Pneumoperitoneum decompression device

Abstract

The utility model is suitable for the technical field of medical equipment, and provides a pneumoperitoneum decompression device. Comprising a base and an injector, and the injector is used for being inserted into a containing cavity in the base; the injector comprises a piston, a piston rod and a barrel body; the piston is arranged in the barrel body in a sliding mode, the piston rod is installed on the piston, a vertical hole channel is formed in the piston rod and penetrates through the piston, the hole channel is used for discharging air in the injector, normal saline can be pumped into the barrel body, and it is confirmed that gas is smoothly discharged through generated bubbles; the pricking needle sleeve is arranged at the output port at the bottom of the barrel body, and the tail end of the pricking needle sleeve is blunt, so that the abdominal visceral organ tissues are prevented from being damaged; the puncture needle is used for penetrating through the hole channel, the piston and the pricking needle sleeve; and a three-way valve is also arranged on the pricking needle sleeve. According to the utility model, gas in the piston can be discharged conveniently by arranging the hole channel; the injector can be conveniently fixed by arranging the base, and the pressure in the abdominal cavity can be conveniently measured by arranging the three-way valve.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a pneumoperitoneum decompression device. Background Art

[0002] During endoscopic full-thickness resection (EFTR) and natural orifice endoscopic surgery (NOTES) for "active perforation" of the entire layer of the digestive tract, and during endoscopic minimally invasive surgery, artificial pneumoperitoneum will occur. Currently, the main method is to use a syringe to puncture and exhaust the gas to reduce pressure during the operation. The existing technology has the problem of no fixing device and inability to directly measure the intra-abdominal pressure. In order to solve this technical problem, a pneumoperitoneum decompression device is proposed. Utility Model Content

[0003] The purpose of the utility model is to provide a pneumoperitoneum decompression device to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A pneumoperitoneum decompression device comprises: a base and a syringe, wherein the syringe is used to be inserted into a receiving cavity on the base; the syringe comprises a piston, a piston rod and a barrel; the piston is slidably arranged inside the barrel, the piston rod is mounted on the piston, a vertical channel is arranged inside the piston rod, the channel is used to discharge the air inside the syringe, physiological saline can be drawn into the barrel, and is used to confirm that the gas is discharged smoothly through the generated bubbles; a puncture needle sleeve is arranged at the output port at the bottom of the barrel; a puncture needle is also included, and the puncture needle is used to pass through the channel, the piston and the puncture needle sleeve; a three-way valve is also arranged on the puncture needle sleeve.

[0006] As a further solution of the utility model: a limit switch is also arranged on the base, a threaded end is arranged on the outer side of the limit switch, the threaded end cooperates with the threaded through hole on the base, and one end of the limit switch is used to abut against the surface of the syringe.

[0007] As a further solution of the utility model: an adhesive is provided at the bottom of the base.

[0008] As a further solution of the utility model: a control switch is provided at the outlet of the channel.

[0009] As a further solution of the utility model: the first end of the three-way valve is installed on the end of the thorny needle sleeve, and the second end of the three-way valve is sleeved on the syringe output port; the third end of the three-way valve is used to connect the pressure measuring device.

[0010] As a further solution of the utility model: the syringe outlet and the channel are arranged on the same straight line.

[0011] As a further solution of the utility model: the base includes a chassis and a sleeve fixedly mounted on the chassis, the limit switch is arranged on the sleeve, and a through hole for the thorny needle sleeve to pass through is arranged on the chassis.

[0012] Compared with the prior art, the utility model has the following beneficial effects: by setting the hole, it is convenient to discharge the gas in the piston; by setting the base, it is convenient to fix the syringe; by setting the three-way valve, it is convenient to measure the intra-abdominal pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic structural diagram of the pneumoperitoneum decompression device according to an embodiment of the utility model.

[0014] Figure 2 It is a structural schematic diagram of the base in the pneumoperitoneum decompression device according to an embodiment of the utility model.

[0015] Figure 3 It is a schematic structural diagram of the piston in the pneumoperitoneum decompression device according to an embodiment of the utility model.

[0016] In the figure: 1-base, 2-limit switch, 3-syringe, 4-piston, 5-piston rod, 6-channel, 7-control switch, 8-puncture needle, 9-thorn needle cover, 10-three-way valve, 11-barrel body. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1 , Figure 2 and Figure 3 As shown, Figure 1 This is a schematic structural diagram of a pneumoperitoneum decompression device according to an embodiment of the utility model; Figure 2 It is a structural schematic diagram of a base in a pneumoperitoneum decompression device according to an embodiment of the utility model; Figure 3The schematic diagram of the structure of the piston in the pneumoperitoneum decompression device of the utility model embodiment. Artificial pneumoperitoneum will occur during endoscopic full-thickness resection (EFTR) and natural orifice endoscopic surgery (NOTES) for "active perforation" of the entire layer of the digestive tract and during endoscopic minimally invasive surgery with perforation. Excessive pneumoperitoneum pressure in the abdominal cavity (>15mmHg) can cause the diaphragm to rise, the movement of the lung base to be restricted, and the compliance of the lung to decrease, which will affect the ventilation function and cause hypercapnia and hypoxemia in patients. It is necessary to perform abdominal puncture during surgery to discharge abdominal gas and reduce abdominal pressure. At present, syringe puncture is mostly used to release gas during surgery in clinical practice, and there is no corresponding special pneumoperitoneum puncture decompression device. There is no fixing device when using a syringe to exhaust gas; the intra-abdominal pressure cannot be directly measured; and the syringe needle tip is easy to damage the abdominal organs. In order to solve this technical problem, a pneumoperitoneum decompression device is proposed.

[0019] In conjunction with the accompanying drawings, some embodiments of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0020] Example 1

[0021] See also Figures 1 to 3 , a structural diagram of a pneumoperitoneum decompression device provided in Example 1 of the utility model, the pneumoperitoneum decompression device comprises: a base 1 and a syringe 3, the syringe 3 is used to be inserted into the accommodating cavity on the base 1; the syringe 3 comprises a piston 4, a piston rod 5 and a barrel 11; the piston 4 is slidably arranged inside the barrel 11, the piston rod 5 is installed on the piston 4, a vertical channel 6 is arranged inside the piston rod 5, the 6 passes through the piston 4, the channel 6 is used to discharge the air inside the syringe 3, physiological saline can be drawn into the barrel, and it is used to confirm that the gas is discharged smoothly through the generated bubbles; a puncture needle sleeve 9 is arranged at the output port at the bottom of the barrel 11; the end of the puncture needle sleeve 9 is designed with a blunt head to avoid damaging the abdominal visceral tissue; it also includes a puncture needle 8, the puncture needle 8 is used to pass through the channel 6, the piston 4 and the puncture needle sleeve 9; the puncture needle sleeve 9 is also provided with a three-way valve 10.

[0022] The utility model is convenient for discharging gas in the piston 4 by providing a hole 6; is convenient for fixing the syringe 3 by providing a base 1; and is convenient for measuring the intra-abdominal pressure by providing a three-way valve 10.

[0023] It should be noted that if Figure 1 As shown, the barrel 11 contains physiological saline solution, and bubbles can be seen when gas is discharged, so it can be intuitively seen whether gas is discharged.

[0024] In the embodiment of the utility model, in order to improve the stability of the syringe 3 in the base 1, a limit switch 2 is further provided on the base 1, and the limit switch 2 can be a threaded rod.

[0025] The limit switch 2 is provided with a threaded end on its outer side, and the threaded end cooperates with the threaded through hole on the base 1. One end of the limit switch 2 is used to abut against the surface of the syringe 3, so as to fix the syringe 3. The other end of the limit switch 2 is a driving end.

[0026] It should be noted that after puncture, the puncture needle 8 is pulled out from the puncture needle cover 9, and the puncture needle cover 9 and the syringe 3 are fixed by the base 1, which is not easy to cause internal organ damage. It can be judged whether gas is discharged by observing the bubbles of physiological saline in the syringe 3.

[0027] In the embodiment of the utility model, in order to improve the stability of the base 1, an adhesive is provided at the bottom of the base 1 to facilitate adhesion to the skin and play a fixing role.

[0028] In the embodiment of the utility model, in order to control the exhaust speed of the hole 6, a control switch 7 is provided at the outlet of the hole 6, and the control switch 7 can be a switch valve, which can be set at the opening of the hole 6 by a thread, but when the puncture needle 8 needs to be inserted, the control switch 7 can be removed. Of course, the control switch 7 can also have other forms and can be set as needed.

[0029] In the embodiment of the utility model, the first end of the three-way valve 10 is installed on the end of the thorn needle sleeve 9, and the second end of the three-way valve 10 is sleeved on the output port of the syringe 3; the third end of the three-way valve 10 is used to connect a pressure measuring device. The pressure measuring device can be a pressure gauge or a pressure sensor. By setting the three-way valve 10, it is convenient to directly measure and monitor the abdominal pressure, and the three-way valve 10 is used to adjust the gas outlet speed.

[0030] In the embodiment of the utility model, the outlet of the syringe 3 and the channel 6 are arranged on the same straight line.

[0031] In the embodiment of the utility model, the outer surface of the syringe 3 is adapted to the inner cavity of the base 1 , so that the syringe 3 is easily inserted into the base 1 .

[0032] In the embodiment of the utility model, the base 1 includes a chassis and a sleeve fixedly mounted on the chassis, the limit switch 2 is arranged on the sleeve, and a through hole for the thorn needle sleeve 9 to pass through is arranged on the chassis.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" 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 or an electrical connection; 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 present invention can be understood according to specific circumstances.

[0035] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0036] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A pneumoperitoneum decompression device, characterized in that: include: A base (1) and a syringe (3), wherein the syringe (3) is used to be inserted into a receiving cavity on the base (1); the syringe (3) comprises a piston (4), a piston rod (5) and a barrel (11); the piston (4) is slidably arranged inside the barrel (11), the piston rod (5) is mounted on the piston (4), a vertical hole (6) is arranged inside the piston rod (5), the hole (6) passes through the piston (4), the hole (6) is used to discharge the air inside the syringe (3), physiological saline can be drawn into the barrel (11), and is used to confirm that the gas is discharged smoothly through the generated bubbles; a puncture needle sleeve (9) is arranged at the output port at the bottom of the barrel (11); and the puncture needle (8) is also included, wherein the puncture needle (8) is used to pass through the hole (6), the piston (4) and the puncture needle sleeve (9); and a three-way valve (10) is also arranged on the puncture needle sleeve (9).

2. A pneumoperitoneum decompression device according to claim 1, characterized in that: A limit switch (2) is also provided on the base (1), and a threaded end is provided on the outer side of the limit switch (2). The threaded end cooperates with the threaded through hole on the base (1), and one end of the limit switch (2) is used to abut against the surface of the syringe (3).

3. A pneumoperitoneum decompression device according to claim 1, characterized in that: Adhesive glue is provided at the bottom of the base (1).

4. The pneumoperitoneum decompression device according to claim 1, characterized in that: A control switch (7) is provided at the outlet of the hole (6).

5. The pneumoperitoneum decompression device according to claim 1, characterized in that: The first end of the three-way valve (10) is mounted on the end of the thorny needle sleeve (9), and the second end of the three-way valve (10) is sleeved on the output port of the syringe (3); the third end of the three-way valve (10) is used to connect to a pressure measuring device.

6. The pneumoperitoneum decompression device according to claim 1, characterized in that: The output port of the syringe (3) and the channel (6) are arranged on the same straight line.

7. The pneumoperitoneum decompression device according to claim 2, characterized in that: The base (1) comprises a chassis and a sleeve fixedly mounted on the chassis, the limit switch (2) is arranged on the sleeve, and the chassis is provided with a through hole for the thorn needle sleeve (9) to pass through.

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