Minimally invasive rib cutting device

Abstract

The utility model relates to the technical field of medical treatment, and particularly discloses a minimally invasive rib cutting device which comprises a cutting mechanism which is a linear saw. The threading needle is arranged in an arc shape, a cutting edge is arranged on the threading needle, and the end, without the cutting edge, of the threading needle is installed at the end of the linear saw and used for pulling the linear saw to penetrate through a rib; the linear saw comprises a hose arranged on the linear saw in a sleeving mode. According to the utility model, the linear saw is pulled to penetrate through the rib through the threading needle with the arc-shaped design, and then the rib is cut through the linear saw, so that the effect of minimally invasive operation cutting is achieved, and the hose sleeved on the linear saw can prevent the linear saw from hurting body tissues when the linear saw penetrates through the rib; when the linear saw penetrates through a rib, the linear saw can be stretched straight, so that a cutting edge on the linear saw faces the rib consistently, and the injury to muscular tissues is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical treatment, in particular to a minimally invasive rib cutting device. Background Art

[0002] Due to the special anatomical location of the ribs, it is difficult to use minimally invasive surgery for thoracic rib tumor resection. The technical difficulty during the operation lies in the cutting of the posterior ribs in the chest cavity. Conventional surgical instruments are difficult to reach, so there is an urgent need for a device that can minimally invasively cut the ribs. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a minimally invasive rib cutting device, which has the advantages of minimally invasive rib cutting and solves the problems in the background technology.

[0004] The minimally invasive rib cutting device of the utility model comprises: a cutting mechanism, which is a linear saw; a threading needle, which is arranged in an arc shape and has a cutting edge, and the end of the threading needle without the cutting edge is installed on the end of the linear saw to pull the linear saw through the ribs;

[0005] The linear saw comprises a hose which is sleeved on the linear saw.

[0006] In some embodiments, the linear saw includes a cutting section with a saw blade or saw teeth, the cutting section is located in the center of the linear saw, and both ends of the linear saw are gripping sections without saw blades or saw teeth.

[0007] In some embodiments, the end of the hose is detachably connected to the grip section of the linear saw.

[0008] In some embodiments, a hard docking ring is provided on the gripping section, and the hose is tightly sleeved on the surface of the docking ring;

[0009] Both ends of the docking ring are arranged in a truncated cone shape.

[0010] In some embodiments, the hose includes a fixed section and a detachable section, the adjacent ends of the fixed section and the detachable section are connected by a cutting section, and the fixed section is fixedly connected to a holding section at one end of the linear saw provided with a threading needle.

[0011] In some embodiments, the cutting section is arranged in the direction of the cutting edge after the introduction needle is rotated.

[0012] In some embodiments, the tail end of the linear saw is provided with a pull ring;

[0013] An opening is arranged at one end of the hose near the pull ring. By pulling the hose and the linear saw apart, the linear saw can cut the hose in the reverse direction along the opening, thereby facilitating the separation of the hose from the linear saw.

[0014] In some embodiments, an auxiliary cutting groove coinciding with the opening is provided on the inner wall of the hose along the linear saw direction.

[0015] In some embodiments, a detachment sheet is provided on the gripping section close to the pull ring, and a blade groove is provided on the detachment sheet at the opening of the hose.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0017] The utility model uses an arc-shaped guide needle to pull the linear saw through the ribs, and then cuts the ribs with the linear saw, thereby achieving a minimally invasive cutting effect, wherein the hose sleeved on the linear saw can prevent the linear saw from causing damage to body tissue when the linear saw passes through the ribs; after the linear saw passes through the ribs, the linear saw can be straightened, so that the cutting edges on the linear saw are uniformly directed toward the ribs, thereby reducing damage to muscle tissue. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1 It is a structural schematic diagram of embodiment 1;

[0020] Figure 2 It is a structural schematic diagram of the second embodiment;

[0021] Figure 3 This is a schematic diagram of the structure of Embodiment 3;

[0022] Figure 4 It is a structural diagram of embodiment 4.

[0023] In the figure: 1. threading needle; 2. linear saw; 21. cutting section; 22. holding section; 3. hose; 31. fixing section; 32. detachment section; 33. opening; 34. cutting groove; 4. docking ring; 5. pull ring; 6. detachment sheet; 61. blade groove. DETAILED DESCRIPTION

[0024] The following will disclose multiple embodiments of the present invention with drawings. For the purpose of clear description, many physical details will be described together in the following description. However, it should be understood that these physical details should not be used to limit the present invention. In other words, in some embodiments of the present invention, these physical details are not necessary. In addition, in order to simplify the drawings, some conventional structures and components will be depicted in a simple schematic manner in the drawings.

[0025] In addition, in the present utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present utility model. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0026] Embodiment 1:

[0027] See also Figure 1 The minimally invasive rib cutting device of the utility model comprises:

[0028] A cutting mechanism, the cutting mechanism is a linear saw 2;

[0029] The threading needle 1 is arc-shaped and has a cutting edge. The end of the threading needle 1 without the cutting edge is mounted on the end of the linear saw 2 to pull the linear saw 2 through the ribs;

[0030] The linear saw 2 includes a hose 3 sleeved on the linear saw 2;

[0031] The linear saw 2 is pulled through the ribs by the arc-shaped introduction needle 1, and then the ribs are cut by the linear saw 2, thereby achieving the effect of minimally invasive cutting. The hose 3 sleeved on the linear saw 2 can prevent the linear saw 2 from causing damage to body tissue when the linear saw 2 passes through the ribs; after the linear saw 2 passes through the ribs, the linear saw 2 can be straightened so that the cutting edges on the linear saw 2 are all facing the ribs, thereby reducing damage to muscle tissue.

[0032] Furthermore, the linear saw 2 includes a cutting section 21 with a saw blade or saw teeth, the cutting section 21 is located in the center of the linear saw 2, and both ends of the linear saw 2 are gripping sections 22 without saw blades or saw teeth.

[0033] The provision of the gripping section 22 facilitates the manipulation of the linear saw 2 to cut the ribs.

[0034] The end of the hose 3 is detachably connected to the grip section 22 of the linear saw 2. The detachable connection between the hose 3 and the grip section 22 of the linear saw 2 allows the hose 3 to be easily removed after the linear saw 2 passes through the ribs. After the hose 3 is removed, the linear saw 2 can be used to cut the ribs.

[0035] Furthermore, a hard docking ring 4 is provided on the gripping section 22, and the hose 3 is tightly sleeved on the surface of the docking ring 4; both ends of the docking ring 4 are arranged in a truncated cone shape;

[0036] Embodiment 2:

[0037] See also Figure 2 As a variation of the first embodiment, the difference from the first embodiment is that the hose 3 includes a fixed section 31 and a detachable section 32, and the adjacent ends of the fixed section 31 and the detachable section 32 are connected by the cutting section 21, and the fixed section 31 is fixedly connected to the holding section 22 at one end of the linear saw 2 provided with the threading needle 1.

[0038] The cutting section 21 is arranged in the direction of the cutting edge of the piercing needle 1 after rotation.

[0039] In this embodiment, the difference from the use of the first embodiment is that after the hose 3 follows the linear saw 2 through the ribs, the detachment section 32 and the cutting section 21 in the fixed section 31 are broken, that is, the detachment section 32 on the cutting section 21 in the sleeved linear saw 2 can be separated from the fixed section 31, so that the hose 3 can be easily released from blocking the linear saw 2;

[0040] The cutting section 21 can be broken by the cutting edge of the threading needle 1 .

[0041] Embodiment three:

[0042] See also Figure 3 As a further improvement of the first and second embodiments, a pull ring 5 is provided at the tail end of the linear saw 2; wherein the setting of the pull ring 5 facilitates the operation of the linear saw 2. When the pull ring 5 is provided, since the pull ring 5 is larger than the inner diameter of the hose 3, it is inconvenient to remove the shielding of the hose 3 on the cutting section 21 in the linear saw 2; therefore, an opening 33 is provided at one end of the hose 3 close to the pull ring 5, and by pulling the hose 3 and the linear saw 2 apart, the linear saw 2 can reversely cut the hose 3 along the opening 33, thereby facilitating the separation of the hose 3 from the linear saw 2.

[0043] Embodiment 4:

[0044] See also Figure 3 As a further improvement of the third embodiment, an auxiliary cutting groove 34 is provided on the inner wall of the hose 3 along the direction of the linear saw 2 and coincides with the opening 33 .

[0045] A separation piece 6 is provided on the gripping section 22 close to the pull ring 5 , and a blade groove 61 is provided on the separation piece 6 facing the opening 33 of the hose 3 .

[0046] By pulling the hose 3 and the linear saw 2 apart, the linear saw 2 can cut the hose 3 along the blade groove 61 on the release plate 6, so that the hose 3 can be unfolded along the opening 33 and the cutting groove 34, thereby facilitating the removal of the hose 3 from blocking the linear saw 2.

[0047] The above is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A minimally invasive rib cutting device, characterized in that: include: A cutting mechanism, wherein the cutting mechanism is a linear saw (2); A threading needle (1), wherein the threading needle (1) is arranged in an arc shape and is provided with a cutting edge, and the end of the threading needle (1) not provided with a cutting edge is mounted on the end of the linear saw (2) for pulling the linear saw (2) through the ribs; The linear saw (2) comprises a hose (3) which is sleeved on the linear saw (2).

2. A minimally invasive rib cutting device according to claim 1, characterized in that: The linear saw (2) comprises a cutting section (21) provided with a saw blade or saw teeth, the cutting section (21) being located in the center of the linear saw (2), and both ends of the linear saw (2) being a gripping section (22) not provided with a saw blade or saw teeth.

3. A minimally invasive rib cutting device according to claim 2, characterized in that: The end of the hose (3) is detachably connected to the gripping section (22) of the linear saw (2).

4. The minimally invasive rib cutting device according to claim 3, characterized in that: The gripping section (22) is provided with a hard docking ring (4), and the hose (3) is tightly sleeved on the surface of the docking ring (4); Both ends of the docking ring (4) are arranged in a truncated cone shape.

5. The minimally invasive rib cutting device according to claim 2, characterized in that: The hose (3) comprises a fixed section (31) and a detachable section (32), wherein adjacent ends of the fixed section (31) and the detachable section (32) are connected via a cutting section (21), and the fixed section (31) is fixedly connected to a holding section (22) at one end of the linear saw (2) provided with a threading needle (1).

6. The minimally invasive rib cutting device according to claim 5, characterized in that: The cutting section (21) is arranged in the direction of the cutting edge of the piercing needle (1) after the piercing needle (1) is rotated.

7. A minimally invasive rib cutting device according to claim 4 or 6, characterized in that: The tail end of the linear saw (2) is provided with a pull ring (5); An opening (33) is provided at one end of the hose (3) close to the pull ring (5). By pulling the hose (3) and the linear saw (2) apart, the linear saw (2) can cut the hose (3) in the opposite direction along the opening (33), thereby facilitating the separation of the hose (3) from the linear saw (2).

8. The minimally invasive rib cutting device according to claim 7, characterized in that: An auxiliary cutting groove (34) overlapping with the opening (33) is provided on the inner wall of the hose (3) along the direction of the linear saw (2).

9. The minimally invasive rib cutting device according to claim 8, characterized in that: A detachment sheet (6) is provided on the gripping section (22) close to the pull ring (5), and a blade groove (61) is provided on the detachment sheet (6) facing the opening (33) of the hose (3).

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