Visual extraperitoneal cavity dilator with self-destruction injection valve

Abstract

The utility model discloses a visual extraperitoneal cavity dilator with a self-destruction injection valve, and relates to the technical field of extraperitoneal cavity dilators. According to the technical scheme, the self-destruction injection catheter comprises a catheter made of silica gel, a balloon is arranged at the end of the catheter, and the self-destruction injection catheter is characterized in that the side wall of the catheter is connected with an air inlet pipe communicated with the interior of the catheter, the air inlet pipe is connected with an injection self-destruction valve, the injection self-destruction valve comprises a shell, a through groove penetrating through the two ends of the shell is formed in the shell, and the through groove is communicated with the balloon. One end of the through groove is communicated with the air inlet pipe, the other end of the through groove is provided with a one-way injection assembly, a connecting groove which is communicated with the through groove and penetrates through the top of the through groove is formed in the shell, the surface of the shell is provided with a hand-destroying film which has a sealing effect on the top of the connecting groove, and the self-destroying device further comprises a self-destroying assembly used for puncturing the hand-destroying film. The utility model aims to provide a visual extraperitoneal cavity dilator with a self-destruction injection valve.

Description

Technical Field

[0001] The utility model relates to the technical field of extraperitoneal cavity dilators, and more specifically, to a visual extraperitoneal cavity dilator with a self-destructive injection valve. Background Art

[0002] Extraperitoneal laparoscopic surgery requires the establishment of an artificial operating cavity in the extraperitoneal cavity to perform various surgical operations. At present, the commonly used method in China is to bluntly expand the extraperitoneal cavity with fingers to establish the operating cavity. Some hospitals also use catheters to expand the extraperitoneal cavity.

[0003] The Chinese patent with the patent number CN200520116361.9 discloses a visual extraperitoneal cavity dilator, comprising a silicone catheter (2) and a hard core rod (1). A balloon (3) is provided at the front end of the catheter. The core rod can be inserted into the catheter from the rear end of the catheter, and the front end of the core rod can extend into the balloon. The inner diameter of the catheter (2) is slightly larger than the outer diameter of the laparoscope, and the outer diameter of the core rod is the same as the outer diameter of the laparoscope. The inner wall of the rear part of the catheter has several sealing rings (4) protruding inwardly, and the wall in front of the sealing ring on the catheter has an air inlet pipe (5), and an air inlet valve (6) is provided at the end of the air inlet pipe, and an injection syringe connection port (7) is provided at the inlet of the air inlet valve.

[0004] The above technical solution inserts the front end of the visual extraperitoneal cavity dilator into the extraperitoneal cavity through the patient's incision, injects air into the balloon, and the balloon expands to create an artificial laparoscopic operation cavity. To ensure medical safety, the device can only be used once, but there is a risk of subsequent multiple uses of the device.

[0005] Therefore, a new technical solution is urgently needed to solve the above technical problems. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model aims to provide a visual extraperitoneal cavity dilator with a self-destructive injection valve.

[0007] The above technical purpose of the utility model is achieved through the following technical solutions: a visual extraperitoneal cavity dilator with a self-destructive injection valve, comprising a silicone catheter with a balloon at the end thereof, the side wall of the catheter being connected to an air inlet pipe connected to the inside of the catheter, the air inlet pipe being connected to an injection self-destructive valve, the injection self-destructive valve comprising a shell, a through groove running through both ends of the shell being provided inside the shell, one end of the through groove being connected to the air inlet pipe, and a one-way injection component being provided at the other end, a connecting groove connected to the through groove and running through the top of the shell being provided inside the shell, a hand-destructive membrane being provided on the surface of the shell for sealing the top of the connecting groove, and a self-destructive component for piercing the hand-destructive membrane being also provided.

[0008] By adopting the above technical solution, when in use, the balloon at the end of the catheter is placed into the extraperitoneal cavity through the incision of the patient, and air is injected into the balloon through the one-way injection component at the end of the injection self-destruct valve, so that the balloon expands and an artificial laparoscopic operation cavity is generated. After the device is used once, the self-destructive component pierces the hand-destructive membrane, so that the through groove is connected to the external environment through the connecting groove, and then it cannot be used again, thereby ensuring medical safety.

[0009] The utility model is further configured as follows: the self-destruct component includes a sealing shell covered on the surface of the shell, a closed space is formed between the sealing shell and the shell, a connecting ring connected to the inside of the sealing shell is arranged on the sealing shell directly above the connecting groove, a self-destruct button is slidably connected in the connecting ring along the vertical direction, a ejector pin is arranged at the bottom of the self-destruct button, a spring is arranged between the self-destruct button and the surface of the shell, and an exhaust port connected to the inside of the sealing shell is also opened at the top of the sealing shell.

[0010] The utility model is further configured as follows: a limiting ring is arranged along the circumferential side wall of the bottom of the self-destruct button, and a limiting groove for the limiting ring to be embedded in the top inner wall of the sealing shell is opened.

[0011] The utility model is further configured as follows: a groove is provided on the top surface of the shell along the peripheral side of the connecting groove, and the hand-destructible film is placed in the groove.

[0012] The utility model is further configured as follows: the self-destruct button is provided with an annular groove penetrating the bottom end thereof, the spring is arranged in the annular groove, and the bottom end of the annular groove abuts against the surface of the hand-destruct membrane located on the groove.

[0013] The utility model is further configured as follows: a button protective cap is sleeved on the connecting ring and threadedly connected thereto.

[0014] The utility model has the following beneficial effects: when in use, the balloon at the end of the catheter is placed into the extraperitoneal cavity through the incision of the patient, and air is injected into the balloon through the one-way injection component at the end of the injection self-destruct valve, so that the balloon expands and an artificial laparoscopic operation cavity is generated. After the device is used once, the hand-destructive membrane is pierced through the self-destructive component, so that the through groove is connected to the external environment through the connecting groove, and then it cannot be used again, thereby ensuring medical safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the three-dimensional structure of this embodiment;

[0016] Figure 2 This is a schematic cross-sectional structure diagram of the injection self-destruct valve of this embodiment;

[0017] Figure 3 for Figure 2 A partial enlarged schematic diagram of part A in the middle.

[0018] Description of the drawings: 1. catheter; 2. balloon; 3. air inlet pipe; 4. injection self-destruct valve; 5. shell; 6. through groove; 7. connecting groove; 8. hand-destruct membrane; 9. sealing shell; 10. connecting ring; 11. self-destruct button; 12. ejector pin; 13. spring; 14. exhaust port; 15. limit ring; 16. limit groove; 17. groove; 18. annular groove; 19. button protective cap. DETAILED DESCRIPTION

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0020] The same parts are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "bottom" and "top", "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0021] As shown in the figure, a visual extraperitoneal cavity dilator with a self-destructive injection valve includes a silicone catheter 1, a balloon 2 is provided at the end of which, the side wall of the catheter 1 is connected to an air inlet pipe 3 connected to the inside of the catheter 1, and an injection self-destructive valve 4 is connected to the air inlet pipe 3. The injection self-destructive valve 4 includes a shell 5, and the shell 5 is provided with a through groove 6 running through both ends thereof, one end of the through groove 6 is connected to the air inlet pipe 3, and the other end thereof is provided with a one-way injection component (which is a prior art and will not be repeated in this embodiment), a connecting groove 7 connected to the through groove 6 and running through the top thereof is provided in the shell 5, a hand-destructive membrane 8 is provided on the surface of the shell 5 for sealing the top of the connecting groove 7, and also includes a self-destructive component for piercing the hand-destructive membrane 8.

[0022] When in use, the balloon 2 at the end of the catheter 1 is placed into the extraperitoneal cavity through the incision of the patient, and air is injected into the balloon 2 through the one-way injection component at the end of the injection self-destruct valve 4, so that the balloon 2 expands to produce an artificial laparoscopic operation cavity. After the device is used once, the self-destruct membrane 8 is pierced through the self-destruct component, so that the through groove 6 is connected to the external environment through the connecting groove 7, and then it cannot be used again, thereby ensuring medical safety.

[0023] The self-destruct assembly includes a sealing shell 9 covered on the surface of the shell 5, a closed space is formed between the sealing shell 9 and the shell 5, a connecting ring 10 connected to the inside of the sealing shell 9 is arranged just above the connecting groove 7, a self-destruct button 11 is slidably connected in the connecting ring 10 along the vertical direction, a ejector pin 12 is arranged at the bottom of the self-destruct button 11, a spring 13 is arranged between the self-destruct button 11 and the surface of the shell 5, and an exhaust port 14 connected to the inside of the sealing shell is also opened at the top of the sealing shell.

[0024] By pressing the self-destruct button 11, the spring 13 is compressed, and the ejector pin 12 moves downward and penetrates the manual destruction membrane 8. If the device is to be used again, when air is injected from the one-way injection component end, the air will enter the connecting groove 7 through the through groove 6, and the connecting groove 7 will enter the cavity formed by the sealing shell and the shell 5, and finally be discharged from the exhaust port 14, so that the balloon 2 cannot be inflated and continued to be used.

[0025] A limit ring 15 is provided along the circumferential side wall at the bottom of the self-destruct button 11, and a limit groove 16 for the limit ring 15 to be embedded is provided on the top inner wall of the sealing shell. The spring 13 is in a compressed state, so the upper surface of the limit ring 15 is pressed against the top of the limit ring 15, thereby preventing external factors such as vibration from causing the ejector pin 12 to break the hand-destructive membrane 8 and affecting the normal use of the device.

[0026] The top surface of the housing 5 is provided with a groove 17 along the circumference of the connecting groove 7, the hand-destroying membrane 8 is placed in the groove 17, the self-destructing button 11 is provided with an annular groove 18 penetrating the bottom end thereof, the spring 13 is placed in the annular groove 18, the bottom end of the annular groove 18 abuts against the surface of the hand-destroying membrane 8 located on the groove 17, and the bottom end of the spring 13 abuts against the surface of the hand-destroying membrane 8. This ensures the stability of the hand-destroying membrane 8 after installation and reduces the probability of damage due to external factors.

[0027] A button protection cap 19 is sleeved and threadedly connected on the connecting ring 10 to protect the button from being damaged by hand and reduce the possibility of operating errors.

[0028] The specific embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make modifications to the embodiments without any creative contribution as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A visual extraperitoneal cavity dilator with a self-destructive injection valve, comprising a silicone catheter (1), the end of which is provided with a balloon (2), characterized in that: The side wall of the conduit (1) is connected to an air intake pipe (3) connected to the inside of the conduit (1), and an injection self-destruct valve (4) is connected to the air intake pipe (3). The injection self-destruct valve (4) includes a shell (5), and a through groove (6) is provided inside the shell (5) and passes through both ends thereof. One end of the through groove (6) is connected to the air intake pipe (3), and a one-way injection component is provided at the other end thereof. A connecting groove (7) is provided inside the shell (5) and is connected to the through groove (6) and passes through the top thereof. A hand-destruct membrane (8) is provided on the surface of the shell (5) and serves to seal the top of the connecting groove (7), and also includes a self-destruct component for piercing the hand-destruct membrane (8).

2. A visual extraperitoneal cavity dilator with a self-destructive injection valve according to claim 1, characterized in that: The self-destruct assembly comprises a sealing shell (9) which is covered on the surface of a shell (5), a closed space being formed between the sealing shell (9) and the shell (5), a connecting ring (10) which is connected to the inside of the sealing shell (9) being arranged just above the connecting groove (7), a self-destruct button (11) being slidably connected in a vertical direction in the connecting ring (10), a ejector pin (12) being arranged at the bottom of the self-destruct button (11), a spring (13) being arranged between the self-destruct button (11) and the surface of the shell (5), and an exhaust port (14) which is connected to the inside of the sealing shell (9) being also arranged at the top.

3. A visual extraperitoneal cavity dilator with a self-destructive injection valve according to claim 2, characterized in that: A limiting ring (15) is provided along the circumferential side wall of the bottom of the self-destruct button (11), and a limiting groove (16) for the limiting ring (15) to be embedded is provided on the top inner wall of the sealing shell (9).

4. A visual extraperitoneal cavity dilator with a self-destructive injection valve according to claim 3, characterized in that: A groove (17) is provided on the top surface of the shell (5) along the circumference of the connecting groove (7), and the hand-destructible film (8) is placed in the groove (17).

5. A visual extraperitoneal cavity dilator with a self-destructive injection valve according to claim 4, characterized in that: The self-destruct button (11) is provided with an annular groove (18) penetrating the bottom end thereof, the spring (13) is arranged in the annular groove, and the bottom end of the annular groove (18) abuts against the surface of the hand-destruct film (8) located on the groove.

6. A visual extraperitoneal cavity dilator with a self-destructive injection valve according to claim 5, characterized in that: A button protective cap (19) is sleeved on and threadedly connected to the connecting ring (10).

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