CN204890140U - External observing and controlling appearance of closed reduction in human femoral fracture art - Google Patents
External observing and controlling appearance of closed reduction in human femoral fracture art Download PDFInfo
- Publication number
- CN204890140U CN204890140U CN201520538800.9U CN201520538800U CN204890140U CN 204890140 U CN204890140 U CN 204890140U CN 201520538800 U CN201520538800 U CN 201520538800U CN 204890140 U CN204890140 U CN 204890140U
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- pointer
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- pipe
- angular readings
- length scale
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Abstract
The utility model discloses external observing and controlling appearance of closed reduction in human femoral fracture art relates to a survey control instrument that is used for medical orthopedics field, including sleeve pipe I, sleeve pipe II, connecting sleeve I, connecting sleeve II, angle pointer, angle reading subassembly and length graded tube, sleeve pipe I passes and perpendicular to connecting sleeve I, and sleeve pipe II passes and perpendicular to connecting sleeve II, angle reading subassembly includes angle reading dial, angle reading dial graded tube and accepts the chamber that angle reading dial graded tube one end is connected with connecting sleeve II, length graded tube one end is connected with connecting sleeve I, and the other end extends to accepts the intracavity, the length graded tube is equipped with the pointer guide way, and the angle pointer is fixed a position in the pointer guide way. The utility model has the advantages of simple structure, easy and simple to handle, positioning accuracy is high, the cost of manufacture is low, it can reduce the wound to the patient at the control thighbone rotation angle and removal length of external accuracy, effectively improves closed minimal access surgery's precision and reduction of the fracture effect.
Description
Technical field
This utility model relates to a kind of Survey control instrument for Medical orthopaedic field, particularly the external measurement and control instrument of closed reduction in a kind of fracture operation.
Background technology
Closed reduction Interlocking intramedullary fixation has become a kind of treats the most frequently used method of fracture of shaft of femur.Closed reduction Interlocking intramedullary fixation can reduce the wound in operation, has Wicresoft, goes out insufficiency of blood, the advantage such as early ambulant functional exercise, can improve the healing rate of fracture.This Therapeutic Method has more and more been widely used in clinical, for the patient of Fracture of femur, when using closed reduction fracture end and femoral interlocking nail is inserted by Wicresoft, under not looking at straight, accurately control Fracture of femur end when reseting fracture in vitro the anglec of rotation and length are even more important, but accurate control femoral rotation angle and movable length are intractable problems always in operation.
Current good solution is the reset adopting medical computer navigation system to carry out assist control fracture, but a set of operation guiding system is expensive, about needs tens million of RMB, also all needs external import, and the hospital of the domestic overwhelming majority cannot popularize.So, current most of orthopedist still adopts the method for fluoroscopy during operation whether to control the anglec of rotation and length completely to control the fracture end after closed reduction, neither one survey tool carries out more accurate Survey control, can only judge according to the clinical experience of operator doctor, often application condition is large, according to domestic report, error rate is more than 50%.
Summary of the invention
The purpose of this utility model is to provide the external measurement and control instrument of closed reduction in a kind of human femur under loading fracture operation, this measurement and control instrument has the features such as structure is simple, easy and simple to handle, positioning precision is high, cost of manufacture is low, it can control femoral rotation angle and movable length in vitro accurately, effectively solves above-mentioned background technology Problems existing.
The technical scheme that this utility model adopts for achieving the above object is: the external measurement and control instrument of closed reduction in a kind of human femur under loading fracture operation, comprise sleeve pipe I, sleeve pipe II, branch sleeve I, branch sleeve II, angle indicator, angular readings assembly and length scale pipe, described sleeve pipe I and sleeve pipe II be respectively arranged with run through its separately upper and lower surface for locating pin hole I and the pin hole II of Kirschner wire, sleeve pipe I is axially vertical with branch sleeve I through branch sleeve I, and sleeve pipe II is with branch sleeve II axis vertical through branch sleeve II; The angular readings dial scale pipe that described angular readings assembly comprises rounded angular readings dish and vertically extended to form by the rear end face of angular readings dish, angular readings dial scale pipe is coaxially connected with branch sleeve II away from angular readings dish one end, and angular readings assembly also comprises and to be extended back the host cavity formed by angular readings dish front end face; Length scale pipe one end is coaxially connected with branch sleeve I, and the length scale pipe other end extends in the host cavity of angular readings assembly, and length scale pipe can move vertically and radial rotating in host cavity; Described length scale pipe is also provided with the pointer gathering sill for orientation angle pointer, and angle indicator is positioned in pointer gathering sill and also can moves forward and backward along pointer gathering sill.
Further technical scheme of the present utility model is: described angle indicator comprises slide block and is vertically connected on the pointer on slide block, described pointer gathering sill is extended back by the front end face of length scale pipe and is formed, pointer gathering sill comprises for the locating slot of positioning sliding block and the narrow slit for passing for pointer, described slide block is positioned in the locating slot of pointer gathering sill, and pointer also protrudes in the outside of length scale pipe through narrow slit.
Further technical scheme of the present utility model is: described branch sleeve I is provided with the trip bolt I for locking sleeve I, and branch sleeve II is provided with the trip bolt II for locking sleeve II.
Further technical scheme of the present utility model is: described angular readings assembly is also provided with the lock-screw for locking the length scale pipe being positioned at host cavity.
In this utility model human femur under loading fracture operation, the external measurement and control instrument of closed reduction has following beneficial effect:
1. utilize the external measurement and control instrument of closed reduction in this utility model human femur under loading fracture operation to carry out corrective therapy to fracture, namely preoperatively labeled in vitro is passed through, CT scan and Computerized three-dimensional software carry out sham operated, by CT data by Computerized three-dimensional software processes, and carry out sham operated Fracture of femur end is resetted completely, obtain the pivoting angle data after accurate reset and length data, in art, Kirschner wire is squeezed at gauge point Vertical dimension femoral bone cavitas medullaris center in vitro, by in this utility model human femur under loading fracture operation closed reduction external measurement and control instrument traction suffering limb and Survey control two Kirschner wire distances reach preoperative sham operated measure length value, realize femur length accurately to control, control to rotate the angular values that Kirschner wire reaches the measurement of preoperative sham operated by this observing and controlling instrument again, thus realize femoral rotation Angle ambiguity accurately, finally reach the identical desirable reset effect resetted completely with the operation plan of pre-operative simulation.Measurement and control instrument of the present utility model has the advantages such as structure is simple, easy and simple to handle, positioning precision is high, cost of manufacture is low, it can control femoral rotation angle and movable length in vitro accurately, reduce the wound to patient, the equipment without the need to costliness also can reach the control that resets more accurately.This observing and controlling instrument is utilized to treat fracture patient, to effectively improve precision and the reduction of the fracture effect of closed Minimally Invasive Surgery, also the operation standard of orthopaedics industry will be improved, recover after being conducive to corrective surgery, and promote the technical development in orthopaedic trauma Minimally Invasive Surgery field greatly, orthopaedics academic development is very helpful, also will benefits from the patient of vast orthopaedic trauma, allow happier the getting well and improve the quality of living of patient.
2. in this utility model human femur under loading fracture operation, the external measurement and control instrument of closed reduction is provided with lock-screw for locking the length scale pipe being positioned at host cavity, after length and angle adjustment complete by lock-screw by length scale pipe locking positioning, reading can be read very easily; And be positioned at by angle indicator in pointer gathering sill, can move near angular readings dish by angle indicator after having located along pointer gathering sill, reading is more accurate, effectively raises positioning precision of the present utility model.
Below in conjunction with drawings and Examples, the external measurement and control instrument of closed reduction in this utility model human femur under loading fracture operation is further described.
Accompanying drawing explanation
Fig. 1 is the structural representation of the external measurement and control instrument of closed reduction in this utility model human femur under loading fracture operation;
Fig. 2 is the sectional view at the place of B-B shown in Fig. 1;
Fig. 3 is the sectional view of the pipe of length scale shown in Fig. 1 and angle indicator;
Fig. 4 be the pipe of length scale shown in Fig. 3 A to side view;
Fig. 5 is the sectional view of angle indicator shown in Fig. 3;
Drawing reference numeral illustrates: 1-sleeve pipe I, 11-pin hole I, 2-branch sleeve I, 21-trip bolt I, 3-length scale pipe, 31-pointer gathering sill, 311-locating slot, 312-narrow slit, 4-angle indicator, 41-slide block, 42-pointer, 5-angular readings assembly, 51-angular readings dish, 52-lock-screw, 53-host cavity, 54-angular readings dial scale pipe, 6-branch sleeve II, 61-trip bolt II, 7-sleeve pipe II, 71-pin hole II, 8-Kirschner wire II, 9-Kirschner wire I.
Detailed description of the invention
As shown in Figure 1, the external measurement and control instrument of closed reduction in this utility model human femur under loading fracture operation, comprises sleeve pipe I 1, sleeve pipe II 7, branch sleeve I 2, branch sleeve II 6, angle indicator 4, angular readings assembly 5 and length scale pipe 3.
Described sleeve pipe I 1 and sleeve pipe II 7 be respectively arranged with run through its separately upper and lower surface for the pin hole I 11 of guide-localization Kirschner wire and pin hole II 71; During operation, Kirschner wire I 9 and Kirschner wire II 8 are each passed through pin hole I 11 and pin hole II 71 and are positioned in pin hole I and pin hole II.Described branch sleeve I 2 is provided with the trip bolt I 21 for locking sleeve I 1, branch sleeve II 6 is provided with the trip bolt II 61 for locking sleeve II 7, sleeve pipe I 1 is with branch sleeve I 2 axially vertical through branch sleeve I 2, sleeve pipe II 7 is with branch sleeve II 6 axially vertical through branch sleeve II 6, and sleeve pipe I 1 and sleeve pipe II 7 are located fastening respectively by trip bolt I and trip bolt II.
The angular readings dial scale pipe 54 that described angular readings assembly 5 comprises rounded angular readings dish 51 and vertically extended to form by the rear end face of angular readings dish 51, angular readings dial scale pipe 54 is coaxially connected with branch sleeve II 6 away from angular readings dish 51 one end, and angular readings assembly 5 also comprises and to be extended back the host cavity 53 formed by angular readings dish 51 front end face.Length scale pipe 3 one end is coaxially connected with branch sleeve I 2, and the other end extends in the host cavity 53 of angular readings assembly 5, and length scale pipe 3 and host cavity 53 adopt matched in clearance, and it can move vertically and radial rotating in host cavity 53.
In the present embodiment, angular readings assembly 5 is also provided with the lock-screw 52 for locking the length scale pipe 3 being positioned at host cavity 53, after the Distance geometry angle adjustment of Kirschner wire I 9 and Kirschner wire II 8 completes, lock-screw 52 can be tightened makes length scale pipe 3 be fixed in host cavity 53, the Kirschner wire I 9 and the Kirschner wire II 8 Distance geometry angle that realize two ends remain unchanged, and can facilitate follow-up operation.
As shown in Figure 3, described length scale pipe 3 is also provided with the pointer gathering sill 31 for orientation angle pointer 4, and pointer gathering sill 31 is extended back by the front end face of length scale pipe 3 and formed.Angle indicator 4 comprises slide block 41 and is vertically connected on pointer 42(on slide block 41 as shown in Figure 5), described pointer gathering sill 31 comprises the locating slot 311 and for the narrow slit 312(that passes for pointer 42 as shown in Figure 4 for positioning sliding block 41), narrow slit 312 runs through locating slot 311 total length.Described slide block 41 adopts the mode of matched in clearance to be positioned in the locating slot 311 of pointer gathering sill 31, and pointer 42 also protrudes in the outside of length scale pipe 3 through narrow slit 312.The slide block 41 be positioned in locating slot 311 can move forward and backward along locating slot 311 and drive pointer 42 to move in narrow slit 312.Angle indicator 4 is positioned in pointer gathering sill 31, angle indicator 4 can be moved near angular readings dish 51 along pointer gathering sill 31, make reading more accurate, effectively raise positioning precision of the present utility model.
Described angular readings dish 51 is provided with angle index, angular readings dial scale pipe 54 and length scale pipe 3 are respectively arranged with length scale.
Be positioned at the Kirschner wire I 9 in sleeve pipe I 1 and sleeve pipe II 7 and the distance between Kirschner wire II 8 can combine reading, i.e. L=L1+L2 by angular readings dial scale pipe 54 and length scale pipe 3, wherein L is the distance between Kirschner wire I 9 and Kirschner wire II 8; L1 is the distance of Kirschner wire I 9 to angular readings dish 51 front end face, i.e. the reading of length scale pipe 3; L2 is the distance of angular readings dish 51 front end face to Kirschner wire II 8, and L2 is fixed value in the present embodiment.
When the Kirschner wire I 9 be positioned in sleeve pipe I 1 and sleeve pipe II 7 and Kirschner wire II 8 are in keeping parallelism in same plane, be positioned at 0 degree of the angle indicator 4 orientation angle reading dial 51 in pointer gathering sill 31; When Kirschner wire I 9 and Kirschner wire II 8 produce relative rotation, length scale pipe 3 meeting relative angle reading dial 51 synchronous axial system, the angle indicator 4 be positioned in pointer gathering sill 31 also together rotates; The relative rotation angle that Kirschner wire I 9 and Kirschner wire II 8 produce can be read by the angle value that the position of angle indicator 4 on angular readings dish 51 is corresponding.
In this utility model human femur under loading fracture operation, the concrete using method of the external measurement and control instrument of closed reduction in bone fracture bonesetting operation is:
First, before surgery the thigh skin metal marker thing of injured fracture is adhered to as external anchor point (two points, locate near-end and the far-end of fractured femur respectively), then CT scan is carried out, by CT scan data by Computerized three-dimensional software processes, carry out sham operated fracture end is resetted completely, obtain the pivoting angle data after accurate reset and length data, the relative length of the required adjustment of reset completely of determining to fracture and relative angle.
Second, Kirschner wire I 9 and Kirschner wire II 8 is pierced perpendicular to the near-end of fractured femur and distal femoral center respectively at two individual outside fix point places in operation, thus pass through near-end and the distal femoral position of these two pieces of Kirschner wire determination thigh deeps fracture, now these two pieces of Kirschner wires I 9 are parallel in same plane with Kirschner wire II 8.
3rd, regulate length scale pipe 3 to suitable position when lock-screw 52 unclamps, then two sleeve pipes I 1 of external for this utility model measurement and control instrument and sleeve pipe II 7 are overlapped respectively and penetrate two pieces of Kirschner wires I 9 and Kirschner wire II 8, tighten trip bolt I 21 and trip bolt II 61, Kirschner wire and sleeve pipe are fixed; By drawing the far-end of fractured femur, length scale pipe 3 can read the relative movement distance between two pieces of Kirschner wires I 9 and Kirschner wire II 8, if this relative movement length is consistent with the relative length determined in preoperative sham operated, the cut to lengthen that fractured femur resets also just can be realized.
4th, the angle indicator 4 be positioned in pointer gathering sill 31 is pressed close to angular readings dish 51 along pointer gathering sill 31 slip, by rotating the far-end of fractured femur in art, now length scale pipe 3 can drive angle indicator 4 to rotate simultaneously and on angular readings dish 51, read the angle relatively rotated, if this angle relatively rotated is consistent with the relative angle determined in preoperative sham operated, the anglec of rotation that also just can realize fractured femur controls.
In the present embodiment, length scale pipe 3 is respectively one machine-shaping with branch sleeve I 2, angular readings dial scale pipe 54 with branch sleeve II 66, as the conversion of the present embodiment, also can adopt interference fit between them, bonding, pin connects, be threaded or the combination connecting mode of above-mentioned connection; Angular readings dish 51 and angular readings dial scale pipe 54 can make all-in-one-piece, also can be made into separate type, by interference fit, bonding, be threaded, sell the modes such as connection and be combined into one.
Above embodiment is only preferred embodiment of the present utility model; structure of the present utility model is not limited to the form that above-described embodiment is enumerated; all any amendments, equivalent replacement etc. done within spirit of the present utility model and principle, all should be included within protection domain of the present utility model.
Claims (4)
1. the external measurement and control instrument of closed reduction in a human femur under loading fracture operation, it is characterized in that, comprise sleeve pipe I (1), sleeve pipe II (7), branch sleeve I (2), branch sleeve II (6), angle indicator (4), angular readings assembly (5) and length scale pipe (3), described sleeve pipe I (1) and sleeve pipe II (7) be respectively arranged with run through its separately upper and lower surface for locating pin hole I (11) and the pin hole II (71) of Kirschner wire, sleeve pipe I (1) is with branch sleeve I (2) axially vertical through branch sleeve I (2), sleeve pipe II (7) is with branch sleeve II (6) axially vertical through branch sleeve II (6), the angular readings dial scale pipe (54) that described angular readings assembly (5) comprises rounded angular readings dish (51) and vertically extended to form by the rear end face of angular readings dish (51), angular readings dial scale pipe (54) is coaxially connected with branch sleeve II (6) away from angular readings dish (51) one end, and angular readings assembly (5) also comprises and to be extended back the host cavity (53) formed by angular readings dish (51) front end face, length scale pipe (3) one end is coaxially connected with branch sleeve I (2), length scale pipe (3) other end extends in the host cavity (53) of angular readings assembly (5), and length scale pipe (3) can move vertically and radial rotating in host cavity (53), described length scale pipe (3) is also provided with the pointer gathering sill (31) for orientation angle pointer (4), and angle indicator (4) is positioned in pointer gathering sill (31) and also can moves forward and backward along pointer gathering sill (31).
2. the external measurement and control instrument of closed reduction in human femur under loading fracture operation as claimed in claim 1, it is characterized in that, described angle indicator (4) comprises slide block (41) and is vertically connected on the pointer (42) on slide block (41), described pointer gathering sill (31) is extended back by the front end face of length scale pipe (3) and is formed, pointer gathering sill (31) comprises for the locating slot (311) of positioning sliding block (41) and the narrow slit (312) for passing for pointer (42), described slide block (41) is positioned in the locating slot (311) of pointer gathering sill (31), and pointer (42) to protrude in the outside of length scale pipe (3) through narrow slit (312).
3. the external measurement and control instrument of closed reduction in human femur under loading fracture operation as claimed in claim 1, it is characterized in that, described branch sleeve I (2) is provided with the trip bolt I (21) for locking sleeve I (1), and branch sleeve II (6) is provided with the trip bolt II (61) for locking sleeve II (7).
4. the external measurement and control instrument of closed reduction in human femur under loading fracture operation as claimed in claim 1, is characterized in that, described angular readings assembly (5) is also provided with the lock-screw (52) being positioned at the length scale pipe (3) of host cavity (53) for locking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520538800.9U CN204890140U (en) | 2015-07-23 | 2015-07-23 | External observing and controlling appearance of closed reduction in human femoral fracture art |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520538800.9U CN204890140U (en) | 2015-07-23 | 2015-07-23 | External observing and controlling appearance of closed reduction in human femoral fracture art |
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| Publication Number | Publication Date |
|---|---|
| CN204890140U true CN204890140U (en) | 2015-12-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520538800.9U Withdrawn - After Issue CN204890140U (en) | 2015-07-23 | 2015-07-23 | External observing and controlling appearance of closed reduction in human femoral fracture art |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204890140U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104983454A (en) * | 2015-07-23 | 2015-10-21 | 柳州铁道职业技术学院 | Extracorporeal measuring and controlling device for closed reduction in human femur fracture operation |
| CN109464184A (en) * | 2019-01-15 | 2019-03-15 | 河南省中医院（河南中医药大学第二附属医院） | Limb long bone diaphysis fracture reduction device |
| CN109692021A (en) * | 2019-01-28 | 2019-04-30 | 青岛大学附属医院 | A kind of hip joint retractor |
-
2015
- 2015-07-23 CN CN201520538800.9U patent/CN204890140U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104983454A (en) * | 2015-07-23 | 2015-10-21 | 柳州铁道职业技术学院 | Extracorporeal measuring and controlling device for closed reduction in human femur fracture operation |
| CN104983454B (en) * | 2015-07-23 | 2017-05-24 | 柳州铁道职业技术学院 | Extracorporeal measuring and controlling device for closed reduction in human femur fracture operation |
| CN109464184A (en) * | 2019-01-15 | 2019-03-15 | 河南省中医院（河南中医药大学第二附属医院） | Limb long bone diaphysis fracture reduction device |
| CN109692021A (en) * | 2019-01-28 | 2019-04-30 | 青岛大学附属医院 | A kind of hip joint retractor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151223 Effective date of abandoning: 20170524 |
|
| AV01 | Patent right actively abandoned |