Endoscopic stapler automatic volume adjustment disposable guide head

Abstract

The application provides a disposable guide head for automatically adjusting the volume of a laparoscope anastomat, which is composed of a puncture part and a sleeve part connected with each other, the puncture part is used for shuttling or picking human tissues, the sleeve part is used for sleeving a vice clamp, the puncture part is provided with a first air cavity and a second air cavity arranged at intervals from head to tail; the first air cavity is filled with compressed gas; and a valve is installed between the first air cavity and the second air cavity. The compressed gas makes the first air cavity swell, thereby increasing the volume of the puncture part of the guide head. When the space of the human tissues is too large, the puncture part can be attached to the human tissues, so as to avoid collision with the human tissues; when the pressure of the human tissues is too large, the first air cavity is extruded, the internal air pressure is increased, thereby opening the valve, and the gas in the first air cavity enters the second air cavity; at this time, the space containing the gas is increased, the air pressure is reduced, the volume of the puncture part is reduced, thereby facilitating the guide head to pick the part with excessive pressure of the human tissues.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a laparoscope anastomat, and more particularly to a disposable guide head of a laparoscope anastomat capable of automatically adjusting volume. BACKGROUND

[0002] The guide head is sleeved on the auxiliary pincer valve and used for shuttling or picking human tissues.

[0003] The conventional guide head has a fixed shape, and if the space in the human tissues is too large, the guide head cannot be attached to the human tissues, which may cause collision with the human tissues, and if the pressure between the human tissues is too large, it is difficult to pick the human tissues. SUMMARY

[0004] To solve the technical problems in the background, the present application discloses a disposable guide head of a laparoscope anastomat capable of automatically adjusting volume.

[0005] The present application provides a disposable guide head of a laparoscope anastomat capable of automatically adjusting volume, which is composed of a puncture part and a sleeving part connected to each other, the puncture part is used for shuttling or picking human tissues, the sleeving part is used for sleeving the auxiliary pincer valve, and the puncture part is provided with a first gas cavity and a second gas cavity arranged at intervals from the head to the tail.

[0006] The first gas cavity is filled with compressed gas.

[0007] A valve is installed between the first gas cavity and the second gas cavity.

[0008] The compressed gas makes the first gas cavity bulge, thereby increasing the volume of the puncture part of the guide head, when the space of the human tissues is too large, the puncture part can be attached to the human tissues to avoid collision with the human tissues, and when the pressure of the human tissues is too large, the first gas cavity is pressed, the internal gas pressure is increased, thereby opening the valve, and the gas in the first gas cavity enters the second gas cavity, at this time, the space containing the gas is increased, the gas pressure is reduced, the volume of the puncture part is reduced, thereby facilitating the guide head to pick the parts with too large pressure of the human tissues.

[0009] The valve is provided, which may cause the structure of the guide head to be complex and the cost to be high, therefore, the problem is further improved and solved, specifically, a first partition is connected between the first gas cavity and the second gas cavity, and a first notch is arranged on the first partition, thereby constituting the valve, in this way, when the gas pressure in the first gas cavity is increased, the first partition at the position of the first notch is broken, thereby facilitating the communication between the first gas cavity and the second gas cavity.

[0010] The wall thickness of the first air cavity and the second air cavity directly affects the strength distribution of the puncture part and the moving efficiency of the puncture part, and based on this, further design is that the wall thickness of the first air cavity and the second air cavity is uniform and consistent. In this way, the structural strength of the puncture part is uniformly distributed, and the puncture part will not be twisted when moving, so that it is more smooth to shuttle or pick the human body.

[0011] Because there are some people whose body tissue pressure exceeds that of ordinary people, the guide head is still difficult to pick the human tissue under the condition that the first air cavity and the second air cavity are communicated, and based on this, further improvement is that the rear side of the second air cavity is further connected with a third air cavity through a second partition; and the second partition is provided with a second notch. In this way, when the pressure of the human tissue exceeds that of ordinary people, the positions of the first notch and the second notch will be broken in turn, so that the first air cavity, the second air cavity and the third air cavity are communicated, thereby further reducing the air pressure and the volume of the puncture part.

[0012] Because the use range of the third air cavity is small, if the breaking pressures of the second notch and the first notch are consistent, the second notch will be broken by mistake when the first notch is broken, so that the volume of the puncture part is too small and the structural strength is too low, which affects the performance of the guide head, and therefore further improvement solves this problem, specifically, the depth of the second notch is less than the depth of the first notch. In this way, the thickness at the second notch is greater than the thickness at the first notch, and the pressure required for breaking is higher.

[0013] The wall thickness of the first air cavity, the second air cavity and the third air cavity directly affects the strength distribution of the puncture part and the moving efficiency of the puncture part, and based on this, further design is that the wall thickness of the first air cavity, the second air cavity and the third air cavity is uniform and consistent. BRIEF DESCRIPTION OF DRAWINGS

[0014] The application will be further described below in combination with the drawings and embodiments.

[0015] Figure 1 is a front view of the application;

[0016] Figure 2 is Figure 1 is a sectional view of A-A in figure 1;

[0017] Figure 3 is Figure 1 is a sectional view of B-B in figure 1;

[0018] Figure 4 is Figure 1 is an enlarged view of C in figure 1;

[0019] Figure 5 is Figure 1 is an enlarged view of D in figure 1;

[0020] Figure 6This is an initial state diagram of the present invention;

[0021] Figure 7 This is a diagram showing the state of the first septum when it ruptures;

[0022] Figure 8 This is a diagram showing the state of the second septum when it ruptures;

[0023] In the figure: 1. Puncture section; 2. Connecting section; 3. First air chamber; 4. Second air chamber; 5. First septum; 6. Second septum; 7. Third air chamber; 51. First notch; 61. Second notch. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0025] Example 1:

[0026] like Figure 1 As shown, the present invention is a disposable guide head for an endoscopic anastomosis device with automatic volume adjustment. It is arc-shaped and consists of an interconnected puncture section 1 and a connecting section 2. The puncture section 1 is used to shuttle or manipulate human tissue, and the end of the connecting section 2 has a connecting hole, which is used to attach it to the endoscopic anastomosis device via a connecting secondary clamp flap.

[0027] The puncture site 1 has a first air chamber 3 and a second air chamber 4 arranged at intervals from head to tail. The first air chamber 3 and the second air chamber 4 are separated by a first partition 5. Figure 2 and Figure 4 As shown, a circular first notch 51 is provided on the first partition 5. The first air chamber 3 is filled with compressed gas, and the filling method is as follows: when the guide head is injection molded, an air inlet is provided at the position of the first air chamber 3, and the compressed gas is filled into the first air chamber 3 through the air inlet; then the plug is used to block the air inlet, and the plug and the guide head are connected and fixed by melting.

[0028] like Figure 6 As shown, compressed gas causes the first air chamber 3 to bulge, thereby increasing the volume of the guide head puncture section 1. When the space in the human tissue is too large, the puncture section 1 can conform to the human tissue, avoiding collision with the human tissue; when the pressure in the human tissue is too high, the first air chamber 3 is compressed, and the internal air pressure will increase, such as... Figure 7 As shown, the first partition 5 bends towards the second air chamber. Since the first notch 51 is relatively thin, a tear occurs, and the gas in the first air chamber 3 enters the second air chamber 4. At this time, the space for accommodating the gas increases, the air pressure decreases, and the volume of the puncture part 1 decreases, thereby making it easier for the guide head to pry open areas of human tissue with excessive pressure.

[0029] Example 2:

[0030] Compared with Embodiment 1, the difference is that the wall thickness of the first air chamber 3 and the second air chamber 4 is uniformly distributed and consistent. With this configuration, the structural strength of the puncture part 1 is evenly distributed, and it will not twist during movement, making it easier to penetrate or pierce the human body.

[0031] Example 3:

[0032] Compared to Embodiment 1, the difference is as follows: Because some individuals have higher tissue pressure than normal, even with the first air chamber 3 and the second air chamber 4 connected, the guide head still struggles to manipulate the tissue. Therefore, the design incorporates the following: a third air chamber 7 is connected to the rear of the second air chamber 4 via a second partition 6; Figure 2 and Figure 4 As shown, the second septum 6 has a circular second notch 61. Thus, when the pressure on human tissue exceeds that of a normal person, the first notch 51 and the second notch 61 will rupture sequentially, and the shape of the puncture site during the rupture process will follow the pattern described above. Figure 6-8 This connects the first air chamber 3, the second air chamber 4, and the third air chamber 7, thereby further reducing the air pressure and the volume of the puncture section 1. After the first notch 51 and the second notch 61 break, the shape of the puncture section is referenced. Figure 1 .

[0033] Example 4:

[0034] The difference compared to Example 3 is as follows: Figure 3 and Figure 5 As shown, the depth of the second notch 61 is less than the depth of the first notch 51. Thus, the thickness at the second notch 61 is greater than the thickness at the first notch 51, requiring higher pressure to break. This prevents the second notch 61 from being accidentally broken when the first notch 51 breaks, which would result in the puncture part 1 being too small in volume and having too low structural strength, thus affecting the performance of the guide head.

[0035] Example 5:

[0036] Compared with Embodiment 3, the difference is that the wall thickness of the first air chamber 3, the second air chamber 4, and the third air chamber 7 is uniformly distributed and consistent. With this configuration, the structural strength of the puncture part 1 is evenly distributed, and it will not twist during movement, making it easier to penetrate or pierce the human body.

[0037] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. An automatic volume adjustment disposable guide head of a laparoscope anastomat, comprising a puncture part (1) and a sleeve part (2) connected with each other, the puncture part (1) is used for shuttling or picking human body tissues, and the sleeve part (2) is used for sleeving a vice-clam; characterized in that: the puncture part (1) is provided with a first air cavity (3) and a second air cavity (4) arranged at intervals from head to tail; the first air cavity (3) is filled with compressed gas; a valve is arranged between the first air cavity (3) and the second air cavity (4); a first partition (5) is connected between the first air cavity (3) and the second air cavity (4); the first partition (5) is provided with a first notch (51), thereby forming the valve; the wall thickness of the first air cavity (3) and the second air cavity (4) is uniformly distributed and consistent; the rear side of the second air cavity (4) is further connected with a third air cavity (7) through a second partition (6); the second partition (6) is provided with a second notch (61); the depth of the second notch (61) is less than the depth of the first notch (51); and the wall thickness of the first air cavity (3), the second air cavity (4) and the third air cavity (7) is uniformly distributed and consistent. ​ ​ ​ ​ ​ 2. The disposable guide head for an endoscopic stapler automatic volume adjustment of claim 1, wherein: ​ 3. The disposable guide head for an endoscopic stapler automatic volume adjustment of claim 1, wherein: ​ ​ 4. The disposable guide head for an endoscopic stapler automatic volume adjustment of claim 3, wherein: ​ 5. The disposable guide head for an endoscopic stapler automatic volume adjustment of claim 3, wherein: ​

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