the outer sleeve 2 and the inner sleeve 1 are marked with scale values, so that the observation is convenient. In the embodiment, the inner sleeve is changed into transparent visualization, so that better observation during operation is facilitated, the accuracy of inserting an operation instrument is improved, the hollow of the guide core 6 is larger than 4 mm, the head is also in a cone shape, the front end is in a closed type non-opening form, and the nerve endoscopic operation equipment and the navigation operation equipment can be compatible after improvement.
In this embodiment, the backflow preventing structure includes at least three fan-shaped membranes 4 forming a circular section of the inner sleeve and having an arc edge fixedly connected to the inner side of the inner sleeve 1, and a pressing membrane 5 connected to the seams between the fan-shaped membranes and each other for preventing the fan-shaped membranes 4 from turning up. Wherein the width of the film pressing 5 exceeds the edge of the radius edge of the fan-shaped film 4 by 1-3 mm; and the fan-shaped film 4 and the pressing film 5 are both made of a silica gel material.
When the inner sleeve is specifically used, when the inner sleeve is inserted, the inner sleeve can push the sector membrane to overturn downwards under the pushing of the inserting pressure, so that sliding installation is realized, and when the inner sleeve is pulled out, the sector membrane cannot overturn upwards due to the action of the pressing membrane, so that liquid and tissue fragments in an operation area are effectively prevented from being carried out by the inner sleeve and then backflow into the cranium, and infection is avoided. Thus, the present utility model is a substantial feature and improvement over the prior art.
The above embodiment is only one of the preferred embodiments of the present utility model, and should not be used to limit the scope of the present utility model, but all the insubstantial modifications or color changes made in the main design concept and spirit of the present utility model are still consistent with the present utility model, and all the technical problems to be solved are included in the scope of the present utility model.
Claims (6)
1. The visualized tissue catheter expander is characterized by comprising a round inner sleeve (1), an outer sleeve (2) sleeved outside the inner sleeve (1) and coaxially arranged with the inner sleeve (1) and shorter than the inner sleeve in length, a handle (3) fixed on the outer wall of the inner sleeve (1) and connected with the rear end of the outer sleeve (2) through threads, and a backflow preventing structure arranged on the inner side of the front end of the outer sleeve (2); wherein the inner sleeve (1) is transparent, and the front end of the inner sleeve is of a closed structure without an opening.
2. A visualized tissue catheter expander as claimed in claim 1 and wherein said anti-reflux structure comprises at least three sector membranes (4) forming an inner sleeve circular cross section and having arcuate edges fixedly connected to the inner side of the inner sleeve (1), and a squeeze film (5) connected to the joints of the sector membranes in pairs for preventing the sector membranes (4) from tipping up.
3. A visualized tissue catheter expander as claimed in claim 2 and wherein the width of said membrane (5) exceeds the radial edge of the fan-shaped membrane (4) by 1-3 mm.
4. A visualized tissue catheter dilator according to claim 3, wherein the outer diameter of the inner sleeve (1) is adapted to the inner diameter of the opening at the front end of the outer sleeve (2), a sliding fit.
5. A visualized tissue catheter expander according to claim 4 and wherein the outer sleeve (2) and the inner sleeve (1) are marked with graduation values on the outside.
6. A visualized tissue catheter dilator according to claim 5 wherein the fan-shaped membrane (4) and the squeeze film (5) are both made of a silicone material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322653818.0U CN221205520U (en) | 2023-09-28 | 2023-09-28 | Visual tissue catheter expander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322653818.0U CN221205520U (en) | 2023-09-28 | 2023-09-28 | Visual tissue catheter expander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221205520U true CN221205520U (en) | 2024-06-25 |
Family
ID=91566065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322653818.0U Active CN221205520U (en) | 2023-09-28 | 2023-09-28 | Visual tissue catheter expander |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221205520U (en) |
-
2023
- 2023-09-28 CN CN202322653818.0U patent/CN221205520U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |