CN112617964B - Medullary cavity focus scraping and washing device - Google Patents

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

Medullary cavity focus scraping and washing device

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 andwashing tube body 1, afirst operating rod 3 and a second operating rod 4, wherein aguide end 2 is connected to the lower part of the scraping andwashing tube body 1, theguide 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 andwashing pipe body 1 is provided with a scraping and washing window 8 close to theguide end 2, and the scraping and washing window 8 is a notch formed in the scraping andwashing pipe body 1 close to theguide end 2; scrape and wash and be equipped with central baffle 1a in thisbody 1 and equally divide into first cavity and second cavity with inside cavity, just central baffle 1a with the interval has between leadingend 2, central baffle 1a with scrape and wash abody 1 integrated into one piece. First cavity is connected aspirator and first cavity and is formed and attractpassageway 1c, be equipped witheccentric baffle 1b in the second cavity and divide intowater injection passageway 1d and passageway 1e of making a video recording with it, the space that attractspassageway 1c is greater thanwater 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 attractpassageway 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 ofcamera 9 can, the visual terminal is connected to the connecting wire, is convenient for gather marrow intracavity focus position throughcamera 9, still is convenient for observe whether the focus strikes off totally.

The length of theeccentric partition board 1b is smaller than that of the central partition board 1a, thewater injection channel 1d is connected with a water source, and the end of the camera shooting channel 1e is provided with acamera 9 with a lens obliquely arranged, and the inclination angle is 45-60 degrees. Thefirst operating rod 3 extends into thewater injection channel 1d and extends to the scraping and washing window 8 to be hinged with the scraping andwashing plate 6, the bottom of the scraping andwashing plate 6 is hinged with the end part of the central partition plate 1a, the scraping andwashing plate 6 is pushed and pulled through thefirst operating rod 3, the scraping andwashing plate 6 and thecamera 9 are just attached when in contact, and the scraping andwashing 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 andcamera 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 thesuction channel 1c, the second operating rod 4 extends into thesuction channel 1c to be close to theguide end 2, and the inner wall of thesuction channel 1c is connected with an elasticsealing baffle plate 5; a movingblock 11 is in threaded connection with the end part, close to the second operating rod 4, of the second operating rod, themoving block 11 is connected with theblocking plate 5 through atraction rod 10, and two ends of thetraction rod 10 are hinged to the movingblock 11 and theblocking plate 5 respectively; the second operating rod 4 is rotated, the movingblock 11 can move along the second operating rod 4, theblocking plate 5 is driven to be spread through thetraction rod 10 to be attached to the inner wall of the marrow cavity, and when theblocking plate 5 is spread to be attached to the inner wall of the marrow cavity, the scraping andwashing plate 6 scrapes focuses back and forth and collects the focuses in a collecting tank formed by theblocking plate 5.

As an important technical solution of the present application, which is a further solution of the present embodiment, abaffle 7 is further obliquely disposed at a position of the central partition board 1a close to the scraping andwashing plate 6, thebaffle 7 has certain elasticity, and an included angle between thebaffle 7 and the central partition board 1a is 50 ° to 70 °; and a gap is reserved between the end part of theeccentric partition plate 1b and theguide plate 7. Thefirst operating rod 3 slides through adeflector 7, and the width of thedeflector 7 is smaller than that of thescraping plate 6. Firstly,guide plate 7 has certain elasticity, is favorable to initial position to scrapewashing 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 thatwater injection passageway 1d injected into, partly block byguide plate 7 and to spray to the position ofcamera 9, the focus of avoiding scraping and washing 6 and scraping splashes to causing the camera to make a video recording oncamera 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 ofguide plate 7 and can wash the focus sediment on scraping and washing 6 to the collecting vat that theclosure plate 5 formed in, then can be fast with focus sediment suction through attractingpassageway 1c, can avoid the focus sediment to fly in marrow cavity, cause the secondary damage to the patient. And because the scraping andwashing plate 6 can swing, when a large amount of water is needed to wash the inner wall of the medullary cavity, the scraping andwashing plate 6 is pulled to form an acute angle with the central clapboard 1a, water in thewater injection channel 1d can be sprayed onto the inner wall of the medullary cavity in a large amount, when the scraping andwashing plate 6 needs to be washed, the scraping andwashing plate 6 can be pushed to form an obtuse angle with the central clapboard 1a, focus residues on the scraping andwashing plate 6 can be quickly washed onto the blockingplate 5, and the use is convenient (refer to fig. 1).

Furthermore, the scraping andwashing plate 6 is made of a steel plate, the part contacting with the inner wall of the marrow cavity is anarc lip 8a, two sides of thearc lip 8a are provided withinclined planes 8b, and theinclined planes 8b are provided with a plurality offriction ridges 8c vertical to the direction of the scraping range. The structure can improve the contact surface of thescraping plate 6 and the focus, thereby improving the efficiency and the quality of scraping the focus.

Referring to fig. 4, a plurality ofhollow holes 8d for discharging bone fragments are uniformly formed in the scraping plate, thehollow holes 8d are circular or strip-shaped holes, and the structure of thehollow holes 8d is convenient for focus residues to pass through thehollow holes 8d and be discharged onto the sealingplate 5 when focus is scraped.

Specifically, the blockingplate 5 is an arc-shaped elastic sheet, the end part of the arc-shaped elastic sheet is hinged with the inner wall of thesuction 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 thesuction 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 thesuction channel 1c can suck away the focus residues quickly. The width of thebaffle 5 is equal to the width of the wiping window 8.

Theguide end 2 is conical, and the head of theguide 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 theguide 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.

Images