CN207837590U - A kind of hitch frame for arthrocsopic surgery - Google Patents

Abstract

The utility model discloses a traction frame for arthroscopic surgery, which comprises a base, a lifting pillar, a turning and rotating mechanism, a boom, and a traction mechanism. The lower end of the lifting pillar is fixed on the base, and the lifting pillar The upper end is connected to the turning and turning mechanism. One end of the boom is movably set in the turning and turning mechanism, and the other end is provided with a traction mechanism. The turning or turning of the boom is adjusted through the turning and turning mechanism, driving and pulling the mechanism Bound upper body for traction. The utility model can adjust the position of the boom according to the actual injury of the patient by setting the turning and rotating mechanism, which greatly reduces the possibility of shaking, unstable traction and easy displacement of the affected limb during the operation, so that the operation can be performed smoothly. went well.

Description

A traction frame for arthroscopic surgery

technical field

The invention belongs to the technical field of medical devices, and relates to an upper limb multi-angle traction frame for shoulder arthroscopic surgery related to sports medicine, in particular to a traction frame for arthroscopic surgery.

Background technique

Sports injury is a common type of injury, which usually involves multiple large and small joints in the whole body. With the increasing love and participation of Chinese people in sports, the age involved in sports injuries is also tending to be younger year by year. It is precisely because of young people's requirements for postoperative aesthetics that the treatment of sports injuries is currently the first choice for orthopedic minimally invasive surgical arthroscopic treatment.

Minimally invasive surgery is one of the high-tech achievements of high-tech surgery in the field of clinical medicine across the century. A representative of minimally invasive surgical instruments is an endoscope. For example, using a keyhole-sized hole or a small incision, various surgical operations such as resection of intra-abdominal viscera, deformity correction, repair or reconstruction can be performed, and finally the purpose of treatment can be achieved. Minimally invasive surgery is different from surgical operations in the last century in that the former can reduce the area of surgical wounds, avoid infection caused by large-scale exposure of internal tissues, and enable patients to heal more quickly, shortening hospital stays and medical expenses. Minimally invasive surgical instruments minimize the internal trauma caused by conventional surgery. Therefore, the study believes that minimally invasive surgery is a "milestone across the century." For example, arthroscopic surgery is a major progress of the concept of minimally invasive surgery in the field of orthopedics, and it is the development direction of joint surgery. Foreign countries have gradually applied it to clinical practice since the 1970s, and my country introduced this technology in the 1980s. In recent years, with the development of medical knowledge and the continuous improvement of medical equipment, arthroscopic surgery has been accepted by more and more doctors and patients due to its remarkable advantages, bringing good news to the majority of patients with joint diseases. After decades of rapid development, it has now been applied to most fields of orthopedics, especially in the arthroscopic surgical technique of the knee, and various new methods emerge in endlessly and change with each passing day.

With the development of open surgery characterized by "big trauma" to minimally invasive surgery characterized by "minor trauma", it has become an inevitable trend to explore a new generation of minimally invasive surgical instruments for natural orifices. If a worker wants to do a good job, he must first sharpen his tools. Facing the needs of the development of life medicine, exploring the scientific principles of innovative design and bionic manufacturing of advanced surgical instruments is one of the important tasks of mechanical engineering. At present, due to the lack of fundamental changes in the design concept of minimally invasive surgical instruments, many complex and delicate operations cannot be completed. For a long time, my country's basic research in this direction has been insufficient, which has restricted the development of minimally invasive surgical instrument technology. The scientific basis for the creation and manufacture of minimally invasive surgical instruments involves the interdisciplinary integration of mechanical science, life science, and clinical medicine. Through the research on basic theories and methods of minimally invasive surgical instruments, new treatment principles and tools will be provided for clinical medicine. Research will lead to new revolutions in medical technology.

When performing multiple arthroscopic operations, due to the narrow joint space of some joints, it is not convenient to use endoscopic instruments for surgical operations. As needed, the arthroscopic traction frame first pulls and opens the joint space of the involved joints, so as to facilitate the operation. Arthroscopy in all directions is performed within the dilated potential cavity.

At present, the main problem with the traction frame for arthroscopic surgery is that the main structure of the traction frame is mostly composed of steel cables and fixed booms. The mechanical strength is poor. It needs to be kept stable with multiple buckets of pure water pressure at the bottom during the operation to be normal. use. At the same time, the structure stability of the boom steel cable of the existing traction frame for arthroscopic surgery is very low, which causes the affected limb to shake during the operation, interferes with the operation, and easily causes pollution.

The first thing that needs to be solved is the stability of the traction frame for arthroscopic surgery. Since there is no suitable structure of the traction frame on the market to solve the problem of shaking and instability during use, the expansion of the joint space is unstable, which adds a lot to the operation under the microscope. Potential uncertain factors, and because the shoulder joint is rich in nerves and blood vessels, a little carelessness can cause serious iatrogenic injury, which will affect the final surgical effect.

Utility model content

In view of this, the main purpose of the present utility model is to provide a traction frame for arthroscopic surgery, which solves the problems that the existing traction frame is easy to shake during the operation and the traction is unstable, which affects the smooth progress of the operation.

In order to achieve the above object, the technical solution of the present utility model is achieved as follows: a traction frame for arthroscopic surgery, including a base, lifting pillars, turning and rotating movement mechanism, boom, traction mechanism, the lifting pillar The lower end is fixed on the base, and the upper end of the lifting column is connected to the turning and turning mechanism. One end of the boom is movably arranged in the turning and turning mechanism, and the other end is provided with a traction mechanism. Through the turning and turning mechanism, Adjust the flip or rotation of the boom to drive the upper limbs bound to the traction mechanism for traction.

Preferably, the overturning and turning movement mechanism includes a traction block, a first locking mechanism, and a second locking mechanism, the traction block is connected to the upper end of the lifting column, the boom is passed through the traction block, and the The first locking mechanism is arranged on the side of the upper end of the lifting pillar, the traction block is turned left and right through the first locking mechanism, the second locking mechanism is arranged on the side of the traction block, and the boom passes through the first locking mechanism. The second locking mechanism rotates up and down in the traction block.

Preferably, it also includes a connection mechanism through which the traction mechanism is connected to the boom.

Preferably, the traction mechanism is a pulley block.

Preferably, the connecting mechanism is a fixed rod, one end of the fixed rod is fixedly connected to the boom, and the other end is connected to the upper end of the bracket of the pulley block.

Preferably, the connecting mechanism includes a cylindrical groove and a T-shaped bar, the cylindrical groove is arranged at the end of the boom, the upper end of the T-shaped bar is matched with the cylindrical groove, and the The lower end of the T-shaped bar is connected to the upper end of the bracket of the pulley block, and the edge of the cylindrical groove is oppositely provided with a protrusion to prevent the T-shaped bar from falling off.

Preferably, the edge of the cylindrical groove is provided with a positioning cylinder along the axial direction of the T-shaped bar, and the position corresponding to the T-shaped bar and the positioning cylinder is provided with a positioning groove for embedding the positioning cylinder, and the positioning cylinder Two-way extensions are provided at the position connecting with the fixed column, and a wing nut is provided on the thread.

Preferably, the upper part of the lifting column is arranged in an L shape, and the traction block is arranged at the top of the lifting column.

Preferably, the boom is arc-shaped, limiting grooves are provided on opposite sides of the boom, and the second locking mechanism is arranged on the side of the boom provided with the limiting grooves.

Preferably, at least two sliding mechanisms are provided on the bottom of the base, and brake mechanisms are respectively provided on the three sliding mechanisms.

Compared with the prior art, the utility model can adjust the position of the boom according to the actual injury of the patient by setting the turning and rotating mechanism, which greatly reduces the shaking of the affected limb, unstable traction and easy displacement during the operation. possibility, so that the operation can be carried out smoothly.

Description of drawings

Fig. 1 is a side view of a first embodiment of a traction frame for arthroscopic surgery of the present invention;

Fig. 2 is a schematic structural view of the traction mechanism in the first embodiment of the traction frame for arthroscopic surgery of the present invention;

Fig. 3 is a side view of a second embodiment of a traction frame for arthroscopic surgery of the present invention;

Fig. 4 is a schematic structural view of the connecting mechanism in the second embodiment of the traction frame used for arthroscopic surgery of the present invention;

Fig. 5 is a schematic diagram of the structure of the rotation of the traction block in the traction frame used for arthroscopic surgery of the present invention;

Fig. 6 is a three-dimensional structural schematic diagram of a traction frame used for arthroscopic surgery according to the present invention.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

Example 1

The utility model provides a traction frame for arthroscopic surgery, as shown in Figure 1, Figure 5 and Figure 6, comprising a base 1, a lifting pillar 2, an overturning and rotating movement mechanism 3, a boom 4, and a traction mechanism 5 , the lower end of the lifting pillar 2 is fixed on the base 1, the upper end of the lifting pillar 2 is connected to the turning and turning mechanism 3, one end of the boom 4 is movably arranged in the turning and turning mechanism 3, and the other end is provided with a traction mechanism 5, through The overturning and turning motion mechanism 3 adjusts the boom 4 to overturn or rotate, and drives the upper limb bound with the traction mechanism 5 for traction; wherein, the overturning and turning motion mechanism 3 includes a traction block 31, a first locking mechanism 32, a second locking mechanism Mechanism 33, the traction block 31 is connected to the upper end of the lifting column 2, the boom 4 is penetrated in the traction block 31, the first locking mechanism 32 is arranged on the side of the upper end of the lifting column 2, and the traction block 31 is locked by the first lock. Mechanism 32 turns left and right, and second locking mechanism 33 is arranged on the side of traction block 31, and boom 4 rotates up and down in traction block 31 by second locking mechanism 33; By setting the boom 4 that can rotate up and down and The traction block 31, which can be turned left and right, realizes that the position of the boom 4 can be adjusted according to the actual injury of the patient, which greatly reduces the possibility of shaking of the affected limb, unstable traction, and easy displacement during the operation, so that the operation can be performed smoothly. went well.

Further, as a preference, the top of the lift column 2 is L-shaped, and the traction block 31 is arranged on the top of the lift column 2, so that the distance between the boom 4 and the injured limb of the patient can be shortened, and the traction efficiency is high; as a preference , the boom 4 is arc-shaped or semicircular, etc., the opposite sides of the boom 4 are provided with limiting grooves 41, and the second locking mechanism 33 is arranged on the side of the boom 4 provided with the limiting grooves; The arm 4 is set in an arc or a semicircle, etc., which can not only increase the stability of the entire traction frame, but also prevent the doctor from being bumped during the operation, increase the concentration of the doctor when performing the operation, and make the operation go smoothly; The side of the boom 4 is provided with a limit groove 41, which increases the locking effect of the second locking mechanism and improves the stability of the boom 4 during the operation.

Further, it also includes a connection mechanism 6 through which the traction mechanism 5 is connected to the boom 4 .

Further, as shown in Figure 2, the traction mechanism 5 is a pulley block 51; by setting the pulley block 51, the traction rope used to pull the patient's upper limbs can be quickly connected with the traction frame and adjusted smoothly during the operation, so as to achieve the best Good traction effect.

The utility model provides the first connection mechanism, as shown in Figure 3, the connection mechanism 6 is a fixed rod, one end of the fixed rod is fixedly connected to the boom 4, and the other end is connected to the upper end of the bracket of the pulley block 51.

Further, as shown in Figure 1, at least three sliding mechanisms 11 are provided on the bottom of the base 1, and brake mechanisms 12 are respectively provided on the three sliding mechanisms 11, so that the setting can facilitate the taking and placing of the medical staff, and can prevent the During the operation, the entire traction frame moves to avoid traction displacement and affect the smooth progress of the operation.

The working process of the first embodiment of the utility model is as follows: 1) before pulling the upper limbs of the patient, adjust the height of the lifting pillar 2 according to the injured part of the upper limbs of the patient; 2) adjust the left and right of the traction block 31 through the first locking mechanism 32 Adjust and fix the traction block 31 for the angle of overturning, and then adjust the height of the boom 4 to rotate up and down through the second locking mechanism 33 so that it reaches the height required for the operation and then fix it; 3) Take the traction rope for the operation and pass it through The pulley block 51 pulls the sick upper limb of the patient so as to pull the upper limb of the injured patient.

Example 2

The utility model provides a traction frame for arthroscopic surgery, as shown in Fig. 3, Fig. 5 and Fig. 6, comprising a base 1, a lifting pillar 2, an overturning and rotating movement mechanism 3, a boom 4, and a traction mechanism 5 , the lower end of the lifting pillar 2 is fixed on the base 1, the upper end of the lifting pillar 2 is connected to the turning and turning mechanism 3, one end of the boom 4 is movably arranged in the turning and turning mechanism 3, and the other end is provided with a traction mechanism 5, through The overturning and turning motion mechanism 3 adjusts the boom 4 to overturn or rotate, and drives the upper limb bound with the traction mechanism 5 for traction; wherein, the overturning and turning motion mechanism 3 includes a traction block 31, a first locking mechanism 32, a second locking mechanism Mechanism 33, the traction block 31 is connected to the upper end of the lifting column 2, the boom 4 is penetrated in the traction block 31, the first locking mechanism 32 is arranged on the side of the upper end of the lifting column 2, and the traction block 31 is locked by the first lock. Mechanism 32 turns left and right, and second locking mechanism 33 is arranged on the side of traction block 31, and boom 4 rotates up and down in traction block 31 by second locking mechanism 33; By setting the boom 4 that can rotate up and down and The traction block 31, which can be turned left and right, realizes that the position of the boom 4 can be adjusted according to the actual injury of the patient, which greatly reduces the possibility of shaking of the affected limb, unstable traction, and easy displacement during the operation, so that the operation can be performed smoothly. went well.

Further, as a preference, the top of the lift column 2 is L-shaped, and the traction block 31 is arranged on the top of the lift column 2, so that the distance between the boom 4 and the injured limb of the patient can be shortened, and the traction efficiency is high; as a preference , the boom 4 is arc-shaped or semicircular, etc., the opposite sides of the boom 4 are provided with limiting grooves 41, and the second locking mechanism 33 is arranged on the side of the boom 4 provided with the limiting grooves; The arm 4 is set in an arc or a semicircle, etc., which can not only increase the stability of the entire traction frame, but also prevent the doctor from being bumped during the operation, increase the concentration of the doctor when performing the operation, and make the operation go smoothly; The side of the boom 4 is provided with a limit groove 41, which increases the locking effect of the second locking mechanism and improves the stability of the boom 4 during the operation.

Further, it also includes a connection mechanism 6 through which the traction mechanism 5 is connected to the boom 4 .

Further, the traction mechanism 5 is a pulley block 51; by setting the pulley block 51, the traction rope used to pull the upper limbs of the patient can be quickly connected with the traction frame of the present utility model and adjusted smoothly so as to achieve the best traction Effect.

The utility model provides a second connection mechanism, as shown in Figure 4, the connection mechanism 6 includes a cylindrical groove 61, a T-shaped bar 62, the cylindrical groove 61 is arranged on the end of the boom 4, and the T-shaped bar 62 The upper end is matched with the cylindrical groove 61 and connected, the lower end of the T-shaped bar 62 is connected with the upper end of the bracket of the pulley block, and the edge of the cylindrical groove 61 is relatively provided with a protrusion 63 to prevent the T-shaped bar 62 from falling off; as Preferably, the groove 61 is cylindrical or spherical (mainly the T-shaped bar 62 can rotate in the horizontal direction in the groove 81 , any structure involved in the groove 61 can be used), etc.

Further, the edge of the cylindrical groove 61 is provided with a positioning cylinder 64 along the axial direction of the T-shaped bar 62, and the position corresponding to the T-shaped bar 62 and the positioning cylinder 64 is provided with a positioning groove 65 for inserting the positioning cylinder 64, so The position where the positioning 64 meets the fixed column 51 is provided with two-way extending thread, and the thread is provided with a wing nut 66; this design can realize that when the pulley block 51 is adjusted to a proper position by adjusting the boom 4, the wing nut 66 can be rotated. The pulley block 51 is fixed to avoid rotation and shaking of the pulley block 51 during the operation, so that the operation can be carried out smoothly.

Further, as shown in Figure 1, the bottom of the base 1 is provided with at least three sliding mechanisms 11, and the three sliding mechanisms 11 are respectively provided with brake mechanisms 12; During the operation, the entire traction frame moves to avoid traction displacement and affect the smooth progress of the operation.

The working process of the second embodiment of the utility model is as follows: 1) before pulling the upper limbs of the patient, adjust the height of the lifting pillar 2 according to the injured part of the patient's upper limbs; 2) adjust the traction block 31 by the first locking mechanism 32 Adjust and fix the traction block 31 for the angle of overturning, and then adjust the height of the boom 4 to rotate up and down through the second locking mechanism 33 so that it reaches the height required for the operation and then fix it; 3) Take the traction rope for the operation and pass it through Pulley block 51, and turn pulley block 51 and make it forward to the appropriate position required for surgical traction, rotate wing nut 66 to fix it, and then pull the sick upper limb of the patient, so that the upper limb of the injured patient is pulled.

Compared with the prior art, the utility model can adjust the position of the boom according to the actual injury of the patient by setting the turning and turning mechanism 3 (the boom 4 that can rotate up and down and the traction block 31 that can turn left and right). It greatly reduces the possibility of shaking, unstable traction, and easy displacement of the affected limb during the operation, so that the operation can be carried out smoothly; it has breakthrough significance for the extensive development of arthroscopic shoulder and hip joint diseases, and enriches It is of great scientific significance to improve and improve existing medical devices and lead technological progress in related research fields.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model.

Claims (9)

1. a traction frame for arthroscopic surgery, it is characterized in that, comprises base, elevating strut, overturning and rotating motion mechanism, boom, traction mechanism, the lower end of described elevating strut is fixed on the base, and described elevating strut The upper end of the boom is connected to the turning and turning mechanism, one end of the boom is movably set in the turning and turning mechanism, and the other end is provided with a traction mechanism, and the turning or turning of the boom is adjusted through the turning and turning mechanism to drive and pull The upper limb bound by the mechanism is used for traction; The overturning and turning movement mechanism includes a traction block, a first locking mechanism, and a second locking mechanism. The traction block is connected to the upper end of the lifting column, the boom is passed through the traction block, and the first The locking mechanism is arranged on the side of the upper end of the lifting pillar, the traction block is turned left and right by the first locking mechanism, the second locking mechanism is arranged on the side of the traction block, and the boom is locked by the second locking mechanism. The mechanism rotates up and down in the traction block. 2 . The traction frame for arthroscopic surgery according to claim 1 , further comprising a connection mechanism, the traction mechanism is connected with the boom through the connection mechanism. 3 . 3 . The traction frame for arthroscopic surgery according to claim 2 , wherein the traction mechanism is a pulley block. 4 . 4. A kind of traction frame for arthroscopic surgery according to claim 3, characterized in that, the connecting mechanism is a fixed rod, one end of the fixed rod is fixedly connected with the boom, and the other end is connected with the pulley block. The upper end of the bracket is connected. 5. A traction frame for arthroscopic surgery according to claim 3, wherein the connecting mechanism comprises a cylindrical groove and a T-shaped bar, and the cylindrical groove is arranged at the end of the boom The upper end of the T-shaped bar is matched with the cylindrical groove, the lower end of the T-shaped bar is connected with the upper end of the bracket of the pulley block, and the edge of the cylindrical groove is oppositely provided to prevent the T-shaped bar from falling off. of the protrusion. 6. A traction frame for arthroscopic surgery according to claim 5, characterized in that a positioning cylinder is arranged along the axial direction of the T-shaped bar at the edge of the cylindrical groove, and the T-shaped bar The position corresponding to the positioning cylinder is provided with a positioning groove for embedding the positioning cylinder, and the position where the positioning cylinder connects with the fixed column is provided with threads extending in both directions, and wing nuts are provided on the threads. 7 . The traction frame for arthroscopic surgery according to any one of claims 1 to 6 , characterized in that, the upper part of the elevating strut is arranged in an L shape, and the traction block is disposed on the top of the elevating strut. 8 . 8. A traction frame for arthroscopic surgery according to claim 7, characterized in that, the boom is arc-shaped, and limiting grooves are arranged on opposite sides of the boom, and the second The locking mechanism is arranged on the side of the boom provided with the limit groove. 9 . The traction frame for arthroscopic surgery according to claim 8 , wherein at least three sliding mechanisms are provided on the bottom of the base, and brake mechanisms are respectively provided on the three sliding mechanisms.