CN216797761U - Calculus fragment extractor under ureteroscope - Google Patents
Calculus fragment extractor under ureteroscope Download PDFInfo
- Publication number
- CN216797761U CN216797761U CN202123111751.5U CN202123111751U CN216797761U CN 216797761 U CN216797761 U CN 216797761U CN 202123111751 U CN202123111751 U CN 202123111751U CN 216797761 U CN216797761 U CN 216797761U
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- China
- Prior art keywords
- calculus
- cutting blade
- telescopic
- stone
- push
- 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.)
- Expired - Fee Related
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- 239000012634 fragment Substances 0.000 title claims abstract description 19
- 239000004575 stone Substances 0.000 claims abstract description 26
- 230000007246 mechanism Effects 0.000 abstract description 2
- 239000008187 granular material Substances 0.000 abstract 1
- 208000000913 Kidney Calculi Diseases 0.000 description 2
- 208000000014 Ureteral Calculi Diseases 0.000 description 2
- 210000003734 kidney Anatomy 0.000 description 2
- 208000031868 Calculus ureteric Diseases 0.000 description 1
- 206010007027 Calculus urinary Diseases 0.000 description 1
- 206010029148 Nephrolithiasis Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 230000003907 kidney function Effects 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 238000002504 lithotomy Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 210000001635 urinary tract Anatomy 0.000 description 1
- 208000008281 urolithiasis Diseases 0.000 description 1
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- Surgical Instruments (AREA)
Abstract
The utility model relates to the technical field of medical instruments, and particularly discloses a ureteroscope calculus fragment extractor which comprises a calculus extracting catheter, a cutting blade and a calculus collecting cavity; the rear end of the calculus removing guide pipe is provided with a handheld part, the cutting blade is obliquely arranged at the front end of the calculus removing guide pipe in a downward tilting mode, and the calculus collecting cavity is formed in the calculus removing guide pipe below the cutting blade; get the front end of stone pipe and seted up the control chamber, cutting blade is fixed to be set up in the drive pivot, and the drive pivot is rotated and is installed in the control chamber, fixedly on one side circumference outer wall of drive pivot being provided with driven gear, and driven gear's bottom meshing is connected with flexible rack plate, the flexible guide arm of one end fixedly connected with of flexible rack plate. Install cutting blade on this calculus piece ware of getting stone, cutting blade cuts the calculus of bigger granule through flexible actuating mechanism control blade to can collect the back through the collection stone chamber that sets up in blade below and take out the calculus piece of excision.
Description
Technical Field
The utility model relates to the technical field of medical instruments, in particular to a ureteroscope calculus fragment extractor.
Background
Kidney and ureteral calculi, also known as upper urinary tract calculi, occur in middle-aged and middle-aged adults, and can be diagnosed in most cases through medical history, physical examination, necessary X-ray and laboratory tests. The aim of treating the kidney and ureteral calculus is not only to relieve pain and protect kidney function, but also to find and relieve the cause of disease as much as possible and prevent the recurrence of calculus.
In order to solve the above problems, a ureteroscopic calculus fragmentation extractor is needed, which is generally used for treating calculus in urolithiasis, but it is difficult to extract large-sized fragments during surgery, and it is difficult to manually excise the large-sized fragments, and it is impossible to extract generated tissue specimens out of the human body by using an under-mirror extraction instrument.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a ureteroscope lithotomy fragment extractor to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: a ureteroscope calculus fragment extractor comprises a calculus extracting catheter, a cutting blade and a calculus collecting cavity; the rear end of the calculus removing catheter is provided with a handheld part, the cutting blade is obliquely arranged at the front end of the calculus removing catheter in a downward manner, and the calculus collecting cavity is formed in the calculus removing catheter below the cutting blade; the front end of the calculus removing catheter is provided with a control cavity, the cutting blade is fixedly arranged on the driving rotating shaft, the driving rotating shaft is rotatably arranged in the control cavity, the outer wall of the circumference of one side of the driving rotating shaft is fixedly provided with a driven gear, the bottom of the driven gear is connected with a telescopic rack plate in a meshed mode, one end of the telescopic rack plate is fixedly connected with a telescopic guide rod, and the telescopic guide rod is arranged inside the calculus removing catheter in a sliding mode; one end of the telescopic guide rod, which is far away from the telescopic rack plate, is fixedly connected with a push-pull rod, and the top end of the push-pull rod is fixedly provided with a push-pull handle.
Preferably, the calculus removing catheter is provided with a telescopic chute matched with the telescopic guide rod structure, and the telescopic guide rod is arranged inside the telescopic chute in a sliding manner.
Preferably, the telescopic rack plate comprises a connecting sliding block of a strip structure, a horizontal rack group is arranged on the upper surface of the connecting sliding block, and the horizontal rack group is meshed with the driven gear.
Preferably, a return spring is fixedly connected between the inner wall of the front end of the telescopic chute and the connecting slide block.
Preferably, a push-pull chute for the push-pull rod and the telescopic chute to slide synchronously is formed in the position, corresponding to the push-pull rod, of the top end of the telescopic chute.
Preferably, the cutting blade is arranged at the top end of the stone collecting cavity in a downward inclined mode, and the top end of the cutting blade is provided with a cutting edge.
Preferably, the cross section of the inner cavity of the stone collecting cavity is of an arc structure with an upward opening.
Compared with the prior art, the utility model has the beneficial effects that:
according to the ureteroscope lower calculus fragment extractor provided by the utility model, the cutting blade is arranged on the calculus fragment extractor, the cutting blade controls the cutting blade to cut large-particle calculus through the telescopic driving mechanism, and the cut calculus fragments can be collected and taken out through the calculus collecting cavity arranged below the blade.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a partial detailed structural schematic diagram of the present invention;
fig. 3 is a front view of the cutting blade and the telescopic rack plate of the present invention.
In the figure: 1. a stone taking conduit; 2. a cutting blade; 21. a blade; 3. a stone collecting cavity; 4. driving the rotating shaft; 5. a control chamber; 6. a driven gear; 7. a telescopic rack plate; 71. connecting the sliding block; 72. a horizontal rack set; 8. a telescopic guide rod; 9. a push-pull rod; 10. a push-pull handle; 11. a telescopic chute; 12. a return spring; 13. a push-pull chute; 14. a hand-held portion.
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.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1-3, the present invention provides a technical solution: a ureteroscope lower stone fragment extractor comprises a stone extracting catheter 1, a cutting blade 2 and a stone collecting cavity 3; the rear end of the calculus removing catheter 1 is provided with a handheld part 14, the cutting blade 2 is obliquely arranged at the front end of the calculus removing catheter 1 downwards, and the calculus collecting cavity 3 is arranged on the calculus removing catheter 1 below the cutting blade 2; the front end of the calculus removing catheter 1 is provided with a control cavity 5, a cutting blade 2 is fixedly arranged on a driving rotating shaft 4, the driving rotating shaft 4 is rotatably arranged in the control cavity 5, a driven gear 6 is fixedly arranged on the circumferential outer wall of one side of the driving rotating shaft 4, the bottom of the driven gear 6 is connected with a telescopic rack plate 7 in a meshed mode, one end of the telescopic rack plate 7 is fixedly connected with a telescopic guide rod 8, and the telescopic guide rod 8 is arranged inside the calculus removing catheter 1 in a sliding mode; one end of the telescopic guide rod 8 far away from the telescopic rack plate 7 is fixedly connected with a push-pull rod 9, and the top end of the push-pull rod 9 is fixedly provided with a push-pull handle 10.
Furthermore, set up the flexible spout 11 with the structural adaptation of flexible guide arm 8 on getting stone pipe 1, flexible guide arm 8 slides and sets up the inside at flexible spout 11.
Further, the telescopic rack plate 7 comprises a connecting slide block 71 with a strip structure, a horizontal rack group 72 is arranged on the upper surface of the connecting slide block 71, and the horizontal rack group 72 is in meshed connection with the driven gear 6.
Further, a return spring 12 is fixedly connected between the inner wall of the front end of the telescopic chute 11 and the connecting slide block 71.
Furthermore, a push-pull chute 13 for the push-pull rod 9 and the telescopic chute 11 to slide synchronously is formed at the top end of the telescopic chute 11 corresponding to the push-pull rod 9.
Further, the cutting blade 2 is arranged at the top end of the stone-collecting cavity 3 in a downward inclined manner, and the top end of the cutting blade 2 is provided with a blade edge 21.
Further, the cross section of the inner cavity of the stone collecting cavity 3 is of an arc structure with an upward opening.
The working principle is as follows: when the extractor is in practical use and when a calculus needing to be cut is seen under a urethroscope or ureteroscope, an operator presses the push-pull handle 10 with fingers and then pushes the push-pull handle forward, so that the push-pull handle 10 drives the telescopic guide rod 8 to move forward, the telescopic guide rod 8 synchronously pushes the telescopic rack plate 7 to move forward, and the horizontal rack group 72 on the upper surface of the telescopic rack plate 7 is connected with the bottom end of the driven gear 6 in a meshed mode, so that the driven gear 6 rotates anticlockwise.
Because the driven gear 6 and the cutting blade 2 are both fixedly arranged on the driving rotating shaft 4, the driven gear 6 drives the cutting blade 2 to rotate upwards through the driving rotating shaft 4, the cutting stone is cut off through the blade 21 at the top end of the cutting blade 2 while the cutting blade 2 moves, and the cut-off stone fragments fall into the stone collecting cavity 3 to be collected; and releasing the push-pull handle 10 to enable the push-pull handle 10 to reset under the action of the reset spring 12.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a calculus piece extractor under ureteroscope which characterized in that: comprises a calculus removing catheter (1), a cutting blade (2) and a calculus collecting cavity (3); the rear end of the calculus removing catheter (1) is provided with a handheld part (14), the cutting blade (2) is obliquely arranged at the front end of the calculus removing catheter (1) in a downward mode, and the calculus collecting cavity (3) is formed in the calculus removing catheter (1) below the cutting blade (2); the stone taking guide pipe is characterized in that a control cavity (5) is formed in the front end of the stone taking guide pipe (1), a cutting blade (2) is fixedly arranged on a driving rotating shaft (4), the driving rotating shaft (4) is rotatably arranged in the control cavity (5), a driven gear (6) is fixedly arranged on the outer wall of the circumference of one side of the driving rotating shaft (4), the bottom of the driven gear (6) is connected with a telescopic rack plate (7) in a meshed mode, one end of the telescopic rack plate (7) is fixedly connected with a telescopic guide rod (8), and the telescopic guide rod (8) is arranged inside the stone taking guide pipe (1) in a sliding mode; one end of the telescopic guide rod (8) far away from the telescopic rack plate (7) is fixedly connected with a push-pull rod (9), and the top end of the push-pull rod (9) is fixedly provided with a push-pull handle (10).
2. The ureteroscopy stone fragment extractor of claim 1, wherein: the calculus removing catheter (1) is provided with a telescopic chute (11) matched with the telescopic guide rod (8) in structure, and the telescopic guide rod (8) is arranged inside the telescopic chute (11) in a sliding mode.
3. The ureteroscopy stone fragment extractor of claim 1, wherein: the telescopic rack plate (7) comprises a connecting slide block (71) with a strip-shaped structure, a horizontal rack group (72) is arranged on the upper surface of the connecting slide block (71), and the horizontal rack group (72) is meshed with the driven gear (6).
4. The ureteroscopy stone fragment extractor of claim 2, wherein: and a return spring (12) is fixedly connected between the inner wall of the front end of the telescopic chute (11) and the connecting slide block (71).
5. The ureteroscopy stone fragment extractor of claim 2, wherein: and a push-pull chute (13) for the push-pull rod (9) and the telescopic chute (11) to synchronously slide is formed in the position, corresponding to the push-pull rod (9), of the top end of the telescopic chute (11).
6. The ureteroscopy stone fragment extractor of claim 1, wherein: cutting blade (2) downward sloping setting is provided with cutting edge (21) on the top of album stone chamber (3).
7. The ureteroscopy stone fragment extractor of claim 1, wherein: the cross section of the inner cavity of the stone collecting cavity (3) is of an arc structure with an upward opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123111751.5U CN216797761U (en) | 2021-12-10 | 2021-12-10 | Calculus fragment extractor under ureteroscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123111751.5U CN216797761U (en) | 2021-12-10 | 2021-12-10 | Calculus fragment extractor under ureteroscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216797761U true CN216797761U (en) | 2022-06-24 |
Family
ID=82053793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123111751.5U Expired - Fee Related CN216797761U (en) | 2021-12-10 | 2021-12-10 | Calculus fragment extractor under ureteroscope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216797761U (en) |
-
2021
- 2021-12-10 CN CN202123111751.5U patent/CN216797761U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220624 |