CN105748111A - Rib fretsaw locator for thoracoscope - Google Patents

Abstract

The invention discloses a thoracoscopic rib wire saw positioner. The positioning tube is composed of two positioning branch tubes with the same structure and size. The two positioning branch tubes are arranged side by side and close together. Saw through; the positioning branch pipe is a hard pipe, and is composed of a straight pipe section and an arc pipe section, in which the front end of the straight pipe section is smoothly connected with the back end of the arc pipe section, and the bending directions of the two positioning branch pipes are consistent; the rear of the straight pipe section. The present invention can pass through the wire saw, so that the wire saw can be isolated from the damaged incision, lung and large intrathoracic blood vessels, thereby fundamentally preventing the rough and sharp wire saw from damaging the incision, lung and large intrathoracic blood vessels The front end of the arc-shaped pipe section of the present invention can be in close contact with the surface of the rib to be removed, thereby accurately positioning the wire saw, and then avoiding the wire saw from shaking violently when removing the rib, which can ensure the smooth progress of the operation and the accuracy of the removal, and avoid the occurrence of secondary damage.

Description

A thoracoscopic rib wire saw positioner

technical field

The invention belongs to the field of medical equipment, and in particular relates to a thoracoscopic rib wire saw positioner.

Background technique

In medical practice, patients with benign or malignant rib tumors are often encountered, and the diseased ribs need to be removed at this time. At present, the popular method in China is: cut the skin and muscles of the chest first, and then remove the diseased ribs after exposing the ribs. Large, slow recovery in the later stage, long scars on the skin affect the appearance, and even cause long-term muscle dysfunction, resulting in inconvenient shoulder movement.

The thoracoscopic technique, which has been gradually developed in recent years, performs surgical operations on intrathoracic lesions through small incisions or holes in the chest wall. While completing the operation with high quality, it does not cut off the chest wall muscles and does not stretch the ribs, thus significantly reducing the surgical trauma. At present, it has been widely used in various lesions in the chest cavity such as lung cancer resection and esophageal cancer resection. However, due to the lack of effective thoracoscopic rib resection instruments, it is difficult to carry out thoracoscopic rib resection. At present, foreign countries also have the technology of removing ribs under thoracoscopic conditions. The specific implementation methods are as follows: 1. Rib scissors are used under thoracoscopy, which are similar to scissors. , the rib incision is not neat; 2. Under the thoracoscope, the lengthened dental drill is used to cut off the ribs that have lost normal function. The dental drill is not easy to fix, and it is easy to slide; 3. Use a wire saw under the thoracoscope. This method directly incisions on the surface of the ribs, guides the wire saw around the ribs, and then cuts the ribs from the outside of the human body; the above wire saw cutting method The main defects are as follows: a. At present, the wire saw is imported from the chest cavity. Because the ribs are curved, the wire saw is easy to slide on the ribs, and there are often problems with poor positioning. Improper scope; b. Due to the rough and sharp surface of the wire saw, it is easy to damage the incision, lungs and large blood vessels in the chest when moving back and forth in the chest cavity to cut off the ribs, resulting in undue side damage and even death of the patient.

Contents of the invention

The technical problem to be solved by the present invention is to provide a thoracoscopic rib wire saw positioner. The positioner is intended to precisely position the wire saw at the site to be cut, and separate the wire saw from the incision, the lungs, and the great blood vessels in the chest.

The technical scheme of the present invention is as follows: a thoracoscopic rib wire saw positioner, characterized in that: the positioner is composed of a positioning tube (1) and a handle structure (2), wherein the positioning tube (1) is composed of two structures and dimensions The exact same positioning branch pipe (1a) is composed, the two positioning branch pipes are side by side and close together, and the center hole of the positioning branch pipe (1a) is used for the wire saw to pass through; the positioning branch pipe (1a) is a hard pipe, And it is composed of a straight pipe section (1a-1) and an arc pipe section (1a-2), wherein the front end of the straight pipe section (1a-1) is smoothly connected with the rear end of the arc pipe section (1a-2), and two positioning branch pipes ( 1a) have the same bending direction;

The handle structure (2) is arranged at the rear of the straight pipe section (1a-1) of the positioning branch pipe (1a), and the handle structure is used for being held by the operator.

When using the present invention to carry out the rib resection operation, first cut a small incision of 2 cm away from the position where the rib needs to be removed, and introduce the wire saw (3) from the small incision, secondly surround the rib from the chest cavity, and then use the wire saw to guide The hook (4) penetrates the two ends of the jigsaw into the two positioning branch pipes (1a), and pulls out the rear end of the positioning branch pipe (1a) from the rear end of the positioning branch pipe (1a), and pulls the positioning branch pipe (1a) Insert the curved tube section (1a-2) and the front part of the straight tube section (1a-1) into the patient's thorax through a small incision; the front end of the curved tube section (1a-2) is then in close contact with the surface of the rib to be resected, and the final operation The operator pulls the jigsaw back and forth outside the body to remove the ribs that need to be removed.

By adopting the above technical scheme, the present invention can pass the wire saw through, so that the wire saw can be isolated from the damaged incision, lung and large blood vessels in the chest, thereby fundamentally preventing the rough and sharp wire saw from injuring the incision, lung and the large blood vessels in the chest, so as to avoid unnecessary side damage; at the same time, the front end of the arc-shaped tube section of the present invention can be in close contact with the surface of the rib to be resected, so that the wire saw can be accurately positioned, and the sharpness of the wire saw can be avoided when the rib is resected. Shake, so as to ensure the smooth progress of the operation and the accuracy of the resection, and avoid secondary damage. Simultaneously, the front end of the present invention is an arc-shaped pipe section, which has the function of bypassing obstacles, so that the position of the small incision can be selected flexibly, thereby avoiding direct incision at the superficial skin where ribs need to be removed. This function is useful for chest wall tuberculosis, It is especially useful for patients who have undergone radiotherapy. In addition, although the present invention has a simple structure, it effectively solves the defects of the prior art and kills two birds with one stone. At the same time, due to the simple structure, the cost is low, and it is easy to popularize and apply.

As an important optimization solution of the present invention, the handle structure (2) is composed of two handle rings (2a), which are located at the rear of the straight pipe section (1a-1), and the two handle rings (2a) are arranged side by side on both sides of the positioning pipe (1), and the two handle rings (2a) are located on the same plane, which is perpendicular to the plane where the two positioning branch pipes (1a) are located.

With the above structure, the operator can conveniently and firmly hold the handle structure (2), thereby grasping the present invention, so that the front end of the arc-shaped pipe section (1a-2) can be effectively brought into close contact with the ribs and accurately positioned , so as to ensure the smooth progress of rib resection surgery.

As an important optimized design, both the front opening and the rear opening of the center hole of the positioning branch pipe (1a) have rounded edges.

The above structural design can effectively reduce the wear of the wire saw and the inner hole wall of the positioning branch pipe (1a), which is helpful for prolonging the service life of the wire saw and the present invention, and can also pull the wire back and forth smoothly and labor-saving saw, so as to ensure the smooth progress of the rib resection operation, killing two birds with one stone.

In this case, the width (D) of the positioning tube (1)≤1.2cm, and the thickness (C) of the positioning tube (1)≤0.5cm.

With the above structural design, the width (D) of the positioning tube (1) is ≤1.2cm, and the thickness (C) of the positioning tube (1) is ≤0.5cm, which not only ensures the structural strength, but also allows the positioning tube (1) to The intercostal nerves are prevented from being pressed by the positioning tube (1) through the intercostal space, thereby reducing the pain of the patient and ensuring the smooth progress of the rib resection operation. The applicant has devoted creative efforts to the combined design of these two parameters and achieved good technical results.

Preferably, the central angle (α) corresponding to the arc-shaped pipe section (1a-2) is 10°-60°, and can be further preferably 20°, 30°, 40° or 50°, and the arc-shaped pipe section ( The size of 1a-2) can ensure that obstacles such as scapula or spine in the chest cavity can be effectively bypassed.

Beneficial effect: the present invention can pass through the wire saw, so that the wire saw can be isolated from the damaged incision, lung and large blood vessels in the chest, thereby fundamentally preventing the rough and sharp wire saw from injuring the incision, lung and chest Inner large blood vessels, so as to avoid unnecessary secondary damage; at the same time, the front end of the arc-shaped pipe section of the present invention can be in close contact with the surface of the rib to be resected, so that the wire saw can be positioned accurately, and the wire saw can be avoided from shaking violently when the rib is removed. In this way, the smooth progress of the operation and the accuracy of resection can be guaranteed, and side damage can be avoided; in addition, although the present invention has a simple structure, it effectively solves the defects of the prior art, killing two birds with one stone, and at the same time, the simple structure also makes the cost low and easy to popularize It has a long service life and use value.

Description of drawings

Fig. 1 is a perspective view of the present invention;

Fig. 2 is the front view of the present invention;

Fig. 3 is the A direction view of Fig. 2;

Fig. 4 is a schematic diagram of the use of the present invention.

detailed description

Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

As shown in Figures 1-4, a thoracoscopic rib wire saw positioner is composed of a positioning tube 1 and a handle structure 2. Both the positioning tube 1 and the handle structure 2 are made of stainless steel or medical plastic. The pipe 1 is composed of two positioning branch pipes 1a with identical structure and size, and the two positioning branch pipes are arranged side by side and close together. The central hole of the positioning branch pipe 1 a is used for passing the wire saw 3 , and the diameter of the central hole of the positioning branch pipe 1 a is slightly larger than the outer diameter of the wire saw 3 . The positioning branch pipe 1a is a hard pipe, and is composed of a straight pipe section 1a-1 and an arc-shaped pipe section 1a-2, wherein the front end of the straight pipe section 1a-1 is smoothly connected with the rear end of the arc-shaped pipe section 1a-2, and the bending of the two positioning branch pipes 1a The direction is the same, and the two positioning branch pipes 1a are on the same plane. The front orifice and the rear orifice of the central hole of the positioning branch pipe 1a all have arc edges. The width D of the positioning tube 1 is ≤ 1.2 cm, and can be further preferably 1.1 cm, 1 cm or 0.9 cm. And the thickness C of the positioning tube 1 is ≤0.5 cm, and can be further preferably 0.4 or 0.3 cm. The central angle α corresponding to the arc-shaped pipe section 1a-2 is 10°-60°.

As shown in Figures 1-4, the handle structure 2 is set at the rear of the straight pipe section 1a-1 of the positioning branch pipe 1a. The handle structure is used for the operator to hold and can limit the insertion depth of the positioning tube 1 into the patient's body. effect. In this case, the handle structure 2 is composed of two handle rings 2a, which are located at the rear of the straight pipe section 1a-1, and these two handle rings 2a are arranged side by side on both sides of the positioning tube 1, and the two handle rings 2a are located on the same plane, which is perpendicular to the plane where the two positioning branch pipes 1a are located.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of the present invention. within the scope of protection.

Claims (5)

1. A thoracoscopic rib wire saw locator, characterized in that: the locator is composed of a positioning tube (1) and a handle structure (2), wherein the positioning tube (1) consists of two positioning branch tubes with the same structure and size (1a), the two positioning branch pipes are side by side and close together, and the central hole of the positioning branch pipe (1a) is used for the wire saw to pass through; the positioning branch pipe (1a) is a hard pipe, and consists of a straight pipe section ( 1a-1) and arc-shaped pipe section (1a-2), wherein the front end of the straight pipe section (1a-1) is smoothly connected with the rear end of the arc-shaped pipe section (1a-2), and two positioning branch pipes (1a) bend direction consistent; The handle structure (2) is arranged at the rear of the straight pipe section (1a-1) of the positioning branch pipe (1a), and the handle structure is used for being held by the operator. 2. The thoracoscopic rib wire saw positioner according to claim 1, characterized in that: the handle structure (2) is composed of two handle rings (2a), and these two handle rings are located in the straight pipe section (1a -1), and the two handle rings (2a) are arranged side by side on both sides of the positioning tube (1), and the two handle rings (2a) are located on the same plane, which is the same as the two positioning tubes The plane where the branch pipe (1a) is located is vertical. 3. The thoracoscopic rib wire saw positioner according to claim 1, characterized in that: the front opening and the rear opening of the center hole of the positioning branch pipe (1a) are both inverted with arc edges. 4. The thoracoscopic rib wire saw positioner according to claim 1, characterized in that: the width (D) of the positioning tube (1)≤1.2cm, and the thickness (C) of the positioning tube (1)≤0.5cm cm. 5. The thoracoscopic rib wire saw positioner according to claim 1, characterized in that: the central angle (α) corresponding to the arc-shaped pipe section (1a-2) is 10°-60°.