CN103976783A - Disposable fracture traction repositor - Google Patents
Disposable fracture traction repositor Download PDFInfo
- Publication number
- CN103976783A CN103976783A CN201410231277.5A CN201410231277A CN103976783A CN 103976783 A CN103976783 A CN 103976783A CN 201410231277 A CN201410231277 A CN 201410231277A CN 103976783 A CN103976783 A CN 103976783A
- Authority
- CN
- China
- Prior art keywords
- expansion link
- telescopic rod
- fine steel
- montant
- steel needle
- 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.)
- Granted
Links
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
- A61B17/60—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 for external osteosynthesis, e.g. distractors, contractors
- A61B17/66—Alignment, compression or distraction mechanisms
-
- 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
- A61B2017/564—Methods for bone or joint treatment
Abstract
Disclosed is a disposable fracture traction repositor. The repositor comprises two T-shaped bone traction needles, a telescopic rod, two telescopic rod sleeves and two seal caps. Each of the T-shaped bone traction needles comprises cross rods and a vertical rod, and external threads are formed on the surfaces of the outer ends of the vertical rods. A manual rotation handle is arranged in the middle of the telescopic rod, and external threads are formed on the outer surfaces of the two ends. internal threads matched with the external threads on the telescopic rod are formed on the inner surfaces of the lower portions of the telescopic rod sleeves, three tooth grooves are formed in the top ends of each telescopic rod sleeve, and the two telescopic rod sleeves are in threaded connection with the outsides of the two ends of the telescopic rod symmetrically. Internal threads are formed on the inner surfaces of the seal caps, and the two seal caps are in threaded connection with the outsides of the top ends of two telescopic rod sleeves. The repositor has the advantages that fracture reduction in the surgery can be simplified; a traction bed or manual traction can be replaced; 5-axis linkage enables fracture reduction is accurate; the traction reduction can be operated easily through mechanics and biomechanics; the repositor is reasonable in structural design, safe and reliable and easy to operate.
Description
Technical field
The invention belongs to technical field of medical instruments, particularly relate to a kind of disposable fracture reduction tractor.
Background technology
In fracture internal fixation operation, the reduction of the fracture is a very important step, is also a step of the most difficult operation, usually need to be aided with apparatus sled by extension table or manpower traction and the mode such as dial and complete.Although some external fracture reposition instrument product has been introduced China at present, it is metal material, and when use, 3 axle tractions strut, and fine steel needle is fixed on key two ends, struts by mechanical force, and the reduction of the fracture is more difficult.Because this fracture reposition instrument is positioned at suffering limb outside, operation technique and interior fixing implantation are caused to very large impact, therefore clinical practice is at present little.
Summary of the invention
In order to address the above problem, the object of the present invention is to provide a kind of reasonable in design, safe and reliable, the disposable fracture reduction tractor of easy operating.
In order to achieve the above object, disposable fracture reduction tractor provided by the invention comprises two pieces of "T"-shaped fine steel needles, expansion link, two expansion link sleeves and two sealing caps; Wherein "T"-shaped fine steel needle is made up of cross bar and montant, and is formed with external screw thread in the outer end face of montant; The middle part of expansion link is manual rotating handle, on the outer surface of two ends, is formed with external screw thread; In the lower inner surface of expansion link sleeve, be formed with the female thread matching with external screw thread on above-mentioned expansion link, upper end is formed with 3 teeth groove, wherein two teeth groove are for inserting the cross bar two ends on "T"-shaped fine steel needle, another teeth groove is for inserting the inner end of montant on "T"-shaped fine steel needle, and in upper-end outer surface, be formed with external screw thread, two expansion link sleeves are threaded in the outside, two ends of expansion link in symmetrical mode; On the inner surface of sealing cap, be formed with female thread, two sealing caps are threaded in respectively the outside, upper end of two expansion link sleeves.
Manual rotating handle on described expansion link is multi-edge column-shaped.
On the montant outer end of described "T"-shaped fine steel needle, externally threaded length accounts for the half of montant total length.
Described "T"-shaped fine steel needle adopts metal material to make, and expansion link, expansion link sleeve and sealing cap adopt medical grade plastic materials to make.
Disposable fracture reduction tractor provided by the invention has following beneficial effect:
1, can simplify the operation of the reduction of the fracture in operation; Alternative extension table or manpower traction;
2,5 axle interlocks can make the reduction of the fracture more accurate, and 5 axles refer to: "T"-shaped fine steel needle cross tube is an axle, and montant is an axle, 2 "T"-shaped fine steel needles totally 4 axles, and expansion link and two expansion link sleeves are 1 axle, totally 5 axles;
3, utilize Mechanics of Machinery and biomechanics to make reduction by traction more easy to operate; The use of disposable fracture reduction tractor is more conducive to realize the Wicresoft of fracture internal fixation operation; And disposable medical instrument can reduce aleopation in hospital, meet modern medical service technical requirement.
4, disposable fracture reduction tractor is installed on femur inner side, and for crossing over joint traction, does not therefore affect the various operations in marrow or outside marrow.Because disposable fracture reduction tractor major part is plastic material, therefore do not affect the x-ray inspections such as hands fluoroscopy during operation film making.
5, reasonable in design, safe and reliable, easy operating.
Brief description of the drawings
Fig. 1 is disposable bone tractor structural perspective provided by the invention.
Fig. 2 is Telescopic rod structure axonometric chart in disposable bone tractor provided by the invention.
Fig. 3 is "T"-shaped fine steel needle structural perspective in disposable bone tractor provided by the invention.
Fig. 4 is expansion link tube-in-tube structure axonometric chart in disposable bone tractor provided by the invention.
Fig. 5 is sealing cap structural perspective in disposable bone tractor provided by the invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, disposable bone tractor provided by the invention is elaborated.
As Figure 1-Figure 5, disposable bone tractor provided by the invention comprises two pieces of "T"-shaped fine steel needles 1, expansion link 2, two expansion link sleeves 3 and two sealing caps 4; Wherein "T"-shaped fine steel needle 1 is made up of cross bar 5 and montant 6, and is formed with external screw thread in the outer end face of montant 6; The middle part of expansion link 2 is manual rotating handle, on the outer surface of two ends, is formed with external screw thread; In the lower inner surface of expansion link sleeve 3, be formed with the female thread matching with external screw thread on above-mentioned expansion link 2, upper end is formed with 3 teeth groove 7, wherein two teeth groove 7 are for inserting cross bar 5 two ends on "T"-shaped fine steel needle 1, another teeth groove 7 is for inserting the inner end of montant 6 on "T"-shaped fine steel needle 1, and in upper-end outer surface, be formed with external screw thread, two expansion link sleeves 3 are threaded in the outside, two ends of expansion link 2 in symmetrical mode; On the inner surface of sealing cap 4, be formed with female thread, two sealing caps 4 are threaded in respectively the outside, upper end of two expansion link sleeves 3.
Manual rotating handle on described expansion link 2 is multi-edge column-shaped.
On montant 6 outer ends of described "T"-shaped fine steel needle 1, externally threaded length accounts for the half of montant 6 total lengths.
Described "T"-shaped fine steel needle 1 adopts metal material to make, and expansion link 2, expansion link sleeve 3 and sealing cap 4 adopt medical grade plastic materials to make.
Now as an example of Fracture of femur example, disposable fracture reduction tractor using method provided by the invention is described below:
1, "T"-shaped fine steel needle is installed: first inner side screws in 1 piece in the mode vertical with sagittal plane on patient's condyle of femur " T " shape fine steel needle 1, screw in another 1 piece of "T"-shaped fine steel needle 1 in anterior superior iliac spine leading edge perpendicular to coronalplane again, make two pins mutually vertical;
2, connection expansion link: utilize and rotate the method adjustment expansion link 2 of manual rotating handle on expansion link and the total length of two expansion link sleeves 3, then make two pieces of cross bar 5 two ends and montant 6 inner ends on "T"-shaped fine steel needle 1 insert respectively 3 teeth groove on corresponding expansion link sleeve 3, screw afterwards sealing cap 4;
3, variable triangular structure: install after disposable fracture reduction tractor, see and form a triangle from sagittal plane, article three, limit is respectively femoral shaft, expansion link 2 and the hip joint cross bar 5 to the "T"-shaped fine steel needle 1 of screw-in anterior superior iliac spine, latter two limit is fixed, and femoral shaft this edge is variable.Leg-of-mutton three summits are respectively to screw on condyle of femur " T " sliding axle that cross bar 5 and the expansion link 2 of "T"-shaped fine steel needle 1 of montant 6, hip joint and screw-in anterior superior iliac spine of shape fine steel needle 1 forms, three angles are variable angle.In the time that angle changes, variable limit is inevitable to be changed thereupon.
4, the reduction of the fracture: in the time that fracture site need to draw, can bend hip and change leg-of-mutton angle and make key elongated; When fracture has sagittal plane when displacement, the montant 6 that can screw in the "T"-shaped fine steel needle 1 of anterior superior iliac spine resets for axle; When there being coronalplane when displacement, can screw on condyle of femur " T " montant 6 of shape fine steel needle 1 resets for axle; In the time having rotation displacement, can expansion link 2 reset for axle.
Claims (4)
1. a disposable bone tractor, is characterized in that: it comprises two pieces of "T"-shaped fine steel needles (1), expansion link (2), two expansion link sleeves (3) and two sealing caps (4); Wherein "T"-shaped fine steel needle (1) is made up of cross bar (5) and montant (6), and is formed with external screw thread in the outer end face of montant (6); The middle part of expansion link (2) is manual rotating handle, on the outer surface of two ends, is formed with external screw thread; In the lower inner surface of expansion link sleeve (3), be formed with the female thread matching with the upper external screw thread of above-mentioned expansion link (2), upper end is formed with 3 teeth groove (7), wherein two teeth groove (7) are for inserting cross bar (5) two ends on "T"-shaped fine steel needle (1), another teeth groove (7) is for inserting the inner end of the upper montant (6) of "T"-shaped fine steel needle (1), and in upper-end outer surface, be formed with external screw thread, two expansion link sleeves (3) are threaded in the outside, two ends of expansion link (2) in symmetrical mode; On the inner surface of sealing cap (4), be formed with female thread, two sealing caps (4) are threaded in respectively the outside, upper end of two expansion link sleeves (3).
2. disposable bone tractor according to claim 1, is characterized in that: the manual rotating handle on described expansion link (2) is multi-edge column-shaped.
3. disposable bone tractor according to claim 1, is characterized in that: on montant (6) outer end of described "T"-shaped fine steel needle (1), externally threaded length accounts for the half of montant (6) total length.
4. disposable bone tractor according to claim 1, it is characterized in that: described "T"-shaped fine steel needle (1) adopts metal material to make, expansion link (2), expansion link sleeve (3) and sealing cap (4) adopt medical grade plastic materials to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410231277.5A CN103976783B (en) | 2014-05-28 | 2014-05-28 | Disposable fracture reduction tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410231277.5A CN103976783B (en) | 2014-05-28 | 2014-05-28 | Disposable fracture reduction tractor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103976783A true CN103976783A (en) | 2014-08-13 |
| CN103976783B CN103976783B (en) | 2016-05-25 |
Family
ID=51269126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410231277.5A Active CN103976783B (en) | 2014-05-28 | 2014-05-28 | Disposable fracture reduction tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103976783B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110840642A (en) * | 2019-12-06 | 2020-02-28 | 天津天好医疗器械有限公司 | Forearm fracture traction repositor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4978348A (en) * | 1988-05-26 | 1990-12-18 | Ilizarov Gavriil A | Compression-distraction apparatus for osteosynthesis |
| CN2137500Y (en) * | 1992-12-17 | 1993-07-07 | 邹德威 | Orthopedic unit with angular positive-negative thread screw |
| WO1999004714A1 (en) * | 1997-07-24 | 1999-02-04 | Stanislav Georgiev Nestorov | External fixator |
| CN2560310Y (en) * | 2002-08-27 | 2003-07-16 | 章祖林 | Calcaneus prizing external fixator |
| CN202288431U (en) * | 2011-09-28 | 2012-07-04 | 汤金城 | Bone fracture reductor for four limbs |
| CN202920320U (en) * | 2012-11-19 | 2013-05-08 | 汤金城 | Bone fracture repositor |
-
2014
- 2014-05-28 CN CN201410231277.5A patent/CN103976783B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4978348A (en) * | 1988-05-26 | 1990-12-18 | Ilizarov Gavriil A | Compression-distraction apparatus for osteosynthesis |
| CN2137500Y (en) * | 1992-12-17 | 1993-07-07 | 邹德威 | Orthopedic unit with angular positive-negative thread screw |
| WO1999004714A1 (en) * | 1997-07-24 | 1999-02-04 | Stanislav Georgiev Nestorov | External fixator |
| CN2560310Y (en) * | 2002-08-27 | 2003-07-16 | 章祖林 | Calcaneus prizing external fixator |
| CN202288431U (en) * | 2011-09-28 | 2012-07-04 | 汤金城 | Bone fracture reductor for four limbs |
| CN202920320U (en) * | 2012-11-19 | 2013-05-08 | 汤金城 | Bone fracture repositor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110840642A (en) * | 2019-12-06 | 2020-02-28 | 天津天好医疗器械有限公司 | Forearm fracture traction repositor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103976783B (en) | 2016-05-25 |
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