Exhaust pressure reducer for pleuroperitoneal cavity

Abstract

The utility model relates to the technical field of medical instruments, in particular to a pleuroperitoneal cavity exhaust pressure reducer which comprises a puncture assembly and a pressure reduction assembly, the puncture assembly comprises a puncture cannula and a needle core, the puncture cannula is arranged on the surface of the needle core in a sleeved mode, a through hole is formed in the surface of the right end of the puncture cannula, and the pressure reduction assembly comprises a hose one-way valve and a connecting base. The connecting base is fixedly connected to the left end of the puncture cannula, the number of the through holes is multiple, every four through holes form one group and are divided into three groups, and the three groups of through holes are formed in the surface of the puncture cannula at equal intervals. The puncture assembly is arranged, the needle core and the puncture cannula are punctured into the abdominal cavity of a patient together, then the needle core is rotated to be pulled out of the puncture cannula, the end, in the abdominal cavity, of the puncture cannula is reset and bent, and the bent puncture cannula is matched with the design of the through hole; the drainage decompression device can avoid injury to visceral organs of a patient while conducting drainage decompression, and meanwhile, an assistant is not needed for fixation, and the puncture depth does not need to be adjusted in time.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a thoracic and abdominal cavity exhaust pressure reducer. Background Art

[0002] With the rapid development of endoscopic technology, various endoscopic examinations and treatments are increasingly used in clinical practice. In particular, endoscopic resection of gastrointestinal tumors is favored by doctors and patients for its characteristics of "minimally invasive, highly effective, less damaging, and rapid recovery". Endoscopic resection of gastrointestinal tumors is divided into "endoscopic mucosal dissection (ESD)" and "endoscopic submucosal tumor resection" according to the nature of the lesion. These surgical methods are "minimally invasive, highly effective, less damaging, and rapid recovery" but have a high probability of gastrointestinal perforation. After perforation, a large amount of gas will enter the thoracic and abdominal cavity, followed by thoracic and abdominal cavity gas accumulation and high pressure, seriously affecting the patient's respiratory and circulatory functions.

[0003] In view of the above-mentioned gas accumulation and high pressure, it is necessary to perform decompression and exhaust surgery in time. At present, the existing decompression method is to select a high position in the thoracic and abdominal cavity and avoid important organs and blood vessels, use a 50 ml empty needle to inhale 15 ml of normal saline, pierce the thoracic and abdominal cavity at the puncture point with a needle, remove the inner core of the empty needle to facilitate the overflow of gas in the normal saline, and perform decompression treatment. However, there are some disadvantages in actual operation, such as: 1. The puncture empty needle needs to be continuously fixed by an assistant to ensure that it is perpendicular to the body surface; 2. As the amount of gas in the thoracic and abdominal cavity decreases, the chest wall or abdominal wall sinks, and the puncture needle needs to be withdrawn in time, otherwise the internal organs or blood vessels may be damaged; 3. As the pressure decreases, the saline in the empty needle may enter the thoracic and abdominal cavity and cause secondary infection; 4. The operation time is relatively long, and there is a possibility that multiple punctures and exhaust are required. In view of the above defects, the utility model proposes a thoracic and abdominal cavity decompression device. Utility Model Content

[0004] The purpose of the present utility model is to provide a thoracic and abdominal cavity exhaust pressure reducer to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a thoracic and abdominal cavity exhaust pressure reducer, comprising a puncture assembly and a pressure reducing assembly;

[0006] The puncture assembly includes a puncture sleeve and a needle core. The puncture sleeve is sleeved on the surface of the needle core, and a through hole is opened on the right end surface of the puncture sleeve.

[0007] The decompression assembly includes a hose one-way valve and a connecting seat, and the connecting seat is fixedly connected to the left end of the puncture sleeve.

[0008] Preferably, the number of the through holes is several, and the through holes are divided into three groups of four each, and the three groups of through holes are equidistantly arranged on the surface of the puncture sleeve.

[0009] Preferably, a thread groove is provided on the left side surface of the connecting seat, and an external thread is provided on the right end surface of the hose one-way valve. The hose one-way valve is threadedly connected to the connecting seat through the external thread and the thread groove.

[0010] Preferably, the hose one-way valve is made of medical transparent plastic material.

[0011] Preferably, the puncture cannula is made of medical memory plastic material.

[0012] Beneficial effects

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] 1. The utility model provides a puncture assembly to puncture the needle core together with the puncture cannula into the patient's abdominal cavity. Subsequently, the needle core is rotated to be pulled out of the puncture cannula, so that the end of the puncture cannula in the abdominal cavity is reset and bent. The curved puncture cannula is designed with a through hole to discharge and reduce pressure while avoiding damage to the patient's organs. At the same time, there is no need for an assistant to fix it, and there is no need to adjust the puncture depth in time, and exhaust can be continued during the operation.

[0015] 2. The utility model provides a decompression component and a one-way valve in the hose, which only allows gas and liquid to be discharged in one direction, thus avoiding the possibility of infection caused by backflow and improving the safety and convenience of puncture decompression. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the puncture cannula and the needle core assembly of the utility model;

[0018] Figure 2 This is a schematic diagram of the front cross-section structure of the puncture cannula and the needle core assembly of the utility model;

[0019] Figure 3 This is a schematic diagram of the front cross-section structure of the puncture cannula and the needle core after being separated from each other;

[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of the puncture cannula and the hose one-way valve of the utility model;

[0021] Figure 5 This is a schematic diagram of the front cross-section structure of the assembly of the puncture cannula and the hose one-way valve of the utility model.

[0022] In the figure: 1. puncture assembly; 101. puncture cannula; 102. needle core; 103. through hole; 2. decompression assembly; 201. hose one-way valve; 202. connecting seat; 203. threaded groove. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] According to the attached Figure 1-5 As shown, an embodiment of the present invention provides a thoracic and abdominal cavity exhaust pressure reducer, comprising a puncture component 1 and a pressure reducing component 2.

[0025] The puncture assembly 1 includes a puncture sleeve 101 and a needle core 102. The puncture sleeve 101 is sleeved on the surface of the needle core 102, and a through hole 103 is opened on the right end surface of the puncture sleeve 101. There are several through holes 103, and the several through holes 103 are divided into three groups of four each. The three groups of through holes 103 are equidistantly opened on the surface of the puncture sleeve 101.

[0026] The decompression assembly 2 includes a hose one-way valve 201 and a connecting seat 202 . The connecting seat 202 is fixedly connected to the left end of the puncture sleeve 101 .

[0027] A thread groove 203 is provided on the left surface of the connecting seat 202, and an external thread is provided on the right end surface of the hose one-way valve 201. The hose one-way valve 201 is threadedly connected to the connecting seat 202 through the external thread and the thread groove 203. The setting of the external thread and the thread groove 203 facilitates the assembly work between the hose one-way valve 201 and the connecting seat 202.

[0028] The hose one-way valve 201 is made of medical transparent plastic material, so that medical staff can observe the drainage situation inside the hose one-way valve 201. The puncture sleeve 101 is made of medical memory plastic material, so that after the needle core 102 is pulled out of the puncture sleeve 101, the puncture sleeve 101 can be bent and reset to a pigtail shape.

[0029] When the thoracic and abdominal cavity exhaust and decompression device of the present invention is used, the needle core 102 is punctured into the patient's abdominal cavity together with the puncture sleeve 101. Then, the needle core 102 is rotated to be pulled out of the puncture sleeve 101, so that one end of the puncture sleeve 101 in the abdominal cavity is reset and bent. The curved puncture sleeve 101 is matched with the design of the through hole 103, which can discharge and reduce pressure while avoiding damage to the patient's organs. At the same time, there is no need for an assistant to fix it, and there is no need to adjust the puncture depth in time. The exhaust can be continuously carried out during the operation, and the setting of the hose one-way valve 201 only allows one-way discharge of gas and liquid, avoiding the possibility of infection caused by backflow, thereby improving the safety and convenience of puncture decompression.

[0030] The above shows and describes 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 to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A thoracic and abdominal cavity exhaust pressure reducer, characterized in that: It comprises a puncture assembly (1) and a decompression assembly (2); The puncture assembly (1) comprises a puncture sleeve (101) and a needle core (102), wherein the puncture sleeve (101) is sleeved on the surface of the needle core (102), and a through hole (103) is provided on the right end surface of the puncture sleeve (101); The decompression assembly (2) comprises a hose one-way valve (201) and a connecting seat (202), wherein the connecting seat (202) is fixedly connected to the left end of the puncture sleeve (101).

2. The thoracic and abdominal cavity exhaust pressure reducer according to claim 1, characterized in that: The number of the through holes (103) is several, and each of the through holes (103) is divided into three groups of four, and the three groups of through holes (103) are equidistantly arranged on the surface of the puncture sleeve (101).

3. The thoracic and abdominal cavity exhaust pressure reducer according to claim 1, characterized in that: The left side surface of the connecting seat (202) is provided with a thread groove (203), the right end surface of the hose one-way valve (201) is provided with an external thread, and the hose one-way valve (201) is threadedly connected to the connecting seat (202) via the external thread and the thread groove (203).

4. The thoracic and abdominal cavity exhaust pressure reducer according to claim 1, characterized in that: The hose one-way valve (201) is made of medical transparent plastic material.

5. The thoracic and abdominal cavity exhaust pressure reducer according to claim 1, characterized in that: The puncture sleeve (101) is made of medical memory plastic material.

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