Cryoablation device for lung tumor

Abstract

The cryoablation device for the lung tumor comprises a fixing ring, a fixing structure capable of being fixed with the skin into a whole is arranged on the surface of the fixing ring, a connecting cylinder is fixedly connected to the center of the upper surface of the fixing ring, a sleeve is connected to the inner wall of the connecting cylinder in a sliding mode, and a suction channel and an insertion hole are formed in the inner wall of the sleeve. And an argon-helium knife is inserted into the inner wall of the insertion hole. According to the cryoablation device for the lung tumor, firstly, an incision is formed in the skin of a patient to expose the focus position of the lung, then the skin of the patient and the fixing ring are fixed into a whole through the fixing structure, then the sleeve is inserted into the connecting cylinder, and then the sleeve is fixed into the connecting cylinder through the limiting structure; compared with the prior art, due to the fact that the argon-helium knife is located in the inserting hole and connected with the inserting hole in a sliding mode, when the lung contracts and expands, the argon-helium knife can move synchronously along with the lung, and the problem that the argon-helium knife is separated from the position of the focus is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical devices, and in particular relates to a cryoablation device for lung tumors. Background Art

[0002] Argon-helium cryoablation technology, referred to as argon-helium knife, is an advanced medical technology for minimally invasive ultra-low temperature cryoablation of tumors.

[0003] When using the argon-helium cryoablation device, the argon-helium cryoablation device is inserted through the patient's skin into the lesion area in the body, and then uses argon and helium to freeze and rewarm the lesion cells, thereby achieving the purpose of killing the lesion cells. However, in actual operation, we found that when the argon-helium cryoablation device is used on patients with lung tumors, after the argon-helium cryoablation device is inserted into the patient's lungs, the lungs will move with the patient's breathing. When the patient coughs violently, the argon-helium cryoablation device is easily separated from the lesion. For this reason, we propose a cryoablation device for lung tumors. Utility Model Content

[0004] The utility model aims to provide a cryoablation device for lung tumors to solve the technical problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the specific technical scheme of the utility model is as follows: a cryoablation device for lung tumors, comprising a fixing ring, the surface of the fixing ring is provided with a fixing structure that can be fixed to the skin as a whole, a connecting tube is fixedly connected to the center position of the upper surface of the fixing ring, a sleeve is slidably connected to the inner wall of the connecting tube, a suction channel and a plug hole are respectively opened on the inner wall of the sleeve, an argon-helium knife is inserted into the inner wall of the plug hole, and a limiting structure that can fix the sleeve is provided on the inner wall of the connecting tube;

[0006] The limiting structure includes a conical spring sleeve, the inner wall of the sleeve is provided with a conical groove matched with the conical spring sleeve, and the surface of the sleeve is threadedly connected with a locking nut, and the upper end of the locking nut is provided with a through hole for the sleeve to pass through.

[0007] Preferably, the fixing structure includes an adhesive component arranged at the lower end of the fixing ring and a binding component arranged on the surface of the fixing ring.

[0008] Preferably, the pasting component includes medical glue pasted on the lower end of the fixing ring, and a tear ring is pasted on the end of the medical glue away from the fixing ring.

[0009] Preferably, the binding assembly comprises a first magic belt and a second magic belt respectively fixedly mounted on the upper end of the fixing ring.

[0010] Preferably, a suction tube is fixedly mounted on the surface of the sleeve, and one end of the suction tube extends to the interior of the suction channel.

[0011] The utility model of a lung tumor cryoablation device has the following advantages:

[0012] 1. A cryoablation device for lung tumors is provided with a sleeve and a limiting structure. First, an incision is made on the patient's skin to expose the lung lesion location, and then a fixing ring is placed at the incision. Then, the patient's skin and the fixing ring are fixed as a whole by using the fixing structure. Then, the sleeve is inserted into the connecting tube and contacts the lung lesion location. Then, the sleeve is fixed in the connecting tube by using the limiting structure, and then an argon-helium knife is inserted into the socket to be inserted into the lesion. Compared with the prior art, since the argon-helium knife is in the socket and is slidably connected to the socket, when the lung contracts and expands, the argon-helium knife will move synchronously with it, thereby avoiding the problem of the argon-helium knife being separated from the lesion location.

[0013] 2. This cryoablation device for lung tumors is provided with a suction tube. When the sleeve is in the patient's lungs, the suction tube is connected to an external suction device. Therefore, the accumulated fluid and blood in the patient's lungs can be sucked out of the body along the suction channel, thereby facilitating the discharge of accumulated fluid and blood. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the front section structure of the limiting structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the three-dimensional structure of the conical spring jacket of the utility model;

[0018] Figure 4 It is a schematic diagram of the front section structure of the sleeve of the utility model.

[0019] Markings in the figure: 1 fixing ring, 2 connecting tube, 3 sleeve, 4 suction channel, 5 socket, 6 argon-helium knife, 7 conical spring jacket, 8 conical groove, 9 locking nut, 10 medical glue layer, 11 tear ring, 12 first magic band, 13 second magic band, 14 suction tube. DETAILED DESCRIPTION

[0020] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0021] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0023] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0024] The disclosure below provides many different embodiments or examples for realizing different structures of the embodiments of the present utility model. In order to simplify the disclosure of the embodiments of the present utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present utility model. In addition, the embodiments of the present utility model can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0025] In order to better understand the purpose, structure and function of the present invention, the present invention is described in further detail below in conjunction with the accompanying drawings.

[0026] like Figure 1-4As shown, a cryoablation device for lung tumors of the utility model comprises a fixing ring 1, the surface of the fixing ring 1 is provided with a fixing structure which can be fixed to the patient's skin as a whole, the fixing structure comprises an adhesive component arranged at the lower end of the fixing ring 1 and a restraining component arranged on the surface of the fixing ring 1, the adhesive component comprises a medical glue layer 10 adhered to the lower end of the fixing ring 1, a tear ring 11 is adhered to the end of the medical glue layer 10 away from the fixing ring 1, and the restraining component comprises a first magic tape 12 and a second magic tape 13 respectively fixedly mounted on the upper end of the fixing ring 1.

[0027] First, an incision is made in the patient's skin to expose the location of the lung lesion, and then the tear ring 11 is torn off to expose the medical glue layer 10. Then, the fixing ring 1 is placed on the incision. At this time, the medical glue layer 10 will contact the patient's skin to preliminarily fix the fixing ring 1. Then, the first magic tape 12 and the second magic tape 13 are wrapped around the patient's body and pasted to each other, so that the fixing ring 1 can be stably fixed.

[0028] A connecting tube 2 is fixedly connected to the center position of the upper surface of the fixing ring 1, and a sleeve 3 is slidably connected to the inner wall of the connecting tube 2. A suction channel 4 and a plug hole 5 are respectively opened on the inner wall of the sleeve 3. When the fixing ring 1 is fixed on the patient's skin, the sleeve 3 is then inserted into the connecting tube 2 and contacts the lung lesion location. At this time, the sleeve 3 will contact the patient's muscle tissue.

[0029] An argon-helium knife 6 is inserted into the inner wall of the insertion hole 5, and a limiting structure for fixing the sleeve 3 is provided on the inner wall of the connecting tube 2. The limiting structure includes a conical spring sleeve 7. A conical groove 8 matched with the conical spring sleeve 7 is provided on the inner wall of the sleeve 3, and a locking nut 9 is threadedly connected to the surface of the sleeve 3. A through hole for the sleeve 3 to pass through is provided at the upper end of the locking nut 9. When the sleeve 3 contacts the location of the lung lesion, the locking nut 9 is then tightened to drive the conical spring sleeve 7 to contact the conical groove 8, forcing the conical spring sleeve 7 to contract, so that the contracted conical spring sleeve 7 can be used to clamp the sleeve 3, and then the limiting structure can be used to fix the sleeve 3 in the connecting tube 2.

[0030] After the limiting structure fixes the sleeve 3 in the connecting tube 2, the argon-helium knife 6 is inserted into the hole 5 and inserted into the lesion. Compared with the prior art, since the argon-helium knife 6 is in the hole 5 and is slidably connected to the hole 5, when the lung contracts and expands, the argon-helium knife 6 will move synchronously with it, thereby avoiding the problem of the argon-helium knife 6 leaving the lesion position.

[0031] A suction tube 14 is fixedly installed on the surface of the sleeve 3, and one end of the suction tube 14 extends to the inside of the suction channel 4. When the sleeve 3 is in the patient's lungs, the suction tube 14 is connected to an external suction device, so that the accumulated fluid and blood in the patient's lungs can be sucked out of the body along the suction channel 4, thereby facilitating the discharge of accumulated fluid and blood.

[0032] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A cryoablation device for lung tumors, comprising a fixing ring (1), characterized in that: The surface of the fixing ring (1) is provided with a fixing structure that can be fixed to the skin as a whole, a connecting tube (2) is fixedly connected to the center position of the upper surface of the fixing ring (1), the inner wall of the connecting tube (2) is slidably connected to the sleeve (3), the inner wall of the sleeve (3) is respectively provided with a suction channel (4) and a plug hole (5), an argon-helium knife (6) is inserted into the inner wall of the plug hole (5), and the inner wall of the connecting tube (2) is provided with a limiting structure that can fix the sleeve (3); The limiting structure comprises a conical spring sleeve (7), the inner wall of the sleeve (3) is provided with a conical groove (8) adapted to the conical spring sleeve (7), and the surface of the sleeve (3) is threadedly connected with a locking nut (9), and the upper end of the locking nut (9) is provided with a through hole for the sleeve (3) to pass through.

2. A cryoablation device for lung tumors according to claim 1, characterized in that: The fixing structure comprises an adhesive component arranged at the lower end of the fixing ring (1) and a binding component arranged on the surface of the fixing ring (1).

3. A cryoablation device for lung tumor according to claim 2, characterized in that: The pasting assembly comprises a medical glue layer (10) pasted on the lower end of the fixing ring (1), and a tear ring (11) is pasted on one end of the medical glue layer (10) away from the fixing ring (1).

4. A cryoablation device for lung tumor according to claim 2, characterized in that: The binding assembly comprises a first magic belt (12) and a second magic belt (13) which are respectively fixedly mounted on the upper end of the fixing ring (1).

5. The cryoablation device for lung tumor according to claim 1, characterized in that: A suction tube (14) is fixedly mounted on the surface of the sleeve (3), and one end of the suction tube (14) extends to the interior of the suction channel (4).

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