CN114903545A - An adjustable tracheoesophageal fistula occlusion device - Google Patents

Abstract

The invention discloses an adjustable tracheoesophageal fistula blocking device which comprises a supporting mechanism used for supporting a trachea, an adjusting mechanism used for adjusting the state of the supporting mechanism and a blocking mechanism used for blocking a fistula tract, wherein the adjusting mechanism is installed in the supporting mechanism, and the blocking mechanism is installed outside the supporting mechanism. The fistulous tract auxiliary treatment device has the advantages that the supporting mechanism and the adjusting mechanism are matched, so that the device can be quickly propped open in the trachea to quickly plug the fistulous tract, discomfort of a patient is relieved, the moderate effect of strength and elasticity is guaranteed by using stainless steel, the supporting effect is guaranteed, meanwhile, the air flux can be greatly guaranteed, the smoothness of the trachea of the patient is guaranteed, and the supporting mechanism and the plugging mechanism are matched, so that after the supporting mechanism is propped open, the fistulous tract auxiliary treatment is carried out by using the plugging effect of the plugging mechanism and the internal liquid medicine, and the treatment effect is improved.

Description

An adjustable tracheoesophageal fistula occlusion device

technical field

The invention relates to the field of tracheoesophageal fistula occlusion treatment, in particular to an adjustable tracheoesophageal fistula occlusion device.

Background technique

Tracheoesophageal fistula refers to the formation of a communication channel between the trachea and esophagus, which were originally adjacent but independent of each other due to trauma, tumor, compression, etc., so that food and secretions on the esophagus side can enter the trachea through the fistula and produce a series of pathological effects. Tracheoesophageal fistula is a serious disease. If it is not detected in time and handled improperly, septic shock may occur, even life-threatening, and its morbidity is not low. The incidence of tracheoesophageal fistula found in autopsy reports was 0.9% to 13%, and the difference may partly be related to whether tracheoesophageal fistula was actively searched for in autopsy. The median survival time from diagnosis of tracheoesophageal fistula is 1 to 6 weeks, and postoperative mortality remains as high as 40%. And patients often cannot tolerate surgery due to poor general condition. Without treatment, most patients die of fistula progression within a month. Tracheoesophageal fistulas caused by malignant tumors account for about 50%. About 12% of patients with esophageal cancer eventually develop a tracheoesophageal fistula. The incidence of tracheoesophageal fistula was 0.16% in lung cancer patients and 14.75% in tracheal cancer patients. Tracheoesophageal fistulas usually include fistulas between the trachea, bronchi and esophagus. Tracheoesophageal fistulas account for about 52-57%, bronchoesophageal fistulas account for about 37-40%, and pulmonary parenchyma-esophageal fistulas account for about 3-11%. Tracheoesophageal fistula occurs in 0.3-3% of patients undergoing long-term tracheal intubation or tracheotomy and mechanical ventilation, accounting for 75% of acquired non-malignant tracheoesophageal fistulas. In recent years, the incidence of tracheoesophageal fistula has gradually increased due to reasons such as surgery, tumor, tracheal intubation or traffic accident trauma.

The existing tracheoesophageal fistula occlusion device often occupies most of the area of the trachea due to the requirements of structure and strength, causing discomfort to the patient and inconvenient adjustment.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an adjustable tracheoesophageal fistula occlusion device in order to solve the above problems.

The present invention realizes above-mentioned purpose through following technical scheme:

An adjustable tracheoesophageal fistula blocking device, comprising a support mechanism for supporting the trachea, an adjustment mechanism for adjusting the state of the support mechanism, and a blocking mechanism for blocking a fistula tract, and the support mechanism is internally installed The adjusting mechanism is provided, and the blocking mechanism is installed outside the support mechanism;

The support mechanism includes a fixed rod, a spread rod, a connecting rod, and an inner buffer cavity, the fixed rod and the spread rod are one set, and five sets of the fixed rod and the a ring formed by a spreader rod, the inner buffer cavity is arranged inside the connecting rod, and a connection port is arranged between the inner buffer cavity and the blocking mechanism;

The adjustment mechanism includes an adjustment rod, a center plate, a matching ball, and a two-way screw. The adjustment rod is connected to the inner side of the fixed rod. Three adjustment rods form a group. Both sides of the support mechanism are provided with a group of the an adjustment rod, the inner side of the adjustment rod is connected with the center disk, the center disk passes through the two-way screw, one end of the two-way screw is provided with the matching ball, and the matching ball is provided with a matching groove;

The blocking mechanism includes a blocking pad, an opening and a fixing buckle, the fixing buckle is arranged between the inner side of the blocking pad and the connecting port, and the central position of the outer side of the blocking pad is provided with the fixing buckle. Open your mouth.

Preferably, the fixing rod, the spreading rod and the connecting rod are integrally formed.

With this arrangement, the rigidity and ductility of the medical stainless steel can be used to ensure the overall support effect of the support mechanism in the trachea and the partial elasticity effect.

Preferably, the inner buffer cavity and the connection port are integrally formed with the connection rod.

In this way, the inner buffer cavity is used to improve the elasticity of the connecting rod and the elasticity of the connecting rod cooperating with the fixing rod.

Preferably, the adjusting rod is integrally formed with the fixing rod, and the central disk is integrally formed with the adjusting rod.

In this way, the adjusting rod is used to support the support mechanism to stretch.

Preferably, the two-way screw is connected to the central disk by a thread, the matching ball is connected to the two-way screw by welding, and the matching groove is integrally formed with the matching ball.

In this way, the two-way screw is used to cooperate with the central disk, so that the adjusting rod has a supporting force, and the supporting mechanism is stretched and contracted.

Preferably, the opening is integrally formed in the blocking pad, a medicine storage cavity is located inside the blocking pad, and the opening is located at the weak point of the medicine storage cavity.

In this way, when the support mechanism is stretched, the weak part of the blocking pad tears the medicine storage cavity of the blocking pad to form the opening, so that the medicinal liquid flows out and assists the fistula tract. treat.

Preferably, the fixing buckle is integrally formed on the blocking pad, and the fixing buckle is snap-connected to the connecting rod.

In this way, the fixing buckle is used for pulling and pulling the occluding pad, thereby ensuring the expansion and tearing of the occluding pad, and ensuring the occlusion of the fistula tract.

Compared with the prior art, the beneficial effects of the present invention are as follows:

1. With the cooperation of the support mechanism and the adjustment mechanism, the device can be quickly opened in the trachea, the fistula tract can be quickly blocked, the discomfort of the patient can be alleviated, and the stainless steel material is used to ensure the moderate effect of strength and elasticity, and to ensure the support effect, At the same time, it can greatly ensure the air flux and ensure the patency of the patient's trachea;

2. Using the cooperation of the support mechanism and the blocking mechanism, after the support mechanism is opened, the blocking effect of the blocking mechanism and the internal medicinal liquid are used to perform auxiliary treatment on the fistula tract to improve the therapeutic effect.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

1 is a schematic structural diagram of the first state of contraction of an adjustable tracheoesophageal fistula occlusion device according to the present invention;

2 is a schematic structural diagram of the second state of contraction of an adjustable tracheoesophageal fistula occlusion device according to the present invention;

Fig. 3 is the contracted front view of a kind of adjustable tracheoesophageal fistula occlusion device according to the present invention;

Fig. 4 is the structural schematic diagram of the first state of opening of an adjustable tracheoesophageal fistula occlusion device according to the present invention;

Fig. 5 is the structural schematic diagram of the second state of opening of an adjustable tracheoesophageal fistula occlusion device according to the present invention;

Fig. 6 is the open front view of a kind of adjustable tracheoesophageal fistula occlusion device according to the present invention;

7 is a schematic structural diagram of an adjustment mechanism of an adjustable tracheoesophageal fistula occlusion device according to the present invention;

8 is a schematic diagram of the matching ball structure of an adjustable tracheoesophageal fistula occlusion device according to the present invention;

9 is a cross-sectional view of a connecting rod of an adjustable tracheoesophageal fistula occlusion device according to the present invention.

The reference numerals are explained as follows:

1. Supporting mechanism; 2. Adjusting mechanism; 3. Blocking mechanism; 11. Fixing rod; 12. Spreading rod; 13. Connecting rod; 14. Inner buffer cavity; 15. Connecting port; 21. Adjusting rod; 22. Center plate; 23, matching ball; 24, two-way screw; 25, matching groove; 31, sealing pad; 32, opening; 33, fixing buckle.

Detailed ways

In the description of the present invention, it should be understood that the terms "center", "portrait", "horizontal", "top", "bottom", "front", "rear", "left", "right", " The orientation or positional relationship indicated by vertical, horizontal, top, bottom, inner, outer, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and The description is simplified rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first", "second", etc., may expressly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

In the description of the present invention, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

The present invention will be further described below in conjunction with the accompanying drawings:

Example 1

As shown in Figures 1-9, an adjustable tracheoesophageal fistula occlusion device includes a support mechanism 1 for supporting the trachea, an adjustment mechanism 2 for adjusting the state of the support mechanism 1, and a device for blocking the fistula. A blocking mechanism 3, an adjusting mechanism 2 is installed inside the support mechanism 1, and a blocking mechanism 3 is installed outside the support mechanism 1;

The support mechanism 1 includes a fixed rod 11 , a spread rod 12 , a connecting rod 13 , and an inner buffer cavity 14 . The fixed rod 11 and the spread rod 12 are one set, and five sets of the fixed rod 11 and the spread rod are connected through the connecting rod 13 . 12, an inner buffer cavity 14 is arranged inside the connecting rod 13, and a connection port 15 is arranged between the inner buffer cavity 14 and the blocking mechanism 3;

The adjustment mechanism 2 includes an adjustment rod 21, a center disk 22, a matching ball 23, and a two-way screw 24. The adjustment rod 21 is connected to the inner side of the fixed rod 11, and the three adjustment rods 21 form a group. Both sides of the support mechanism 1 are provided with a group of adjustment rods 21. , the inner side of the adjustment rod 21 is connected with a center disc 22, a bidirectional screw 24 is passed through the center disc 22, one end of the bidirectional screw 24 is provided with a matching ball 23, and the matching ball 23 is provided with a matching groove 25;

The blocking mechanism 3 includes a blocking pad 31 , an opening 32 and a fixing buckle 33 . A fixing buckle 33 is provided between the inner side of the blocking pad 31 and the connecting port 15 , and an opening 32 is provided at the center of the outer side of the blocking pad 31 .

Preferably: the fixing rod 11, the spreading rod 12 and the connecting rod 13 are integrally formed, and the rigidity and ductility of the medical stainless steel can be used to ensure the overall supporting effect of the support mechanism 1 in the trachea and the partial elastic effect; the inner buffer cavity 14, The connecting port 15 is integrally formed on the connecting rod 13, and the inner buffer cavity 14 is used to improve the elasticity of the connecting rod 13 and the elasticity of the connecting rod 13 in cooperation with the fixing rod 11; the adjusting rod 21 is integrally formed with the fixing rod 11, and the center plate 22 is integrally formed on the The adjusting rod 21 is used to support the supporting mechanism 1 for opening; the two-way screw 24 is connected to the center plate 22 by thread, the matching ball 23 is connected to the two-way screw 24 by welding, and the matching groove 25 is integrally formed in the matching ball 23, using the two-way screw 24 cooperates with the center plate 22 so that the adjustment rod 21 has a supporting force, and the supporting mechanism 1 is stretched and contracted; the opening 32 is integrally formed in the blocking pad 31, and there is a medicine storage cavity inside the blocking pad 31, and the opening 32 is located in the medicine storage chamber. In the weak part of the cavity, when the support mechanism 1 is stretched, the weak part of the blocking pad 31 tears the medicine storage cavity of the blocking pad 31 to form an opening 32, so that the medicinal liquid flows out, and the fistula can be treated as an auxiliary; The buckle 33 is integrally formed on the blocking pad 31, and the fixed buckle 33 is snap-connected to the connecting rod 13. The fixed buckle 33 is used for pulling and pulling the blocking pad 31, thereby ensuring the expansion and tearing of the blocking pad 31, and ensuring the protection of the fistula tract. Blocking.

Working principle: According to the state of the patient's fistula, the appropriate blocking pad 31 and the internal medicinal solution are selected, fixed on the inner buffer cavity 14 outside the connecting rod 13, and the device is extended into the patient's trachea, and the inner side is supplemented by an arc. After the air bag is inserted into the device and reaches the vicinity of the fistula tract, the blocking pad 31 is aligned with the position of the fistula tract, and the external probe is used to align the matching groove 25 to inflate the internal air bag and rotate the bidirectional screw 24 synchronously, thereby supporting the support. The mechanism 1 is stretched, and the blocking pad 31 is simultaneously stretched by the supporting mechanism 1 as a whole. After the fixing rod 11 is stretched to an appropriate width, the blocking pad 31 is close to the fistula tract, and the weak parts of the blocking pad 31 are open in all directions. 32. When the medicinal liquid leaks, apply medicine to the fistula tract and remove the airbag to ensure the patient's breathing. The overall width of the support mechanism 1 can be adjusted by adjusting the bidirectional screw 24 later, or the device can be easily taken out when subsequent treatment is required.

The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments, and the descriptions in the above-mentioned embodiments and the description are only to illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have Various changes and modifications fall within the scope of the claimed invention.

Claims (7)

1. An adjustable tracheoesophageal fistula occlusion device is characterized in that: comprising a support mechanism (1) for supporting the trachea and an adjustment mechanism (2) for adjusting the state of the support mechanism (1) and for A blocking mechanism (3) for blocking a fistula tract, the adjusting mechanism (2) is installed inside the support mechanism (1), and the blocking mechanism (3) is installed outside the support mechanism (1); The support mechanism (1) comprises a fixing rod (11), a spreading rod (12), a connecting rod (13), an inner buffer cavity (14), the fixing rod (11), the spreading rod (12) is a set, and five sets of rings formed by the fixing rod (11) and the spreading rod (12) are connected through the connecting rod (13), and the connecting rod (13) is provided with the inner ring a buffer cavity (14), a connection port (15) is provided between the inner buffer cavity (14) and the blocking mechanism (3); The adjusting mechanism (2) comprises an adjusting rod (21), a center plate (22), a matching ball (23), and a bidirectional screw (24), and the adjusting rod (21) is connected to the inner side of the fixing rod (11), Three adjusting rods (21) form a set, a set of adjusting rods (21) are provided on both sides of the support mechanism (1), and the center plate (22) is connected to the inner side of the adjusting rod (21). The center plate (22) is provided with the bidirectional screw (24), one end of the bidirectional screw (24) is provided with the matching ball (23), and the matching ball (23) is provided with a matching groove (25); The blocking mechanism (3) includes a blocking pad (31), an opening (32), and a fixing buckle (33), and the blocking pad (31) is provided on the inner side and between the connecting port (15) with a In the fixing buckle (33), the opening (32) is provided at the center position of the outer side surface of the blocking pad (31). 2 . The adjustable tracheoesophageal fistula occlusion device according to claim 1 , wherein the fixing rod ( 11 ), the spreading rod ( 12 ) and the connecting rod ( 13 ) are integrally formed. 3 . 3 . The adjustable tracheoesophageal fistula occlusion device according to claim 1 , wherein the inner buffer cavity ( 14 ) and the connecting port ( 15 ) are integrally formed on the connecting rod ( 13 ). 4 . 4. An adjustable tracheoesophageal fistula occlusion device according to claim 1, characterized in that: the adjusting rod (21) is integrally formed with the fixing rod (11), and the center plate (22) is integrally formed on the adjusting rod (21). 5. An adjustable tracheoesophageal fistula occlusion device according to claim 1, characterized in that: the bidirectional screw (24) is connected to the central disk (22) by screwing, and the mating ball (23) is welded by welding The two-way screw (24) is connected, and the matching groove (25) is integrally formed with the matching ball (23). 6. The adjustable tracheoesophageal fistula occlusion device according to claim 1, wherein the opening (32) is integrally formed on the sealing pad (31), and the sealing pad (31) There is a medicine storage cavity inside, and the opening (32) is located at the weak point of the medicine storage cavity. 7. An adjustable tracheoesophageal fistula occlusion device according to claim 1, characterized in that: the fixing buckle (33) is integrally formed on the blocking pad (31), and the fixing buckle (33) snaps connected to the connecting rod (13).

Images