Intra-esophageal tension extension instrument with controllable tension and pressure

Abstract

The utility model discloses an esophageal tension extension instrument with controllable tension and pressure, which comprises a probe, the probe is mounted on the outer side of the upper end of a bougie body, a mounting rack is arranged in the top end of the bougie body, and a piezoresistive pressure sensor is fixedly mounted at the inner side end of the mounting rack through a screw; the middle of the lower end of the piezoresistive pressure sensor is connected with a wire located in the bougie body. The mounting ring is fixedly mounted on the outer side of the lower end of the probe, and limiting blocks are fixedly mounted on the outer side of the lower end of the mounting ring at equal angles. The utility model belongs to the technical field of medical instruments, and aims to solve the problems that in the prior art, a pressure detection function is not achieved, and the overall stress condition and stability of a bougie cannot be completely and accurately known conveniently. The esophageal dilator has the advantages that the balloon can dilate the esophagus step by step, the esophageal dilator has a good control function, meanwhile, the internal pressure of the esophagus can be detected and displayed, and a doctor can watch the esophagus conveniently.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, concretely relates to a tension controllable esophageal internal tension lengthening instrument. BACKGROUND

[0002] The esophageal internal tension lengthening bougie is a medical instrument for treating esophageal stenosis, and its main function is to restore the normal patency of the esophagus by mechanically expanding the esophagus.

[0003] However, most of the lengthening bougies do not have pressure detection function when in use, and can only rely on the doctor's sense of touch to roughly perceive the esophageal expansion force, which is inconvenient for complete and accurate understanding of the stress condition and stability of the whole bougie. UTILITY MODEL CONTENT

[0004] Therefore, the utility model provides a tension controllable esophageal internal tension lengthening instrument to solve the above problems in the prior art.

[0005] In order to achieve the above purpose, the utility model provides the following technical scheme:

[0006] According to the first aspect of the utility model, a tension controllable esophageal internal tension lengthening instrument comprises:

[0007] The probe is installed on the outer side of the upper end of the bougie body, and the top end of the bougie body is internally provided with a mounting bracket, the inner side end of the mounting bracket is fixedly installed with a piezoresistive pressure sensor through a screw, and the lower end of the piezoresistive pressure sensor is connected with a wire in the bougie body;

[0008] The mounting ring is fixedly installed on the outer side of the lower end of the probe, and the outer side of the lower end of the mounting ring is fixedly installed with a limiting block at equal angles, and the lower end of the probe is in contact with the upper end of the piezoresistive pressure sensor;

[0009] The balloon is arranged on the outer side of the top of the bougie body, and the lower end of the balloon is internally and communicatively provided with a gas delivery tube in the bougie body.

[0010] Further, the output end of the wire is connected with a display screen assembly outside the bougie body.

[0011] Further, the mounting bracket and the bougie body are connected in a threaded manner, and the outer side of the upper end of the mounting bracket is fixedly installed with a protective cylinder.

[0012] Further, the protective cylinder is located at the inner side end of the mounting ring, and the lower end of the mounting ring is in contact with the upper end of the mounting bracket.

[0013] Further, the mounting ring is connected with the bougie body in a threaded manner, and a first prefabricated groove matched with the limiting block is arranged in the inner wall of the side wall of the bougie body.

[0014] Further, the second prefabricated groove corresponding to the limiting block is arranged at the inner wall of the bougie body.

[0015] Further, the lower end of the gas conveying pipe is connected with the pump head located outside the lower end of the bougie body.

[0016] The utility model has the advantages of the following:

[0017] 1. By the balloon, the pump head can be started to inject gas into the gas conveying pipe and the balloon, so that the tension of the balloon can be controlled, and the esophagus can be expanded gradually.

[0018] 2. By the mounting frame, the mounting frame can be well mounted on the piezoresistive pressure sensor, before use, the protective cylinder and the mounting frame can be rotated, the mounting frame is in threaded connection with the bougie body, so that the piezoresistive pressure sensor can be fixedly mounted in the bougie body, and the piezoresistive pressure sensor can be conveniently dismounted, the piezoresistive pressure sensor can transmit the change of the pressure value on the pressure sensing surface of the probe connection part to the display screen assembly through the wire, and the display screen assembly can display the pressure value, so that doctors can watch conveniently.

[0019] 3. By the mounting ring, the limiting block is aligned with the second prefabricated groove, the mounting ring is inserted into the bougie body, the limiting block slides in the second prefabricated groove, the limiting block enters the first prefabricated groove, and the probe is rotated, so that the mounting ring is in threaded connection with the bougie body, and the probe can be fixedly mounted. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 A front view cross-sectional view of the tension-controllable esophageal tension lengthening instrument is provided for some embodiments of the utility model.

[0021] Fig. 2 A top view cross-sectional view of the tension-controllable esophageal tension lengthening instrument is provided for some embodiments of the utility model.

[0022] Fig. 3 An enlarged view of the position A of the tension-controllable esophageal tension lengthening instrument is provided for some embodiments of the utility model.

[0023] In the drawing: 1, bougie body; 2, probe; 3, mounting frame; 4, piezoresistive pressure sensor; 5, wire; 6, display screen assembly; 7, protective cylinder; 8, mounting ring; 9, limiting block; 10, first prefabricated groove; 11, second prefabricated groove; 12, balloon; 13, gas conveying pipe; 14, pump head. DETAILED DESCRIPTION

[0024] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] Example 1

[0026] like Figs. 1 to 3 As shown, a tension-controlled esophageal tension extension device according to the first aspect of this utility model includes: a probe 2 installed on the upper outer side of the probe body 1, which facilitates the probe body 1 to be driven into the patient's esophagus by the probe 2; a balloon 12 disposed on the top outer side of the probe body 1, and an air supply tube 13 located inside the probe body 1 is connected to the lower end of the balloon 12; the lower end of the air supply tube 13 is connected to a pump head 14 located on the lower outer side of the probe body 1; the two ends of the air supply tube 13 are respectively connected to the air supply tube 13 and the pump head 14; gas can be injected into the air supply tube 13 and the balloon 12 by activating the pump head 14, thereby facilitating the control of the tension of the balloon 12, and thus allowing the balloon 12 to gradually expand the esophagus;

[0027] The probe body 1 has a mounting bracket 3 inside its top end. The inner end of the mounting bracket 3 is fixedly mounted with a piezoresistive pressure sensor 4 by screws. The mounting bracket 3 is connected to the probe body 1 by a thread. A protective cylinder 7 is fixedly mounted on the outer side of the upper end of the mounting bracket 3. The mounting bracket 3 plays a good role in installing the piezoresistive pressure sensor 4. Before use, the protective cylinder 7 and the mounting bracket 3 can be rotated to make the mounting bracket 3 and the probe body 1 threaded together, so as to facilitate the fixed installation of the piezoresistive pressure sensor 4 inside the probe body 1 and facilitate disassembly. The lower middle part of the piezoresistive pressure sensor 4 is connected to a wire 5 located inside the probe body 1. The output end of the wire 5 is connected to the display screen assembly 6 located on the outer side of the probe body 1. The lower end of the probe 2 is in contact with the upper end of the piezoresistive pressure sensor 4. The piezoresistive pressure sensor 4 can transmit the change of pressure value on the pressure sensing surface at the connection with the probe 2 to the display screen assembly 6 through the wire 5. The display screen assembly 6 can display the pressure value, which is convenient for doctors to view and facilitates a complete and accurate understanding of the overall stress and stability of the probe.

[0028] The protective cylinder 7 is located at the inner side end of the mounting ring 8, and the lower end of the mounting ring 8 is in contact with the upper end of the mounting frame 3, so that the overall structure is more compact, and the piezoresistive pressure sensor 4 is not extruded. The mounting ring 8 is fixedly installed outside the lower end of the probe 2, and the lower end outside the mounting ring 8 is fixedly installed with the limit block 9 at equal angles. The inner wall upper end of the probe body 1 is provided with the second prefabricated groove 11 corresponding to the limit block 9 at equal angles. The first prefabricated groove 10 adapted to the limit block 9 is provided in the inner wall of the side wall of the probe body 1. After the piezoresistive pressure sensor 4 is installed, the mounting ring 8 is aligned with the probe body 1. At this time, the limit block 9 is aligned with the second prefabricated groove 11. Then the mounting ring 8 is inserted into the probe body 1, so that the limit block 9 slides with the second prefabricated groove 11, until the limit block 9 enters the first prefabricated groove 10. Then the probe 2 is rotated, so that the mounting ring 8 is threadedly connected with the probe body 1, thereby facilitating the fixed installation of the probe 2, and facilitating the installation of the probe 2 outside the piezoresistive pressure sensor 4. At this time, the limit block 9 plays a good positioning role on the mounting ring 8, which can effectively avoid the loosening and falling off of the probe 2 during use.

Claims

1. A tension-controllable intraluminal tension lengthening device for an esophagus, characterized by comprising: Include: The probe (2) is installed on the upper end of the probe body (1) outside, and the top end of the probe body (1) is provided with a mounting bracket (3) inside, the inner side end of the mounting bracket (3) is fixedly installed with a piezoresistive pressure sensor (4) through a screw, and the lower end of the piezoresistive pressure sensor (4) is connected with a wire (5) located in the probe body (1); The mounting ring (8) is fixedly installed on the lower end of the probe (2) outside, and the lower end of the mounting ring (8) is fixedly installed with a limit block (9) at equal angles, and the lower end of the probe (2) is in contact with the upper end of the piezoresistive pressure sensor (4); The balloon (12) is provided on the top of the probe body (1) outside, and the lower end of the balloon (12) is provided with a gas delivery pipe (13) located in the probe body (1) inside.

2. The tension-controllable intragastric tension lengthening device according to claim 1, wherein The output end of the wire (5) is connected with a display screen assembly (6) located outside the probe body (1).

3. The tension-controllable intragastric tension lengthening device according to claim 1, wherein The mounting bracket (3) is connected with the probe body (1) in a threaded manner, and the upper end of the mounting bracket (3) is fixedly installed with a protective cylinder (7) outside.

4. The tension-controllable intragastric tension lengthening device according to claim 3, wherein The protective cylinder (7) is located at the inner side end of the mounting ring (8), and the lower end of the mounting ring (8) is in contact with the upper end of the mounting bracket (3).

5. The tension-controllable intragastric tension lengthening device according to claim 4, wherein The mounting ring (8) is connected with the probe body (1) in a threaded manner, and the sidewall of the probe body (1) is provided with a first prefabricated groove (10) inside which is matched with the limit block (9).

6. The tension-controllable intragastric tension lengthening device according to claim 5, wherein The inner wall of the probe body (1) is provided with a second prefabricated groove (11) at equal angles on the upper end, which is one-to-one corresponding to the limit block (9).

7. The tension-controllable intragastric tension lengthening device according to claim 1, wherein The lower end of the gas delivery pipe (13) is connected with a pump head (14) located outside the lower end of the probe body (1).

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