CN220025177U

CN220025177U - Deviation correcting blind typing pure mechanical intramedullary nail distal sighting device, deviation correcting nail and assembly

Info

Publication number: CN220025177U
Application number: CN202321538135.4U
Authority: CN
Inventors: 陈聚伍
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-06-16
Filing date: 2023-06-16
Publication date: 2023-11-17
Anticipated expiration: 2033-06-16

Abstract

The utility model provides a far-end sighting device, a deviation correcting nail and a component of a deviation correcting blind-typing pure mechanical intramedullary nail, wherein one end face of a nail body of the deviation correcting nail is provided with a full-cut inclined plane, the deviation correcting nail component comprises a deviation correcting nail and a guide sleeve, the far-end sighting device of the intramedullary nail comprises a fixing frame and a group of deviation correcting nail components, the fixing frame comprises a U-shaped fixed connecting seat and a support arm, one of the U-shaped fixed connecting seat is fixedly connected with the intramedullary nail, the other is fixedly connected with the support arm, and at least two parallel guide holes are arranged at the tail end of the support arm; the deviation rectifying tool has the advantages of simple structure and convenient operation, reduces the cost and increases the possibility of popularization and application. Can solve the technical problem that the distal end of the intramedullary nail is easy to deviate in the deviation rectifying process. The accuracy and stability of the intramedullary nail distal end deviation correction are realized, and the operation effect and the treatment experience of patients are improved.

Description

Deviation correcting blind typing pure mechanical intramedullary nail distal sighting device, deviation correcting nail and assembly

Technical Field

The utility model belongs to the technical field of intramedullary nail distal end deviation rectifying and positioning instruments, and particularly relates to a deviation rectifying blind typing pure mechanical intramedullary nail distal end sight, a deviation rectifying nail and a component.

Background

At present, aiming at the problem that the distal hole of the intramedullary nail is easy to deflect during locking hole when the femur is fractured, some instruments and techniques have been developed to correct the deviation. These instruments and techniques aim to improve the accuracy and success rate of surgery and reduce the occurrence of complications. Currently, related instruments include space positioning systems, electromagnetic navigation systems, robotic assistance systems, and purely mechanically adjusted positioning instruments that require manual adjustment under X-rays.

In the current instrument situation of intramedullary nail distal hole correction, the equipment generally has the problems of complex structure, high technical content and high cost, or the popularization and application of the equipment are limited due to the high operation difficulty. For example, some newer instruments and techniques may still be in the development and improvement stage, their structure and function may be relatively complex, and require specialized technicians for operation and maintenance. This results in higher cost of the device and also limits its widespread use; some advanced instruments may require a physician to receive specific training to be proficient in operation to ensure accuracy and safety. The complexity and technical requirements of the operation may increase training costs and time and place demands on the operation experience and skills of the doctor; due to the intense competition in the instrument and equipment markets, manufacturers may need to devote significant resources to developing and promoting new technologies. These development costs may be reflected in the price of the product, making it expensive.

To address these issues, the scientific and medical industries are striving to improve and innovate to provide a more simplified, cost-effective solution. The desired direction of improvement includes simplified design and operational interfaces: by simplifying the structure and function of the apparatus, the complexity of the operation is reduced, so that the doctor can get his hands more easily and grasp the operation skill quickly.

Disclosure of Invention

Aiming at the defects and problems in the prior art, the utility model provides a deviation rectifying blind typing pure mechanical intramedullary nail distal sighting device, a deviation rectifying nail and a component, which are used for solving the problem that a deviation appears in a distal lock hole of the intramedullary nail and providing an accurate deviation rectifying positioning and convenient operation method.

The utility model solves the technical problems as follows: an inclined plane deviation rectifying nail for rectifying the far end of an intramedullary nail is adopted, and comprises a nail body, wherein a full-cut inclined plane is arranged on one end face of the nail body. The diameter of the deviation correcting nail is matched with the aperture of the distal hole of the matched intramedullary nail.

The handle portion is preferably provided at the rear end of the shank. Preferably, a mark is arranged at the rear end of the nail body, and the mark is consistent with the inclined plane of the front end, so that the angle position of the inclined plane of the front end of the nail body can be known through the mark.

The inclined plane deviation correcting nail assembly for fracture distal end deviation correction comprises an inclined plane deviation correcting nail and a guide sleeve, wherein the outer diameter of the inclined plane deviation correcting nail is matched with the inner diameter of the guide sleeve, the inclined plane deviation correcting nail comprises a nail body, a full-cutting inclined plane is arranged on one end face of the nail body, the guide sleeve is fixed when in use, and the inclined plane deviation correcting nail is inserted into the guide sleeve, so that the guide sleeve can slide along the axis of the guide sleeve in a telescopic manner. The diameter of the deviation correcting nail is matched with the aperture of the distal hole of the matched intramedullary nail.

The remote sighting device for the deviation correcting blind-typing pure mechanical intramedullary nail comprises a fixing frame and a group of inclined plane deviation correcting nail components, wherein the fixing frame comprises a U-shaped fixed connecting seat and a supporting arm, one of the U-shaped fixed connecting seat is fixedly connected with the intramedullary nail, the other is fixedly connected with the supporting arm, and at least two parallel guide holes are arranged at the tail end of the supporting arm; the inclined plane deviation correcting nail component comprises an inclined plane deviation correcting nail and a guide sleeve, the guide sleeve can be inserted into a guide hole at the tail end of a supporting arm, the inclined plane of the inclined plane deviation correcting nail is a full-cut inclined plane, the diameter of the deviation correcting nail is matched with the aperture of a far-end hole of an intramedullary nail, and the deviation correcting range is the diameter d of the whole nail body.

Preferably, the rear end of the inclined deviation correcting nail is provided with a handle and/or a mark, so that the operation and the positioning are facilitated.

Preferably, the back end of the supporting arm is provided with an adjustable connecting seat, and an angle adjustable mechanism is arranged between the adjustable connecting seat and the fixed connecting seat.

Preferably, an auxiliary frame is fixed on the upper side of the tail end of the supporting arm, a vertical screw hole is arranged on the tail end of the auxiliary frame, a screw thread section is arranged on the upper portion of the compression bar, the screw thread section and the screw hole are assembled together, and the lower end of the compression bar is supported on the upper side of the support surface of the distal end of the intramedullary nail and used for jacking and adjusting the distal end of the intramedullary nail.

The utility model provides a deviation rectifying tool with simple structure and convenient operation, which reduces the cost and increases the possibility of popularization and application. Can solve the technical problem that the distal end of the intramedullary nail is easy to deviate in the deviation rectifying process. The accuracy and stability of the intramedullary nail distal end deviation correction are realized, and the operation effect and the treatment experience of patients are improved. The specific effects are as follows:

1. accurate deviation rectifying and positioning: through the combination of the inclined plane deviation correcting nail and the guide sleeve, accurate deviation correcting and positioning can be realized. The diameter of the deviation correcting nail is matched with the aperture of the distal hole of the intramedullary nail, the deviation correcting nail can slide and adjust in the distal hole, and the guide sleeve provides supporting and guiding functions, so that the distal hole of the intramedullary nail is accurately positioned and locked.

2. Convenient operation: the schemes are simple in design, the using method is relatively simple and convenient, and the operation difficulty is low. The touch typing operation is performed without relying on X-ray perspective, so that the complexity of the operation and the technical requirements of doctors are reduced.

3. Reducing X-ray exposure: these approaches reduce the need for doctors and patients to receive X-ray radiation, as they do not need to operate under X-rays. This has a positive impact on both the radiation exposure of the patient and the professional health of the doctor.

4. Improving the operation efficiency and success rate: accurate deviation correcting and positioning and convenient operation can improve the operation efficiency and reduce the risks of errors and complications in the operation. This helps to improve the success rate of fracture treatment and the effectiveness of patient recovery.

Drawings

FIG. 1 is a schematic perspective view of an incline deviation correcting nail assembly of the present utility model;

FIG. 2 is a schematic perspective view of a slope deviation correcting nail;

FIG. 3 is a top view of FIG. 2;

FIG. 4 is a side view of FIG. 3;

FIG. 5 is an enlarged schematic view of the portion A in FIG. 3;

FIG. 6 is a schematic illustration of one of the configurations of the distal end sight of the intramedullary nail of the present utility model;

fig. 7 is a second schematic view of the distal end sight of the intramedullary nail of the present utility model.

Reference numerals in the drawings: 1. a nail body; 2. an inclined plane; 3. a handle portion; 4. a guide sleeve; 5. a guide bracket; 6. fixing the connecting seat; 7. a support arm; 8. an adjustable connection base; 9. a mounting hole; 10. angle locking wire; 11. a guide hole; 12. an intramedullary nail; 13. a drill rod axial lead; 14. marking; 15. an auxiliary frame; 16. a screw hole; 17. a compression bar; 18. a support surface.

Description of the embodiments

The utility model will be further described with reference to the drawings and examples.

Example 1: an inclined plane deviation rectifying nail for rectifying the far end of an intramedullary nail as shown in fig. 2-4 comprises a nail body 1, wherein a full cutting inclined plane 2 is arranged on one end face of the nail body 1. Or a handle part 3 is arranged at the rear end of the nail body 1. Or simultaneously, marks, such as a representation or a milling plane or a grooving, are arranged at the rear end of the nail body 1, and the marks are consistent with the inclined plane 2 at the front end, so that the angular position of the inclined plane at the front end of the nail body can be known through the marks. The design purpose of the inclined plane deviation rectifying nail is to provide convenience and accuracy when the intramedullary nail distal end deviation rectifying is carried out.

The using method comprises the following steps: based on the existing intramedullary nail distal end aiming instrument, the proximal end of the inclined plane deviation correcting nail is inserted into the positioning hole of the instrument, the distal end of the inclined plane deviation correcting nail is inserted into the distal end hole of the intramedullary nail, the diameter of the deviation correcting nail is matched with the aperture of the distal end hole of the intramedullary nail, the inclined plane of the inclined plane deviation correcting nail is enabled to be aligned correctly by rotating the inclined plane deviation correcting nail, and then the inclined plane deviation correcting nail is inserted into the distal end hole of the intramedullary nail, so that deviation correcting and positioning are realized.

Example 2: a nail subassembly is rectified to inclined plane that is used for fracture distal end to rectify, as shown in fig. 1, it includes nail and guide sleeve 4 are rectified to the inclined plane, and both can match the suit, and the external diameter that the nail was rectified to the inclined plane matches in the internal diameter of guide sleeve promptly, and the nail is rectified to the inclined plane includes nail body 1, sets up full cutting inclined plane 2 at an terminal surface of nail body 1. Or a handle part 3 is arranged at the rear end of the nail body 1. When the guide sleeve is used, the guide sleeve 4 is fixed, and then the inclined plane deviation correcting nail is inserted into the guide sleeve 4, so that the inclined plane deviation correcting nail can slide along the axis of the guide sleeve in a telescopic manner.

The design aims at enabling the inclined plane deviation correcting nail to stretch and slide along the axis of the guide sleeve through the supporting function of the guide sleeve, so that the deviation correction of the fracture distal end is realized. The using method comprises the following steps: and fixing the guide sleeve, and then inserting the inclined plane deviation correcting nail into the guide sleeve. And pushing the inclined plane of the inclined plane deviation correcting nail to the far end hole of the intramedullary nail through the guiding supporting function of the guiding sleeve. And then rotating the inclined plane deviation correcting nail to enable the deviation correcting nail to be inserted into the distal hole of the intramedullary nail and keep positioning, wherein the diameter of the deviation correcting nail is matched with the aperture of the distal hole of the intramedullary nail.

Example 3: a deviation correcting blind typing pure mechanical intramedullary nail far-end sighting device comprises a fixing frame, an inclined plane deviation correcting nail and a guide sleeve 4. The fixing frame may be any intramedullary nail fixing frame in the prior art, and in this example, a fixing seat shown in fig. 6 is adopted, and the fixing seat includes a U-shaped fixing and connecting seat 6 and a supporting arm 7, where the U-shaped fixing and connecting seat 6 is fixed on a bed body or an instrument support, one of the U-shaped fixing and connecting seat 6 is fixedly connected with an intramedullary nail 12, the other is fixedly connected with the supporting arm 7, and at least two parallel guide holes 11 are provided at the tail end of the supporting arm 7. The deviation correcting pin assembly is as described in embodiment 2 and comprises a slope correcting pin and a guide sleeve 4.

When the intramedullary nail is used, the guide sleeve 4 is inserted into one of the guide holes 11 in a matching manner, then the inclined plane deviation correcting nail is inserted into the guide sleeve 4, the front port of the guide sleeve is made to be close to the first distal hole of the intramedullary nail as much as possible to provide a guide function, under the guide supporting effect of the guide sleeve 4, the inclined plane 2 at the distal end of the inclined plane intramedullary nail is pushed to the first distal hole of the intramedullary nail, the inclined plane deviation correcting nail is rotated from the outer end to enable the inclined plane deviation correcting nail to be inserted into the distal hole of the intramedullary nail, the diameter of the deviation correcting nail is matched with the aperture of the distal hole of the intramedullary nail, the diameter of the deviation correcting nail is continuously inserted into the first distal hole of the intramedullary nail to be positioned, and after the positioning, the second distal hole of the intramedullary nail is positioned to be corresponding to the position of the corresponding support arm guide hole, as shown in fig. 6, and the axes of the support arm guide hole and the second distal hole of the intramedullary nail are positioned at the same axis, namely the drill rod axis 13.

It should be noted that, the deviation rectifying range of the inclined plane 2-position full-cut inclined plane of the inclined plane deviation rectifying nail is the diameter d of the whole nail body, as shown in fig. 5, before the inclined plane deviation rectifying nail is inserted into the distal end hole of the intramedullary nail, no matter whether the distal end hole of the intramedullary nail is upwards or downwards deviated, as long as the deviation is smaller than the diameter d of the inclined plane deviation rectifying nail, the inclined plane deviation rectifying nail can be inserted into the distal end first hole of the intramedullary nail when being rotated to make the inclined plane of the inclined plane deviation rectifying nail be a correct angle, and the distal end deviation rectifying and positioning of the intramedullary nail are realized, and the diameter of the deviation rectifying nail is matched with the aperture of the distal end hole of the intramedullary nail, so as to achieve the locking function of the distal end hole of the intramedullary nail. The rear end of the inclined plane deviation correcting nail is preferably provided with a handle so as to be beneficial to rotation operation. In addition, a scale mark or a milling plane can be arranged at the rear end of the inclined plane deviation correcting nail as a mark, and the mark is consistent with the direction of the inclined plane at the front end, and the direction of the inclined plane at the front end of the nail body can be obtained by judging the mark at the rear end of the inclined plane intramedullary nail. In operation, the embodiment can realize touch typing operation without operating under X-rays, reduces X-ray irradiation of doctors and patients, but does not exclude that the operation can be performed under X-rays in a perspective mode.

When in use, a proper fixing frame is firstly selected and is arranged on a bed body or an instrument bracket. The fixing frame adopts a combination of a U-shaped fixed connecting seat and a supporting arm, wherein one branch of the U-shaped fixed connecting seat is fixedly connected to the intramedullary nail, and the other branch is fixedly connected to the supporting arm. At least two parallel guide holes are arranged at the tail end of the supporting arm. Next, a guide sleeve is inserted into the holder in mating relation with one of the guide holes, ensuring that the front port of the guide sleeve is adjacent to the first distal hole of the intramedullary nail to provide a guiding function. Then, the inclined plane deviation correcting nail is inserted into the guide sleeve. And pushing the inclined plane of the inclined plane deviation correcting nail to the first distal hole of the intramedullary nail through the guiding supporting function of the guiding sleeve. During the insertion process, the inclined plane deviation correcting nail can be rotated to adjust the angle of the inclined plane, so that the alignment of the inclined plane deviation correcting nail and the distal hole of the intramedullary nail is ensured. Once the beveled deviation correcting nail is inserted into the first distal hole of the intramedullary nail and positioned, the second distal hole of the intramedullary nail corresponds to the corresponding support arm guide hole position. This means that the axes of the support arm pilot hole and the distal hole of the second intramedullary nail are located at the same axis, i.e. the drill rod axis. In addition, the rear end of the inclined plane deviation correcting nail can be provided with a handle so as to facilitate the rotation operation. The scale mark or milling plane can be set at the rear end of the inclined plane deviation correcting nail as a mark, the mark is consistent with the direction of the inclined plane at the front end, and the direction of the inclined plane at the front end of the nail body can be judged by observing the mark at the rear end of the inclined plane deviation correcting nail. These protocols should also be selected to be appropriate for the particular patient condition and surgical needs, as well as according to the physician's expertise.

In summary, these technical schemes provide an effective, convenient and accurate intramedullary nail distal end deviation rectifying method by combining components such as inclined plane deviation rectifying nails, guide sleeves, fixing frames and the like. The use method is relatively simple, can provide powerful auxiliary tools for doctors in fracture treatment, and improves the operation efficiency and success rate.

Example 4: in the case of embodiment 3, when the guide sleeve 4 is not used, the inclined deviation correcting nail may be directly inserted into the guide hole of the support arm, and the above-mentioned operation for positioning the distal end Kong Jiupian of the intramedullary nail may be performed.

Example 5: on the basis of embodiment 3 or 4, the back end of the supporting arm 7 is provided with an adjustable connecting seat 8, and an angle adjustable mechanism is arranged between the adjustable connecting seat 8 and the fixed connecting seat 6. For example, one implementation manner is to provide one or more mounting holes 9 on the U-shaped fixed connection seat 6, and one or more mounting holes 9 on the adjustable connection seat 8 at the rear end of the supporting arm 7, where the corresponding mounting holes are fixed by angle locking wires 10, so as to form an original fixed relationship. Or by adjusting the angle locking wire 10, the angle between the adjustable connecting seat 8 and the fixed connecting seat 6 is changed.

Example 6: on the basis of embodiment 3, an auxiliary frame 15 is further fixed on the upper side of the tail end of the supporting arm 7, a vertical screw hole 16 is arranged at the tail end of the auxiliary frame 15, a threaded section is arranged on the upper part of a compression bar 17, the threaded section and the screw hole 16 are assembled together, and the lower end of the compression bar is supported on the upper side of a supporting surface 18 on the upper side of the far end of the intramedullary nail 12 and is used for jacking and adjusting the far end of the intramedullary nail.

The above detailed description of the present utility model is merely illustrative or explanatory of the principles of the utility model and is not necessarily intended to limit the utility model. Accordingly, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present utility model should be included in the scope of the present utility model.

Claims

1. The inclined plane deviation correcting nail for correcting the distal end of the intramedullary nail is characterized by comprising a nail body (1), wherein a full cutting inclined plane (2) is arranged on one end face of the nail body.

2. A slope deviation correcting nail for correcting the distal end of an intramedullary nail according to claim 1, characterized in that a handle portion (3) is provided at the rear end of the nail body (1).

3. The slope deviation correcting nail for correcting the distal end of an intramedullary nail according to claim 1 or 2, characterized in that a marker (14) is arranged at the rear end of the nail body (1), and the marker (14) is consistent with the slope (2) of the front end, so that the angular position of the slope of the front end of the nail body can be known through the marker.

4. The utility model provides a nail subassembly is rectified to inclined plane that is used for fracture distal end to rectify, a serial communication port, including inclined plane rectify nail and guide sleeve (4), the external diameter that rectifies the nail is matchd in the inside diameter of guide sleeve pipe to the inclined plane, and the nail is rectified to the inclined plane includes a nail body (1), is provided with at an terminal surface of nail body (1) and cuts inclined plane (2) entirely, fixes guide sleeve (4) during the use to in inserting guide sleeve (4) with the inclined plane rectify the nail, ensure that it can slide along guide sleeve axle center is flexible.

5. The far-end sighting device of the deviation-correcting blind-typing pure mechanical intramedullary nail is characterized by comprising a fixing frame and a group of inclined plane deviation-correcting nail components, wherein the fixing frame comprises a U-shaped fixed connecting seat (6) and a supporting arm (7), one branch of the U-shaped fixed connecting seat is fixedly connected with the intramedullary nail (12), the other branch is fixedly connected with the supporting arm (7), and at least two parallel guide holes (11) are formed in the tail end of the supporting arm; the inclined plane rectifying nail assembly comprises an inclined plane rectifying nail and a guide sleeve (4), the guide sleeve (4) can be inserted into a guide hole at the tail end of a supporting arm, the inclined plane of the inclined plane rectifying nail is a full-cut inclined plane (2), the diameter of the rectifying nail is matched with the diameter of a far-end hole of an intramedullary nail, and the rectifying range of the inclined plane rectifying nail is the diameter d of the whole nail body (1).

6. The remote sighting device of the offset-touch-corrected purely mechanical intramedullary nail according to claim 5, characterized in that the rear end of the inclined deviation correcting nail is provided with a handle part (3) and/or a mark (14) to facilitate the operation and positioning.

7. The remote sighting device of the offset-touch typing pure mechanical intramedullary nail according to claim 5, wherein the rear end of the supporting arm (7) is provided with an adjustable connecting seat (8), and an angle-adjustable mechanism is arranged between the adjustable connecting seat (8) and the fixed connecting seat (6).

8. The remote sighting device of the offset touch typing pure mechanical intramedullary nail according to claim 5, wherein an auxiliary frame (15) is fixed on the upper side of the tail end of the supporting arm (7), a vertical screw hole (16) is arranged at the tail end of the auxiliary frame (15), a threaded section is arranged on the upper part of the pressing rod (17), the threaded section and the screw hole (16) are assembled together, and the lower end of the pressing rod is supported on the upper side of a supporting surface (18) on the upper side of the far end of the intramedullary nail (12) for pressing and adjusting the far end of the intramedullary nail.