CN215606352U - Disposable tissue catheter expander - Google Patents
Disposable tissue catheter expander Download PDFInfo
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- CN215606352U CN215606352U CN202121539852.XU CN202121539852U CN215606352U CN 215606352 U CN215606352 U CN 215606352U CN 202121539852 U CN202121539852 U CN 202121539852U CN 215606352 U CN215606352 U CN 215606352U
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- thick bamboo
- circular groove
- shaping
- circular slot
- location section
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Abstract
The utility model relates to the field of medical instruments, in particular to a disposable tissue catheter dilator which is used for providing a channel and expanding the visual field at a clinical intracranial operation position and comprises an outer sleeve, a positioning cylinder, an inner sleeve and an inner core, wherein a first circular groove is formed at the left end in the positioning cylinder, a second circular groove is formed at the right end in the positioning cylinder, the first circular groove and the second circular groove are communicated with each other, the inner diameter of the second circular groove is smaller than that of the first circular groove, the right end of the outer sleeve is fixedly arranged in the first circular groove, the inner sleeve is arranged in the second circular groove in a sliding fit manner, the left end of the inner sleeve is inserted into the outer sleeve in a clearance fit manner, graduated scales are respectively carved and formed at the outer sides of the outer sleeve and the inner sleeve, a measuring window is formed at the outer side of the positioning cylinder, the inner sleeve is arranged in the testing window, the inner core is inserted into the inner sleeve in a sliding fit manner, a circular ring handle is formed at the outer side of the inner sleeve, the side shaping of a location section of thick bamboo has the spout, and the right-hand member of spout leads to a location section of thick bamboo setting, and the ring handle clearance fit is installed in the spout.
Description
Technical Field
The utility model relates to the field of medical instruments, in particular to a disposable tissue catheter expander which is used for providing a channel at a clinical intracranial operation position and expanding a visual field.
Background
In neurosurgery, in order to reduce surgical trauma and reduce the pain of a patient as much as possible, an endoscope needs to be used. When in operation, only a small hole is needed to be opened on the skull, and then an endoscope is guided into the cranial cavity through an endoscope guiding device to carry out the operation. The use of the endoscope reduces the operation risk caused by large-area craniotomy and also reduces the pain of patients. In addition, during the treatment of cerebral edema and other diseases, a suction device is also required to be introduced into the cranial cavity to suck the edema fluid.
The leading-in device for endoscope in the prior art generally has a graduated scale arranged on the outer side thereof so that the medical care personnel can know the inserted distance, and Chinese utility model patent (publication number: CN209122306U, bulletin date 20190719) discloses a disposable tissue catheter expander, wherein an inner sleeve is in sliding fit in the outer sleeve, and the graduated scale is arranged on the outer side of the outer sleeve and the outer side of the inner sleeve, but the inner sleeve is easy to rotate when sliding, so that the observation of the graduated scale is inconvenient, and great operation difficulty is brought to the medical care personnel and doctors.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical scheme capable of solving the problems in order to overcome the defects.
A disposable tissue catheter expander, which comprises an outer sleeve and a positioning cylinder, interior sleeve pipe and inner core, left end shaping in the location section of thick bamboo has first circular slot, right-hand member shaping in the location section of thick bamboo has the second circular slot, communicate each other between first circular slot and the second circular slot, the internal diameter of second circular slot is less than the internal diameter of first circular slot, the right-hand member fixed mounting of outer tube is in first circular slot, interior sleeve pipe sliding fit installs in the second circular slot, interior sheathed tube left end clearance fit inserts in the outer tube, the shaping has the scale all to carve in outer tube and the interior sheathed tube outside, the outside shaping of a location section of thick bamboo has measurement window, interior sleeve pipe setting is in the test window, the setting of interior sleeve pipe is inserted to inner core sliding fit, interior sheathed tube outside shaping has the ring handle, the side shaping of a location section of thick bamboo has the spout, the right-hand member of spout leads out the setting of a location section of thick bamboo, ring handle clearance fit installs in the spout.
As a further scheme of the utility model: a butterfly handle is formed at the left end of the outer side of the positioning cylinder.
As a further scheme of the utility model: the inner diameter of the second circular groove is equal to the inner diameter of the outer sleeve.
As a further scheme of the utility model: the outside shaping of outer tube right-hand member has the external screw thread, and the shaping has the internal thread in the first circular slot, and screw fit each other between external screw thread and the internal thread.
As a further scheme of the utility model: the outer sides of the left ends of the outer sleeve and the inner sleeve are both formed with conical curved surfaces, and the left end of the inner core is formed with a semi-radius.
As a further scheme of the utility model: the outside fixed mounting of a location section of thick bamboo has transparent baffle, and transparent baffle covers the measurement window setting.
Compared with the prior art, the utility model has the beneficial effects that: the setting through a location section of thick bamboo makes interior sleeve pipe slip in the overcoat pipe more stable, confirms interior sheathed tube angle through the mode of ring handle sliding fit in the spout for interior sleeve pipe can't be at outer sleeve pipe and a location section of thick bamboo internal rotation, and the scale can keep constantly in measuring the window, thereby conveniently in looking over the scale.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic cross-sectional structure of the present invention.
Fig. 3 is a schematic diagram of the exploded sectional structure of the present invention.
Shown in the figure: 1. an outer sleeve; 2. a positioning cylinder; 3. an inner sleeve; 4. an inner core; 5. a first circular groove; 6. a second circular groove; 7. a graduated scale; 8. a measurement window; 9. a circular ring handle; 10. a chute; 11. a butterfly handle; 12. an external thread; 13. an internal thread; 14. a conical curved surface; 15. semi-rounding; 16. a transparent baffle.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, a disposable tissue catheter dilator comprises an outer sleeve 1, a positioning cylinder 2, an inner sleeve 3 and an inner core 4, wherein a first circular groove 5 is formed at the left end of the positioning cylinder 2, a second circular groove 6 is formed at the right end of the positioning cylinder 2, the first circular groove 5 and the second circular groove 6 are communicated with each other, the inner diameter of the second circular groove 6 is smaller than the inner diameter of the first circular groove 5, the right end of the outer sleeve 1 is fixedly arranged in the first circular groove 5, the inner sleeve 3 is arranged in the second circular groove 6 in a sliding fit manner, the left end of the inner sleeve 3 is inserted into the outer sleeve 1 in a clearance fit manner, graduated scales 7 are respectively formed at the outer sides of the outer sleeve 1 and the inner sleeve 3, a measuring window 8 is formed at the outer side of the positioning cylinder 2, the inner sleeve 3 is arranged in the testing window 8, the inner core 4 is arranged in a sliding fit manner and inserted into the inner sleeve 3, a circular ring handle 9 is formed at the outer side of the inner sleeve 3, a sliding groove 10 is formed in the side edge of the positioning cylinder 2, the right end of the sliding groove 10 is arranged through the positioning cylinder 2, and a circular ring handle 9 is installed in the sliding groove 10 in a clearance fit manner;
the principle is as follows: the setting through a location section of thick bamboo 2 makes interior sleeve pipe 3 slip more stable in outer sleeve pipe 1, confirms interior sleeve pipe 3's angle through the mode of ring handle 9 sliding fit in spout 10 for interior sleeve pipe 3 can't be at outer sleeve pipe 1 and the internal rotation of a location section of thick bamboo 2, thereby makes things convenient for in looking over scale 7, and scale 7 can keep constantly in measuring window 8, makes things convenient for actual operation.
As a further scheme of the utility model: a butterfly handle 11 is formed at the left end of the outer side of the positioning cylinder 2; can control the removal of a location section of thick bamboo 2 through butterfly handle 11, make things convenient for actual operation.
As a further scheme of the utility model: the inner diameter of the second circular groove 6 is equal to the inner diameter of the outer sleeve 1; so that the sliding of the inner sleeve 3 is more stable.
As a further scheme of the utility model: an external thread 12 is formed on the outer side of the right end of the outer sleeve 1, an internal thread 13 is formed in the first circular groove 5, and the external thread 12 and the internal thread 13 are in mutual spiral fit; so that the outer sleeve 1 and the positioning cylinder 2 can be assembled or disassembled, thereby being convenient for disinfection and use.
As a further scheme of the utility model: the outer sides of the left ends of the outer sleeve 1 and the inner sleeve 3 are both formed with a conical curved surface 14, and the left end of the inner core 4 is formed with a semi-radius 15; the novel disposable tissue catheter dilator can be more smoothly inserted into the opening of the skull of a patient, and the pain of the patient can be reduced.
As a further scheme of the utility model: a transparent baffle 16 is fixedly arranged on the outer side of the positioning cylinder 2, and the transparent baffle 16 is arranged to cover the measuring window 8; the transparent barrier 16 can provide a protective effect to the measurement window 8.
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 invention may be embodied in other specific forms without departing from the spirit or essential attributes 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.
Claims (6)
1. The utility model provides a disposable tissue catheter expander, includes outer tube, a location section of thick bamboo, interior sleeve pipe and inner core, its characterized in that: the shaping of the left end in the location section of thick bamboo has first circular slot, the shaping of the right-hand member in the location section of thick bamboo has the second circular slot, communicate each other between first circular slot and the second circular slot, the internal diameter of second circular slot is less than the internal diameter of first circular slot, the right-hand member fixed mounting of outer tube is in first circular slot, interior sleeve pipe sliding fit installs in the second circular slot, interior sheathed tube left end clearance fit inserts in the outer tube, outer tube and interior sheathed tube outside are all carved the shaping and are had the scale, the outside shaping of a location section of thick bamboo has measurement window, interior sleeve pipe setting is in the test window, interior sleeve pipe setting is inserted to inner core sliding fit, interior sheathed tube outside shaping has the ring handle, the side shaping of a location section of thick bamboo has the spout, the right-hand member of spout leads to out a location section of thick bamboo setting, ring handle clearance fit installs in the spout.
2. A single use tissue catheter dilator according to claim 1 and wherein: a butterfly handle is formed at the left end of the outer side of the positioning cylinder.
3. A single use tissue catheter dilator according to claim 1 and wherein: the inner diameter of the second circular groove is equal to the inner diameter of the outer sleeve.
4. A single use tissue catheter dilator according to claim 1 and wherein: the outside shaping of outer tube right-hand member has the external screw thread, and the shaping has the internal thread in the first circular slot, and screw fit each other between external screw thread and the internal thread.
5. A single use tissue catheter dilator according to claim 1 and wherein: the outer sides of the left ends of the outer sleeve and the inner sleeve are both formed with conical curved surfaces, and the left end of the inner core is formed with a semi-radius.
6. A single use tissue catheter dilator according to claim 1 and wherein: the outside fixed mounting of a location section of thick bamboo has transparent baffle, and transparent baffle covers the measurement window setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121539852.XU CN215606352U (en) | 2021-07-07 | 2021-07-07 | Disposable tissue catheter expander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121539852.XU CN215606352U (en) | 2021-07-07 | 2021-07-07 | Disposable tissue catheter expander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215606352U true CN215606352U (en) | 2022-01-25 |
Family
ID=79948541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121539852.XU Active CN215606352U (en) | 2021-07-07 | 2021-07-07 | Disposable tissue catheter expander |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215606352U (en) |
-
2021
- 2021-07-07 CN CN202121539852.XU patent/CN215606352U/en active Active
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