CN213098140U - Orthopedic sawtooth curette capable of being connected with aspirator - Google Patents

Abstract

The utility model relates to an orthopedics sawtooth curet that can connect aspirator, including the curet handle that connects gradually, curet pole and curet head constitute whole curet, characterized by: the integral curette is characterized in that a hollow pipeline is arranged in the center of the integral curette, an aspirator connector is fixedly connected to the top end of the curette handle and communicated with the hollow pipeline, the front end of the curette rod and the curette head are arranged at an angle, and sawteeth are arranged at the front end of the curette head. Has the advantages that: the utility model can design multi-size and multi-angle sawtooth-shaped curettage spoon heads, can go deep into the gap and increase the holding force for occlusion on the tissue, and realizes the clinical cleaning of tissues between bone gaps or deep embedded tissues, such as dead bones; overcomes the defect that the prior osteotome or the no-sawtooth curette has excessive or insufficient cleaning, and increases the function of 'micro fracture' of the sclerotic bone bed. The utility model discloses the suction apparatus can be connected more does benefit to and exposes the clearance art field, and safe high efficiency is operated.

Description

Orthopedic sawtooth curette capable of being connected with aspirator

Technical Field

The utility model belongs to the technical field of medical auxiliary instrument, especially, relate to an orthopedics sawtooth curet that can connect aspirator.

Background

The orthopedic operation curet can be used for cleaning bone surfaces, achieves the purpose of reasonably exposing fresh and rich blood for bone beds, particularly for cleaning infectious bone defects, not only can be used for cleaning focus tissues such as necrotic granulation, dead bones, fibrous scars and the like attached to the surfaces of bones and gaps between trabecular bone trabeculae of cancellous bones so as to expose the rich blood for bone beds, but also can be used for reducing excessive excision of normal bone as much as possible, reducing the defect volume and being beneficial to bone grafting or healing of self bone. At present, a bone knife or a curette (a common curette without sawteeth) is used in the bone infection cleaning operation, the bone knife is used for cleaning the bone surface under direct vision, but the protection to the bone is insufficient, normal bone is often lost, the defect is enlarged, the bone grafting amount and the blood supply reconstruction risk are increased, even the bone mechanics reconstruction is difficult, the curet can reduce the loss of the normal bone and can be used for cleaning under direct vision or non-direct vision, but the curet cleaning often causes the lesion residue, for infectious bone defects with uneven bone surface, multiple sinus tracts and deep embedded and bonded dead bones, especially under the condition of difficult direct vision, difficult cleaning, difficult cleaning of the bone due to blood deficiency and sclerosis on the inner wall of the focus, and unfavorable bone healing, meanwhile, when the bone defect is small, the operation space is insufficient, and the seepage is more, the space of the curet matched with the independent aspirator is insufficient, the visual field is blocked, the surgical field exposure is not facilitated, the focus cleaning is difficult to be thorough, and the risk of damaging surrounding important tissues is increased. The patent document with the publication number of CN204951068U discloses an orthopedic surgical instrument, which comprises a spoon handle, a spoon rod and a spoon head, wherein the spoon rod is provided with a camber between 120 degrees and 135 degrees; the bottom of the spoon head is provided with a liquid guide port, the spoon rod is internally provided with a liquid guide pipe, the spoon handle is internally provided with a liquid storage device, the liquid guide port is communicated with the liquid storage device through the liquid guide pipe, the liquid storage device is communicated with an air suction device outside the spoon handle through a liquid discharge pipe, and a filter screen is arranged at the joint of the liquid storage device and the liquid discharge pipe; the spoon head is sequentially provided with a plane scraping edge, a small sawtooth-shaped scraping edge and a large sawtooth-shaped scraping edge; the back of the spoon head is provided with a bone file. The orthopedic surgical instrument has the advantages that the spoon head is provided with three layers of different scraping edges, the tissue with different properties can be scraped, the scraping force is concentrated, and the scraping is thorough. Patent document No. CN205054348U discloses an orthopedic curette, which comprises a circular-edge spoon head, a first spoon rod, a square-edge spoon head, a second spoon rod, a handle, a collection tank and an air suction device; the handle is internally provided with a cavity, the side wall of the handle is provided with an opening, and the cavity is sequentially connected with the collecting tank and the air suction device through a hose inserted in the opening; one end of the handle is connected with the spoon head with the circular cutting edge through a first spoon rod, and the other end of the handle is connected with the spoon head with the square cutting edge through a second spoon rod; the bottom of the spoon head with the circular cutting edge is provided with a first air guide port, a first air guide pipe is arranged in the first spoon rod, one end of the first air guide pipe is communicated with the first air guide port, and the other end of the first air guide pipe is communicated with a cavity in the handle; the bottom of the square-edge spoon head is provided with a second air guide port, a second spoon rod is internally provided with a second air guide tube, one end of the second air guide tube is communicated with the second air guide port, and the other end of the second air guide tube is communicated with the cavity in the handle. The prior art is applied to the treatment of cervical and lumbar degenerative disc, end plate and nucleus pulposus, and can not be used for the treatment of 'micro fracture' of infectious bone defect sclerosis bone bed, the clearance cleaning of trabecular bone and the stripping and taking out of deeply-buried dead bones. Meanwhile, the sawteeth of the patent are positioned at the side edge of the head of the curette (the other edge is the bone contusion), are not the head end, are extended into the lacuna to easily cut the surrounding tissues, are unsafe and not beneficial to separating dead bones, do not accord with the mechanical characteristics of human bodies when used for carrying out 'micro fracture' and trabecular bone cleaning on a sclerotic bone bed, and are difficult to use; the suction channel is not designed in a straight line, and the cleaning of the poker is difficult to apply when blockage occurs. Patent document No. CN206044683U discloses a flushable curette for orthopedics department, which comprises a surgical handle (1) and a flushing channel (3), and is characterized in that: the left side edge of the operation handle (1) is embedded with a hose connector (2), the right side of the operation handle (1) is provided with a loop bar (5), an embedded rod (10) is arranged in the loop bar (5), a bent rod (9) is arranged at the right side of the embedded rod (10), a curette head (8) is arranged at the right side of the curved bar (9), a small-tooth curette head (7) is arranged at the position close to the upper part on the curette head (8), and a large-tooth scraping head (12) is arranged on the scraping spoon head (8) near the bottom, a flushing opening (11) is arranged between the small-tooth scraping head (7) and the large-tooth scraping head (12), the flushing channel (3) is embedded and arranged in the operation handle (1), the loop bar (5), the embedded bar (10) and the bent bar (9), the flushing channel (3) is in threaded connection with an external flushing hose through a hose connector (2). This patented technique can be used for osteoarticular necrosis, but is not suitable for infectious bone defects. Is not a correct scraping and cleaning mode for infectious bone defects, is difficult to enter cavities and sinuses, and has rare clinical application situations.

Therefore, there is a need to provide a device that can completely remove the focal tissue, expose the bone rich in blood and reduce the loss of normal bone.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art, and provides an orthopaedics sawtooth curet which is used in infectious bone defect cleaning operation and can be connected with an aspirator, which can go deep into the gap and increase the holding force of the occlusion to the bone tissue, can clean the tissue between the bone gap as far as possible, and increases the function of 'micro fracture' of the sclerotic bone bed.

The utility model discloses a realize above-mentioned purpose, realize through following technical scheme that an orthopedics sawtooth curette that can connect aspirator, including the curette handle that connects gradually, curette pole and curette head constitute whole curette, characterized by: the integral curette is characterized in that a hollow pipeline is arranged in the center of the integral curette, an aspirator connector is fixedly connected to the top end of the curette handle and communicated with the hollow pipeline, the front end of the curette rod and the curette head are arranged at an angle, and sawteeth are arranged at the front end of the curette head.

The included angle between the central axis of the curette head and the central axis of the curette rod is 0-90 degrees.

The tooth top of the sawtooth at the front end of the scraper head is spherical, and the diameter of the sphere is 0.1-0.2 mm.

The upper end of the hollow pipeline is communicated with the aspirator connector, the lower end of the hollow pipeline penetrates through the bottom of the curette head, the hollow pipeline is linearly connected with the center of the whole curette, and the hollow pipeline is crescent in shape at the bottom of the curette head.

The integral curet is made of integrated metal or the curet handle and the curet rod are made of wood or high polymer materials, and the curet head is in threaded connection with the curet rod.

Has the advantages that: compared with the prior art, the utility model can design multi-size and multi-angle sawtooth-shaped curette heads, can go deep into gaps and increase the holding force for occlusion on tissues, and realizes clinical cleaning of tissues between bone gaps or deep embedded tissues, such as dead bones; the side edge of the curette head is not provided with sawteeth, so that the risk of damaging surrounding tissues is reduced, the sawteeth at the curette head can safely penetrate into the periphery of a dead bone, the periphery of the dead bone is cut, and the dead bone is stripped and then extruded and taken out; meanwhile, the sawteeth can carry out point-like 'micro-fracture' treatment on the bled blood supply sclerotic bone bed, so as to clean the bled blood supply bone, expose the rich blood supply bone bed and reduce the loss of normal bone. In a word, the defect that the existing osteotome or the non-sawtooth curette is excessively cleaned or insufficiently cleaned is overcome, and the function of 'microfracture' of the sclerotic bone bed is increased. The utility model discloses the suction apparatus can be connected more does benefit to and exposes the clearance art field, and safe high efficiency is operated.

Drawings

FIG. 1 is a schematic structural section of the present invention;

FIG. 2 is a left side view of FIG. 1;

FIG. 3 is an enlarged fragmentary view of the serrations of the spoon head of FIG. 1;

fig. 4 is a cross-sectional shape view of the central tube at the bottom of the curette head.

In the figure: 1. the curette comprises a curette handle, 2, a curette rod, 3, a curette head, 4, a hollow pipeline, 5, an aspirator connector, 6, sawteeth, 7 and a crescent cross section of the hollow pipeline.

Detailed Description

The following detailed description of the embodiments according to the present invention with reference to the preferred embodiments is as follows: turning to the drawings in detail, the embodiment provides an orthopedics sawtooth curette capable of being connected with an aspirator, which comprises a curette handle 1, a curette rod 2 and a curette head 3 which are connected in sequence to form the whole curette, a hollow pipeline 4 is arranged at the center of the whole curette, an aspirator connector 5 is fixedly connected to the top end of the curette handle, the aspirator connector is communicated with the hollow pipeline, the front end of the curette rod and the curette head are arranged at an angle, an included angle between the central axis of the curette head and the central axis of the curette rod is 0-90 degrees, and the embodiment selects 30 degrees. The connection design of various angles is beneficial to the detection of irregular bone defects and the interior of the sinus. The front end of the curette head is provided with saw teeth 6. The sawteeth are only arranged on the side edge of the curette head at the front end of the curette head and have no design of sawteeth, so that the risk of damaging surrounding tissues is reduced, the sawteeth at the curette head end can safely go deep into the periphery of a dead bone, the periphery of the dead bone is cut by adhesion, and the dead bone is peeled off and then extruded and taken out; the whole curet is made of integrated metal and is of an integral structure, or the curet handle and the curet rod are made of wood or high polymer materials, the curet handle 1 and the curet rod 2 are made of wood or high polymer materials, the curet head and the curet rod are in threaded connection, and meanwhile, the curet heads with different specifications and shapes can be more conveniently installed.

The preferred scheme of the embodiment is that the tooth crest shape of the sawtooth at the front end of the scraper head is spherical, and the diameter of the sphere is 0.1-0.2 mm. The spherical surface design of the sawtooth tip part is beneficial to scraping sclerotin and focus tissues between bone trabeculae, and avoids over sharp loss of sclerotin. The making process of integral curette belongs to conventional making process.

The preferred scheme of this embodiment is that the hollow pipeline upper end communicates with the aspirator connector, and its lower extreme link up in curette head bottom, and the hollow pipeline is linear connection in whole curette center, and the hollow pipeline shape in curette head bottom is crescent 7. The cross section of the hollow pipeline changes from a circular shape to a crescent shape, the head end of the pipeline needs to be eccentrically designed and an inclined surface is opened, so that space is provided for the serrated curette head, the size is reduced, and the curette can conveniently enter a narrow bone defect cavity; the hollow pipeline is designed linearly, so that negative pressure suction and metal poker cleaning pipelines are facilitated, and blockage is prevented.

Working process

1. Connecting the suction apparatus joint with a negative pressure suction apparatus through a suction apparatus pipeline hose according to a normal program;

2. the serrated curette head is controlled by holding the curette handle, according to the common operation and the operation habit of an operator, the curette head with the determined angle between the long axis of the curette head and the curette rod and the angle between the serrated axis and the axis of the curette head can be selected for standby use, focal tissues such as necrotic granulation, dead bone, fibrous scar and the like attached to the bone surface and the gap between cancellous bone trabeculae and embedded into the serrated curette head can be cleaned, the spherical surface of the serrated tip is designed, the diameter is 0.1-0.2mm and is basically smaller than or equal to the gap between the cancellous bone trabeculae, the scraping of the focal tissues between hardened bone and the cancellous bone trabeculae is facilitated, and the operation efficiency is improved;

3. the hardened bone is longitudinally extruded and cut on the surface, namely 'micro fracture', so that hardened bone fragments are generated, and then the hardened bone fragments are washed and cleaned; for dead bones embedded in tissues, the scraper head with the oval plane or the slight spherical surface can penetrate into gaps between the dead bones and surrounding tissues along the surface of the dead bones, the sawteeth at the end of the scraper head cut and separate the dead bones from the surrounding tissues in a sticking way, and meanwhile, the oval arc-shaped edge is designed to be smooth, so that the surrounding tissues are protected and the cutting is reduced; the saw teeth of the curette head can extrude and bite the dead bone, so that the holding capacity of the deep dead bone is increased, and the deep dead bone can be smoothly stripped;

4. when the operation space is insufficient and the seepage is more, the integrated negative pressure suction device can reduce the visual field shielding, is beneficial to the exposure of the operative field and reduces the operation time; when the negative pressure suction channel is blocked, a metal hard straight-through strip can be inserted from the opening at the head end of the joint 6 of the curette rod and the serrated curette head for repeated dredging.

5. The cross section of the whole body from the tail end to the head end is gradually reduced, so that the curette head can enter a narrow bone defect cavity more conveniently. Under the condition of invisible, the multi-angle design and the round design of the curette head are more beneficial to the safe and efficient completion operation of the curette.

The above detailed description of the orthopedic serrated curette with attached suction apparatus is illustrative and not restrictive, and several embodiments can be enumerated within the scope of the present disclosure, so that changes and modifications that do not depart from the spirit of the present disclosure are intended to be included within the scope of the present disclosure.

Claims (5)

1. The utility model provides an orthopedics sawtooth curet that can connect aspirator, includes that the curet handle, curet pole and the curet head that connect gradually constitute whole curet, characterized by: the integral curette is characterized in that a hollow pipeline is arranged in the center of the integral curette, an aspirator connector is fixedly connected to the top end of the curette handle and communicated with the hollow pipeline, the front end of the curette rod and the curette head are arranged at an angle, and sawteeth are arranged at the front end of the curette head.

2. The orthopedic sawtooth curette capable of being connected with an aspirator according to claim 1, which is characterized in that: the included angle between the central axis of the curette head and the central axis of the curette rod is 0-90 degrees.

3. An orthopaedic saw tooth curette connectable to an aspirator according to claim 1 or 2, wherein: the tooth top of the sawtooth at the front end of the scraper head is spherical, and the diameter of the sphere is 0.1-0.2 mm.

4. The orthopedic sawtooth curette capable of being connected with an aspirator according to claim 1, which is characterized in that: the upper end of the hollow pipeline is communicated with the aspirator connector, the lower end of the hollow pipeline penetrates through the bottom of the curette head, the hollow pipeline is linearly connected with the center of the whole curette, and the hollow pipeline is crescent in shape at the bottom of the curette head.

5. The orthopedic sawtooth curette capable of being connected with an aspirator according to claim 1, which is characterized in that: the integral curet is made of integrated metal or the curet handle and the curet rod are made of wood or high polymer materials, and the curet head is in threaded connection with the curet rod.

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