CN112617964B - Medullary cavity focus scraping and washing device - Google Patents
Medullary cavity focus scraping and washing device Download PDFInfo
- Publication number
- CN112617964B CN112617964B CN202110003394.6A CN202110003394A CN112617964B CN 112617964 B CN112617964 B CN 112617964B CN 202110003394 A CN202110003394 A CN 202110003394A CN 112617964 B CN112617964 B CN 112617964B
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- scraping
- plate
- cavity
- washing
- operating rod
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- 238000007790 scraping Methods 0.000 title claims abstract description 135
- 238000005406 washing Methods 0.000 title claims abstract description 83
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 238000005192 partition Methods 0.000 claims abstract description 27
- 238000002347 injection Methods 0.000 claims abstract description 18
- 239000007924 injection Substances 0.000 claims abstract description 18
- 230000000903 blocking effect Effects 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 16
- 230000003902 lesion Effects 0.000 claims description 11
- 210000000988 bone and bone Anatomy 0.000 claims description 8
- 239000012634 fragment Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 239000002893 slag Substances 0.000 description 7
- 239000000428 dust Substances 0.000 description 6
- 208000015181 infectious disease Diseases 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 238000011282 treatment Methods 0.000 description 5
- 210000001185 bone marrow Anatomy 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000013049 sediment Substances 0.000 description 4
- 230000002393 scratching effect Effects 0.000 description 3
- 206010061218 Inflammation Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004054 inflammatory process Effects 0.000 description 2
- 230000001338 necrotic effect Effects 0.000 description 2
- 238000006748 scratching Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 206010031252 Osteomyelitis Diseases 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 238000011269 treatment regimen Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22079—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for with suction of debris
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/22—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22082—Implements for squeezing-off ulcers or the like on the inside of inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; Calculus removers; Calculus smashing apparatus; Apparatus for removing obstructions in blood vessels, not otherwise provided for after introduction of a substance
Abstract
The invention discloses a marrow cavity focus scraping device which comprises a scraping and washing tube body, a first operating rod and a second operating rod, wherein a guide end is connected below the scraping and washing tube body, and a scraping and washing window is formed in the scraping and washing tube body close to the guide end; a central partition plate is arranged in the scraping and washing pipe body to divide an inner cavity into a first cavity and a second cavity, and a space is formed between the central partition plate and the guide end; the first cavity is connected with the suction apparatus and forms a suction channel, and an eccentric partition board is arranged in the second cavity and divides the second cavity into a water injection channel and a camera shooting channel. The beneficial effects are that: 1. the scraping and washing device is convenient for observing the position of a focus in a medullary cavity and scraping whether the focus is completely scraped; 2. because narrow structure in the middle of the marrow cavity both sides are wide, prior art stretches into the marrow cavity, is difficult for the swing, consequently can not scrape some focuses, and this scraping and washing device is convenient for stretch into to the marrow cavity, the scraping and washing board can stretch out the scraping and washing window, scrapes the position that current instrument can not scrape.
Description
Technical Field
The invention relates to the field of orthopedics, in particular to a marrow cavity focus scraping and washing device.
Background
Clinically, patients with marrow cavity infection of long bones of limbs are frequently encountered, particularly the infection after the intramedullary needle fixation of fracture of the long bones of the limbs, and the infected sections in the marrow cavity of the patients are longer and even diffuse into the whole marrow cavity. In the case of treatment for osteomyelitis, the treatment regimen is: the method comprises the steps of firstly reaming marrow along a marrow cavity by a specific marrow cavity drill, entering a necrotic part, thoroughly clearing and repeatedly flushing a focus, and extracting the focus by using a suction apparatus, is the most common treatment method at present, and achieves the purposes of controlling infection and improving the life quality of a patient.
At present, a curette blind-type scratching is mostly adopted for removing lesions in a marrow cavity, pus and scraped objects are sucked out by using a suction apparatus, but the curette blind-type scratching on one hand is difficult to completely remove the lesions, and on the other hand, the scratching action is easy to cause inflammation to be diffused up and down in the marrow cavity, so that the removed necrotic tissues are incomplete, the curette length is limited, the rigidity is high, the cleaning range is limited, the infection control is poor, the treatment period is increased, the recurrence is repeated, and the increase of various treatment costs cannot achieve good treatment effects. When the existing lesion scraping device is used for detecting the position of a lesion, the middle of the marrow cavity is narrow, and the two ends of the marrow cavity are wide, so that some lesions are difficult to scrape.
Disclosure of Invention
The invention aims to solve the problems, and provides a scraping and washing device for a medullary cavity focus, which can conveniently scrape the focus in the medullary cavity, is convenient for collecting and washing the focus, reduces the risk of infection and dissemination and avoids the diffusion of inflammation.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides a medullary cavity focus scraping device which comprises a scraping tube body, a first operating rod and a second operating rod, wherein a guide end is connected to the lower part of the scraping tube body, and a scraping window is formed in the scraping tube body close to the guide end; a central partition plate is arranged in the scraping and washing pipe body to divide an inner cavity into a first cavity and a second cavity, and a space is formed between the central partition plate and the guide end; the first cavity is connected with an aspirator and forms an attraction channel, an eccentric partition plate is arranged in the second cavity and divides the second cavity into a water injection channel and a camera shooting channel, the length of the eccentric partition plate is smaller than that of the central partition plate, the water injection channel is connected with a water source, and a camera with an inclined lens is arranged at the end part of the camera shooting channel;
the first operating rod extends into the water injection channel and extends to the scraping window to be hinged with the scraping plate, the bottom of the scraping plate is hinged with the end part of the central partition plate, the scraping plate is pushed and pulled through the first operating rod, the scraping plate and the camera main body are just attached when the scraping plate is pulled to be in contact with the camera main body, and the scraping plate can extend out of the scraping window to scrape the focus on the inner wall of the medullary cavity by pulling and pushing the scraping plate in a reciprocating mode;
the second operating rod is a threaded rod, the threaded rod is in threaded connection with the suction device connector at the outer end of the suction channel, the second operating rod extends into the suction channel to be close to the guide end, and the inner wall of the suction channel is connected with an elastic sealing baffle plate; a moving block is in threaded connection with the end part, close to the second operating rod, of the second operating rod, the moving block is connected with the blocking plate through a traction rod, and two ends of the traction rod are hinged with the moving block and the blocking plate respectively; and when the second operating rod is rotated, the moving block moves along the second operating rod, and the blocking plate is driven to be spread by the traction rod to be attached to the inner wall of the marrow cavity.
As an important technical scheme of the scheme, a flow guide plate is obliquely arranged at a position, close to the scraping and washing plate, of the central partition plate, and the included angle between the flow guide plate and the central partition plate is 50-70 degrees; a gap is formed between the end part of the eccentric clapboard and the guide plate;
preferably, the first operating rod slides through a deflector having a width less than a width of the squeegee blade.
Preferably, the scraping and washing plate is made of a steel plate, the part of the scraping and washing plate, which is in contact with the inner wall of the marrow cavity, is an arc lip, inclined planes are arranged on two sides of the arc lip, and a plurality of friction ribs perpendicular to the direction of the scraping range are arranged on the inclined planes.
Preferably, a plurality of hollow holes for discharging bone fragments are uniformly formed in the scraping and washing plate;
the hollow holes are circular or strip-shaped holes.
Preferably, the blocking plate is an arc-shaped elastic sheet, and when the arc-shaped elastic sheet is unfolded and contacts with the inner wall of the marrow cavity, the arc-shaped elastic sheet forms an arc-shaped bone fragment collecting tank which is communicated with the suction channel;
and when the arc-shaped elastic sheet is contracted, the arc-shaped elastic sheet can cover the scraping and washing window.
Preferably, the width of the blocking plate is equal to the width of the wiping window.
Preferably, the guide end is tapered, and a head of the guide end is arc-shaped.
Preferably, the outer surface of the guide end is provided with a plurality of scraping ridges, and the length directions of the scraping ridges are consistent with the direction of the conical generatrix.
By adopting the technical scheme, in an initial state, the first operating rod is pulled to enable the scraping and washing plate to be in contact with the position of the camera, namely the scraping and washing plate is hidden in the scraping and washing window, the second operating rod is rotated to enable the blocking plate to be compressed and cover the scraping and washing window, and at the moment, the scraping and washing pipe body is the maximum diameter; at the moment, the sealing baffle is stretched into a marrow cavity to reach a focus position, the second operating rod is rotated to prop open the sealing baffle, the sealing baffle is enabled to be in contact with and tightly pressed against the inner wall of the marrow cavity, then the first operating rod is pushed and pulled in a reciprocating mode to enable the scraping and washing plate to swing in a reciprocating mode to scrape the focus, the scraped focus slag falls into a collecting tank formed by the scraping and washing plate and the sealing baffle, the upper end of the scraping and washing pipe body is connected with a water source through a water pipe connector while the focus is scraped, the suction channel is connected with a dust collector through a dust collector connector, the water injection channel continuously supplies water to wash the focus, the focus on the scraping and washing plate can be washed into the collecting tank formed by the sealing baffle, then the dust collector sucks away the focus slag in the collecting tank through the suction channel, the focus slag is prevented from splashing to other positions of the marrow cavity, and secondary damage is avoided.
Compared with the prior art, the invention has the beneficial effects that: 1. the scraping and washing device is convenient for observing the position of a focus in a medullary cavity and scraping whether the focus is completely scraped; 2. because narrow structure in the middle of the marrow cavity both sides are wide, prior art stretches into the marrow cavity, is difficult for the swing, consequently can not scrape some focuses, and this scraping and washing device is convenient for stretch into to the marrow cavity, the scraping and washing board can stretch out the scraping and washing window, scrapes the position that current instrument can not scrape. 3. The focus slag is convenient to wash, collect and attract.
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, 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 the drawings without creative efforts.
FIG. 1 is a front view structural diagram of the present invention;
FIG. 2 is a diagram of the initial state of the present invention;
FIG. 3 is a structural view of a lesion scraping status according to the present invention;
fig. 4 is a structural view of a squeegee of the invention.
The reference numerals are explained below:
1. scraping and washing the pipe body; 1a, a central partition plate; 1b, an eccentric partition plate; 1c, a suction channel; 1d, a water injection channel; 1e, a camera channel; 2. a guide end; 3. a first operating lever; 4. a second operating lever; 5. sealing a baffle plate; 6. scraping and washing the plate; 7. a baffle; 8. scraping and washing the window; 8a, an arc lip sheet; 8b, an inclined plane; 8c, friction ridges; 8d, hollowing out holes; 9. a camera; 10. a draw bar; 11. moving the mass.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Referring to fig. 1-4, the invention provides a scraping and washing device for a medullary cavity focus, which comprises a scraping and washing tube body 1, a first operating rod 3 and a second operating rod 4, wherein a guide end 2 is connected to the lower part of the scraping and washing tube body 1, the guide end 2 is beneficial for the scraping and washing device to enter the medullary cavity, and the medullary cavity is prevented from being injured in the process of extending into the medullary cavity. The scraping and washing pipe body 1 is provided with a scraping and washing window 8 close to the guide end 2, and the scraping and washing window 8 is a notch formed in the scraping and washing pipe body 1 close to the guide end 2; scrape and wash and be equipped with central baffle 1a in this body 1 and equally divide into first cavity and second cavity with inside cavity, just central baffle 1a with the interval has between leading end 2, central baffle 1a with scrape and wash a body 1 integrated into one piece. First cavity is connected aspirator and first cavity and is formed and attract passageway 1c, be equipped with eccentric baffle 1b in the second cavity and divide into water injection passageway 1d and passageway 1e of making a video recording with it, the space that attracts passageway 1c is greater than water injection passageway 1d, water injection passageway 1 d's space is greater than passageway 1e of making a video recording, and this structure is convenient for attract passageway 1c can be smooth and easy to inhale away the focus sediment, and passageway 1e of making a video recording only wears out the passageway 1e of making a video recording by the connecting wire of camera 9 can, the visual terminal is connected to the connecting wire, is convenient for gather marrow intracavity focus position through camera 9, still is convenient for observe whether the focus strikes off totally.
The length of the eccentric partition board 1b is smaller than that of the central partition board 1a, the water injection channel 1d is connected with a water source, and the end of the camera shooting channel 1e is provided with a camera 9 with a lens obliquely arranged, and the inclination angle is 45-60 degrees. The first operating rod 3 extends into the water injection channel 1d and extends to the scraping and washing window 8 to be hinged with the scraping and washing plate 6, the bottom of the scraping and washing plate 6 is hinged with the end part of the central partition plate 1a, the scraping and washing plate 6 is pushed and pulled through the first operating rod 3, the scraping and washing plate 6 and the camera 9 are just attached when in contact, and the scraping and washing plate 6 can extend out of the scraping and washing window 8 to scrape the focus on the inner wall of the medullary cavity by reciprocating pushing and pulling. During the use, camera 9 slope sets up the focus that is convenient for observe on the marrow intracavity wall, and at the in-process that this scraping device got into the marrow chamber, scraping plate 6 and camera 9 main part contact both laminate just, and this structure can make the diameter of scraping device maximum width for scraping and washing pipe main part this moment, is convenient for pass through the narrowest position in the marrow chamber (refer to fig. 2 and show).
The second operating rod 4 is a threaded rod, the threaded rod is in threaded connection with a suction apparatus connector at the outer end of the suction channel 1c, the second operating rod 4 extends into the suction channel 1c to be close to the guide end 2, and the inner wall of the suction channel 1c is connected with an elastic sealing baffle plate 5; a moving block 11 is in threaded connection with the end part, close to the second operating rod 4, of the second operating rod, the moving block 11 is connected with the blocking plate 5 through a traction rod 10, and two ends of the traction rod 10 are hinged to the moving block 11 and the blocking plate 5 respectively; the second operating rod 4 is rotated, the moving block 11 can move along the second operating rod 4, the blocking plate 5 is driven to be spread through the traction rod 10 to be attached to the inner wall of the marrow cavity, and when the blocking plate 5 is spread to be attached to the inner wall of the marrow cavity, the scraping and washing plate 6 scrapes focuses back and forth and collects the focuses in a collecting tank formed by the blocking plate 5.
As an important technical solution of the present application, which is a further solution of the present embodiment, a baffle 7 is further obliquely disposed at a position of the central partition board 1a close to the scraping and washing plate 6, the baffle 7 has certain elasticity, and an included angle between the baffle 7 and the central partition board 1a is 50 ° to 70 °; and a gap is reserved between the end part of the eccentric partition plate 1b and the guide plate 7. The first operating rod 3 slides through a deflector 7, and the width of the deflector 7 is smaller than that of the scraping plate 6. Firstly, guide plate 7 has certain elasticity, is favorable to initial position to scrape washing plate 6 and the laminating of passageway 1e of making a video recording, and secondly, guide plate 7 has certain elasticity, splash of splash when can reducing the water injection. Further, when using, the water that water injection passageway 1d injected into, partly block by guide plate 7 and to spray to the position of camera 9, the focus of avoiding scraping and washing 6 and scraping splashes to causing the camera to make a video recording on camera 9 unclear, and can wash these rivers to the inner wall in marrow cavity, another part of water sprays to scraping and washing 6 from the both sides of guide plate 7 and can wash the focus sediment on scraping and washing 6 to the collecting vat that the closure plate 5 formed in, then can be fast with focus sediment suction through attracting passageway 1c, can avoid the focus sediment to fly in marrow cavity, cause the secondary damage to the patient. And because the scraping and washing plate 6 can swing, when a large amount of water is needed to wash the inner wall of the medullary cavity, the scraping and washing plate 6 is pulled to form an acute angle with the central clapboard 1a, water in the water injection channel 1d can be sprayed onto the inner wall of the medullary cavity in a large amount, when the scraping and washing plate 6 needs to be washed, the scraping and washing plate 6 can be pushed to form an obtuse angle with the central clapboard 1a, focus residues on the scraping and washing plate 6 can be quickly washed onto the blocking plate 5, and the use is convenient (refer to fig. 1).
Furthermore, the scraping and washing plate 6 is made of a steel plate, the part contacting with the inner wall of the marrow cavity is an arc lip 8a, two sides of the arc lip 8a are provided with inclined planes 8b, and the inclined planes 8b are provided with a plurality of friction ridges 8c vertical to the direction of the scraping range. The structure can improve the contact surface of the scraping plate 6 and the focus, thereby improving the efficiency and the quality of scraping the focus.
Referring to fig. 4, a plurality of hollow holes 8d for discharging bone fragments are uniformly formed in the scraping plate, the hollow holes 8d are circular or strip-shaped holes, and the structure of the hollow holes 8d is convenient for focus residues to pass through the hollow holes 8d and be discharged onto the sealing plate 5 when focus is scraped.
Specifically, the blocking plate 5 is an arc-shaped elastic sheet, the end part of the arc-shaped elastic sheet is hinged with the inner wall of the suction channel 1c, and when the arc-shaped elastic sheet is unfolded to contact with the inner wall of the marrow cavity, the arc-shaped elastic sheet forms a concave arc-shaped bone fragment collecting tank which is communicated with the suction channel 1 c; and when the arc-shaped elastic sheet contracts, the arc-shaped elastic sheet can cover the scraping and washing window 8, so that a large amount of focus residues can be collected in the collecting groove, and the suction channel 1c can suck away the focus residues quickly. The width of the baffle 5 is equal to the width of the wiping window 8.
The guide end 2 is conical, and the head of the guide end 2 is arc-shaped. Furthermore, in order to facilitate scraping of the focus at the bottom of the medullary cavity, the outer surface of the guide end 2 is provided with a plurality of scraping ridges with the same direction as the conical generatrix, so that the focus at the bottom of the medullary cavity can be effectively scraped.
By adopting the technical scheme, in an initial state, the first operating rod 3 is pulled to enable the scraping and washing plate 6 to contact the position of the camera 9, namely the scraping and washing plate 6 is hidden in the scraping and washing window 8, the second operating rod 4 is rotated to enable the baffle 5 to be compressed and cover the scraping and washing window 8, and at this time, the scraping and washing pipe body 1 is the maximum diameter; at the moment, the bone marrow is stretched into a bone marrow cavity to reach a focus position, the second operating rod 4 is rotated to prop open the sealing baffle 5, the sealing baffle 5 is in contact with and tightly pressed against the inner wall of the bone marrow cavity, then the first operating rod 3 is pushed and pulled in a reciprocating manner to enable the scraping plate 6 to swing in a reciprocating manner to scrape the focus, the scraped focus slag falls into a collecting tank formed by the scraping plate 6 and the sealing baffle 5, the upper end of the scraping and washing pipe body 1 is connected with a water source through a water pipe connector while the focus is scraped, the suction channel 1c is connected with a dust collector through a dust collector connector, the water injection channel 1d continuously supplies water to wash the focus, the focus on the scraping and washing plate 6 can be washed into the collecting tank formed by the sealing baffle 5, then the dust collector sucks the focus slag in the collecting tank through the suction channel 1c, and avoids the focus slag from splashing to other positions of the bone marrow cavity, thereby avoiding causing secondary damage.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (6)
1. Pulp cavity focus scraping device which characterized in that: the scraping and washing pipe comprises a scraping and washing pipe body, a first operating rod and a second operating rod, wherein a guide end is connected to the lower part of the scraping and washing pipe body, and a scraping and washing window is formed in the scraping and washing pipe body close to the guide end; a central partition plate is arranged in the scraping and washing pipe body to divide an inner cavity into a first cavity and a second cavity, and a space is formed between the central partition plate and the guide end; the first cavity is connected with an aspirator and forms an attraction channel, an eccentric partition plate is arranged in the second cavity and divides the second cavity into a water injection channel and a camera shooting channel, the length of the eccentric partition plate is smaller than that of the central partition plate, the water injection channel is connected with a water source, and a camera with an inclined lens is arranged at the end part of the camera shooting channel;
the first operating rod extends into the water injection channel and extends to the scraping window to be hinged with the scraping plate, the bottom of the scraping plate is hinged with the end part of the central partition plate, the scraping plate is pushed and pulled through the first operating rod, the scraping plate and the camera main body are just attached when the scraping plate is pulled to be in contact with the camera main body, and the scraping plate can extend out of the scraping window to scrape the focus on the inner wall of the medullary cavity by pulling and pushing the scraping plate in a reciprocating mode;
the second operating rod is a threaded rod, the threaded rod is in threaded connection with the suction device connector at the outer end of the suction channel, the second operating rod extends into the suction channel to be close to the guide end, and the inner wall of the suction channel is connected with an elastic sealing baffle plate; a moving block is in threaded connection with the end part, close to the second operating rod, of the second operating rod, the moving block is connected with the blocking plate through a traction rod, and two ends of the traction rod are hinged with the moving block and the blocking plate respectively; the second operating rod is rotated, and the moving block can move along the second operating rod to drive the blocking plate to be spread and attached to the inner wall of the medullary cavity through the traction rod;
a guide plate is also obliquely arranged at the position, close to the scraping and washing plate, of the central partition plate, and the included angle between the guide plate and the central partition plate is 50-70 degrees; a gap is formed between the end part of the eccentric clapboard and the guide plate; the first operating rod penetrates through the guide plate in a sliding mode, and the width of the guide plate is smaller than that of the scraping plate;
the scraping and washing plate is made of a steel plate, the part contacting with the inner wall of the marrow cavity is an arc lip, inclined planes are arranged on two sides of the arc lip, and a plurality of friction ridges vertical to the direction of the scraping stove are arranged on the inclined planes.
2. The intramedullary canal lesion scraping device of claim 1, wherein: a plurality of hollowed-out holes for discharging bone chips are uniformly formed in the scraping and washing plate;
the hollow holes are circular or strip-shaped holes.
3. The intramedullary canal lesion scraping device of claim 1, wherein: the sealing baffle is an arc-shaped elastic sheet, and when the arc-shaped elastic sheet is unfolded and contacts with the inner wall of the marrow cavity, the arc-shaped elastic sheet forms an arc-shaped bone fragment collecting tank which is communicated with the suction channel;
and when the arc-shaped elastic sheet is contracted, the arc-shaped elastic sheet can cover the scraping and washing window.
4. The intramedullary canal lesion scraping device of claim 3, wherein: the width of the sealing baffle plate is equal to that of the scraping and washing window.
5. The intramedullary canal lesion scraping device of claim 1, wherein: the guide end is conical, and the head of the guide end is arc-shaped.
6. The intramedullary canal lesion scraping device of claim 1, wherein: the outer surface of the guide end is provided with a plurality of scraping ridges, and the length directions of the scraping ridges are consistent with the direction of the conical bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110003394.6A CN112617964B (en) | 2021-01-04 | 2021-01-04 | Medullary cavity focus scraping and washing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110003394.6A CN112617964B (en) | 2021-01-04 | 2021-01-04 | Medullary cavity focus scraping and washing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112617964A CN112617964A (en) | 2021-04-09 |
| CN112617964B true CN112617964B (en) | 2021-10-08 |
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|---|---|---|---|
| CN202110003394.6A Expired - Fee Related CN112617964B (en) | 2021-01-04 | 2021-01-04 | Medullary cavity focus scraping and washing device |
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| EP3698737A1 (en) * | 2019-02-22 | 2020-08-26 | Gyrus ACMI, Inc. D.B.A. Olympus Surgical Technologies America | Reciprocating surgical shaver |
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| US10631890B2 (en) * | 2017-10-27 | 2020-04-28 | Acclarent, Inc. | Tissue shaving instrument |
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2021
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| CN112617964A (en) | 2021-04-09 |
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