CN210408678U - Marrow cavity implant block for filling and supporting limb long bone metaphysis defect - Google Patents
Marrow cavity implant block for filling and supporting limb long bone metaphysis defect Download PDFInfo
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- CN210408678U CN210408678U CN201920684222.8U CN201920684222U CN210408678U CN 210408678 U CN210408678 U CN 210408678U CN 201920684222 U CN201920684222 U CN 201920684222U CN 210408678 U CN210408678 U CN 210408678U
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- metaphysis
- filler
- intramedullary
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Abstract
The utility model provides a marrow intracavity plant piece for filling and supporting four limbs long bone metaphysis is defective, including metaphysis filler and steel nail, metaphysis filler is class horn mouth or funnel formula structure, and the outer wall of metaphysis filler is laminated with the bone distal end inner wall that is close to the bone shaft department mutually, and the steel nail wears to locate the outside of the big aperture end or the big aperture end of metaphysis filler along the slant, and the steel nail still corresponds and is provided with the portion of exerting pressure that is used for exerting pressure downwards to the steel nail. The fracture treatment device aims to solve the problems that an existing fracture treatment tool is unreasonable, and the stability of the internal fixation fracture is not enough, and especially for old people or osteoporosis patients, the risk of internal fixation failure is reduced. The utility model discloses lay in the thighbone apart from regional pulp intracavity, rebuild the thighbone apart from to use this as the base, increase other fixtures, like elastic nail, screw, bone cement etc. reach and fill the defect, fixed firm, locally stable purpose. Belongs to the field of limb long bone metaphysis repair and reconstruction.
Description
Technical Field
The utility model relates to a be used for filling, support the damaged marrow intracavity plant cushion of the long bone metaphysis of four limbs that causes by factors such as fracture, osteopathia, tumour, wearing and tearing, select specific filler form according to local anatomical shape, defective degree, belong to bone repair and rebuild the field.
Background
At present, local defects are often encountered during treatment of wounds, bone diseases and tumors, so that treatment challenges are brought, how to effectively support the defects is mainly, and particularly for old people or patients with osteoporosis, the osteoporosis often causes insufficient fixing strength, so that treatment fails. The patient needs to undergo multiple operations (for example, the steel nail after the operation passes through the cortical bone or enters the articular cavity, the pelvic cavity and the like under the action of pressure) or the hospitalization time is prolonged, the functional result is also seriously influenced, and great health hidden troubles exist.
Disclosure of Invention
The utility model aims to provide a: the marrow cavity plant cushion block is used for filling and supporting metaphysis defect of long bones of limbs caused by factors such as fracture, bone diseases, tumor, abrasion and the like, and solves the problems that the existing fixture for treating the fracture is unreasonable, the real rehabilitation is difficult to realize especially for old people or osteoporosis patients, and great potential safety hazard exists after operation.
In order to solve the problems, the intramedullary cavity plant block for filling and supporting the metaphysis defect of the long bones of the limbs comprises metaphysis filler and a steel nail, wherein the metaphysis filler is of a horn-like or funnel-type structure, the metaphysis filler is designed according to local anatomical shape and defect degree, the outer part of the large-diameter end of the metaphysis filler is slightly lower, the inner side of the large-diameter end of the metaphysis filler is raised and extends inwards to conform to the shape of the femoral bone distance and the inner side of a femoral neck, the outer wall of the metaphysis filler is fitted with the inner wall of the far bone end close to the bone shaft, the steel nail is obliquely penetrated through the large-diameter end or the outer side of the large-diameter end of the metaphysis filler, and the steel nail is correspondingly provided with a pressing part for pressing the steel nail downwards.
In the aforementioned intramedullary cavity implant block, the outer wall of the small-caliber end of the metaphyseal filler is attached to the inner wall of the shaft at the fracture end.
In the implant block in the marrow cavity, the pressing part is an Enders needle, one end of the Enders needle extends out of the lower part of the long bone to the upper part of the metaphysis filler through the middle parts of the diaphysis and the metaphysis filler in sequence, a hook structure is bent at the end part of the Enders needle above the metaphysis filler, the opening of the hook structure faces downwards, and the steel nail is clamped in the hook structure.
In the above-mentioned intramedullary cavity plant block, the pressing portion is an intramedullary support sleeve, two opposite sides of the intramedullary support sleeve are respectively provided with a nail penetration groove, the steel nails are obliquely and sequentially penetrated in the nail penetration grooves on two sides of the intramedullary support sleeve, and one end of the intramedullary support sleeve extends into the metaphysis filler from an opening of the large-aperture end of the metaphysis filler.
Preferably, the intramedullary support sleeve is of a conical structure, the nail penetrating groove on one side of the intramedullary support sleeve penetrates through two ends of the intramedullary support sleeve, the nail penetrating groove on the other side of the intramedullary support sleeve extends to the middle of the intramedullary support sleeve from the small-diameter end of the intramedullary support sleeve, the steel nail is clamped in the nail penetrating groove in the middle of the intramedullary support sleeve, the small-diameter end of the intramedullary support sleeve has the nail penetrating grooves on two sides, and the small-diameter end of the intramedullary support sleeve can stretch out and draw back to a certain extent along the radial direction by controlling the wall thickness of the small-diameter end of the intramedullary support sleeve to be as small as possible, so that the small-diameter end of the intramedullary support sleeve can stretch into metaphysis filler or diaphysis even if the diameter of the end is slightly larger than the inner diameter of the metaphysis filler, and the fitting effect is better.
In the intramedullary cavity implant block, the steel nail is obliquely arranged outside the large-caliber end of the metaphysis filler in a penetrating way, and the steel nail is pressed on the outer surface of the large-caliber end of the metaphysis filler through the pressing part.
Compared with the prior art, the utility model discloses structural design is very simple, increase a metaphysis filler on current steel nail basis, and utilize the portion of exerting pressure to set up the steel nail downwards, when using, reset fracture department earlier, put into metaphysis filler, it is tight to embed, squeeze into the steel nail preliminary fixed fracture department, reuse the portion of exerting pressure to make the steel nail position more firm, if use the Enders needle as the portion of exerting pressure, then use according to the method that utilizes the Enders needle to treat fracture between the trochanter of femur, only after the Enders needle pierces, buckle the Enders needle upper end downwards, and utilize the position of buckling to catch on the steel nail can; if the intramedullary supporting sleeve is used as a pressing part, the steel nail is embedded in the nail penetrating grooves at two sides of the intramedullary supporting sleeve, the steel nail is pressed downwards through the upper side of the nail penetrating grooves, then bone cement is poured into the bone, and then fixtures such as metaphyseal fillers, the steel nail, the pressing part, the bone cement and the like form an integrated stable structure locally, through the pressing effect of the intramedullary supporting sleeve, the fixing effect of the steel nail can be greatly improved, the post-operation steel nail prick is effectively avoided, meanwhile, the attaching effect of the metaphyseal fillers and the backbone is excellent, and the filling and supporting effect of the bone cement and the steel nail is added. Can realize the postoperative quick recovery and normal walking of old patient, excellent in use effect.
Drawings
FIG. 1 is a schematic view of the structure of an intramedullary support sleeve used as a pressure applicator;
FIG. 2 is a schematic structural view of the intramedullary support sleeve, steel nail and metaphyseal filler of FIG. 1;
FIG. 3 is a left side view of the intramedullary support sleeve of FIG. 2;
FIG. 4 is a right side elevational view of the intramedullary support sleeve of FIG. 2;
FIG. 5 is a top plan view of the intramedullary support sleeve of FIG. 4;
fig. 6 is a schematic view of the structure when using the Enders needle as the pressing part.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the following will combine with the embodiments to clearly and completely describe the technical solutions of the present invention, and obviously, the described embodiments are only some embodiments of the present invention, but not all embodiments, and based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention.
Example 1:
referring to fig. 1 to 5, wherein reference numeral 4 denotes a long metaphysis of a limb, the embodiment provides a marrow cavity plant spacer block for filling and supporting a long metaphysis defect (including fracture, bone disease, tumor, abrasion and other factors) of the limb, comprising a metaphysis filler 1 and a steel nail 2, the metaphysis filler 1 is of a horn-like or funnel type structure, the metaphysis filler 1 is designed according to local anatomical shape and defect degree, the outer wall of the small metaphysis filler 1 at the small diameter end is attached to the inner wall of the diaphysis at the fracture end, the outer part of the large diameter end of the metaphysis filler 1 is slightly lower, the inner side is raised and extends the metaphysis femoral bone distance to the inner side of the femoral neck, the outer wall of the metaphysis filler 1 is attached to the inner wall of the bone far end near the bone shaft, the steel nail 2 is obliquely inserted to the outer side of the large diameter end of the metaphysis filler 1, and the steel nail 2 is pressed at the outer surface of the large-caliber end of the metaphysis filler 1 by the pressing part 3.
The pressing part 3 is a marrow internal support sleeve, two opposite sides of the marrow internal support sleeve are respectively provided with a nail penetration groove 31, the steel nails 2 are sequentially penetrated in the nail penetration grooves 31 on the two sides of the marrow internal support sleeve along an oblique direction, and one end of the marrow internal support sleeve extends into the metaphysis filler 1 from the opening of the large-aperture end of the metaphysis filler 1.
The intramedullary support sleeve is of a conical structure, the nail penetrating groove 31 on one side of the intramedullary support sleeve penetrates through two ends of the intramedullary support sleeve, the nail penetrating groove 31 on the other side of the intramedullary support sleeve extends to the middle of the intramedullary support sleeve from the small-diameter end of the intramedullary support sleeve, the steel nail is clamped in the nail penetrating groove in the middle of the intramedullary support sleeve, the small-diameter end of the intramedullary support sleeve has the nail penetrating grooves on two sides, and the small-diameter end of the intramedullary support sleeve can stretch out and draw back to a certain extent along the radial direction by controlling the wall thickness of the small-diameter end of the intramedullary support sleeve to the greatest extent, so that the small-diameter end of the intramedullary support sleeve can stretch into a metaphysis filler or diaphysis even if the diameter of the small-diameter end is slightly larger than the inner diameter of the metaphysis filler, and the fitting.
Example 2:
referring to fig. 6, the embodiment provides a marrow cavity plant spacer block for filling and supporting limb long bone metaphysis defects (including fracture, bone disease, tumor, abrasion and other factors), comprising metaphysis filler 1 and steel nail 2, wherein metaphysis filler 1 is of a horn-like or funnel type structure, the metaphysis filler 1 is designed according to local anatomical shape and defect degree, the outer wall of the small-caliber end of metaphysis filler 1 is attached to the inner wall of the diaphysis at the fracture end, the outer part of the large-caliber end of metaphysis filler 1 is slightly lower, the inner side is raised and extends inwards to attach the femur distance and the inner side of the femur neck, the outer wall of metaphysis filler 1 is attached to the inner wall of the bone far end near the bone shaft, and steel nail 2 is arranged outside the large-caliber end of metaphysis filler 1 along the oblique direction, and the steel nail 2 is pressed at the outer surface of the large-caliber end of the metaphysis filler 1 by the pressing part 3.
The pressing part 3 is used by selecting an Enders needle according to a method for treating intertrochanteric fracture of femur by using the Enders needle, one end of the Enders needle extends out to the upper part of the metaphysis filler 1 from the lower part of a long bone sequentially through the middle parts of a diaphysis and the metaphysis filler 1, the upper end of the Enders needle is bent downwards, the steel nail 2 is hooked by using the bent part, and the steel nail 2 is clamped in the bent part.
The above embodiments are only used for illustrating but not limiting the technical solutions of the present invention, and although the present invention is described in detail with reference to the above embodiments, those skilled in the art should understand that: the present invention may be modified or substituted with equivalents without departing from the spirit and scope of the invention, which should be construed as being limited only by the claims.
Claims (6)
1. A piece of intramedullary canal implant for filling and supporting a metaphyseal defect of a long bone of a limb, characterized in that: the metaphysis filler (1) is of a horn mouth-like or funnel-like structure, the outer wall of the metaphysis filler (1) is attached to the inner wall of the far end of a bone close to the metaphysis of the bone, the steel nail (2) penetrates through the large-caliber end or the outer side of the large-caliber end of the metaphysis filler (1) in an inclined mode, and the steel nail (2) is further correspondingly provided with a pressing portion (3) used for pressing the steel nail (2) downwards.
2. A piece of intramedullary canal implant for filling and supporting a long metaphyseal defect of a limb according to claim 1, wherein: the outer wall of the small-caliber end of the metaphysis filler (1) is attached to the inner wall of the diaphysis at the fracture end.
3. A piece of intramedullary canal implant for filling and supporting a long metaphyseal defect of a limb according to claim 1, wherein: the pressing part (3) is an Enders needle, one end of the Enders needle extends out of the lower part of a long bone to the upper part of the metaphysis filler (1) through the middle parts of the diaphysis and the metaphysis filler (1) in sequence, a hook structure is bent at the end part of the Enders needle above the metaphysis filler (1), the opening of the hook structure faces downwards, and the steel nail (2) is clamped in the hook structure.
4. A piece of intramedullary canal implant for filling and supporting a long metaphyseal defect of a limb according to claim 1, wherein: the pressing portion (3) is an intramedullary supporting sleeve, nail penetrating grooves (31) are formed in two opposite sides of the intramedullary supporting sleeve respectively, steel nails (2) penetrate through the nail penetrating grooves (31) in two sides of the intramedullary supporting sleeve in sequence in an inclined mode, and one end of the intramedullary supporting sleeve extends into the metaphysis filler (1) from an opening of a large-diameter end of the metaphysis filler (1).
5. A piece of intramedullary canal implant for filling and supporting a long metaphyseal defect of a limb according to claim 4, wherein: the intramedullary support sleeve is of a conical structure, a nail penetrating groove (31) on one side of the intramedullary support sleeve penetrates through two ends of the intramedullary support sleeve, and a nail penetrating groove (31) on the other side of the intramedullary support sleeve extends to the middle of the intramedullary support sleeve from the small-diameter end of the intramedullary support sleeve.
6. A piece of intramedullary canal implant for filling and supporting a long metaphyseal defect of a limb according to claim 1, wherein: the steel nail (2) penetrates through the outer side of the large-caliber end of the metaphysis filler (1) in an inclined mode, and the steel nail (2) is pressed on the outer surface of the large-caliber end of the metaphysis filler (1) through the pressing portion (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920684222.8U CN210408678U (en) | 2019-05-14 | 2019-05-14 | Marrow cavity implant block for filling and supporting limb long bone metaphysis defect |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920684222.8U CN210408678U (en) | 2019-05-14 | 2019-05-14 | Marrow cavity implant block for filling and supporting limb long bone metaphysis defect |
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| CN210408678U true CN210408678U (en) | 2020-04-28 |
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| CN201920684222.8U Active CN210408678U (en) | 2019-05-14 | 2019-05-14 | Marrow cavity implant block for filling and supporting limb long bone metaphysis defect |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109984873A (en) * | 2019-05-14 | 2019-07-09 | 赵滨 | It is a kind of for filling up and supporting the ossis implants block of the dry epiphysis defect of long bone of limbs |
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2019
- 2019-05-14 CN CN201920684222.8U patent/CN210408678U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109984873A (en) * | 2019-05-14 | 2019-07-09 | 赵滨 | It is a kind of for filling up and supporting the ossis implants block of the dry epiphysis defect of long bone of limbs |
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