CN115192270A - Hip joint prosthesis revision femoral stem with interlocking nail - Google Patents
Hip joint prosthesis revision femoral stem with interlocking nail Download PDFInfo
- Publication number
- CN115192270A CN115192270A CN202210983542.XA CN202210983542A CN115192270A CN 115192270 A CN115192270 A CN 115192270A CN 202210983542 A CN202210983542 A CN 202210983542A CN 115192270 A CN115192270 A CN 115192270A
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- femoral
- prosthesis
- stem
- interlocking nail
- interlocking
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3662—Femoral shafts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
- A61F2/36—Femoral heads ; Femoral endoprostheses
- A61F2/3662—Femoral shafts
- A61F2/3676—Distal or diaphyseal parts of shafts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
- A61F2002/30003—Material related properties of the prosthesis or of a coating on the prosthesis
- A61F2002/3006—Properties of materials and coating materials
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2220/00—Fixations or connections for prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
- A61F2220/0008—Fixation appliances for connecting prostheses to the body
- A61F2220/0016—Fixation appliances for connecting prostheses to the body with sharp anchoring protrusions, e.g. barbs, pins, spikes
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Cardiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
Abstract
The invention belongs to the field of medical instruments, and particularly discloses a femoral stem for revision of a hip joint prosthesis with interlocking nails, which comprises a femoral stem with a metal coating, femoral interlocking nails, aiming arms and fixing rods; the fixed rod is provided with screw threads, the aiming arm is provided with screw holes matched with the screw threads, the femoral prosthesis handle is provided with positioning holes matched with the screw threads, and the fixed rod is sequentially arranged in the screw holes and the positioning holes in a penetrating manner so that the aiming arm can be fixedly connected to the femoral prosthesis handle; the femoral prosthesis handle is provided with a locking hole matched with the femoral interlocking nail, the aiming arm is provided with a threaded hole matched with the femoral interlocking nail, one end of the femoral interlocking nail is inserted into the threaded hole, and the other end of the femoral interlocking nail is inserted into the locking hole. The problem that initial stability cannot be provided due to rotation or sinking of the prosthesis in clinical operation is solved.
Description
Technical Field
The invention belongs to the field of medical instruments, and particularly relates to a femoral stem for revision of a hip joint prosthesis with interlocking nails.
Background
The hip joint (hip joint) is formed by the relative position of the femoral head and the acetabulum, belongs to a multiaxial joint, and can perform flexion, extension, contraction, rotation and rotation motions. The acetabulum is only covered with articular cartilage on the lunar surface, and the acetabulum fossa is filled with fat, also called as Haversian gland, which can be squeezed out or sucked in along with the increase and decrease of the intra-articular pressure so as to maintain the balance of the intra-articular pressure.
Hip replacements are mainly for several reasons: 1. the joint is seriously worn; 2. damage to joint disease; 3. articular cartilage is not regenerated. Therefore, when the hip joint is severely damaged, it needs to be replaced to repair the worn joint, thereby eliminating pain, correcting joint deformity and reconstructing joint stability, restoring and improving joint function. The hip joint replacement surgery is mainly suitable for senile femoral neck fracture, congenital acetabular dysplasia, rheumatoid arthritis, femoral head necrosis, traumatic coxitis and other diseases, and can be used for hip joint replacement surgery when the patients cause dysfunction.
With the popularization of hip replacement technology, revision due to various reasons is more and more common. Currently, there are various femoral stems available for the revision of the femoral side, but in the case of revision, the proximal cancellous bone of the femur is largely damaged, and the residual chipped bone and bone cement affect the effect of the bone cement femoral stem.
Therefore, the femoral stem of the current revision case tends to use a biological stem, and the traditional revision stem is an integrated biological type distal fixation stem. The revision handle may provide a certain initial stability, but the rotation or sinking of the prosthesis still occurs in the actual clinical operation, so that the initial stability cannot be provided.
Disclosure of Invention
In order to solve the problem that initial stability cannot be provided due to rotation or sinking of a prosthesis in clinical operation, the invention aims to provide a hip joint prosthesis revision femoral stem with interlocking nails.
The technical scheme adopted by the invention is as follows:
a femoral stem for revision of hip joint prosthesis with interlocking nails comprises a femoral stem with a metal coating, femoral interlocking nails, aiming arms and fixing rods; the fixed rod is provided with screw teeth, the aiming arm is provided with a screw hole matched with the screw teeth, the femoral prosthesis handle is provided with a positioning hole matched with the screw teeth, and the fixed rod sequentially penetrates through the screw hole and the positioning hole so as to enable the aiming arm to be fixedly connected to the femoral prosthesis handle;
the femoral prosthesis handle is provided with a locking hole matched with the femoral interlocking nail, the aiming arm is provided with a threaded hole matched with the femoral interlocking nail, one end of the femoral interlocking nail is inserted into the threaded hole, and the other end of the femoral interlocking nail is inserted into the locking hole.
Femoral neck osteotomies were performed following the hip replacement procedure, followed by femoral cavity preparation. The femoral prosthesis handle is inserted into a femoral medullary cavity until the femoral prosthesis handle is properly placed, the aiming arm is connected with the femoral prosthesis handle through the fixing rod, and the femoral interlocking nail is screwed into the locking hole through the aiming arm to complete locking between the femur and the prosthesis handle and avoid rotation and sinking of the femoral handle. By means of the femoral prosthesis stem, a certain initial stability may be provided, thereby helping the physician to better manipulate to fix the femur by means of the femoral interlocking nail.
Through above-mentioned technical scheme, can avoid the prosthesis rotation or sink in clinical operation to provide better initial stability, so that with thighbone interlocking nail propelling movement to the thighbone smoothly, thereby realize the effective locking between the thighbone. Therefore, the operation efficiency can be ensured, and the replacement quality of the hip joint can be improved, so that the patient can move normally in the later period.
In one possible design, the metal coating is a tantalum metal coating. Tantalum (Tantalum) is a metal element with an atomic number of 73 and a chemical symbol Ta, and the elementary substance corresponding to the element is steel gray metal, has extremely high corrosion resistance, and does not react with hydrochloric acid, concentrated nitric acid and aqua regia under cold and hot conditions. The femoral prosthesis handle made of the material also has the characteristic of corrosion resistance, and can avoid adverse effects on the body.
In a possible design, the aiming arm comprises a fixing section provided with the threaded hole and a connecting section made of wear-resistant metal material, one end of the connecting section is fixedly connected with the fixing section, and the other end of the connecting section is provided with the threaded hole. This is beneficial for ensuring the bending strength of the connecting section. For a specific material type, stainless steel or any other suitable alloy material may be selected.
In one possible embodiment, the connecting section has a diameter D and the fastening rod has a diameter D, wherein D > D/2. So, can guarantee the intensity of linkage segment to make the dead lever steadily impel along the screw.
In one possible design, the fixation section is parallel to the axis of the femoral prosthesis stem, which is beneficial to provide a stable support force to help the femoral interlocking nail be accurately pushed into the femur.
In one possible design, the end of the fixation rod is provided with a socket head so that the fixation rod may be easily attached to the aiming arm and the femoral prosthesis stem using a socket head wrench or other auxiliary driving tool.
In one possible design, the fixing rod is sleeved with a cushion pad. Thus, certain anti-loosening effect can be achieved, and the fixing rod can effectively abut against the aiming arm and the femoral prosthesis handle. In addition, certain anti-abrasion effect can be achieved to a certain extent, namely, the phenomenon that the tightness and reliability of connection of the fixing rod are affected due to abrasion between the fixing rod and the aiming arm is avoided.
In one possible design, a plurality of ribs arranged longitudinally are arranged on the positioning seat, and the ribs are arranged at intervals along the circumferential direction of the positioning seat, so that reliable initial stability is provided.
Drawings
Fig. 1 is a schematic structural diagram of a hip prosthesis revision femoral stem with interlocking nails provided by the invention in one embodiment.
In the figure: 1-femoral prosthesis handle, 2-femoral interlocking nail, 3-aiming arm and 4-fixing rod.
Detailed Description
The invention is further described with reference to the following figures and specific embodiments.
The reasons for hip replacement are severe joint wear, joint disease damage and irreproducible joint cartilage. Therefore, when the hip joint is severely damaged, it needs to be replaced to repair the worn joint, thereby eliminating pain, correcting joint deformity and reestablishing joint stability, restoring and improving joint function. The hip joint replacement surgery is mainly suitable for senile femoral neck fracture, congenital acetabular dysplasia, rheumatoid arthritis, femoral head necrosis, traumatic coxitis and other diseases, and can be used for hip joint replacement surgery when the patients cause dysfunction.
In hip replacement surgery, various revision tools are used to assist the surgeon in performing a revision of the hip prosthesis on the patient.
According to the specific embodiment of the disclosure, the hip prosthesis revision femoral stem with the interlocking nail is provided, and can be used for hip joint replacement, so that worn joints can be repaired, pains can be eliminated, joint deformity can be corrected, joint stability can be reconstructed, joint functions can be restored and improved, the hip prosthesis revision femoral stem can be suitable for senile femoral neck fracture, congenital acetabular dysplasia, rheumatoid arthritis, femoral head necrosis, traumatic coxitis and other diseases, and the hip joint replacement operation can be carried out on the condition that the patients cause dysfunction. One specific embodiment of which is shown in fig. 1.
Referring to fig. 1, the femoral stem for the revision of hip joint prosthesis with interlocking nails comprises a femoral stem 1 with a metal coating, a femoral interlocking nail 2, an aiming arm 3 and a fixing rod 4; the fixed rod 4 is provided with threads, the aiming arm 3 is provided with a screw hole matched with the threads, the femoral prosthesis handle 1 is provided with a positioning hole matched with the threads, and the fixed rod 4 sequentially penetrates through the screw hole and the positioning hole so that the aiming arm 3 is fixedly connected to the femoral prosthesis handle 1.
The femoral prosthesis handle 1 is provided with a locking hole matched with the femoral interlocking nail 2, the aiming arm 3 is provided with a threaded hole matched with the femoral interlocking nail 2, one end of the femoral interlocking nail 2 is inserted into the threaded hole, and the other end of the femoral interlocking nail 2 is inserted into the locking hole.
Femoral neck osteotomies were performed following the hip replacement procedure, followed by femoral cavity preparation. The femoral prosthesis handle 1 is inserted into a femoral medullary cavity and moved to be placed properly, the aiming arm 3 is connected with the femoral prosthesis handle 1 through the fixing rod 4, the femoral interlocking nail 2 is screwed into the locking hole through the aiming arm 3, locking between a femur and the femoral prosthesis handle is completed, and rotation and sinking of the femoral prosthesis handle are avoided. By means of the femoral prosthesis stem 1, a certain initial stability can be provided, which helps the surgeon to better operate and fix the femur by means of the femoral interlocking nail 2.
Through above-mentioned technical scheme, can avoid the false body rotation or sink in clinical operation to provide better initial stability, so that smoothly with thighbone interlocking nail 2 propelling movement to the thighbone on, thereby realize the effective locking between the thighbone. Therefore, the operation efficiency can be ensured, and the replacement quality of the hip joint can be improved, so that the patient can move normally in the later period. Therefore, more reliable vertical stability and rotation stability can be provided on the basis of the original prosthesis, the sinking and rotation of the prosthesis are avoided, and more reliable stability is provided for bone ingrowth.
In the present disclosure, the metal coating is a tantalum metal coating. Tantalum (Tantalum) is a metal element with an atomic number of 73 and a chemical symbol Ta, and the elementary substance corresponding to the element is steel gray metal, has extremely high corrosion resistance, and does not react with hydrochloric acid, concentrated nitric acid and aqua regia under cold and hot conditions. The femoral prosthesis stem 1 thus produced also has the characteristic of corrosion resistance, and can avoid adverse effects on the body.
Of course, any other suitable metal coating material can be selected by those skilled in the art according to actual needs, and the disclosure is only exemplary.
In an embodiment provided by the present disclosure, the aiming arm 3 includes a fixing section provided with the threaded hole and a connecting section made of a wear-resistant metal material, one end of the connecting section is fixedly connected to the fixing section, and the other end of the connecting section is provided with the threaded hole. This is beneficial for ensuring the bending strength of the connecting section. For a particular material type, stainless steel or any other suitable alloy material may be selected.
In the present disclosure, the diameter of the connecting section is D, and the diameter of the fixing rod 4 is D, wherein D > D/2. Thus, the strength of the connection section can be ensured, and the fixing rod 4 can be stably pushed along the screw hole.
In the present disclosure, the fixation section is parallel to the axis of the femoral prosthesis stem 1, which provides more reliable vertical and rotational stability, avoiding subsidence and rotation of the prosthesis, and thus providing more reliable stability for bone ingrowth. Thereby, by providing a stable supporting force, the femoral interlocking nail 2 is helped to be accurately pushed into the femur.
In the present disclosure, the end of the fixation rod 4 is provided with a socket head so that the fixation rod 4 can be easily connected to the aiming arm 3 and the femoral prosthesis stem 1 using a socket head wrench or other auxiliary screwing tool.
Of course, the end of the fixing rod 4 may also be provided with a quincuncial hole or any other suitable shape of inner hole, for example, and those skilled in the art can flexibly arrange the end according to actual requirements.
In an embodiment provided by the present disclosure, a cushion is sleeved on the fixing rod 4. In this way, a certain anti-loosening effect can be achieved, so that the fixing rod 4 can effectively abut against the aiming arm 3 and the femoral prosthesis stem 1. In addition, certain anti-abrasion effect can be achieved to a certain extent, namely, the phenomenon that the tightness and reliability of connection of the fixing rod are affected due to abrasion between the fixing rod and the aiming arm 3 is avoided.
Referring to fig. 1, in the present disclosure, a plurality of ribs are longitudinally arranged on the positioning seat, and the ribs are arranged at intervals along the circumferential direction of the positioning seat, so as to provide reliable initial stability.
It should be noted that, in the present disclosure, the femoral interlocking nail is an interlocking nail used in a joint replacement operation, and is common knowledge, and therefore, the detailed description thereof is omitted here.
Example 1
In the embodiment, the hip prosthesis revision femoral stem with interlocking nails comprises a femoral interlocking nail 2, an aiming arm 3, a femoral prosthesis stem 1 with a tantalum metal coating and a fixing rod 4; the fixed rod 4 is provided with screw teeth, the aiming arm 3 is provided with screw holes matched with the screw teeth, the femoral prosthesis handle 1 is provided with positioning holes matched with the screw teeth, and the fixed rod 4 is sequentially arranged in the screw holes and the positioning holes in a penetrating manner so that the aiming arm 3 can be fixedly connected to the femoral prosthesis handle 1; the femoral prosthesis handle 1 is provided with a locking hole matched with the femoral interlocking nail 2, the aiming arm 3 is provided with a threaded hole matched with the femoral interlocking nail 2, one end of the femoral interlocking nail 2 is inserted into the threaded hole, and the other end of the femoral interlocking nail 2 is inserted into the locking hole.
In this example, the femoral stem has an extremely high corrosion resistance, and is non-reactive to hydrochloric acid, concentrated nitric acid, and aqua regia, both under cold and hot conditions. The femoral prosthesis stem 11 thus produced also has the characteristic of corrosion resistance, and can avoid adverse effects on the body.
Example 2
In the present embodiment, the structure of the aiming arm 3 is improved on the basis of embodiment 1.
The femoral stem for the revision of the hip joint prosthesis comprises a femoral interlocking nail 2, an aiming arm 3, a femoral prosthesis stem 1 with a tantalum metal coating and a fixing rod 4; the fixed rod 4 is provided with screw teeth, the aiming arm 3 is provided with screw holes matched with the screw teeth, the femoral prosthesis handle 1 is provided with positioning holes matched with the screw teeth, and the fixed rod 4 is sequentially arranged in the screw holes and the positioning holes in a penetrating manner so that the aiming arm 3 can be fixedly connected to the femoral prosthesis handle 1; the femoral prosthesis handle 1 is provided with a locking hole matched with the femoral interlocking nail 2, the aiming arm 3 is provided with a threaded hole matched with the femoral interlocking nail 2, one end of the femoral interlocking nail 2 is inserted into the threaded hole, and the other end of the femoral interlocking nail 2 is inserted into the locking hole.
Specifically, aiming arm 3 includes the canned paragraph that is equipped with the screw hole and the linkage segment of being made by wear-resisting metal material, and the one end fixed connection of linkage segment is in the canned paragraph, and the other end of linkage segment is equipped with the screw. This is beneficial for ensuring the bending strength of the connecting section. For a specific material type, stainless steel or any other suitable alloy material may be selected.
Example 3
In this embodiment, the hip prosthesis revision femoral stem comprises a femoral interlocking nail 2, an aiming arm 3, a femoral prosthesis stem 1 with a tantalum metal coating, and a fixation rod 4; the fixed rod 4 is provided with screw teeth, the aiming arm 3 is provided with screw holes matched with the screw teeth, the femoral prosthesis handle 1 is provided with positioning holes matched with the screw teeth, and the fixed rod 4 is sequentially arranged in the screw holes and the positioning holes in a penetrating manner so that the aiming arm 3 can be fixedly connected to the femoral prosthesis handle 1; the femoral prosthesis handle 1 is provided with a locking hole matched with the femoral interlocking nail 2, the aiming arm 3 is provided with a threaded hole matched with the femoral interlocking nail 2, one end of the femoral interlocking nail 2 is inserted into the threaded hole, and the other end of the femoral interlocking nail 2 is inserted into the locking hole.
Specifically, the diameter of the connecting section is 18 mm, the diameter d of the fixing rod 4 is 7 mm, and the fixing section is parallel to the axis of the femoral prosthesis handle 1, so that stable supporting force is provided, and the femoral interlocking nail 2 is accurately pushed into the femur.
Also in this embodiment, the end of the fixation rod 4 is provided with a hexagonal socket so that the physician can use a hexagonal socket wrench to connect the fixation rod 4 to the aiming arm 3 and the femoral prosthesis stem 1.
Example 4
In this embodiment, a cushion is fitted over the fixing rod 4 in addition to embodiment 3. In this way, a certain anti-loosening effect can be achieved, so that the fixing rod 4 can effectively abut against the aiming arm 3 and the femoral prosthesis stem 1. In addition, a certain anti-abrasion effect can be achieved to a certain extent, namely, the situation that the tightness and reliability of the connection of the fixing rod 4 are affected due to abrasion between the fixing rod 4 and the aiming arm 3 is avoided.
Example 5
In this embodiment, the positioning socket is modified based on embodiment 1. Specifically, set up the rib of many vertical settings on the positioning seat, the rib is laid along the circumference direction interval of positioning seat to be convenient for control, in order to provide reliable initial stability.
The present invention is not limited to the above-mentioned alternative embodiments, and any other various products can be obtained by anyone in the light of the present invention, but any changes in the shape or structure thereof, all of which fall within the scope of the present invention, fall within the protection scope of the present invention.
Claims (8)
1. A hip joint prosthesis revision femoral stem with interlocking nails is characterized by comprising a femoral prosthesis stem (1), femoral interlocking nails (2), aiming arms (3) and a fixing rod (4); the femoral prosthesis stem (1) is provided with a metal coating; the fixed rod (4) is provided with screw teeth, the aiming arm (3) is provided with a screw hole matched with the screw teeth, the femoral prosthesis handle (1) is provided with a positioning hole matched with the screw teeth, and the fixed rod (4) is sequentially arranged in the screw hole and the positioning hole in a penetrating manner so that the aiming arm (3) can be fixedly connected to the femoral prosthesis handle (1);
the femoral prosthesis handle (1) is provided with a locking hole matched with the femoral interlocking nail (2), the aiming arm (3) is provided with a threaded hole matched with the femoral interlocking nail (2), one end of the femoral interlocking nail (2) is inserted into the threaded hole, and the other end of the femoral interlocking nail (2) is inserted into the locking hole.
2. The hip prosthesis revision femoral stem with interlocking nail according to claim 1, wherein the metal coating is a tantalum metal coating.
3. The femoral stem revision hip prosthesis with interlocking nail according to claim 1, characterized in that the aiming arm (3) comprises a fixing section provided with the threaded hole and a connecting section made of wear-resistant metal material, one end of the connecting section is fixedly connected to the fixing section, and the other end of the connecting section is provided with the threaded hole.
4. The femoral stem revision hip prosthesis with interlocking nails according to claim 3, characterized in that the connecting section has a diameter D and the fixation rod (4) has a diameter D, wherein D > D/2.
5. The hip prosthesis revision femoral stem with interlocking nail according to claim 2, characterized in that the fixation section is parallel to the axis of the femoral prosthesis stem (1).
6. The femoral stem for revision of hip prosthesis with interlocking nail according to claim 1, characterized in that the end of the fixation rod (4) is equipped with hexagonal socket.
7. The hip prosthesis revision femoral stem with interlocking nail according to claim 1, characterized in that the fixing rod (4) is sleeved with a cushion pad.
8. The hip prosthesis revision femoral stem with interlocking nail according to claim 1, wherein the positioning seat is provided with a plurality of ribs arranged longitudinally, and the ribs are arranged at intervals along the circumferential direction of the positioning seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210983542.XA CN115192270A (en) | 2022-08-16 | 2022-08-16 | Hip joint prosthesis revision femoral stem with interlocking nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210983542.XA CN115192270A (en) | 2022-08-16 | 2022-08-16 | Hip joint prosthesis revision femoral stem with interlocking nail |
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| CN115192270A true CN115192270A (en) | 2022-10-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210983542.XA Pending CN115192270A (en) | 2022-08-16 | 2022-08-16 | Hip joint prosthesis revision femoral stem with interlocking nail |
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| CN (1) | CN115192270A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117224290A (en) * | 2023-11-16 | 2023-12-15 | 北京贝思达生物技术有限公司 | Radius small head joint rebuilding and repairing system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206453878U (en) * | 2016-08-31 | 2017-09-01 | 李亚峰 | A kind of locking board fixer of novel thighbone handle prosthese and Periprosthetic fracture |
| CN109431658A (en) * | 2018-10-31 | 2019-03-08 | 张建林 | Interlocking type femoral bone end prosthesis device for preventing hip-joint replacement prosthesis from sinking |
| CN215384910U (en) * | 2021-06-29 | 2022-01-04 | 天津医科大学总医院 | Biological femoral stem prosthesis and periprosthetic fracture fixing system |
-
2022
- 2022-08-16 CN CN202210983542.XA patent/CN115192270A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206453878U (en) * | 2016-08-31 | 2017-09-01 | 李亚峰 | A kind of locking board fixer of novel thighbone handle prosthese and Periprosthetic fracture |
| CN109431658A (en) * | 2018-10-31 | 2019-03-08 | 张建林 | Interlocking type femoral bone end prosthesis device for preventing hip-joint replacement prosthesis from sinking |
| CN215384910U (en) * | 2021-06-29 | 2022-01-04 | 天津医科大学总医院 | Biological femoral stem prosthesis and periprosthetic fracture fixing system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117224290A (en) * | 2023-11-16 | 2023-12-15 | 北京贝思达生物技术有限公司 | Radius small head joint rebuilding and repairing system |
| CN117224290B (en) * | 2023-11-16 | 2024-02-02 | 北京贝思达生物技术有限公司 | Radius small head joint rebuilding and repairing system |
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