CN220109830U

CN220109830U - Carrier distance protrusion guide

Info

Publication number: CN220109830U
Application number: CN202320857604.2U
Authority: CN
Inventors: 赖建鸿; 李艳秋
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-04-17
Filing date: 2023-04-17
Publication date: 2023-12-01
Anticipated expiration: 2033-04-17

Abstract

The utility model discloses a loading process guider, which is provided with an operation side, and comprises the following components: a fixed base; the guide plate is arranged on the fixed base; the connecting member is slidingly connected with the guide plate and is provided with a first guide hole; the connecting member slides along an arcuate first adjustment path with an arcuate opening toward the surgical side; the guide arm is fixed with the connecting component, a guide structure is slidably arranged on the guide arm, the guide structure slides along an arc-shaped second adjusting path, an arc-shaped opening of the second adjusting path faces the operation side, and a screw guide hole is formed in the guide structure; and the end part of the positioning arm is a positioning end, and the positioning end faces the operation side. The scheme is accurate in guiding the screw, avoids the operation mode of touch typing through the experience of a doctor in the past, and improves the operation quality.

Description

Carrier distance protrusion guide

Technical Field

The utility model relates to the technical field of medical appliances, in particular to a calcaneus load-distance process guider in a calcaneus minimally invasive operation.

Background

Calcaneus fracture is the most common tarsal fracture, accounting for 60% of all tarsal fractures, 75% of which are intra-articular fractures, and surgical treatment of calcaneus fracture can better recover subtalar joint and hindfoot morphology of calcaneus, thereby obtaining better treatment effect and promoting recovery of ankle function of patients. In recent years, with the rapid development of minimally invasive surgery techniques, minimally invasive surgery via the tarsal sinus approach is increasingly applied to the clinic. The hollow countersunk nails are used for fixing the calcaneus fracture, and the hollow countersunk nails are widely applied to minimally invasive surgery, particularly closed reduction internal fixation surgery. The posterior articular surface of the calcaneus is the largest and bears most of the body weight. The medial side of the calcaneus middle part is provided with a load distance process, and the surrounding of the load distance process is provided with a strong ligament and a joint capsule for adhesion, so that the calcaneus is not displaced when being fractured, and becomes a fixed point. In surgery, it is particularly important to strike the lateral calcaneus to the medial load lobe screw, which determines the stability of the fixation of the countersunk head to the inferior articular surface and the quality of the internal fixation.

For loading process screws, a doctor usually performs touch typing according to own experience. The accuracy of the operation is difficult to ensure, and repeated operation often prolongs the operation time and influences the operation progress. Even the calcaneus lateral wall is damaged in a hospital, which affects the stability of calcaneus fracture.

On the other hand, the calcaneus is mainly composed of cancellous bone, and its bone structure is mainly thick on the medial side and weak on the lateral side, so that vertical violence from the talus tends to cause collapse and expansion of the calcaneus. Different vertical violence determines different lateral wall fracture lines for each patient. In addition, the bone condition of different patients also determines the stability of screw fixation. In clinical work, the distance-bearing protrusion screw which is arranged from outside to inside often needs to adjust the direction of the insertion nail according to the type of fracture line and the bone quantity of the insertion nail point. The direction is not well grasped, and the load distance protrusion screw cannot play a role in fixation and can influence the operation effect. Even iatrogenic injuries to the blood vessels, nerves, tendons surrounding the carrying process can occur.

Disclosure of Invention

The utility model aims to solve the technical problems that: in the operation of fixing the hollow countersunk nails of the calcaneus fracture, on the premise of being placed with the hollow nails of the calcaneus body, the special carrying distance protrusion guide device is provided, so that the carrying distance protrusion can be aimed at the carrying distance protrusion on the inner side from a plurality of directions on the outer side of the calcaneus more conveniently and rapidly, and the carrying distance protrusion screw can be placed smoothly.

The utility model solves the technical problems as follows:

a load-distance process guide provided with a surgical side, the load-distance process guide comprising:

a fixed base;

the guide plate is arranged on the fixed base;

the connecting member is slidingly connected with the guide plate and is provided with a first guide hole; the connecting member slides along an arcuate first adjustment path with an arcuate opening toward the surgical side;

the guide arm is fixed with the connecting component, a guide structure is slidably arranged on the guide arm, the guide structure slides along an arc-shaped second adjusting path, an arc-shaped opening of the second adjusting path faces the operation side, and a screw guide hole is formed in the guide structure;

and the end part of the positioning arm is a positioning end, and the positioning end faces the operation side.

Through above-mentioned technical scheme, medical personnel put into the first piece of hollow nail of calcaneus body portion earlier, then connect connecting element and above-mentioned hollow nail through the nut for connecting element passes through the screw and puts into the hollow nail tail end of fixed calcaneus body portion, and medical personnel adjust guide arm, the height of locating arm and the inclination of guide arm, locating arm according to the size of incision and height, the angle of inclination of patient's foot etc. of face down, to the height of guide arm, locating arm. The medical staff then contacts the positioning end with the surface features of the load distance protrusion of the patient, and the positioning end is fixed on the load distance protrusion through the body surface marks on the inner side of the foot. And then fine tuning the heights of the guide arm and the positioning arm again, so that the carrier projection guide is positioned in the direction and the position of the carrier projection screw which are satisfactorily placed by medical staff, and the screw cannot penetrate out of the lower joint surface. The medical staff then inserts the hollow needle from the first guiding hole, which guides the hollow needle. The healthcare worker then adjusts the position of the guide structure so that the central axis of the screw guide hole of the guide structure coincides with the appropriate staple feeding position. After the guide structure is adjusted, medical staff can adjust in multiple directions according to the fracture line direction of a patient and bone at the nail placement position, so that the satisfactory screw direction of the medical staff is obtained, then the medical staff drills holes and implants the bone of the patient, the guide of the screw is accurate, the traditional blind-typing operation mode through the experience of a doctor is avoided, the distance-bearing protruding screw can be placed more accurately, the operation quality is improved, and the operation time is shortened.

As a further improvement of the above technical solution, the guide plate is provided with a first guide groove, the first guide groove extends along the first adjustment path, and the connecting member is provided with a first moving block, and the first moving block is slidingly connected with the first guide groove.

Through above-mentioned technical scheme, realize the direction of deflector and connecting elements through the connection of first guide way and first movable block, simple structure, processing is convenient.

As a further improvement of the above technical solution, the number of the guide plates is two, and the connecting member is disposed between the two guide plates.

Through the technical scheme, the two guide plates are respectively arranged on the two sides of the connecting member, so that the stability of the connecting member during sliding can be improved.

As a further improvement of the technical scheme, the guide arm is arc-shaped, extends along the second adjusting path, the guide structure is provided with a second guide groove, the guide arm penetrates through the second guide groove, and the guide arm is connected with the second guide groove in a sliding manner.

Through above-mentioned technical scheme, lead to the arm through the second guide way, slot type structure processing is convenient.

As a further improvement of the above technical solution, the connecting member includes a connecting piece and a rotating piece, the connecting piece is rotationally connected with the rotating piece, the connecting piece slides with the guide plate, and the guide arm and the positioning arm are mounted on the rotating piece.

Through above-mentioned technical scheme, the connecting piece plays the effect to connecting member's direction and connection, and the rotating member plays the effect of adjusting the angle of leading arm and locating arm, through the angle of adjusting leading arm and locating arm, can adapt the foot of the patient of placing with different inclination to reach the effect that improves this load apart from the application scope of abrupt director.

As a further improvement of the technical scheme, the connecting piece is connected with the rotating piece through a locking structure.

As a further improvement of the above technical solution, the connecting member and the guide plate are connected by a locking structure.

As a further improvement of the technical scheme, the guide structure is connected with the guide arm through a locking structure.

As a further improvement of the technical scheme, the locking structure is set as a screw.

As a further improvement of the above technical solution, the locking structure includes a lock pin and a plurality of pin holes.

The beneficial effects of the utility model are as follows: the scheme ensures accurate guide of the load-distance process screw in the minimally invasive calcaneus fracture operation, and ensures accuracy of the load-distance process of the calcaneus fixed by the screw. Because the calcaneus apophyma is the calcaneus with the strongest bone mass in the calcaneus, which is the cancellous bone, in the case of fractures, it is often necessary to rely on screws to provide stability to the subtalar joint surface by fixation of the apophyma. And the damage to blood vessels, nerves and tendons around calcaneus load-distance processes caused by improper screw directions is avoided. And the nail-in point of the load-distance protruding screw can be adjusted and selected in multiple directions according to the fracture line types of different patients and according to different bone states at the nail-in point. The outer side wall and the carrying process are fixed into a whole, so that the outer side wall of the crushed calcaneus is reliably stabilized. The surgical operation mode that medical staff avoid touch typing through the experience of doctors in the middle of surgery in the past is replaced, so that the surgical quality is improved, and the surgical time is shortened. In addition, for the operation of partial calcaneus fracture closed reset screw internal fixation, the operation can be completed faster and better, and unnecessary repeated actions and repeated guide needle puncture are avoided.

The utility model is used in the technical field of medical appliances.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the drawings that are required to be used in the description of the embodiments will be briefly described below. It is evident that the drawings described are only some embodiments of the utility model, but not all embodiments, and that other designs and drawings can be obtained from these drawings by a person skilled in the art without inventive effort.

Fig. 1 is a schematic overall structure of an embodiment of the present utility model.

100, a fixed base; 200. a guide plate; 210. a first guide groove; 300. a connecting member; 301. a first guide hole; 310. a connecting piece; 311. a first guide; 320. a rotating member; 400. a guide arm; 410. a screw passing hole; 420. a guide structure; 421. a second guide groove; 422. screw guide holes; 500. a positioning arm; 501. a positioning end; 600. and a locking structure.

Detailed Description

The conception, specific structure, and technical effects produced by the present utility model will be clearly and completely described below with reference to the embodiments and the drawings to fully understand the objects, features, and effects of the present utility model. It is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and that other embodiments obtained by those skilled in the art without inventive effort are within the scope of the present utility model based on the embodiments of the present utility model. In addition, all coupling/connection relationships mentioned herein do not refer to direct connection of the components, but rather, refer to the fact that a more optimal coupling structure may be formed by adding or subtracting coupling aids depending on the particular implementation. The technical features in the utility model can be interactively combined on the premise of no contradiction and conflict.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

Referring to fig. 1, the loading protrusion guide includes a fixing base 100, a guide plate 200, a connection member 300, a guide arm 400, and a positioning arm 500.

The fixed base 100 is a rectangular component, and a counterweight is arranged in the fixed base 100 to increase the weight of the fixed base 100 and improve the stability of the load distance protrusion guide in actual use. And the lower end of the fixing base 100 is fixed with a non-slip mat to prevent the fixing base 100 from generating a large displacement in the actual use process. Thereby improving the accuracy of the operation.

The number of the guide plates 200 is two, and the two guide plates 200 are arranged at intervals. The guide plate 200 is fixedly mounted to the fixing base 100 by a conventional fixing structure such as a screw. The guide plate 200 is arc-shaped as a whole, and the guide plate 200 extends along the first adjusting path, the guide plate 200 is provided with a first guide groove 210 penetrating along the left-right direction, the first guide groove 210 is also arc-shaped, and the arc-shaped openings of the first guide groove 210 and the guide plate 200 face the operation side.

The connection member 300 includes a rotation piece 320 and a connection piece 310 (in other embodiments, the connection member 300 may be provided as an integral member, but the integral member lacks a function of rotating the inclination angle of the guide arm 400 and the positioning arm 500), the rotation piece 320 is provided at a side of the connection piece 310 away from the operation side (in other embodiments, the rotation piece 320 may be provided at a side of the connection piece 310 near the operation side), and the rotation piece 320 and the connection piece 310 are connected by a rotation shaft, so that the rotation piece 320 and the connection piece 310 can relatively rotate. The rotation axes of the rotation member 320 and the connection member 310 pass through the first guide groove 210 and the center of the arc of the guide plate 200.

The connecting member is provided with a first guide hole penetrating the rotating member and the connecting member, and the first guide hole penetrates the rotating shaft of the rotating member and the connecting member.

The connection member 300 is provided at both ends thereof with first guides 311, respectively, specifically, the first guides 311 are fixed to the connection member 310, the two first guides 311 are respectively disposed in the first guide grooves 210 of the two guide plates 200, and the first guide grooves 210 are slidably connected with the first guides 311. The cooperation of the first guide groove 210 and the first guide 311 guides the movement direction of the connection member 300 such that the connection member 300 moves along the arc-shaped first adjustment path.

A locking structure 600 is provided between the rotating member 320 and the connecting member 310, and specifically, the locking structure 600 is provided as a screw. The threaded portion of the locking structure 600 is in threaded connection with the rotating member 320, and the tail end of the threaded portion of the locking structure 600 abuts against the connecting member 310, so as to achieve locking between the rotating member 320 and the connecting member 310.

In other embodiments, capture structure 600 includes a locking pin and a locking aperture. The lockpin is connected with the rotating piece 320 through the connecting wire, or the lockpin is connected with the rotating piece 320 through the limiting structure, the lockhole is formed in the connecting piece 310, the number of the lockholes is multiple, the lockholes are distributed at equal intervals along the relative movement direction of the rotating piece 320 and the connecting piece 310, when the rotating piece 320 rotates to a certain angle, the lockpin can be inserted into the corresponding lockhole, and the lockpin and the lockhole can be matched with the lockhole to limit the relative rotation of the rotating piece 320 and the connecting piece 310, so that the locking position between the rotating piece 320 and the connecting piece 310 is realized.

A locking structure 600 is disposed between the connecting member 300 and the guide plate 200, specifically, the locking structure 600 is provided as a screw (in other embodiments, the locking structure 600 may be provided as a locking pin and a locking hole). The threaded portion of the locking structure 600 is in threaded connection with the guide plate 200, and the tail portion of the threaded portion of the locking structure 600 is fixedly connected with the first guide member 311.

The guide arm 400 and the positioning arm 500 are respectively disposed at both sides of the connection member 300, and the guide arm 400 and the positioning arm 500 are fixedly connected with the rotator 320.

The end of the positioning arm 500 remote from the connecting member 300 is provided with a positioning end 501, the positioning end 501 faces the operation side, and the extension axis of the positioning end 501 passes through the center of the first adjustment path. When in use, the positioning end 501 of the positioning arm 500 is fixed on the surface mark of the carrier projection, and the positioning end 501 is used for positioning the carrier projection and accurately guiding the subsequent screw placement.

The guide arm 400 has an arc-shaped structure, the guide arm 400 extends along the second adjustment path, and the arc-shaped opening of the guide arm 400 faces the operation side. The center of the second adjusting path coincides with the center of the first adjusting path. The guide arm 400 is provided with a screw passing groove through which a screw passes.

The guide arm 400 is provided with the guide structure 420, the guide structure 420 is provided with the second guide groove 421, the guide arm 400 penetrates through the second guide groove 421, the guide arm 400 is connected with the second guide groove 421 in a sliding mode, and the guide structure 420 can move along the arc-shaped second adjusting path through the second guide groove 421 and the guide arm 400. The guide structure 420 is provided with a screw guide hole for guiding the screw, and the screw guide hole is communicated with the screw passing groove.

The locking structure 600 is disposed between the guide arm 400 and the guide structure 420, and the locking structure 600 is identical to the structure of the rotating member 320 and the connecting member 310 described above, and is modified only to adapt to different components, which will not be described in detail herein.

The connecting piece 310 plays a role in guiding and connecting the connecting member 300, and the rotating piece 320 plays a role in adjusting the angles of the guiding arm 400 and the positioning arm 500, and feet of patients placed at different inclined angles can be adapted by adjusting the angles of the guiding arm 400 and the positioning arm 500, so that the effect of improving the application range of the load distance protruding guide is achieved.

The implementation principle of the embodiment is as follows: the medical staff adjusts the heights of the guide arm 400 and the positioning arm 500 and the inclination angles of the guide arm 400 and the positioning arm 500 according to the inclination angles of the feet of a patient, and rotates the locking structure 600 for the heights of the guide arm 400 and the positioning arm 500 and the inclination angles of the guide arm 400 and the positioning arm 500 so that the tail end of the locking structure 600 contacts with the components, thereby realizing locking among different components; the healthcare worker then contacts the positioning end 501 with the patient's load lobe surface feature, and fine-adjusts the heights of the guide arms 400, 500 and the tilt angles of the guide arms 400, 500 again so that the load lobe guide is in a posture suitable for the patient to perform surgery. Medical personnel put into the hollow needle from first guiding hole, and first guiding hole is directed hollow needle. The healthcare worker then adjusts the position of the guide structure 420 such that the central axis of the screw guide hole of the guide structure 420 coincides with the appropriate staple feeding position. After the guide structure 420 is adjusted, the medical staff performs operations such as drilling holes and implanting screws on the bone of the patient, so that the operation quality is improved.

While the preferred embodiment of the present utility model has been described in detail, the utility model is not limited to the embodiments, and various equivalent modifications and substitutions can be made by those skilled in the art without departing from the spirit of the utility model, and these modifications and substitutions are intended to be included in the scope of the present utility model as defined in the appended claims.

Claims

1. The carrier distance is a protruding director, its characterized in that: is provided with an operation side, and the load distance protrusion guide device comprises:

a fixed base;

the guide plate is arranged on the fixed base;

2. The pitch-catch guide of claim 1, wherein: the guide plate is provided with a first guide groove, the first guide groove extends along the first adjusting path, the connecting member is provided with a first moving block, and the first moving block is slidably connected with the first guide groove.

3. The pitch-catch guide of claim 2, wherein: the number of the guide plates is two, and the connecting component is arranged between the two guide plates.

4. The pitch-catch guide of claim 1, wherein: the guide arm is arc, the guide arm is followed the second regulation route extends, the guide structure is equipped with the second guide way, the guide arm passes the second guide way, the guide arm with the second guide way slides and is connected.

5. The pitch-catch guide of claim 1, wherein: the connecting member comprises a connecting piece and a rotating piece, the connecting piece is rotationally connected with the rotating piece, the connecting piece slides with the guide plate, and the guide arm and the positioning arm are installed on the rotating piece.

6. The pitch-catch guide of claim 5, wherein: the connecting piece is connected with the rotating piece through a locking structure.

7. The pitch-catch guide of claim 1, wherein: the connecting component is connected with the guide plate through a locking structure.

8. The pitch-catch guide of claim 1, wherein: the guide structure is connected with the guide arm through a locking structure.

9. The load moment guide according to any one of claims 6-8, wherein: the locking structure is set as a screw.

10. The load moment guide according to any one of claims 6-8, wherein: the capture structure includes a locking pin and a plurality of pin holes.