CN116919553A - Olecranon fracture fixing device - Google Patents
Olecranon fracture fixing device Download PDFInfo
- Publication number
- CN116919553A CN116919553A CN202310951098.8A CN202310951098A CN116919553A CN 116919553 A CN116919553 A CN 116919553A CN 202310951098 A CN202310951098 A CN 202310951098A CN 116919553 A CN116919553 A CN 116919553A
- Authority
- CN
- China
- Prior art keywords
- ulna
- olecranon
- spacer
- fracture
- locking member
- 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.)
- Pending
Links
- 208000017013 ulna fracture Diseases 0.000 title claims abstract description 22
- 210000000623 ulna Anatomy 0.000 claims abstract description 78
- 208000010392 Bone Fractures Diseases 0.000 claims abstract description 32
- 206010017076 Fracture Diseases 0.000 claims abstract description 30
- 210000002221 olecranon process Anatomy 0.000 claims abstract description 28
- 238000005452 bending Methods 0.000 claims description 53
- 238000002513 implantation Methods 0.000 claims description 34
- 125000006850 spacer group Chemical group 0.000 claims description 33
- 239000007943 implant Substances 0.000 description 16
- 239000011148 porous material Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 208000002658 Intra-Articular Fractures Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 210000004095 humeral head Anatomy 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 238000007920 subcutaneous administration Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/683—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin comprising bone transfixation elements, e.g. bolt with a distal cooperating element such as a nut
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/686—Plugs, i.e. elements forming interface between bone hole and implant or fastener, e.g. screw
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/8695—Washers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B2017/8655—Pins or screws or threaded wires; nuts therefor with special features for locking in the bone
Abstract
The application belongs to the technical field of medical appliances, and particularly relates to an olecranon fracture fixing device; the bone fracture fixing device is mainly used for fixing the transverse fracture of a patient and the olecranon with a longitudinal split fracture line; by setting up: a fixation frame for implanting into the ulna through the olecranon to fix the olecranon, a first washer and a first locking member connected to the fixation frame for pressurizing a split fracture line between the olecranon and the ulna, and a second washer and a second locking member for pressing the fixation frame against the ulna ridge so that the fixation frame does not protrude, when in use; mainly solves the following problems: when the traditional olecranon fracture fixing device is used for fixing the fracture of a patient, although the transverse fracture can be fixed, the longitudinal fracture of the patient cannot be fixed under pressure, and the problem that an internal fixture slides or backs up is prevented.
Description
Technical Field
The application belongs to the technical field of medical appliances, and particularly relates to an olecranon fracture fixing device.
Background
The posterior aspect of the proximal ulna is called the subcutaneous protuberance, which forms a semilunar incision with the anterior ulna coronary process, and this incision forms the ulnar humeral joint with the humeral head with only flexion and extension. Olecranon fracture refers to intra-articular fracture with a semilunar notch, belongs to intra-articular fracture, has high fracture reduction requirement, and requires early functional training after operation.
At present, when fixing the olecranon fracture of a patient clinically, a sled type bone fracture plate can be adopted for fixing, but the olecranon of many patients has longitudinal fracture lines, and when the instrument is used for fixing the fracture of the patient, the transverse fracture can be fixed, but the longitudinal fracture of the patient cannot be fixed.
The present application addresses the above-described problems by providing an olecranon fracture fixation device.
Disclosure of Invention
In order to overcome the problems in the background art, the application adopts the following technical scheme:
an olecranon fracture fixation device comprising:
a fixation frame for implantation into the ulna through the olecranon to fix the olecranon fracture;
a first spacer and a first locking member for pressurizing a longitudinal fracture between the olecranon and the ulna; the first gasket is connected with the fixed frame, and is positioned at the left side or the right side of the ulna after the fixed frame is implanted into the ulna through the olecranon, wherein the first locking piece is implanted into the ulna through the first gasket; to press the first spacer against the fixation frame such that the first locking member simultaneously presses and fixes the olecranon with the first spacer;
a second spacer and a second locking member for locking the fixation frame to the ulna such that the fixation frame is in close apposition with the ulna ridge; the second locking member is implanted into the ulna through the second spacer such that the second spacer abuts the fixation frame under the influence of the first locking member.
In some embodiments of the application, the fixed frame comprises: the device comprises a first part, a second part and a bending part for connecting the first part with the second part, wherein the bending part is arranged between the first part and the second part, and the first part is opposite to the second part in position.
Further, the first portion, the second portion and the bending portion are integrally formed; and the first part, the second part and the inside of the bending part are hollow.
Further, the outer diameter of the bending portion is the same as the outer diameter of the first portion, wherein the inner diameter of the bending portion is smaller than the inner diameter of the first portion.
In this embodiment, the outer wall of the bending portion is formed with an undercut, and a third locking member is disposed in the ulna, where the third locking member is in an engaged state with the undercut both during implantation of the third locking member in the ulna and after implantation in the ulna.
In this embodiment, the second pad is pressed against the first portion and the second portion by the second locking member, and the second pad is spaced from the bending portion, wherein the third locking member is implanted into the ulna of the patient between the second pad and the bending portion when the second pad is fixed.
In this embodiment, the first pad has a connection end, and is connected to the first portion or the second portion through the connection end, where the first pad can be close to or far from the curved portion on the first portion or the second portion.
In this embodiment, the connecting end of the first spacer is slidably and detachably connected to the first portion or the second portion, so that the first spacer moves along the first portion or the second portion.
Further, the first spacer is provided with an implantation hole, wherein the first locking piece is penetrated by the implantation hole and implanted into the ulna; in this state, the first pad does not move relatively, and is pressed against the fracture between the olecranon and the ulna longitudinally by the first locking member, so that the fracture is fixed.
The application has the beneficial effects that:
1. setting the inner diameter of the bending part to be smaller than the inner diameter of the first part by setting the bending part and setting the undercut on the outer wall of the bending part; in the process of implanting the third locking piece into the ulna of a patient, the bending part can be prevented from being broken due to stress, and the problem that the bending part is broken through when the third locking piece is placed into the ulna, so that an internal fixture cannot be kept stable through the locking piece and the ulna is avoided.
2. Through setting up first gasket and first locking piece, when the patient had fore-and-aft broken line, through first gasket and first locking piece, by the patient in the ulna side of controlling or inside and outside when fixed, pressurized patient fracture department to can also fix the fore-and-aft fracture department that the patient exists when fixing the transverse fracture of patient's olecranon, in order to make up the not enough of current internal fixation apparatus.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present application;
FIG. 2 is a schematic view of a first part of the structure of the present application;
FIG. 3 is a schematic top view of the overall structure of the present application;
FIG. 4 is a schematic view of a second part of the structure of the present application;
FIG. 5 is a schematic view of the first locking member and the second locking member according to the present application;
FIG. 6 is a schematic diagram of a first gasket and a second gasket according to the present application;
FIG. 7 is a schematic view of a first bending section according to the present application;
FIG. 8 is a schematic view of a fastening structure according to the present application;
FIG. 9 is a schematic view of a second gasket construction according to the present application;
FIG. 10 is a schematic view of a first gasket construction according to the present application;
in the figure, 1, a first part; 11. a first implant portion; 112. a first connection portion; 1121. a first bending section; 12. a second portion; 121. a second implant; 122. a second connecting portion; 123. a second bending section; 13. a bending part; 131. undercut; 14. a first gasket; 141. a connection end; 142. an implantation hole; 143. a first locking member; 144. a third connecting groove; 15. a second gasket; 151. a first connection groove; 152. a second connecting groove; 153. a groove; 154. a first hole; 155. a second hole; 156. a second locking member; 16. and a third locking member.
Detailed Description
The following detailed description of the embodiments of the present application will be made more apparent to those skilled in the art from the following detailed description, in which the application is embodied in several, but not all, embodiments of the application. The application may be embodied or applied in other specific forms and features of the following examples and examples may be combined with each other without conflict, all other examples being contemplated by those of ordinary skill in the art without undue burden from the present disclosure, based on the examples of the application.
Fig. 1 shows the main technical content of the present embodiment, and the present embodiment provides an olecranon fracture fixation device, which includes:
a fixation frame for implantation into the ulna through the olecranon to fix the olecranon fracture;
the first pad 14 and the first locking piece 143 for pressurizing a fracture between the olecranon and the ulna in the longitudinal direction; the first pad 14 is connected to the fixation frame, and the first pad 14 is positioned on the left or right side of the ulna after the fixation frame is implanted into the ulna through the olecranon, wherein the first locking piece 143 is implanted into the ulna through the first pad 14; to press the first pad 14 against the fixation frame such that the first locking piece 143 simultaneously presses the olecranon with the first pad 14;
second washer 15 and second locking member 156 for locking the fixation frame to the ulna such that the fixation frame is in close apposition with the ulna ridge; the second locking member 156 is implanted into the ulna through the second washer 15 such that the second washer 15 is forced against the fixation frame.
Referring to fig. 1 to 4, in the present embodiment, the fixing frame includes: the device comprises a first part 1, a second part 12 and a bending part 13 for connecting the first part 1 and the second part 12, wherein the bending part 13 is arranged between the first part 1 and the second part 12, and the first part 1 is opposite to the second part 12; more specifically, the first portion 1 comprises: a first implant part 11, a first connection part 112, wherein the first connection part 112 connects the first implant part 11 with the bending part 13, and a space exists between the first implant part 11 and the bending part 13; in addition, the first implanted part and the bending part 13 are in parallel relation; the bending part 13 is positioned at a level higher than that of the first implantation part; the second portion 12 includes: a second implant part 121 at the same level as the first implant part 11 and parallel to the first implant part, and a second connection part 122 provided to be connected to the first connection part, more preferably, the length of the first implant part is longer than that of the second implant part 121; when in use, two pore canals are formed on the olecranon of the ulna of a patient towards the ulna, and the first implantation part and the second implantation part 121 are respectively and independently implanted into the 142 pore canals; while bend 13 is located near the ulnar ridge of the patient.
Further, the first connecting portion has a first bending section 1121, the second connecting portion 122 has a second bending section 123, and after the first implant portion and the second implant portion 121 are respectively and individually implanted into the open hole, the first bending section 1121 and the second bending section 123 can be attached to the radian of the olecranon of the ulna of the patient; to prevent loosening of the patient's lateral fracture site.
Referring to fig. 1 to 4, in the present embodiment, the first portion 1, the second portion 12 and the bending portion 13 are integrally formed, or the first portion 1, the second portion 12 and the bending portion 13 may be connected by spot welding, wherein the first portion 1, the second portion 12 and the bending portion 13 are preferably integrally formed, more specifically, the first portion 1, the second portion 12 and the bending portion 13 are hollow, and in this arrangement, after the hollow first portion 1, the hollow second portion 12 and the bending portion 13 are implanted in a patient, the burden of the patient's arm can be relatively reduced. Meanwhile, the hollow design is convenient for the insertion of the gram-type needle guide internal fixture, and the resistance for the insertion into the intramedullary canal is also convenient to reduce.
Further, the first implantation portion has a first opening and a second opening, the second implantation portion 121 has a third opening and a fourth opening, wherein the centers of the first opening and the second opening coincide with the axis of the first implantation portion, the first opening is disposed at the end point of the first implantation portion, the second opening is disposed at the outer wall of the first connection portion, similarly, the centers of the third opening and the fourth opening coincide with the axis of the second implantation portion 121, the third opening is disposed at the end point of the second implantation portion 121, and the fourth opening is disposed at the outer wall of the second connection portion 122; in use, the k-wire can be inserted into the first and second implant parts 121 through the first and third openings; and then the second opening and the fourth opening penetrate out.
Referring to fig. 1 and 8, more specifically, the outer diameter of the bending part 13 is the same as the outer diameters of the first and second parts 1 and 12, wherein the inner diameter of the bending part 13 is smaller than the inner diameter of the first part 1; such that the wall thickness at the bend 13 is greater than the wall thickness of the first and second portions 1, 12; more specifically, the outer wall of the bending portion 13 is formed with an undercut 131, and the third locking member 16 is disposed in the ulna, and the third locking member 16 is in an engaged state with the undercut 131 both during and after the implantation of the third locking member 16 in the ulna; when the locking device is used, the thickened bending part 13 and the undercut 131 are arranged, so that the bending part 13 is not damaged in the implantation process of the third locking piece 16; the problem that the third locking piece 16 breaks through the bent portion 13 when placed in the ulna, so that the internal fixture cannot be kept stable with the ulna by the locking piece is also avoided.
More preferably, the fixing frame is made of medical stainless steel with excellent corrosion resistance, biocompatibility and antibacterial property; for example: 316LVM stainless steel, tiNbZr alloy, etc., and the same materials as the fixing frame are used for the first gasket 14 and the second gasket 15.
Referring to fig. 1-2 and fig. 5-6, in the present embodiment, the second gasket 15 is pressed against the first portion 1 and the second portion 12 by the second locking member 156, and one end of the second gasket 15 is spaced from the bending portion 13; with the second washer 15 fixed, the third locking member 16 is implanted in the ulna of the patient between the second washer 15 and the bent portion 13, and after the third locking member 16 is implanted in the ulna of the patient, the end of the third locking member 16 not implanted in the ulna of the patient also acts on (presses) the second washer 15, more specifically, the second washer 15 has: a first hole 154 and a second hole 155, wherein the first hole 154 and the second hole 155 penetrate through the second gasket 15, and the second locking members 156 are provided in two and are respectively and independently implanted in the first hole 154 and the second hole 155; and during implantation, the two secondary locking members 156 are implanted into the patient's ulna in a state that is perpendicular or tends to be perpendicular to the patient's ulna; after the two second locking members 156 are implanted in the patient's ulna, both second locking members 156 are positioned between the first portion 1 and the second portion 12; therefore, the first part 1 and the second part 12 cannot be separated from the ulna of the patient, and the purpose of fixing the fracture part of the ulna of the patient is achieved.
Referring to fig. 1-3 and 9, it is further preferred that the second spacer 15 has a first connecting groove 151 and a second connecting groove 152 disposed in relation to each other, and that when the second spacer 15 is attached to the first and second portions 1, 12, a portion of the first portion 1 is positioned in the first connecting groove 151 and a portion of the second portion 12 is positioned in the second connecting groove 152 to prevent sliding of the second spacer 15 when the second locking member 156 is implanted in the ulna of the patient.
More specifically, the second spacer 15 has a recess 153 and after the third locking member 16 is implanted in the ulna of the patient between the second spacer 15 and the bend 13, a portion of the third locking member 16 is positioned within the recess 153.
In addition, the second gasket 15 is further provided with a k-pin hole, wherein the k-pin hole is formed from the top end face to the bottom end face of the second gasket 15, and penetrates the second gasket 15; in use, the second gasket 15 is temporarily secured by passing a k-wire through the k-wire hole.
Referring to fig. 1, 7 and 10, in this embodiment, the first pad 14 has a connection end 141, and is connected to the first portion 1 or the second portion 12 through the connection end 141, where the first pad 14 can be close to or far away from the bending portion on the first portion 1 or the second portion 12, more specifically, the connection end 141 of the first pad 14 is in a "C" shape or a "U" shape, and the first pad 14 is slidably and detachably connected to the first portion 1 or the second portion 12 through the connection end 141, and in use, the first pad 14 can be close to or far away from the bending portion on the first portion 1 or the second portion 12, and in performing pressure fixing on a split fracture line for a patient, the movable first pad 14 can be fixed by pressing at a suitable position according to different positions of the split fracture line; in addition, the first gasket 14 can also be moved to the first bending section 1121 or the second bending section 123.
Referring to fig. 1 and 5; more specifically, the first spacer 14 is provided with an implantation hole 142, wherein the first locking member 143 is inserted through the implantation hole 142 and implanted into the ulna; in this state, the first spacer 14 does not move relatively, and the first spacer 14 is pressurized against the fracture between the olecranon and the ulna in the longitudinal direction by the first locking member 143, so that the fracture is fixed; more preferably, the implantation hole 142 is a threaded hole, the first locking member 143 is a first fixing screw, and in use, the fixing screw is screwed into the ulna of the patient through the threaded hole and engages with the threads of the threaded hole, and at this time, the first gasket 14 and the second gasket 15 are in a vertical relationship;
referring to fig. 5 and 10, in the present embodiment, the first spacer 14 further has a third connection groove 144, wherein the first implant part 11 or the second implant part 121 is positioned in the third connection groove 144 after the first locking member 143 is implanted in the ulna through the implant hole 142; thereby allowing the first gasket 14 to remain stable.
In other embodiments (not shown), the first shims 14 may be provided in several numbers, and each of the several first shims 14 can be slid onto and removed from the first section 1 or the second section 12.
In the present embodiment, the first locking piece 143, the second locking piece 156, and the third locking piece 16 are identical in construction.
The application method of the application comprises the following steps:
1. two pore canals are formed in the olecranon of the ulna of a patient towards the ulna through a gram needle, the gram needle is fixed and kept in bone, a first implantation part and a second implantation part are placed in the pore canals through a gram needle, and then the gram needle is pulled out, so that the first implantation part and the second implantation part are kept in the due pore canals; and the bending part is positioned near the ulna ridge of the patient, wherein the first bending section of the first part and the second bending section of the second part are jointed with the olecranon of the patient; so that the olecranon ulna of the patient is attached to the ulna;
2. two holes for implanting second locking pieces are formed in the ulna of a patient, the holes are formed among the first part, the second part and the bending part, a second gasket is arranged on the first part and the second part, and then the two second locking pieces are screwed into the holes on the ulna through the first holes and the second holes formed in the second gasket until the two second locking pieces are screwed, so that the transverse fracture of the olecranon of the ulna of the patient is fixed once;
3. a hole perpendicular to the axis of the second locking piece is formed in the ulna of the patient, the hole is formed between the bending part and the first implantation part/the second implantation part, the implantation hole of the first gasket is aligned with the hole, the first locking piece is used for screwing into the hole, and the first gasket cannot rotate under the action of the connecting end of the first gasket and the third connecting groove; thus, the longitudinal split fracture line of the patient is pressurized, and the fracture position of the patient is bonded and fixed.
4. After the second gasket is placed, the third locking piece is implanted into the ulna of the patient between the second gasket and the bending part, and at the moment, the third locking piece and the undercut are all in an engagement state, so that the phenomenon that the fixing frame is retracted is avoided, the skin is jacked, and soft tissue irritation is generated.
The above description of embodiments is only for the understanding of the present application. It should be noted that it will be apparent to those skilled in the art that modifications can be made to the present application without departing from the principles of the application, and such modifications will fall within the scope of the claims.
Claims (10)
1. An olecranon fracture fixation device, comprising:
a fixation frame for implantation into the ulna through the olecranon to fix the olecranon;
a first spacer and a first locking member for pressurizing a longitudinal fracture between the olecranon and the ulna; the first gasket is connected with the fixed frame, and is positioned at the left side or the right side of the ulna after the fixed frame is implanted into the ulna through the olecranon, wherein the first locking piece is implanted into the ulna through the first gasket; to press the first spacer against the fixation frame such that the first locking member simultaneously presses and fixes the olecranon with the first spacer;
a second spacer and a second locking member for locking the fixation frame to the ulna such that the fixation frame is in close apposition with the ulna ridge; the second locking member is implanted into the ulna through the second spacer such that the second spacer abuts the fixation frame.
2. The ulna olecranon fracture fixation device of claim 1, wherein the fixation frame comprises: the device comprises a first part, a second part and a bending part for connecting the first part with the second part, wherein the bending part is arranged between the first part and the second part, and the first part is opposite to the second part in position.
3. The ulna olecranon fracture fixation device of claim 2, wherein the first portion, the second portion and the bend are integrally formed; and the first part, the second part and the inside of the bending part are hollow.
4. The ulna olecranon fracture fixation device of claim 2, wherein the outer diameter of the bend is the same as the outer diameter of the first portion, wherein the inner diameter of the bend is smaller than the inner diameter of the first portion.
5. The olecranon fracture fixation device of claim 1, wherein an outer wall of the bending portion is formed with an undercut and a third locking member is provided for implantation into the ulna, wherein the third locking member is in engagement with the undercut both during and after implantation into the ulna.
6. The olecranon fracture fixation device of claim 2, wherein the second spacer is pressed against the first and second portions with the second spacer being at a distance from the bend by the second locking member, wherein the third locking member is implanted in the ulna of the patient between the second spacer and bend when the second spacer is fixed.
7. The olecranon fracture fixation device of claim 2, wherein the first spacer has a connection end and is connected to the first portion or the second portion by the connection end, wherein the first spacer is movable on the first portion or the second portion toward or away from the curved portion.
8. The ulna olecranon fracture fixation device of claim 7, wherein the connection end of the first spacer is slidably and detachably connected to the first portion or the second portion such that the first spacer moves along the first portion or the second portion.
9. The olecranon fracture fixation device of claim 8, wherein the first spacer is provided with an implantation hole, wherein the first locking member is passed through the implantation hole and implanted into the ulna; in this state, the first pad does not move relatively, and is pressed against the fracture between the olecranon and the ulna longitudinally by the first locking member, so that the fracture is fixed.
10. The olecranon fracture fixation device of any one of claims 1-9, wherein the first, second and third locking members are identically constructed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310951098.8A CN116919553A (en) | 2023-07-31 | 2023-07-31 | Olecranon fracture fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310951098.8A CN116919553A (en) | 2023-07-31 | 2023-07-31 | Olecranon fracture fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116919553A true CN116919553A (en) | 2023-10-24 |
Family
ID=88378936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310951098.8A Pending CN116919553A (en) | 2023-07-31 | 2023-07-31 | Olecranon fracture fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116919553A (en) |
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| US20080077132A1 (en) * | 2006-09-25 | 2008-03-27 | Medoff Robert J | Bone fixation device having integral fixation member |
| US20090118769A1 (en) * | 2007-11-02 | 2009-05-07 | Sixto Jr Robert | Fracture Fixation Plate for the Proximal Radius |
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| CN219089603U (en) * | 2022-11-01 | 2023-05-30 | 上海凯利泰医疗科技股份有限公司 | Bone fracture plate convenient to fracture is fixed |
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