CN211156177U - Multifunctional intramedullary nail for internal fixation of fracture - Google Patents
Multifunctional intramedullary nail for internal fixation of fracture Download PDFInfo
- Publication number
- CN211156177U CN211156177U CN201921777944.4U CN201921777944U CN211156177U CN 211156177 U CN211156177 U CN 211156177U CN 201921777944 U CN201921777944 U CN 201921777944U CN 211156177 U CN211156177 U CN 211156177U
- Authority
- CN
- China
- Prior art keywords
- intramedullary nail
- window
- internal
- fixing
- internal fixation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a multifunctional intramedullary nail for internal fixation of fracture, belonging to the technical field of medical apparatus, which comprises an intramedullary nail main body, a slide way arranged in the intramedullary nail main body, and an internal fixation structure which moves along the slide way and is used for preventing the intramedullary nail from shaking; the intramedullary nail is characterized in that the intramedullary nail main body is a hexagonal polygonal cavity intramedullary nail, and a plurality of windows are arranged on the wall of the cavity; the internal fixing structure comprises an extensible structure; the window comprises a window through which the extendable structure extends; the slideway is integrally connected with the intramedullary nail main body and has the same direction with the intramedullary nail, and the internal fixing structure is combined and connected with the slideway; by arranging the intramedullary nail with the window, the extending structure extends out of the window and is fixed on the inner wall of the marrow cavity after the internal fixing structure reaches the window for the extending structure to extend out, thereby preventing the intramedullary nail from shaking in the marrow cavity and avoiding causing unnecessary complications.
Description
Technical Field
The utility model belongs to the technical field of medical equipment, in particular to a multifunctional intramedullary nail for internal fixation of fracture.
Background
Fracture refers to the continuous complete or partial breakdown of bone structure. It is common to children and the elderly, and occurs in the middle-aged and young. Patients often have one site fractured and a few multiple fractures. After timely and proper treatment, most patients can recover the original functions, and a few patients can leave sequelae with different degrees.
The method of fracture fixation is divided into external fixation and internal fixation, the external fixation is mainly used for patients whose fracture is reduced by manipulation, and some patients whose fracture is reduced by incision and internal fixation need external fixation. The currently common external fixation methods include small splints, plaster bandages, abduction frames, continuous traction and external fixators, etc. The internal fixation for fracture refers to an operation in which a broken bone is directly connected and fixed in the broken bone by using a metal screw, a steel plate, an intramedullary pin, a steel wire, a bone plate or the like when the fracture occurs.
Intramedullary pin fixation is often used for long bone (such as femur, humerus, ulna, tibia, radius, etc.) shaft fractures. The advantages are that: the intramedullary pin is firm and firm, can be fixed with little or no external fixation after operation, and is beneficial to the early movement and exercise of injured limbs; the skin incision is small, the periosteum stripping range is limited, and the damage is small; the intramedullary needle is long and has edges and corners with different shapes, and is embedded into the medullary cavity, so that firm internal fixation can be achieved, and the occurrence of rotation, lateral movement and angular displacement can be avoided.
At present, the operation difficulty of the internal fixation of the intramedullary nail in clinical practice is large, the operation depends on the operation experience of an operator, in the operation process, surgical instruments need to be frequently replaced, the operation process is complicated, the operation time is long, and the operation risk of a patient is increased. In addition, because of individual difference of patients and different thickness of bone cavities, intramedullary nails fixed in the bone cavities are easy to slightly move to form bone nonunion; the broken end in the bone cavity is easy to form an angle due to different thicknesses in the cavity, for the angle, a blocking nail or a kirschner wire is used at present, but invasive operation is conducted, the skin needs to be broken, meanwhile, when the broken end is radiated, a patient needs to bear the injury of rays, the operation requirement on a doctor is also very high, the broken end does not always survive once, the desired resetting effect cannot be achieved, and misoperation is easy to form.
The utility model aims at the problems that the intramedullary nail internal fixation needs to frequently replace the surgical instruments in the operation process in the prior art, and the operation process is complicated; because of individual difference and different bone cavity thickness of patients, the intramedullary nail fixed in the bone cavity is easy to slightly move, thereby forming the problem of bone nonunion or angle of broken end, and providing the multifunctional intramedullary nail for internal fixation of fracture.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects that the intramedullary nail internal fixation operation in the prior art needs to frequently replace surgical instruments in the operation process, the operation process is more complicated; because patient's individual difference, the bone cavity thickness differs, fixes the easy fine motion of the intramedullary nail in the bone cavity, forms the problem that the bone is disconnected or the broken end angulation, the utility model provides a multi-functional intramedullary nail for fracture internal fixation.
A multifunctional intramedullary nail for internal fixation of fracture comprises an intramedullary nail main body, a slideway arranged in the intramedullary nail main body, and an internal fixation structure moving along the slideway and used for preventing the intramedullary nail from shaking; the intramedullary nail is characterized in that the intramedullary nail main body is a hexagonal polygonal cavity intramedullary nail, and a plurality of windows are arranged on the wall of the cavity; the internal fixing structure comprises an extensible structure; the window comprises a window through which the extendable structure extends; the slideway is integrally connected with the intramedullary nail main body and has the same direction with the intramedullary nail, and the internal fixing structure is combined and connected with the slideway; through the setting of the intramedullary nail with the window, after the internal fixation structure reaches the window for the extensible structure to extend out, the extensible structure extends out from the window and is fixed on the inner wall of a bone marrow cavity, so that the intramedullary nail is prevented from shaking in the bone marrow cavity, unnecessary complications are avoided, in addition, the intramedullary nail main body is set into a cavity intramedullary nail, the operations such as flushing, medicine injection or material implantation can be carried out in the cavity of the intramedullary nail through the setting of a plurality of windows, the structural space of the cavity of the intramedullary nail is fully utilized, the operation process is simplified, and the pain of a patient is relieved.
Furthermore, the slideway is arranged at the edge position of the middle height in the intramedullary nail, and the side edge of the slideway is integrally connected with the inner side wall of the intramedullary nail; the stability of slide can be guaranteed to this kind of setting.
Further, a preset track is arranged on the slide way; and a locking structure is arranged on the preset track close to the corresponding window, after the internal fixing structure moves to the locking structure along the preset track, the lower end of the internal fixing structure is fixed at the locking structure, the upper end of the internal fixing structure is provided with the extensible structure, and the extensible structure extends out of the window and is fixed on the inner wall of the marrow cavity.
Furthermore, the locking structure comprises a sliding chute and a fixing hole, and the fixing hole is arranged at the tail end of the sliding chute; the fixing hole is used for fixing the internal fixing structure.
Furthermore, the sliding groove is a semicircular groove, and the length of the sliding groove is smaller than that of the sliding way; the arrangement can play a role in blocking and fixing the internal fixing structure when the internal fixing structure is fixed in the fixing hole.
Furthermore, the fixing hole is a hole penetrating through the slide way up and down, and the inner diameter of the fixing hole is slightly larger than the outer diameter of the bottom of the internal fixing structure; this arrangement ensures that the fixing holes can receive the lower end of the internal structure, thereby fixing the internal fixing structure to the slideway.
Furthermore, the fixing holes are magnetic, and the internal fixing structure can be fixed better under the action of magnetic adsorption.
Furthermore, two slide ways are arranged and are respectively arranged at the edge positions of the left side and the right side of the middle height in the intramedullary nail.
Further, the lengths of the two slideways and the length of the sliding chute are set to be different in size; the positions of the fixing holes are different due to different lengths of the sliding grooves; the arrangement ensures that the positions of the left fixing hole and the right fixing hole are not on the same straight line, so that the fixing positions of the internal fixing structures are different, the acting forces of the left internal fixing structure and the right internal fixing structure are concentrated at different positions, and the stability of the intramedullary nail in the marrow cavity is ensured by multi-point fixation.
Or the lengths of the two slideways and the length of the sliding chute are set to be the same size; the positions of the fixing holes are arranged on the same horizontal line; the arrangement makes the left and right internal fixing structures symmetrical with each other, so that the structure has stability on one hand and aesthetic property on the other hand.
Furthermore, a support rod is arranged at the bottom of the slideway, one end of the support rod is integrally connected with the bottom of the slideway, and the other end of the support rod is integrally connected with the inner side wall of the intramedullary nail; this arrangement may enhance the stability of the slideway.
Furthermore, the internal fixing structure comprises a base at the bottom and an extensible structure at the upper part, and the base and the extensible structure are integrally connected; the base can follow the slide removes, but the structure that stretches out can stretch out the window is fixed on the intramedullary wall.
Further, the extensible structure is arranged to be an arc-shaped strip structure; the arc-shaped arrangement can avoid scratching the inner wall of the marrow cavity, and when the internal fixing structure is fixed in the fixing hole, the arc-shaped strip-shaped structure extends out of the window and is fixed on the inner wall of the marrow cavity.
Further, an operating rod is arranged on the base and is connected with the base of the internal fixing structure in a combined mode; the combined connection mode can be used for taking out the operating rod after the inner fixing structure is fixed.
Further, a transverse blocking protrusion is arranged at the far end of the operating rod; the lateral blocking projection serves to fix the position of the operating lever.
Furthermore, a soft split snap ring is arranged on the base, the split snap ring has an upward opening, and the split snap ring is integrally connected with the base; when the operating rod is used, the operating rod is placed into the opening snap ring, and the blocking protrusion can fix the operating rod in the opening snap ring.
Furthermore, the lower part of the base is made of a magnetic material, and a magnetic adsorption effect is generated between the lower part of the base and the fixing hole, so that the internal fixing structure is firmly fixed in the fixing hole.
Furthermore, the size of the window is larger than that of the arc-shaped strip-shaped structure, and the size of the window is smaller than that of the side wall of the intramedullary nail; the position of the window corresponds to the position of the arc-shaped strip-shaped structure; the arrangement ensures that the arc-shaped strip-shaped structure can smoothly extend out of the window when the internal fixing structure is fixed.
Furthermore, a pipeline structure for operations such as flushing, injecting medicines, implanting materials and the like is arranged in the intramedullary nail.
Furthermore, the pipeline structure is a cylindrical pipe, one end of the cylindrical pipe is provided with an opening, and the other end of the cylindrical pipe is provided with a circular bottom cover; 2-4 branch pipelines are arranged on the circular bottom cover, and each branch pipeline faces to a different direction; the arrangement can fully wash, inject medicine or implant materials in the bone marrow cavity.
Further, the number of the branch lines is preferably 2; 2 branch lines are sufficient for the treatment needs.
Further, the branch line is provided as a soft cylindrical tube; the soft branch pipeline is convenient to take out or put in the intramedullary nail.
Further, the window is arranged on the side wall of the intramedullary nail at the position corresponding to the branch pipeline; the branch lines flow irrigation fluid, drugs or implant materials, etc. to the bone marrow cavity through the windows.
Further, a pipeline fixing structure is arranged, the pipeline fixing structure is arranged at the upper half part of the inside of the intramedullary nail, and the pipeline fixing structure is integrally connected with the inner side wall of the top of the intramedullary nail; the arrangement can leave the space of the lower half part inside the intramedullary nail for placing other surgical instruments or performing other operations.
Furthermore, 2-6 pipeline fixing structures are arranged, the two pipeline fixing structures are respectively distributed at the near end and the far end of the pipeline structure, and the height of the pipeline fixing structure at the near end is larger than that of the pipeline fixing structure at the far end; the near end of the pipeline structure is one end close to an operator, the far end of the pipeline structure is one end far away from the operator, and the pipeline structure has a certain inclination angle when placed on the pipeline fixing structure due to the arrangement, so that flushing liquid, liquid medicine or implant materials and the like can flow out of the pipeline structure to reach the marrow cavity.
Further, the number of the pipeline fixing structures is preferably 2; the 2 pipeline fixing structures can sufficiently meet the requirements of fixing the pipeline structures and occupy smaller space.
Furthermore, the pipeline fixing structure is arranged as a bearing ring, and the upper end of the bearing ring is integrally connected with the side wall of the top of the intramedullary nail; the arrangement can occupy smaller space and leave more space for other operations.
Further, a semicircular plugging sheet is arranged on the supporting ring at the far end; the plugging sheet can fix the pipeline structure and prevent the pipeline structure from slipping.
When the intramedullary nail is used, the operating rod is firstly combined and connected with the split snap ring, then the operating rod is controlled to control the movement of the internal fixing structure, the base of the internal fixing structure enters the fixing hole after the internal fixing structure is pushed to reach the position of the locking structure, the extendable structure extends out of the window and is fixed on the inner wall of the marrow cavity, then the operating rod is lifted upwards, the operating rod is lifted out of the split snap ring, and then the operating rod is taken out of the intramedullary nail; when the operations of flushing, injecting medicine, implanting material and the like need to be carried out, firstly, the pipeline structure is installed on the pipeline fixing structure, the position of the intramedullary nail is adjusted to enable the branch pipeline to be directly opposite to the affected part, then, the injector is placed into the pipeline structure to be injected, or flushing liquid, medicine or implanting material is injected into the pipeline structure and flows through the branch pipeline to reach the affected part; or, the device such as an injector or a syringe is directly placed in the cavity of the intramedullary nail without installing a pipeline structure, and the flushing liquid, the medicine or the implant material is directly injected into the marrow cavity through the window.
Compared with the intramedullary nail instrument in the prior art, the technical scheme of the utility model the space of the inside cavity of make full use of intramedullary nail, through at the inside internal fixation structure that sets up of intramedullary nail, solve the intramedullary nail and appear the problem of rocking in the marrow cavity, can wash the marrow cavity through setting up pipeline structure, add medicine, implant operation such as material, and do not need frequently to change surgical instruments, simplified the operation step, subtract and shorten operating time, alleviateed patient's misery, not only collect multi-functionally in one ware, low cost, be convenient for extensively promote.
Drawings
FIG. 1 is a schematic view of the overall structure of the multifunctional intramedullary nail internal fixation structure for internal fixation of fracture fixed on a slideway of the present invention;
FIG. 2 is a schematic view of the overall front view structure of the multifunctional intramedullary nail internal fixation structure for internal fixation of fracture fixed on a slideway of the present invention;
FIG. 3 is a schematic view of the overall rear view structure of the multifunctional intramedullary nail internal fixation structure for internal fixation of fracture fixed on the slideway of the present invention;
FIG. 4 is a schematic view of the internal elevation view of the multifunctional intramedullary nail internal fixation structure for internal fixation of fracture fixed on a slideway of the present invention;
FIG. 5 is a schematic view of the overall front view structure of the multifunctional intramedullary nail internal fixation structure for internal fixation of fracture at the front end of the slideway of the present invention;
FIG. 6 is a schematic view of the overall cross-sectional structure of the multifunctional intramedullary nail internal fixation structure for internal fixation of fracture fixed on a slideway of the present invention;
FIG. 7 is a schematic view of the whole enlarged structure of the multifunctional intramedullary nail internal fixation structure for internal fixation of fracture;
FIG. 8 is a schematic view of a partially enlarged structure of the combined connection of the multifunctional intramedullary nail internal fixation structure and the operation rod for internal fixation of fracture;
FIG. 9 is a schematic view of the overall structure of a multi-functional intramedullary nail slide for internal fixation of fracture according to the present invention;
FIG. 10 is a partially enlarged structural view of the multifunctional intramedullary nail internal fixation structure for internal fixation of fracture fixed in the fixation hole of the slideway according to the present invention;
FIG. 11 is an enlarged schematic view of the partial cross-sectional structure of the multifunctional intramedullary nail internal fixation structure for internal fixation of fracture fixed in the fixation hole of the slideway of the present invention;
FIG. 12 is an enlarged view of the branch lines of the multifunctional intramedullary nail tube structure for internal fixation of fracture according to the present invention;
in the drawings, 1, an intramedullary nail main body; 11. a slideway; 111. a chute; 112. a fixing hole; 113. a support bar; 114. a window; 115. a bearing ring; 2. an internal fixation structure; 21. a base; 22. an extendable structure; 23. A split snap ring; 24. an operating lever; 241. a lateral blocking projection; 3. a pipe structure; 31. and a branch pipeline.
Detailed Description
The technical solutions in the embodiments of the present invention will be described in detail below with reference to specific embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and those skilled in the art can easily understand other advantages and effects of the present invention from the disclosure in the specification. The utility model discloses can also implement or use through other different concrete implementation manners, under the condition of conflict-free, the characteristics in following embodiment and the embodiment can make up each other, based on the embodiment in the utility model, all other embodiments that the ordinary skilled in the art obtained under the prerequisite of not making creative work all belong to the scope of protection of the utility model.
EXAMPLE 1A multifunctional intramedullary nail for internal fixation of bone fractures
A multifunctional intramedullary nail for internal fixation of fracture comprises an intramedullary nail main body, a slideway arranged in the intramedullary nail main body, and an internal fixation structure moving along the slideway and used for preventing the intramedullary nail from shaking; the intramedullary nail is characterized in that the intramedullary nail main body is a hexagonal polygonal cavity intramedullary nail, and a plurality of windows are arranged on the wall of the cavity; the internal fixing structure comprises an extensible structure; the window comprises a window through which the extendable structure extends; the slideway is integrally connected with the intramedullary nail main body and has the same direction with the intramedullary nail, and the internal fixing structure is combined and connected with the slideway; through the setting of the intramedullary nail with the window, after the internal fixation structure reaches the window for the extensible structure to extend out, the extensible structure extends out from the window and is fixed on the inner wall of a bone marrow cavity, so that the intramedullary nail is prevented from shaking in the bone marrow cavity, unnecessary complications are avoided, in addition, the intramedullary nail main body is set into a cavity intramedullary nail, the operations such as flushing, medicine injection or material implantation can be carried out in the cavity of the intramedullary nail through the setting of a plurality of windows, the structural space of the cavity of the intramedullary nail is fully utilized, the operation process is simplified, and the pain of a patient is relieved.
The slideway is arranged at the edge position of the middle height in the intramedullary nail, and the side edge of the slideway is integrally connected with the inner side wall of the intramedullary nail; the stability of slide can be guaranteed to this kind of setting.
The internal fixing structure comprises a base at the bottom and an extensible structure at the upper part, and the base and the extensible structure are integrally connected; the base can follow the slide removes, but the structure that stretches out can stretch out the window is fixed on the intramedullary wall.
The extensible structure is arranged into an arc-shaped strip structure; the arc-shaped arrangement can avoid scratching the inner wall of the marrow cavity, and when the internal fixing structure is fixed in the fixing hole, the arc-shaped strip-shaped structure extends out of the window and is fixed on the inner wall of the marrow cavity.
An operating rod is arranged on the base and is connected with the base combination of the internal fixing structure; the combined connection mode can be used for taking out the operating rod after the inner fixing structure is fixed.
The size of the window is larger than that of the arc-shaped strip-shaped structure, and the size of the window is smaller than that of the side wall of the intramedullary nail; the position of the window corresponds to the position of the arc-shaped strip-shaped structure; the arrangement ensures that the arc-shaped strip-shaped structure can smoothly extend out of the window when the internal fixing structure is fixed.
When the intramedullary nail fixing device is used, the operating rod is connected with the base of the internal fixing structure in a combined mode, the internal fixing structure is controlled to move by controlling the operating rod, and the extensible structure extends out of the window position and is fixed on the inner wall of the marrow cavity, so that the intramedullary nail is stably fixed in the marrow cavity, and the intramedullary nail is prevented from shaking.
EXAMPLE 2A multifunctional intramedullary nail for internal fixation of bone fractures
A multifunctional intramedullary nail for internal fixation of fracture comprises an intramedullary nail main body, a slideway arranged in the intramedullary nail main body, and an internal fixation structure moving along the slideway and used for preventing the intramedullary nail from shaking; the intramedullary nail is characterized in that the intramedullary nail main body is a hexagonal polygonal cavity intramedullary nail, and a plurality of windows are arranged on the wall of the cavity; the internal fixing structure comprises an extensible structure; the window comprises a window through which the extendable structure extends; the slideway is integrally connected with the intramedullary nail main body and has the same direction with the intramedullary nail, and the internal fixing structure is combined and connected with the slideway; through the setting of the intramedullary nail with the window, after the internal fixation structure reaches the window for the extensible structure to extend out, the extensible structure extends out from the window and is fixed on the inner wall of a bone marrow cavity, so that the intramedullary nail is prevented from shaking in the bone marrow cavity, unnecessary complications are avoided, in addition, the intramedullary nail main body is set into a cavity intramedullary nail, the operations such as flushing, medicine injection or material implantation can be carried out in the cavity of the intramedullary nail through the setting of a plurality of windows, the structural space of the cavity of the intramedullary nail is fully utilized, the operation process is simplified, and the pain of a patient is relieved.
The slideway is arranged at the edge position of the middle height in the intramedullary nail, and the side edge of the slideway is integrally connected with the inner side wall of the intramedullary nail; the stability of slide can be guaranteed to this kind of setting.
A preset track is arranged on the slide way; and a locking structure is arranged on the preset track close to the corresponding window, after the internal fixing structure moves to the locking structure along the preset track, the lower end of the internal fixing structure is fixed at the locking structure, the upper end of the internal fixing structure is provided with the extensible structure, and the extensible structure extends out of the window and is fixed on the inner wall of the marrow cavity.
The locking structure comprises a sliding chute and a fixing hole, and the fixing hole is arranged at the tail end of the sliding chute; the fixing hole is used for fixing the internal fixing structure.
The sliding groove is a semicircular groove, and the length of the sliding groove is smaller than that of the sliding way; the arrangement can play a role in blocking and fixing the internal fixing structure when the internal fixing structure is fixed in the fixing hole.
The fixing hole is a hole penetrating through the slide way up and down, and the inner diameter of the fixing hole is slightly larger than the outer diameter of the bottom of the internal fixing structure; this arrangement ensures that the fixing holes can receive the lower end of the internal structure, thereby fixing the internal fixing structure to the slideway.
The fixing hole is set to be a magnetic fixing hole, and the internal fixing structure is better fixed through the magnetic adsorption effect.
The internal fixing structure comprises a base at the bottom and an extensible structure at the upper part, and the base and the extensible structure are integrally connected; the base can follow the slide removes, but the structure that stretches out can stretch out the window is fixed on the intramedullary wall.
The extensible structure is arranged into an arc-shaped strip structure; the arc-shaped arrangement can avoid scratching the inner wall of the marrow cavity, and when the internal fixing structure is fixed in the fixing hole, the arc-shaped strip-shaped structure extends out of the window and is fixed on the inner wall of the marrow cavity.
An operating rod is arranged on the base and is connected with the base combination of the internal fixing structure; the combined connection mode can be used for taking out the operating rod after the inner fixing structure is fixed.
A transverse blocking bulge is arranged at the far end of the operating rod; the lateral blocking projection serves to fix the position of the operating lever.
A soft split snap ring is arranged on the base, the split snap ring has an upward opening, and the split snap ring is integrally connected with the base; when the operating rod is used, the operating rod is placed into the opening snap ring, and the blocking protrusion can fix the operating rod in the opening snap ring.
The lower part of the base is made of a magnetic material, and a magnetic adsorption effect is generated between the lower part of the base and the fixing hole, so that the internal fixing structure is firmly fixed in the fixing hole.
The size of the window is larger than that of the arc-shaped strip-shaped structure, and the size of the window is smaller than that of the side wall of the intramedullary nail; the position of the window corresponds to the position of the arc-shaped strip-shaped structure; the arrangement ensures that the arc-shaped strip-shaped structure can smoothly extend out of the window when the internal fixing structure is fixed.
During the use, at first with action bars and split snap ring built-up connection, then control the internal fixation structure through control lever and remove, promote the internal fixation structure and reach behind the dead structure position of lock, the base of internal fixation structure gets into in the fixed orifices, but the extending structure stretches out the window and fixes on marrow intracavity wall, then upwards lifts up the action bars, lifts up the action bars from the split snap ring in, afterwards with the action bars follow the intramedullary nail in take out can.
EXAMPLE 3A multifunctional intramedullary nail for internal fixation of bone fractures
A multifunctional intramedullary nail for internal fixation of fracture comprises an intramedullary nail main body, a slideway arranged in the intramedullary nail main body, and an internal fixation structure moving along the slideway and used for preventing the intramedullary nail from shaking; the intramedullary nail is characterized in that the intramedullary nail main body is a hexagonal polygonal cavity intramedullary nail, and a plurality of windows are arranged on the wall of the cavity; the internal fixing structure comprises an extensible structure; the window comprises a window through which the extendable structure extends; the slideway is integrally connected with the intramedullary nail main body and has the same direction with the intramedullary nail, and the internal fixing structure is combined and connected with the slideway; through the setting of the intramedullary nail with the window, after the internal fixation structure reaches the window for the extensible structure to extend out, the extensible structure extends out from the window and is fixed on the inner wall of a bone marrow cavity, so that the intramedullary nail is prevented from shaking in the bone marrow cavity, unnecessary complications are avoided, in addition, the intramedullary nail main body is set into a cavity intramedullary nail, the operations such as flushing, medicine injection or material implantation can be carried out in the cavity of the intramedullary nail through the setting of a plurality of windows, the structural space of the cavity of the intramedullary nail is fully utilized, the operation process is simplified, and the pain of a patient is relieved.
The intramedullary nail main body can be an intramedullary nail which can realize the function of the intramedullary nail main body in any shape, wherein, the intramedullary nail main body is preferably set to be a hexagonal polygonal cavity intramedullary nail; the intramedullary nail with the shape has stronger stability.
The slideway is arranged at the edge position of the middle height in the intramedullary nail, and the side edge of the slideway is integrally connected with the inner side wall of the intramedullary nail; the stability of slide can be guaranteed to this kind of setting.
A preset track is arranged on the slide way; and a locking structure is arranged on the preset track close to the corresponding window, after the internal fixing structure moves to the locking structure along the preset track, the lower end of the internal fixing structure is fixed at the locking structure, the upper end of the internal fixing structure is provided with the extensible structure, and the extensible structure extends out of the window and is fixed on the inner wall of the marrow cavity.
The locking structure comprises a sliding chute and a fixing hole, and the fixing hole is arranged at the tail end of the sliding chute; the fixing hole is used for fixing the internal fixing structure.
The sliding groove is a semicircular groove, and the length of the sliding groove is smaller than that of the sliding way; the arrangement can play a role in blocking and fixing the internal fixing structure when the internal fixing structure is fixed in the fixing hole.
The fixing hole is a hole penetrating through the slide way up and down, and the inner diameter of the fixing hole is slightly larger than the outer diameter of the bottom of the internal fixing structure; this arrangement ensures that the fixing holes can receive the lower end of the internal structure, thereby fixing the internal fixing structure to the slideway.
The fixing hole is set to be a magnetic fixing hole, and the internal fixing structure is better fixed through the magnetic adsorption effect.
Two slideways are arranged and are respectively arranged at the edge positions of the left side and the right side of the middle height in the intramedullary nail.
The lengths of the two slideways and the length of the sliding chute are set to be the same size; the positions of the fixing holes are arranged on the same horizontal line; the arrangement makes the left and right internal fixing structures symmetrical with each other, so that the structure has stability on one hand and aesthetic property on the other hand.
A supporting rod is arranged at the bottom of the slideway, one end of the supporting rod is integrally connected with the bottom of the slideway, and the other end of the supporting rod is integrally connected with the inner side wall of the intramedullary nail; this arrangement may enhance the stability of the slideway.
The internal fixing structure comprises a base at the bottom and an extensible structure at the upper part, and the base and the extensible structure are integrally connected; the base can follow the slide removes, but the structure that stretches out can stretch out the window is fixed on the intramedullary wall.
The extensible structure is arranged into an arc-shaped strip structure; the arc-shaped arrangement can avoid scratching the inner wall of the marrow cavity, and when the internal fixing structure is fixed in the fixing hole, the arc-shaped strip-shaped structure extends out of the window and is fixed on the inner wall of the marrow cavity.
An operating rod is arranged on the base and is connected with the base combination of the internal fixing structure; the combined connection mode can be used for taking out the operating rod after the inner fixing structure is fixed.
A transverse blocking bulge is arranged at the far end of the operating rod; the lateral blocking projection serves to fix the position of the operating lever.
A soft split snap ring is arranged on the base, the split snap ring has an upward opening, and the split snap ring is integrally connected with the base; when the operating rod is used, the operating rod is placed into the opening snap ring, and the blocking protrusion can fix the operating rod in the opening snap ring.
The lower part of the base is made of a magnetic material, and a magnetic adsorption effect is generated between the lower part of the base and the fixing hole, so that the internal fixing structure is firmly fixed in the fixing hole.
The size of the window is larger than that of the arc-shaped strip-shaped structure, and the size of the window is smaller than that of the side wall of the intramedullary nail; the position of the window corresponds to the position of the arc-shaped strip-shaped structure; the arrangement ensures that the arc-shaped strip-shaped structure can smoothly extend out of the window when the internal fixing structure is fixed.
When the intramedullary nail is used, the operating rod is firstly combined and connected with the split snap ring, then the operating rod is controlled to control the movement of the internal fixing structure, the base of the internal fixing structure enters the fixing hole after the internal fixing structure is pushed to reach the position of the locking structure, the extendable structure extends out of the window and is fixed on the inner wall of the marrow cavity, then the operating rod is lifted upwards, the operating rod is lifted out of the split snap ring, and then the operating rod is taken out of the intramedullary nail; the arrangement of the two slide ways can realize multi-point and multi-directional fixation, and the stability of the intramedullary nail in the marrow cavity is enhanced.
EXAMPLE 4A multifunctional intramedullary nail for internal fixation of bone fractures
A multifunctional intramedullary nail for internal fixation of fracture comprises an intramedullary nail main body, a slideway arranged in the intramedullary nail main body, and an internal fixation structure moving along the slideway and used for preventing the intramedullary nail from shaking; the intramedullary nail is characterized in that the intramedullary nail main body is a hexagonal polygonal cavity intramedullary nail, and a plurality of windows are arranged on the wall of the cavity; the internal fixing structure comprises an extensible structure; the window comprises a window through which the extendable structure extends; the slideway is integrally connected with the intramedullary nail main body and has the same direction with the intramedullary nail, and the internal fixing structure is combined and connected with the slideway; through the setting of the intramedullary nail with the window, after the internal fixation structure reaches the window for the extensible structure to extend out, the extensible structure extends out from the window and is fixed on the inner wall of a bone marrow cavity, so that the intramedullary nail is prevented from shaking in the bone marrow cavity, unnecessary complications are avoided, in addition, the intramedullary nail main body is set into a cavity intramedullary nail, the operations such as flushing, medicine injection or material implantation can be carried out in the cavity of the intramedullary nail through the setting of a plurality of windows, the structural space of the cavity of the intramedullary nail is fully utilized, the operation process is simplified, and the pain of a patient is relieved.
The slideway is arranged at the edge position of the middle height in the intramedullary nail, and the side edge of the slideway is integrally connected with the inner side wall of the intramedullary nail; the stability of slide can be guaranteed to this kind of setting.
A preset track is arranged on the slide way; and a locking structure is arranged on the preset track close to the corresponding window, after the internal fixing structure moves to the locking structure along the preset track, the lower end of the internal fixing structure is fixed at the locking structure, the upper end of the internal fixing structure is provided with the extensible structure, and the extensible structure extends out of the window and is fixed on the inner wall of the marrow cavity.
The locking structure comprises a sliding chute and a fixing hole, and the fixing hole is arranged at the tail end of the sliding chute; the fixing hole is used for fixing the internal fixing structure.
The sliding groove is a semicircular groove, and the length of the sliding groove is smaller than that of the sliding way; the arrangement can play a role in blocking and fixing the internal fixing structure when the internal fixing structure is fixed in the fixing hole.
The fixing hole is a hole penetrating through the slide way up and down, and the inner diameter of the fixing hole is slightly larger than the outer diameter of the bottom of the internal fixing structure; this arrangement ensures that the fixing holes can receive the lower end of the internal structure, thereby fixing the internal fixing structure to the slideway.
The fixing hole is set to be a magnetic fixing hole, and the internal fixing structure is better fixed through the magnetic adsorption effect.
Two slideways are arranged and are respectively arranged at the edge positions of the left side and the right side of the middle height in the intramedullary nail.
The lengths of the two slideways and the length of the sliding chute are set to be different in size; the positions of the fixing holes are different due to different lengths of the sliding grooves; the arrangement ensures that the positions of the left fixing hole and the right fixing hole are not on the same straight line, so that the fixing positions of the internal fixing structures are different, the acting forces of the left internal fixing structure and the right internal fixing structure are concentrated at different positions, and the stability of the intramedullary nail in the marrow cavity is ensured by multi-point fixation.
A supporting rod is arranged at the bottom of the slideway, one end of the supporting rod is integrally connected with the bottom of the slideway, and the other end of the supporting rod is integrally connected with the inner side wall of the intramedullary nail; this arrangement may enhance the stability of the slideway.
The internal fixing structure comprises a base at the bottom and an extensible structure at the upper part, and the base and the extensible structure are integrally connected; the base can follow the slide removes, but the structure that stretches out can stretch out the window is fixed on the intramedullary wall.
The extensible structure is arranged into an arc-shaped strip structure; the arc-shaped arrangement can avoid scratching the inner wall of the marrow cavity, and when the internal fixing structure is fixed in the fixing hole, the arc-shaped strip-shaped structure extends out of the window and is fixed on the inner wall of the marrow cavity.
An operating rod is arranged on the base and is connected with the base combination of the internal fixing structure; the combined connection mode can be used for taking out the operating rod after the inner fixing structure is fixed.
A transverse blocking bulge is arranged at the far end of the operating rod; the lateral blocking projection serves to fix the position of the operating lever.
A soft split snap ring is arranged on the base, the split snap ring has an upward opening, and the split snap ring is integrally connected with the base; when the operating rod is used, the operating rod is placed into the opening snap ring, and the blocking protrusion can fix the operating rod in the opening snap ring.
The lower part of the base is made of a magnetic material, and a magnetic adsorption effect is generated between the lower part of the base and the fixing hole, so that the internal fixing structure is firmly fixed in the fixing hole.
The size of the window is larger than that of the arc-shaped strip-shaped structure, and the size of the window is smaller than that of the side wall of the intramedullary nail; the position of the window corresponds to the position of the arc-shaped strip-shaped structure; the arrangement ensures that the arc-shaped strip-shaped structure can smoothly extend out of the window when the internal fixing structure is fixed.
A pipeline structure is arranged in the intramedullary nail; the operations of flushing, injecting medicine, implanting materials and the like can be performed through the pipeline structure.
The pipeline structure is set to be a cylindrical pipe, one end of the cylindrical pipe is set to be an opening, and the other end of the cylindrical pipe is provided with a circular bottom cover.
2 branch pipelines are arranged on the circular bottom cover, and each branch pipeline faces to a different direction; the arrangement can fully wash, inject medicine or implant materials in the bone marrow cavity.
The branch pipeline is set to be a soft cylindrical pipe; the soft branch pipeline is convenient to take out or put in the intramedullary nail.
The window is arranged on the side wall of the intramedullary nail at the position corresponding to the branch pipeline; the branch lines flow irrigation fluid, drugs or implant materials, etc. to the bone marrow cavity through the windows.
When the intramedullary nail is used, the operating rod is firstly combined and connected with the split snap ring, then the operating rod is controlled to control the movement of the internal fixing structure, the base of the internal fixing structure enters the fixing hole after the internal fixing structure is pushed to reach the position of the locking structure, the extendable structure extends out of the window and is fixed on the inner wall of the marrow cavity, then the operating rod is lifted upwards, the operating rod is lifted out of the split snap ring, and then the operating rod is taken out of the intramedullary nail; when the operations of flushing, injecting medicine, implanting material and the like are required, the pipeline structure is placed into a cavity of the intramedullary nail, the branch pipeline is just opposite to the affected part by adjusting the position of the intramedullary nail, then the injector is placed into the pipeline structure to be injected, or flushing liquid, medicine or implanting material is injected into the pipeline structure and flows through the branch pipeline to reach the affected part.
EXAMPLE 5A multifunctional intramedullary nail for internal fixation of bone fractures
A multifunctional intramedullary nail for internal fixation of fracture comprises an intramedullary nail main body, a slideway arranged in the intramedullary nail main body, and an internal fixation structure moving along the slideway and used for preventing the intramedullary nail from shaking; the intramedullary nail is characterized in that the intramedullary nail main body is a hexagonal polygonal cavity intramedullary nail, and a plurality of windows are arranged on the wall of the cavity; the internal fixing structure comprises an extensible structure; the window comprises a window through which the extendable structure extends; the slideway is integrally connected with the intramedullary nail main body and has the same direction with the intramedullary nail, and the internal fixing structure is combined and connected with the slideway; through the setting of the intramedullary nail with the window, after the internal fixation structure reaches the window for the extensible structure to extend out, the extensible structure extends out from the window and is fixed on the inner wall of a bone marrow cavity, so that the intramedullary nail is prevented from shaking in the bone marrow cavity, unnecessary complications are avoided, in addition, the intramedullary nail main body is set into a cavity intramedullary nail, the operations such as flushing, medicine injection or material implantation can be carried out in the cavity of the intramedullary nail through the setting of a plurality of windows, the structural space of the cavity of the intramedullary nail is fully utilized, the operation process is simplified, and the pain of a patient is relieved.
The slideway is arranged at the edge position of the middle height in the intramedullary nail, and the side edge of the slideway is integrally connected with the inner side wall of the intramedullary nail; the stability of slide can be guaranteed to this kind of setting.
A preset track is arranged on the slide way; and a locking structure is arranged on the preset track close to the corresponding window, after the internal fixing structure moves to the locking structure along the preset track, the lower end of the internal fixing structure is fixed at the locking structure, the upper end of the internal fixing structure is provided with the extensible structure, and the extensible structure extends out of the window and is fixed on the inner wall of the marrow cavity.
The locking structure comprises a sliding chute and a fixing hole, and the fixing hole is arranged at the tail end of the sliding chute; the fixing hole is used for fixing the internal fixing structure.
The sliding groove is a semicircular groove, and the length of the sliding groove is smaller than that of the sliding way; the arrangement can play a role in blocking and fixing the internal fixing structure when the internal fixing structure is fixed in the fixing hole.
The fixing hole is a hole penetrating through the slide way up and down, and the inner diameter of the fixing hole is slightly larger than the outer diameter of the bottom of the internal fixing structure; this arrangement ensures that the fixing holes can receive the lower end of the internal structure, thereby fixing the internal fixing structure to the slideway.
The fixing hole is set to be a magnetic fixing hole, and the internal fixing structure is better fixed through the magnetic adsorption effect.
Two slideways are arranged and are respectively arranged at the edge positions of the left side and the right side of the middle height in the intramedullary nail.
The lengths of the two slideways and the length of the sliding chute are set to be different in size; the positions of the fixing holes are different due to different lengths of the sliding grooves; the arrangement ensures that the positions of the left fixing hole and the right fixing hole are not on the same straight line, so that the fixing positions of the internal fixing structures are different, the acting forces of the left internal fixing structure and the right internal fixing structure are concentrated at different positions, and the stability of the intramedullary nail in the marrow cavity is ensured by multi-point fixation.
A supporting rod is arranged at the bottom of the slideway, one end of the supporting rod is integrally connected with the bottom of the slideway, and the other end of the supporting rod is integrally connected with the inner side wall of the intramedullary nail; this arrangement may enhance the stability of the slideway.
The internal fixing structure comprises a base at the bottom and an extensible structure at the upper part, and the base and the extensible structure are integrally connected; the base can follow the slide removes, but the structure that stretches out can stretch out the window is fixed on the intramedullary wall.
The extensible structure is arranged into an arc-shaped strip structure; the arc-shaped arrangement can avoid scratching the inner wall of the marrow cavity, and when the internal fixing structure is fixed in the fixing hole, the arc-shaped strip-shaped structure extends out of the window and is fixed on the inner wall of the marrow cavity.
An operating rod is arranged on the base and is connected with the base combination of the internal fixing structure; the combined connection mode can be used for taking out the operating rod after the inner fixing structure is fixed.
A transverse blocking bulge is arranged at the far end of the operating rod; the lateral blocking projection serves to fix the position of the operating lever.
A soft split snap ring is arranged on the base, the split snap ring has an upward opening, and the split snap ring is integrally connected with the base; when the operating rod is used, the operating rod is placed into the opening snap ring, and the blocking protrusion can fix the operating rod in the opening snap ring.
The lower part of the base is made of a magnetic material, and a magnetic adsorption effect is generated between the lower part of the base and the fixing hole, so that the internal fixing structure is firmly fixed in the fixing hole.
The size of the window is larger than that of the arc-shaped strip-shaped structure, and the size of the window is smaller than that of the side wall of the intramedullary nail; the position of the window corresponds to the position of the arc-shaped strip-shaped structure; the arrangement ensures that the arc-shaped strip-shaped structure can smoothly extend out of the window when the internal fixing structure is fixed.
A pipeline structure is arranged in the intramedullary nail; the operations of flushing, injecting medicine, implanting materials and the like can be performed through the pipeline structure.
The pipeline structure is set to be a cylindrical pipe, one end of the cylindrical pipe is set to be an opening, and the other end of the cylindrical pipe is provided with a circular bottom cover.
Arranging branch pipelines on the circular bottom cover, wherein the branch pipelines are arranged 2, and each branch pipeline faces to different directions; the arrangement can fully wash, inject medicine or implant materials in the bone marrow cavity.
The branch pipeline is set to be a soft cylindrical pipe; the soft branch pipeline is convenient to take out or put in the intramedullary nail.
The window is arranged on the side wall of the intramedullary nail at the position corresponding to the branch pipeline; the branch lines flow irrigation fluid, drugs or implant materials, etc. to the bone marrow cavity through the windows.
Arranging a pipeline fixing structure, wherein the pipeline fixing structure is arranged at the upper half part inside the intramedullary nail and is integrally connected with the inner side wall of the top of the intramedullary nail; the arrangement can leave the space of the lower half part inside the intramedullary nail for placing other surgical instruments or performing other operations.
The number of the pipeline fixing structures is 2, the two pipeline fixing structures are respectively distributed at the near end and the far end of the pipeline structure, and the height of the pipeline fixing structure at the near end is larger than that of the pipeline fixing structure at the far end; the near end of the pipeline structure is one end close to an operator, the far end of the pipeline structure is one end far away from the operator, and the pipeline structure has a certain inclination angle when placed on the pipeline fixing structure due to the arrangement, so that flushing liquid, liquid medicine or implant materials and the like can flow out of the pipeline structure to reach the marrow cavity.
The pipeline fixing structure is arranged as a bearing ring, and the upper end of the bearing ring is integrally connected with the side wall of the top of the intramedullary nail; the arrangement can occupy smaller space and leave more space for other operations.
A semicircular plugging sheet is arranged on the supporting ring at the far end; the plugging sheet can fix the pipeline structure and prevent the pipeline structure from slipping.
When the intramedullary nail is used, the operating rod is firstly combined and connected with the split snap ring, then the operating rod is controlled to control the movement of the internal fixing structure, the base of the internal fixing structure enters the fixing hole after the internal fixing structure is pushed to reach the position of the locking structure, the extendable structure extends out of the window and is fixed on the inner wall of the marrow cavity, then the operating rod is lifted upwards, the operating rod is lifted out of the split snap ring, and then the operating rod is taken out of the intramedullary nail; when the operations of flushing, injecting medicine, implanting material and the like need to be carried out, firstly, the pipeline structure is installed on the pipeline fixing structure, the position of the intramedullary nail is adjusted to enable the branch pipeline to be directly opposite to the affected part, then, the injector is placed into the pipeline structure to be injected, or flushing liquid, medicine or implanting material is injected into the pipeline structure and flows through the branch pipeline to reach the affected part; or, the device such as an injector or a syringe is directly placed in the cavity of the intramedullary nail without installing a pipeline structure, and the flushing liquid, the medicine or the implant material is directly injected into the marrow cavity through the window.
The above description of the embodiments is only intended to illustrate the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several modifications can be made to the present invention, and these modifications will fall within the protection scope of the claims of the present invention.
Claims (10)
1. A multifunctional intramedullary nail for internal fixation of fracture comprises an intramedullary nail main body, a slideway arranged in the intramedullary nail main body, and an internal fixation structure moving along the slideway and used for preventing the intramedullary nail from shaking; the intramedullary nail is characterized in that the intramedullary nail main body is a hexagonal polygonal cavity intramedullary nail, and a plurality of windows are arranged on the wall of the cavity; the internal fixing structure comprises an extensible structure; the window comprises a window through which the extendable structure extends; the slide way is connected with the intramedullary nail main body in an integrated mode and is consistent with the direction of the intramedullary nail, and the internal fixing structure is connected with the slide way in a combined mode.
2. The multifunctional intramedullary nail for internal fixation of bone fractures according to claim 1, wherein said slideway is provided at an edge position of middle height inside the intramedullary nail, the side of said slideway being integrally connected with the inner side wall of said intramedullary nail.
3. The multifunctional intramedullary nail for internal fixation of bone fractures according to claim 2, wherein said slideway is provided with a predetermined track; a locking structure is arranged on the preset track close to the corresponding window, after the internal fixing structure moves to the locking structure along the preset track, the lower end of the internal fixing structure is fixed at the locking structure, the upper end of the internal fixing structure is provided with the extendable structure, and the extendable structure extends out of the window and is fixed on the inner wall of the marrow cavity; the locking structure comprises a sliding chute and a fixing hole, and the fixing hole is arranged at the tail end of the sliding chute; the fixing hole is used for fixing the internal fixing structure.
4. The multifunctional intramedullary nail for internal fixation of bone fracture according to claim 3, wherein two said slideways are provided, respectively at the left and right side edges of the intramedullary nail at the middle height.
5. The multifunctional intramedullary nail for internal fixation of bone fractures according to claim 3, wherein said internal fixation structure comprises a base at the bottom and an extendable structure at the upper part, said base being integrally connected with said extendable structure; the base can follow the slide removes, but the structure that stretches out can stretch out the window is fixed on the intramedullary wall.
6. The multifunctional intramedullary nail for internal fixation of bone fractures according to claim 5, wherein said extendable structures are provided as arc-shaped strip structures; the arc-shaped arrangement can avoid scratching the inner wall of the marrow cavity, and when the internal fixing structure is fixed in the fixing hole, the arc-shaped strip-shaped structure extends out of the window and is fixed on the inner wall of the marrow cavity.
7. The multifunctional intramedullary nail for internal fixation of bone fractures according to claim 6, wherein said window has a size larger than the size of said arc-shaped strip structure and smaller than the size of the side wall of said intramedullary nail; the position of the window corresponds to the position of the arc-shaped strip-shaped structure.
8. The multifunctional intramedullary nail for internal fixation of bone fracture according to claim 1, wherein a channel structure for irrigation, drug injection and implant material operation is provided inside said intramedullary nail.
9. The multifunctional intramedullary nail for internal fixation of bone fractures according to claim 8, wherein said conduit structure is configured as a cylindrical tube, one end of which is configured as an opening and the other end is configured with a circular bottom cap; and 2-4 branch pipelines are arranged on the circular bottom cover, and each branch pipeline faces to a different direction.
10. The multifunctional intramedullary nail for internal fixation of bone fractures according to claim 9, wherein said window is provided on the side wall of said intramedullary nail at a position corresponding to said branch conduit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921777944.4U CN211156177U (en) | 2019-10-22 | 2019-10-22 | Multifunctional intramedullary nail for internal fixation of fracture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921777944.4U CN211156177U (en) | 2019-10-22 | 2019-10-22 | Multifunctional intramedullary nail for internal fixation of fracture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211156177U true CN211156177U (en) | 2020-08-04 |
Family
ID=71813793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921777944.4U Active CN211156177U (en) | 2019-10-22 | 2019-10-22 | Multifunctional intramedullary nail for internal fixation of fracture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211156177U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112617715A (en) * | 2020-12-31 | 2021-04-09 | 固安博健生物技术有限公司 | Intramedullary nail and anti-micromotion positioning assembly thereof |
| CN112617714A (en) * | 2020-12-31 | 2021-04-09 | 固安博健生物技术有限公司 | Anti-infection multifunctional intramedullary nail for fractured end of bone |
-
2019
- 2019-10-22 CN CN201921777944.4U patent/CN211156177U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112617715A (en) * | 2020-12-31 | 2021-04-09 | 固安博健生物技术有限公司 | Intramedullary nail and anti-micromotion positioning assembly thereof |
| CN112617714A (en) * | 2020-12-31 | 2021-04-09 | 固安博健生物技术有限公司 | Anti-infection multifunctional intramedullary nail for fractured end of bone |
| CN112617715B (en) * | 2020-12-31 | 2023-08-25 | 固安博健生物技术有限公司 | Intramedullary nail and anti-micro-motion positioning assembly thereof |
| CN112617714B (en) * | 2020-12-31 | 2023-08-25 | 固安博健生物技术有限公司 | Fracture broken end anti-infection type multifunctional intramedullary nail |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7963967B1 (en) | Bone preparation tool | |
| CN211156177U (en) | Multifunctional intramedullary nail for internal fixation of fracture | |
| US10492840B2 (en) | Distractor device including multiple diameter internal post and related methods | |
| RU147760U1 (en) | FENESTRATED CANULATED COMPRESSING SCREW FOR OSTEOSYNTHESIS OF FEMAL BONE FRACTURES | |
| RU2622613C2 (en) | Telescopic fenestrated cannulated compressing screw for osteosynthesis of limb bone fractures | |
| CN110623717B (en) | Intramedullary nail capable of being unfolded and fixed | |
| CN110693590B (en) | Multifunctional intramedullary nail | |
| CN203468727U (en) | Single screw type percutaneous zygopophysis pedicle screw internal fixation system | |
| CN104905901A (en) | Shank fracture traction reduction frame | |
| US20140257418A1 (en) | Surgical tool holder | |
| US11116555B2 (en) | Wing-shaped angle steel plate and a bone shaft fixation system | |
| RU2502489C1 (en) | Intramedullary osteosynthesis device | |
| RU2615279C1 (en) | Method for long tubular bones combined osteosynthesis during deformities correction for children with osteogenesis imperfecta | |
| RU2621587C2 (en) | Device set for limb bone fractures osteosynthesis | |
| CN204839705U (en) | Closed through bolt auxiliary stand of shin bone | |
| RU2475203C1 (en) | Method for intramedullary osteosynthesis of long bones | |
| RU161985U1 (en) | LOCK FOR OSTEOSYNTHESIS OF FRACTURES OF THE EXTERNAL SUMMARY OF THE SHOULDER BONE | |
| CN210644256U (en) | Injection type gel bone repair material injection device | |
| CN102274070B (en) | Sacroiliac screw guider | |
| CN215228306U (en) | Fracture reduction auxiliary device | |
| US20220378483A1 (en) | Bidirectional fixation steel plate and a bone shaft fixation system | |
| CN109045412A (en) | Percutaneous vertebroplasty local anaesthesia injection device | |
| CN209186901U (en) | Fracture of lower leg traction restorer and fracture of leg traction reduction component | |
| CN216167793U (en) | Injection device for combining bone cement with different parameters | |
| RU2465856C1 (en) | Method of surgical treatment and prevention of infectious complications of long bone fractures with using external fixation apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |