CN216455179U - Positioner is used in operation of microfracture - Google Patents
Positioner is used in operation of microfracture Download PDFInfo
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- CN216455179U CN216455179U CN202023218978.5U CN202023218978U CN216455179U CN 216455179 U CN216455179 U CN 216455179U CN 202023218978 U CN202023218978 U CN 202023218978U CN 216455179 U CN216455179 U CN 216455179U
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Abstract
The utility model provides a positioning device for microfracture surgery, which comprises a holding rod and a clamping ring arranged at one end of the holding rod, wherein a porous positioning plate is embedded in the clamping ring. The positioning device for the microfracture operation, provided by the utility model, needs to be matched with active equipment such as an electric drill and the like for use, is used for drilling, fixing, guiding or inserting and taking out an implant, and effectively solves the problems of positioning, orientation, depth control and the like of the electric drill through the porous positioning plate.
Description
Technical Field
The utility model belongs to the field of orthopedic surgery instruments, and relates to a positioning device for microfracture surgery.
Background
The common clinical injury of articular cartilage is sports injury, which is frequently seen in young people, while cartilage degeneration is frequently seen in old people. Cartilage tissues of joints cannot be automatically repaired, and if damaged cartilage is not treated in time, the damaged cartilage can spread to affect surrounding normal cartilage, and the damaged cartilage is continuously stressed and worn to finally develop into osteoarthritis. Arthritis is a degenerative joint disease with a very high incidence in the middle and old aged population, mainly affecting articular cartilage, bone and synovial tissue, resulting in joint pain, swelling, and deformity. The mild patient presents with joint pain and knee joint movement disorder, and the severe patient can cause joint deformity and disability, which causes great negative effects on the work and life of the patient.
Two existing treatment protocols include microfracture surgery and stem cell therapy, both to provide a source of cells to the site of cartilage damage.
Microfracture surgery is a technique commonly used to repair articular cartilage damage. At the site of the cartilage defect, the physician first removes the damaged or calcified cartilage in the joint and then drills a small hole in the subchondral bone, allowing a portion of the bone marrow and blood to seep out of the hole and form a blood clot. Such a blood clot contains stem cells, for example, multifunctional mesenchymal stem cells of human bone marrow, which exude from the lesion, and may generate a replacement tissue composed of fibrous tissue, fibrous cartilage, or hyaline cartilage to repair the lesion. The human body can treat the micro-fracture part as the body injury by itself, and therefore, the operation can provide a new and alternative cartilage for the patient. Human skeletal cartilage is hyaline cartilage, and microfractures do not truly repair damaged cartilage itself, but provide a substitute of similar properties.
During microfracture surgery, a small hole is drilled in the subchondral bone, allowing a portion of the bone marrow and blood to seep out of the hole and form a blood clot. In order to accurately locate the drilling position, other surgical instruments are required to be used with the electric drill to more quickly locate the drilling position and to assist in directional drilling.
CN111938746A discloses a drilling guider for wicresoft calcaneum coaptation art, including location base plate, connecting plate, locking bolt and drilling stand pipe, the shape of location base plate and the back outside plane shape phase-match of calcaneum and fix on this plane through the screw, be equipped with the guide pin locating hole on the location base plate, the connecting plate passes through locking bolt to be fixed on the location base plate, the drilling stand pipe is fixed in the connecting plate outside and its axis point to the guide pin locating hole on the location base plate and the year process of calcaneum, and the one end that the drilling stand pipe is close to the calcaneum passes the connecting plate and forms the location ka tai with the guide pin locating hole phase-match on the location base plate.
CN201263713 discloses a fracture operation repositor with aiming function, which has a rod body with one end made into a hook, the other end of the rod body is provided with a bone clamping hook for fixing the upper end of the rod body and an external thread section of an aiming device, the aiming device comprises a drill guide with one end sleeved on the external thread section of the rod body and a nut for locking the drill guide, one end of the drill guide is provided with a rod sleeve, the other end and the middle part are provided with a plurality of through holes for the drill to penetrate through, one end of the bone clamping hook is provided with a rod sleeve, and the other end is made into a hook shape opposite to the hook of the rod body.
CN100358477C discloses a protector for drilling a bone, which comprises a guide sleeve with a drill hole, wherein one end of the guide sleeve is connected with a C-shaped bone support handle, the front end of the C-shaped bone support handle is also used as a drill baffle corresponding to the central line of the drill hole, a drill falling groove is arranged on the drill baffle, a slide block is assembled in the guide sleeve, a return spring is arranged at the rear end of the slide block, and a toggle handle on the slide block is arranged in the slide groove of the guide sleeve.
In recent years, with the progress of 3D printing and digital medical technology, the substantive combination of 3D printing technology and medical clinical application is gradually developed, and the development of novel surgical instruments (aids) and personalized medical development inevitably promote the change of traditional medical equipment to adapt to novel medical modes. The digitization technology can provide technical support for the design of novel surgical instruments, and the 3D printing technology can convert virtual design into reality more directly and more quickly, so that the personalized requirements among different patients are met, the accuracy of the operation is ensured, and the method has great significance for clinical operations.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide a positioning device for microfracture surgery, which needs to be matched with active equipment such as an electric drill and the like for use in drilling, fixing, guiding or inserting and taking out implants, and effectively solves the problems of positioning, orientation, depth control and the like of the electric drill through a porous positioning plate.
In order to achieve the purpose, the utility model adopts the following technical scheme:
in a first aspect, the utility model provides a positioning device for microfracture surgery, which comprises a holding rod and a snap ring arranged at one end of the holding rod, wherein a porous positioning plate is embedded in the snap ring.
The positioning device for the microfracture operation, provided by the utility model, needs to be matched with active equipment such as an electric drill and the like for use, is used for drilling, fixing, guiding or inserting and taking out an implant, and effectively solves the problems of positioning, orientation, depth control and the like of the electric drill through the porous positioning plate. It should be noted that the positioning device provided by the present invention is optionally integrally formed by a 3D printing method or formed by forging or casting, and preferably formed by 3D printing.
As a preferable technical solution of the present invention, the snap ring is detachably disposed at one end of the holding rod.
In the utility model, the clamping ring is detachably connected with the holding rod in a plug-in or thread manner.
Positioner uses with the electric drill cooperation, and operating personnel grips the holding rod press close to the snap ring and treat the skeleton region of drilling, positioner is under the user state, and the inboard anchor ring of snap ring is the annular ladder face that the diameter gradient reduces from top to bottom.
As a preferable technical scheme, the inner side ring surface comprises three levels of vertical ring surfaces, the three levels of vertical ring surfaces are respectively marked as a first vertical ring surface, a second vertical ring surface and a third vertical ring surface from top to bottom, the diameters of the first vertical ring surface, the second vertical ring surface and the third vertical ring surface are sequentially reduced, and two adjacent levels of vertical ring surfaces are connected through a horizontal ring surface to form an annular step surface.
The diameter of the first vertical ring surface is 9-11 mm, for example, 9.0mm, 9.2mm, 9.4mm, 9.6mm, 9.8mm, 10mm, 10.2mm, 10.4mm, 10.6mm, 10.8mm or 11mm, but not limited to the values listed, and other values not listed in the range of values are also applicable.
The diameter of the second vertical ring surface is 8.5-10 mm, such as 8.5mm, 8.6mm, 8.7mm, 8.8mm, 8.9mm, 9.0mm, 9.1mm, 9.2mm, 9.3mm, 9.4mm, 9.5mm, 9.6mm, 9.7mm, 9.8mm, 9.9mm or 10mm, but not limited to the values listed, and other values not listed in the range of values are equally applicable.
The diameter of the third vertical ring surface is 8-10 mm, for example, 8.0mm, 8.2mm, 8.4mm, 8.6mm, 8.8mm, 9mm, 9.2mm, 9.4mm, 9.6mm, 9.8mm or 10mm, but not limited to the values listed, and other values not listed in the range of values are also applicable.
The diameters of the adjacent two-stage vertical ring surfaces are different by 0.1-1 mm, for example, 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm or 1mm, but not limited to the values listed, and other values not listed in the range of the values are also applicable.
The porous positioning plate is embedded into a circular space surrounded by the second vertical ring surface and is erected on a horizontal ring surface of the second vertical ring surface, which is in butt joint with the third vertical ring surface.
As a preferable technical scheme of the utility model, the through holes are distributed on the porous positioning plate.
The diameter of the through hole on the porous positioning plate is 0.5-2 mm, for example, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1.0mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm or 2.0mm, but not limited to the values listed, and other values not listed in the range of the values are also applicable.
The distance between the holes on the porous positioning plate is 1-3 mm, and may be, for example, 1.0mm, 1.2mm, 1.4mm, 1.6mm, 1.8mm, 1.9mm, 2.0mm, 2.2mm, 2.4mm, 2.6mm, 2.8mm or 3mm, but is not limited to the values listed, and other values not listed in the range of the values are also applicable.
In a preferred embodiment of the present invention, the axis of the holding rod and the cross section of the snap ring form an angle a, where a is 20 to 60 °, and may be, for example, 20 °, 25 °, 30 °, 35 °, 40 °, 45 °, 50 °, 55 °, or 60 °, but is not limited to the values listed above, and other values not listed above within the range of the values are also applicable.
In the positioning device provided by the utility model, the holding rod and the clamping ring are fixedly connected at a certain angle, preferably a fixed angle of 20-60 degrees is adopted, and the positioning device is more in line with human engineering in the range, more comfortable to operate and hold and better in use feeling. Aiming at surgeons who use the left hand, the 3D printing method can be realized by using mirror image printing when 3D printing forming is adopted.
As a preferable technical scheme of the utility model, the holding rod is divided into a holding section and a connecting section, and the clamping ring is fixed at one end of the connecting section, which is far away from the holding section.
The holding section is a straight rod with an elliptical section.
In the present invention, the gripping section is designed with an elliptical cross-section for the purpose of being easily gripped by an operator.
As a preferable technical scheme of the utility model, a plane which passes through the axis of the holding rod and forms an angle A with the cross section of the clamping ring is taken as a reference plane, and the cross section of the long axis of the ellipse of the holding section forms a certain angle with the reference plane.
The cross section of the long axis of the ellipse of the holding section is 30-60 degrees with the reference plane, for example, 30 degrees, 32 degrees, 34 degrees, 36 degrees, 38 degrees, 40 degrees, 42 degrees, 44 degrees, 46 degrees, 48 degrees, 50 degrees, 52 degrees, 54 degrees, 56 degrees, 58 degrees or 60 degrees, but the holding section is not limited to the listed values, and other values not listed in the numerical value range are also applicable.
In the utility model, the holding section with the elliptic section forms a certain angle with the reference plane, so that the phenomenon that the sight is shielded by hands of an operator to influence the operation is prevented when the operator holds the holding section; meanwhile, the holding comfort level is improved, and the device accords with human engineering. Furthermore, the design of the angular deviation can also be performed according to the dominant hand of the operator, such as: for an operator with right-handed hands, when designing the positioning device, the long axis direction of the elliptical section of the positioning device in the use state can be designed to be a descending direction from left to right so as to improve the holding comfort level; for an operator with a left-handed hand, when designing the positioning device, the long axis direction of the elliptical section of the positioning device in the use state can be designed to be a direction rising from left to right, so that the holding comfort level is improved. Generally speaking, the number of operators with right-handed hands is large, the conventional design is more suitable for surgeons with right-handed hands, and for surgeons with left-handed hands, the angle deviation can be changed by using mirror image printing when 3D printing forming is adopted.
As a preferable technical scheme of the utility model, the clamping ring is divided into a vertical section and a tapered section, and the peripheral ring surface of the vertical section is an equal-diameter ring surface.
The diameter of the peripheral ring surface of the reducing section is gradually reduced from top to bottom.
The snap ring is fixed on the peripheral ring surface of the vertical section.
As a preferred technical solution of the present invention, the gripping section is provided with a wing plate.
The wing plates are arranged to increase the contact area during holding, so that the moment is increased, the holding is convenient, the holding stability can be further improved, and the control is easier.
The wing plates are protruding structures formed by extending along the long axis direction of the elliptic section of the holding section.
The cross section of the wing plate is parallel to the section of the long axis of the ellipse of the holding section.
The wing plate is a flat thin plate with thick center and thin edge.
The wing plate is circular or elliptical.
In a preferred embodiment of the present invention, the wing plate has a circular shape, and the diameter of the wing plate is 20 to 40mm, for example, 20mm, 22mm, 24mm, 26mm, 28mm, 30mm, 32mm, 34mm, 36mm, 38mm or 40mm, but the utility model is not limited to the above-mentioned values, and other values not shown in the above-mentioned range are also applicable.
The thickness of the central portion of the wing plate is 2 to 5mm, and may be, for example, 2.0mm, 2.2mm, 2.4mm, 2.6mm, 2.8mm, 3.0mm, 3.2mm, 3.4mm, 3.6mm, 3.8mm, 4.0mm, 4.2mm, 4.4mm, 4.6mm, 4.8mm or 5.0mm, but is not limited to the values listed, and other values not listed in the range of the values are also applicable.
The use method of the positioning device provided by the utility model comprises the following steps: the positioning device is matched with an electric drill for use, an operator holds the holding rod, the clamping ring is pressed close to a bone area to be drilled, and the electric drill drills in the bone area through the through hole in the porous positioning plate.
Compared with the prior art, the utility model has the beneficial effects that:
the positioning device for the microfracture operation, provided by the utility model, needs to be matched with active equipment such as an electric drill and the like for use, is used for drilling, fixing, guiding or inserting and taking out an implant, and effectively solves the problems of positioning, orientation, depth control and the like of the electric drill through the porous positioning plate.
Drawings
FIG. 1 is a schematic structural diagram of a positioning device according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a positioning device according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a positioning device according to an embodiment of the present invention;
wherein, 1-snap ring; 2-holding the rod; 3-a holding section; 4-a connecting segment; 5-wing plate.
Detailed Description
It is to be understood that in the description of the present invention, the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be taken as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
It should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "connected" and "connected" are to be construed broadly, and may be, for example, 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 meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings.
In a specific embodiment, the utility model provides a positioning device for microfracture surgery, as shown in fig. 1, fig. 2 and fig. 3, the positioning device comprises a holding rod 2 and a clamping ring 1 detachably arranged at one end of the holding rod 2, optionally, the clamping ring 1 is detachably connected with the holding rod 2 in a plug-in or threaded manner, a porous positioning plate is embedded in the clamping ring 1, through holes are distributed on the porous positioning plate, the diameter of each through hole is 0.5-2 mm, the distance between the through holes is 1-3 mm, and the positioning device is made of stainless steel or nylon.
The positioning device is matched with an electric drill for use, an operator holds the holding rod 2, and the clamping ring 1 is attached to a bone area to be drilled. When the positioning device is in use, the annular surface of the inner side of the clamping ring 1 is an annular stepped surface with the diameter gradient reduced from top to bottom. Specifically, the inboard anchor ring includes tertiary vertical anchor ring, and first vertical anchor ring, second vertical anchor ring and third vertical anchor ring are marked as respectively from top to bottom to tertiary vertical anchor ring, and the diameter of first vertical anchor ring, second vertical anchor ring and third vertical anchor ring is steadilyd decrease in proper order, and adjacent two-stage vertical anchor ring meets through horizontal anchor ring and forms annular ladder face. Specifically, the diameter of the first vertical ring surface is 9-11 mm, the diameter of the second vertical ring surface is 8.5-10 mm, the diameter of the third vertical ring surface is 8-10 mm, and the diameter difference of the two adjacent vertical ring surfaces is 0.1-0.5 mm. The porous positioning plate is embedded into a circular space surrounded by the second vertical ring surface and is erected on a horizontal ring surface of the second vertical ring surface, which is in butt joint with the third vertical ring surface.
As shown in figure 1, an angle A is formed between the axis of the holding rod 2 and the cross section of the clamping ring 1, and the angle A is 20-60 degrees. The holding rod 2 is divided into a holding section 3 and a connecting section 4, a clamping ring 1 is fixed at one end of the connecting section 4 far away from the holding section 3, and the holding section 3 is a straight rod with an elliptical cross section. As shown in fig. 2 and 3, a plane passing through an angle A formed by the axis of the holding rod 2 and the cross section of the clamping ring 1 is taken as a reference plane, and the cross section of the long axis of the ellipse of the holding section 3 and the reference plane form 30-60 degrees. The holding section 3 is also provided with a wing plate 5, the wing plate 5 is a protruding structure formed by extending along the long axis direction of the elliptic section of the holding section 3, and the cross section of the wing plate 5 is parallel to the long axis section of the ellipse of the holding section 3. Further, the wing plate 5 is a circular or elliptical flat thin plate having a thick center and a thin edge, and when the wing plate 5 is circular, the diameter of the wing plate 5 is 20 to 40mm, and the thickness of the wing plate 5 at the center is 2 to 5 mm.
Snap ring 1 divide into vertical section and convergent section, and the periphery anchor ring of vertical section is the anchor ring of isodiametric, and the diameter of the periphery anchor ring of convergent section reduces gradually from top to bottom, and snap ring 1 is fixed in the periphery anchor ring department of vertical section.
Example 1
This embodiment provides a positioner for microfracture operation, positioner including holding pole 2 and can dismantling to set up in the snap ring 1 of holding pole 2 one end, snap ring 1 can dismantle with holding pole 2 through the plug-in and be connected, the porous locating plate of embedding in the snap ring 1, spread all over the through-hole on the porous locating plate, the through-hole diameter is 0.5mm, the hole interval is 1mm, positioner's material is the stainless steel.
The positioning device is matched with an electric drill for use, an operator holds the holding rod 2, and the clamping ring 1 is attached to a bone area to be drilled. Positioner is under the user state, the inboard anchor ring of snap ring 1 is the annular ladder face that the diameter gradient reduces from top to bottom, inboard anchor ring includes tertiary vertical anchor ring, tertiary vertical anchor ring is marked as first vertical anchor ring, the vertical anchor ring of second and third respectively from top to bottom, the diameter of first vertical anchor ring is 9mm, the diameter of the vertical anchor ring of second is 8.5mm, the diameter of the vertical anchor ring of third is 8mm, adjacent two-stage vertical anchor ring meets through horizontal anchor ring and forms annular ladder face. The porous positioning plate is embedded into a circular space surrounded by the second vertical ring surface and is erected on a horizontal ring surface of the second vertical ring surface, which is butted with the third vertical ring surface.
The axis of the holding rod 2 and the cross section of the snap ring 1 form a 20-degree angle. The holding rod 2 is divided into a holding section 3 and a connecting section 4, a clamping ring 1 is fixed at one end of the connecting section 4 far away from the holding section 3, and the holding section 3 is a straight rod with an elliptical cross section. The plane passing through the axis of the holding rod 2 and forming an angle of 20 degrees with the cross section of the clamping ring 1 is taken as a reference plane, and the cross section of the long axis of the ellipse of the holding section 3 forms an angle of 30 degrees with the reference plane. The holding section 3 is also provided with a wing plate 5, the wing plate 5 is a circular thin plate which is formed by extending along the long axis direction of the elliptical section of the holding section 3 and has a thick center and a thin edge, the diameter of the circular thin plate is 20mm, the thickness of the center of the wing plate 5 is 2mm, and the cross section of the wing plate 5 is parallel to the long axis section of the ellipse of the holding section 3.
Snap ring 1 divide into vertical section and convergent section, and the periphery anchor ring of vertical section is the anchor ring of isodiametric, and the diameter of the periphery anchor ring of convergent section reduces gradually from top to bottom, and snap ring 1 is fixed in the periphery anchor ring department of vertical section.
Example 2
This embodiment provides a positioner for microfracture operation, positioner including holding pole 2 and can dismantling to set up in the snap ring 1 of holding pole 2 one end, snap ring 1 can dismantle with holding pole 2 through the plug-in and be connected, the porous locating plate of embedding in the snap ring 1, spread all over the through-hole on the porous locating plate, the through-hole diameter is 0.7mm, the hole interval is 1.4mm, positioner's material is nylon.
The positioning device is matched with an electric drill for use, an operator holds the holding rod 2, and the clamping ring 1 is attached to a bone area to be drilled. Positioner is under the user state, the inboard anchor ring of snap ring 1 is the annular ladder face that the diameter gradient reduces from top to bottom, inboard anchor ring includes tertiary vertical anchor ring, tertiary vertical anchor ring is recorded into first vertical anchor ring respectively from top to bottom, the vertical anchor ring of second and third vertical anchor ring, the diameter of first vertical anchor ring is 9.5mm, the diameter of the vertical anchor ring of second is 9.4mm, the diameter of the vertical anchor ring of third is 9.3mm, adjacent two-stage vertical anchor ring meets through horizontal anchor ring and forms annular ladder face. The porous positioning plate is embedded into a circular space surrounded by the second vertical ring surface and is erected on a horizontal ring surface of the second vertical ring surface, which is in butt joint with the third vertical ring surface.
The axis of the holding rod 2 and the cross section of the snap ring 1 form an angle of 28 degrees. The holding rod 2 is divided into a holding section 3 and a connecting section 4, a clamping ring 1 is fixed at one end of the connecting section 4 far away from the holding section 3, and the holding section 3 is a straight rod with an elliptical cross section. The plane passing through the axis of the holding rod 2 and forming an angle of 25 degrees with the cross section of the clamping ring 1 is taken as a reference plane, and the cross section of the long axis of the ellipse of the holding section 3 forms an angle of 36 degrees with the reference plane. The holding section 3 is also provided with a wing plate 5, the wing plate 5 is a circular thin plate which is formed by extending along the long axis direction of the elliptic section of the holding section 3 and has a thick center and a thin edge, the diameter of the circular thin plate is 24mm, the thickness of the center of the wing plate 5 is 2.6mm, and the cross section of the wing plate 5 is parallel to the section of the elliptic long axis of the holding section 3.
Snap ring 1 divide into vertical section and convergent section, and the periphery anchor ring of vertical section is the anchor ring of isodiametric, and the diameter of the periphery anchor ring of convergent section reduces gradually from top to bottom, and snap ring 1 is fixed in the periphery anchor ring department of vertical section.
Example 3
This embodiment provides a positioner for microfracture operation, positioner including holding pole 2 and can dismantling to set up in the snap ring 1 of holding pole 2 one end, snap ring 1 can dismantle with holding pole 2 through the plug-in and be connected, the porous locating plate of embedding in the snap ring 1, spread all over the through-hole on the porous locating plate, the through-hole diameter is 1mm, the hole interval is 1.8mm, positioner's material is the stainless steel.
The positioning device is matched with an electric drill for use, an operator holds the holding rod 2, and the clamping ring 1 is attached to a bone area to be drilled. Positioner is under the user state, the inboard anchor ring of snap ring 1 is the annular ladder face that the diameter gradient reduces from top to bottom, inboard anchor ring includes tertiary vertical anchor ring, tertiary vertical anchor ring is marked as first vertical anchor ring from top to bottom respectively, the vertical anchor ring of second and third vertical anchor ring, the diameter of first vertical anchor ring is 10mm, the diameter of the vertical anchor ring of second is 9.8mm, the diameter of the vertical anchor ring of third is 9.6mm, adjacent two-stage vertical anchor ring meets through horizontal anchor ring and forms annular ladder face. The porous positioning plate is embedded into a circular space surrounded by the second vertical ring surface and is erected on a horizontal ring surface of the second vertical ring surface, which is in butt joint with the third vertical ring surface.
The axis of the holding rod 2 and the cross section of the snap ring 1 form 36 degrees. The holding rod 2 is divided into a holding section 3 and a connecting section 4, a clamping ring 1 is fixed at one end of the connecting section 4 far away from the holding section 3, and the holding section 3 is a straight rod with an elliptical cross section. The plane passing through the axis of the holding rod 2 and forming an angle of 30 degrees with the cross section of the clamping ring 1 is taken as a reference plane, and the cross section of the long axis of the ellipse of the holding section 3 and the reference plane are 42 degrees. The holding section 3 is also provided with a wing plate 5, the wing plate 5 is a circular thin plate which is formed by extending along the long axis direction of the elliptic section of the holding section 3 and has a thick center and a thin edge, the diameter of the circular thin plate is 28mm, the thickness of the center of the wing plate 5 is 3.2mm, and the cross section of the wing plate 5 is parallel to the section of the elliptic long axis of the holding section 3.
Snap ring 1 divide into vertical section and convergent section, and the periphery anchor ring of vertical section is the anchor ring of isodiametric, and the diameter of the periphery anchor ring of convergent section reduces gradually from top to bottom, and snap ring 1 is fixed in the periphery anchor ring department of vertical section.
Example 4
This embodiment provides a positioner for microfracture operation, positioner including holding pole 2 and can dismantling to set up in the snap ring 1 of holding pole 2 one end, snap ring 1 can dismantle with holding pole 2 through the plug-in and be connected, the porous locating plate of embedding in the snap ring 1 spreads all over the through-hole on the porous locating plate, the through-hole diameter is 1.5mm, the hole interval is 2.2mm, positioner's material is nylon.
The positioning device is matched with an electric drill for use, an operator holds the holding rod 2, and the clamping ring 1 is attached to a bone area to be drilled. Positioner is under the user state, the inboard anchor ring of snap ring 1 is the annular ladder face that the diameter gradient reduces from top to bottom, inboard anchor ring includes tertiary vertical anchor ring, tertiary vertical anchor ring is marked as first vertical anchor ring from top to bottom respectively, the vertical anchor ring of second and third vertical anchor ring, the diameter of first vertical anchor ring is 10.3mm, the diameter of the vertical anchor ring of second is 9.7mm, the diameter of the vertical anchor ring of third is 9.1mm, adjacent two-stage vertical anchor ring meets through horizontal anchor ring and forms annular ladder face. The porous positioning plate is embedded into a circular space surrounded by the second vertical ring surface and is erected on a horizontal ring surface of the second vertical ring surface, which is in butt joint with the third vertical ring surface.
The axis of the holding rod 2 and the cross section of the snap ring 1 form a 44 degree angle. The holding rod 2 is divided into a holding section 3 and a connecting section 4, a clamping ring 1 is fixed at one end of the connecting section 4 far away from the holding section 3, and the holding section 3 is a straight rod with an elliptical cross section. The plane passing through the axis of the holding rod 2 and forming an angle of 34 degrees with the cross section of the clamping ring 1 is taken as a reference plane, and the cross section of the long axis of the ellipse of the holding section 3 forms an angle of 48 degrees with the reference plane. The holding section 3 is also provided with a wing plate 5, the wing plate 5 is a circular thin plate which is formed by extending along the long axis direction of the elliptical section of the holding section 3 and has a thick center and a thin edge, the diameter of the circular thin plate is 32mm, the thickness of the center of the wing plate 5 is 3.8mm, and the cross section of the wing plate 5 is parallel to the long axis section of the ellipse of the holding section 3.
Snap ring 1 divide into vertical section and convergent section, and the periphery anchor ring of vertical section is the anchor ring of isodiametric, and the diameter of the periphery anchor ring of convergent section reduces gradually from top to bottom, and snap ring 1 is fixed in the periphery anchor ring department of vertical section.
Example 5
This embodiment provides a positioner for microfracture operation, positioner including holding pole 2 and can dismantling to set up in the snap ring 1 of holding pole 2 one end, snap ring 1 can dismantle with holding pole 2 through the plug-in and be connected, the porous locating plate of embedding in the snap ring 1, spread all over the through-hole on the porous locating plate, the through-hole diameter is 1.8mm, the hole interval is 2.5mm, positioner's material is the stainless steel.
The positioning device is matched with an electric drill for use, an operator holds the holding rod 2, and the clamping ring 1 is attached to a bone area to be drilled. Positioner is under the user state, the inboard anchor ring of snap ring 1 is the annular ladder face that the diameter gradient reduces from top to bottom, inboard anchor ring includes tertiary vertical anchor ring, tertiary vertical anchor ring is marked as first vertical anchor ring from top to bottom respectively, the vertical anchor ring of second and third vertical anchor ring, the diameter of first vertical anchor ring is 10.6mm, the diameter of the vertical anchor ring of second is 10.3mm, the diameter of the vertical anchor ring of third is 10mm, adjacent two-stage vertical anchor ring meets through horizontal anchor ring and forms annular ladder face. The porous positioning plate is embedded into a circular space surrounded by the second vertical ring surface and is erected on a horizontal ring surface of the second vertical ring surface, which is in butt joint with the third vertical ring surface.
The axis of the holding rod 2 and the cross section of the snap ring 1 form a 52-degree angle. The holding rod 2 is divided into a holding section 3 and a connecting section 4, a clamping ring 1 is fixed at one end of the connecting section 4 far away from the holding section 3, and the holding section 3 is a straight rod with an elliptical cross section. The plane passing through the axis of the holding rod 2 and forming an angle of 35 degrees with the cross section of the clamping ring 1 is taken as a reference plane, and the cross section of the long axis of the ellipse of the holding section 3 forms an angle of 54 degrees with the reference plane. The holding section 3 is also provided with a wing plate 5, the wing plate 5 is a circular thin plate which is formed by extending along the long axis direction of the elliptic section of the holding section 3 and has a thick center and a thin edge, the diameter of the circular thin plate is 36mm, the thickness of the center of the wing plate 5 is 4.2mm, and the cross section of the wing plate 5 is parallel to the section of the elliptic long axis of the holding section 3.
Snap ring 1 divide into vertical section and convergent section, and the periphery anchor ring of vertical section is the anchor ring of isodiametric, and the diameter of the periphery anchor ring of convergent section reduces gradually from top to bottom, and snap ring 1 is fixed in the periphery anchor ring department of vertical section.
Example 6
This embodiment provides a positioner for microfracture operation, positioner including holding pole 2 and can dismantling to set up in the snap ring 1 of holding pole 2 one end, snap ring 1 can dismantle with holding pole 2 through the plug-in and be connected, the porous locating plate of embedding in the snap ring 1, spread all over the through-hole on the porous locating plate, the through-hole diameter is 2mm, the hole interval is 3mm, positioner's material is nylon.
The positioning device is matched with an electric drill for use, an operator holds the holding rod 2, and the clamping ring 1 is attached to a bone area to be drilled. Positioner is under the user state, the inboard anchor ring of snap ring 1 is the annular ladder face that the diameter gradient reduces from top to bottom, inboard anchor ring includes tertiary vertical anchor ring, tertiary vertical anchor ring is marked as first vertical anchor ring, the vertical anchor ring of second and the vertical anchor ring of third respectively from top to bottom, the diameter of first vertical anchor ring is 11mm, the diameter of the vertical anchor ring of second is 10mm, the diameter of the vertical anchor ring of third is 9mm, adjacent two-stage vertical anchor ring meets through horizontal anchor ring and forms annular ladder face. The porous positioning plate is embedded into a circular space surrounded by the second vertical ring surface and is erected on a horizontal ring surface of the second vertical ring surface, which is in butt joint with the third vertical ring surface.
The axial line of the holding rod 2 and the cross section of the snap ring 1 form an angle of 60 degrees. The holding rod 2 is divided into a holding section 3 and a connecting section 4, a clamping ring 1 is fixed at one end, far away from the holding section 3, of the connecting section 4, and the holding section 3 is a straight rod with an elliptical cross section. The plane passing through the axis of the holding rod 2 and forming an angle of 50 degrees with the cross section of the clamping ring 1 is taken as a reference plane, and the cross section of the long axis of the ellipse of the holding section 3 forms an angle of 60 degrees with the reference plane. The holding section 3 is also provided with a wing plate 5, the wing plate 5 is a circular thin plate which is formed by extending along the long axis direction of the elliptic section of the holding section 3 and has a thick center and a thin edge, the diameter of the circular thin plate is 40mm, the thickness of the center of the wing plate 5 is 5mm, and the cross section of the wing plate 5 is parallel to the section of the elliptic long axis of the holding section 3.
Snap ring 1 divide into vertical section and convergent section, and the periphery anchor ring of vertical section is the anchor ring of isodiametric, and the diameter of the periphery anchor ring of convergent section reduces gradually from top to bottom, and snap ring 1 is fixed in the periphery anchor ring department of vertical section.
The applicant declares that the above description is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and it should be understood by those skilled in the art that any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are within the scope and disclosure of the present invention.
Claims (10)
1. The positioning device for the microfracture operation is characterized by comprising a holding rod and a clamping ring arranged at one end of the holding rod, wherein a porous positioning plate is embedded in the clamping ring;
through holes are distributed on the porous positioning plate; positioner uses with the electric drill cooperation, and operating personnel grips the holding rod press close to the snap ring and treat the skeleton region of drilling, positioner is under the user state, and the inboard anchor ring of snap ring is the annular ladder face that the diameter gradient reduces from top to bottom.
2. The positioning device as set forth in claim 1, wherein said snap ring is detachably disposed at one end of said holding rod.
3. The positioning device according to claim 2, wherein the inner side ring surface comprises three levels of vertical ring surfaces, the three levels of vertical ring surfaces are respectively marked as a first vertical ring surface, a second vertical ring surface and a third vertical ring surface from top to bottom, the diameters of the first vertical ring surface, the second vertical ring surface and the third vertical ring surface are sequentially reduced, and two adjacent levels of vertical ring surfaces are connected through a horizontal ring surface to form an annular step surface;
the diameter of the first vertical ring surface is 9-11 mm;
the diameter of the second vertical ring surface is 8.5-10 mm;
the diameter of the third vertical ring surface is 8-10 mm;
the diameter difference of the two adjacent vertical ring surfaces is 0.1-1 mm;
the porous positioning plate is embedded into a circular space surrounded by the second vertical ring surface and is erected on a horizontal ring surface of the second vertical ring surface, which is in butt joint with the third vertical ring surface.
4. The positioning device according to claim 1, wherein the diameter of the through hole on the porous positioning plate is 0.5-2 mm;
the hole spacing on the porous positioning plate is 1-3 mm.
5. The positioning device as set forth in claim 1, wherein the axis of the holding rod and the cross section of the snap ring form an angle a of 20-60 °.
6. The positioning device as set forth in claim 1, wherein the holding rod is divided into a holding section and a connecting section, and the end of the connecting section away from the holding section is fixed with the snap ring;
the holding section is a straight rod with an elliptical section.
7. The positioning device as set forth in claim 6, wherein a plane passing through the axis of the holding rod and forming an angle a with the cross section of the snap ring is taken as a reference plane, and the cross section of the elliptical major axis of the holding section forms an angle with the reference plane;
the cross section of the elliptic long shaft of the holding section is 30-60 degrees with the reference plane.
8. The positioning device as set forth in claim 1, wherein the snap ring is divided into a vertical section and a tapered section, and an outer circumferential ring surface of the vertical section is an equal-diameter ring surface;
the diameter of the peripheral ring surface of the tapered section is gradually reduced from top to bottom;
the snap ring is fixed on the peripheral ring surface of the vertical section.
9. The positioning device as set forth in claim 6, wherein said gripping section is provided with wings;
the wing plates are protruding structures formed by extending along the long axis direction of the elliptic section of the holding section;
the cross section of the wing plate is parallel to the section of the elliptic major axis of the holding section;
the wing plates are flat thin plates with thick centers and thin edges;
the wing plate is circular or elliptical.
10. The positioning device according to claim 9, wherein the wing plate is circular, and the diameter of the wing plate is 20-40 mm;
the thickness of pterygoid lamina center department be 2 ~ 5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023218978.5U CN216455179U (en) | 2020-12-28 | 2020-12-28 | Positioner is used in operation of microfracture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023218978.5U CN216455179U (en) | 2020-12-28 | 2020-12-28 | Positioner is used in operation of microfracture |
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| Publication Number | Publication Date |
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| CN216455179U true CN216455179U (en) | 2022-05-10 |
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| CN202023218978.5U Active CN216455179U (en) | 2020-12-28 | 2020-12-28 | Positioner is used in operation of microfracture |
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| CN (1) | CN216455179U (en) |
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Effective date of registration: 20220927 Address after: 201112 floor 3, building 23, No. 1188, LIANHANG Road, Minhang District, Shanghai Patentee after: Huaxia Siyin (Shanghai) Biotechnology Co.,Ltd. Address before: No. 85, Shashan Road, Jiangyin City, Wuxi City, Jiangsu Province Patentee before: JIANGYIN STEMEASY BIOTECHNOLOGY CO.,LTD. |