Puncture drainage device for subscalp effusion

Abstract

The utility model discloses a puncture drainage device for subscalp effusion, and relates to the technical field of medical instruments. Comprising a puncture needle head, a hollow column tube, a sliding assembly, a built-in tube and a puncture tube, one end of the hollow column tube is fixedly connected with the round bottom of the puncture needle, and a drainage port communicated with the interior of the hollow column tube is formed in the connecting end of the hollow column tube and the puncture needle; a plurality of sliding grooves are formed in the round bottom of the puncture needle head. The sliding assembly is slidably connected with the sliding grooves. The hollow column tube is sleeved with the built-in tube, and the end, close to the puncture needle head, of the built-in tube is located between the sliding assembly and the hollow column tube. The sliding assembly is sleeved with the joint of the contraction piece and the built-in pipe. A drainage notch is formed in the position, corresponding to the drainage opening, of the built-in tube According to the technology, after the drainage tube is placed in, the built-in tube is pulled out, and the sliding assembly shrinks and slides under the action of the rubber ring. After the drainage tube is placed in, the puncture needle head and the hollow column tube are taken out, the drainage tube is connected with an external drainage instrument for drainage, and the operation is simple and convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and more particularly to a puncture and drainage device for subscalp fluid accumulation. Background Art

[0002] During neurosurgery craniotomy, some patients have difficulty in flap healing due to large surgical incisions, poor nutritional status caused by the disease, or loose suture of the dura mater during surgery, which causes cerebrospinal fluid in the subarachnoid space to seep into the subcutaneous tissue along the bone window, forming subcutaneous effusion. Therefore, when subcutaneous effusion occurs, it is necessary to drain the subcutaneous effusion through an internal drainage device.

[0003] Doctors usually use intravenous indwelling needle puncture fixation siphon drainage to treat subscalp fluid accumulation after craniotomy, but the commonly used intravenous indwelling needle has a small rigidity and cannot be designed with a larger diameter to break through the tough scalp tissue. Indwelling needles with smaller diameters are often blocked by blood clots or broken tissues during use, making it difficult to stay in place for a long time, resulting in treatment failure.

[0004] The present application intends to design a special subscalp effusion puncture device, insert a subscalp drainage tube with a larger diameter, and improve the problem that the commonly used indwelling needle is difficult to retain for a long time, resulting in treatment failure. Summary of the invention

[0005] The purpose of the present invention is to provide a puncture and drainage device for subscalp effusion, so as to solve the problem of treatment failure caused by long-term retention of commonly used indwelling needles.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: a puncture and drainage device for subscalp effusion, comprising a puncture needle, a hollow column tube, a sliding assembly, an internal tube and a puncture tube; the puncture needle is a cone, one end of the hollow column tube is fixedly connected to the circular bottom of the puncture needle, and the hollow column tube and the puncture needle connection end are provided with a drainage port that is connected to the inside of the hollow column tube; the circular bottom of the puncture needle is provided with a plurality of slide grooves, and the sliding assembly is slidably connected with the slide grooves; the internal tube is sleeved on the hollow column tube, and one end of the internal tube close to the puncture needle is located between the sliding assembly and the hollow column tube; the sliding assembly is externally sleeved with a connection between a contraction piece and the internal tube; the internal tube is provided with a drainage notch at the corresponding position of the drainage port; one end of the puncture tube is provided with a handle, and the other end is sleeved on the internal tube; the drainage tube is sleeved outside the puncture tube.

[0007] The present invention is further configured as follows: the circular bottom of the puncture needle is provided with at least two slide grooves, and the slide grooves extend from the center of the circle along the radial direction.

[0008] The present invention is further configured as follows: the sliding component is a sliding block, the number of the sliding blocks is at least 2, and the number of the sliding blocks is the same as the number of the sliding grooves.

[0009] The present invention is further configured as follows: the sliding block comprises an arc-shaped block body which is narrow at the top and wide at the bottom, a sliding protrusion is provided on the top of the sliding block, and a sleeve handle with an arc surface is provided on the bottom of the sliding protrusion; the sliding protrusion is slidably connected with the slide groove, and the shrinking piece is sleeved on the sleeve handle. The shrinking piece is a rubber ring.

[0010] The present invention is further configured such that: the tube wall thickness of the built-in tube is equal to or slightly greater than the tube wall thickness of the drainage tube.

[0011] The present invention is further configured as follows: the outer diameter of the hollow column tube is 1 mm, and the inner diameter is 0.5 mm; the outer diameter of the built-in tube is 2 mm, and the inner diameter is 1 mm; the outer diameter of the puncture tube is 3 mm, and the inner diameter is 2 mm. The drainage port on the hollow column tube, the drainage notch on the built-in tube, and the gap between the sliding blocks in the sliding assembly need to be of corresponding size and located on the same axis.

[0012] In summary, the present invention has the following beneficial effects: the technical solution inserts the drainage tube into the puncture device made of rigid material. After the drainage tube is inserted, the drainage fluid flows out from the drainage port through the hollow column tube, and the built-in tube is pulled out. Under the action of the contraction part, the sliding assembly contracts and slides, so that the diameter of the front end of the device becomes smaller. Then the puncture needle, hollow column tube, built-in tube, sliding assembly, contraction part, and puncture tube are taken out, and the drainage tube is connected to the external drainage instrument for drainage, so as to solve the problem that the commonly used indwelling needle is difficult to be retained for a long time, resulting in treatment failure. The operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 Schematic diagram of the use of the puncture drainage device and the drainage tube according to the embodiment of the present invention;

[0014] Figure 2 is a schematic diagram of a drainage tube according to an embodiment of the present invention;

[0015] Figure 3 2. It is a schematic diagram of the general assembly of the puncture and drainage device according to an embodiment of the present invention;

[0016] Figure 4 This is a schematic diagram of the structure of the puncture tube according to an embodiment of the present invention;

[0017] Figure 5 Schematic diagram of the connection between the puncture needle and the internal tube in an embodiment of the present invention;

[0018] Figure 6 Schematic diagram of the structure of the puncture needle and the sliding block in the embodiment of the present invention;

[0019] Figure 7This is a schematic diagram of the structure of a rubber ring in an embodiment of the present invention;

[0020] Figure 8 is a schematic diagram of the structure of a sliding block in an embodiment of the present invention;

[0021] Fig. 9 Schematic diagram of the connection between the puncture needle and the hollow column tube in an embodiment of the present invention;

[0022] Fig.10 This is a schematic diagram of the internal tube structure in an embodiment of the present invention;

[0023] Fig.11 It is an enlarged view of the connection between the puncture needle head and the hollow column tube in the embodiment of the present invention.

[0024] In the figure: 1. drainage tube; 2. puncture needle; 3. sliding block; 4. built-in tube; 5. handle; 6. puncture tube; 7. rubber ring; 8. hollow column tube; 9. drainage port; 10. drainage notch; 11. slide groove; 31. sleeve handle; 32. block; 33. sliding protrusion. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1-11 The present invention is described in further detail.

[0026] Embodiment: A puncture drainage device for subscalp fluid accumulation, such as Figure 1-Figure 11As shown, it includes a puncture needle 2, a hollow column tube 8, an internal tube 4, a sliding assembly, a puncture tube 6 and a drainage tube 1; the puncture needle 2, the hollow column tube 8, the internal tube 4, the sliding assembly and the puncture tube 6 are all made of rigid materials. The puncture needle 2 is a cone, and three slide grooves 11 are arranged at the circular bottom, and the sliding assembly is slidably connected with the slide groove 11; one end of the hollow column tube 8 is fixedly connected with the circular bottom of the puncture needle 2, and the hollow column tube 8 is provided with a drainage port 9 at the end connected with the puncture needle 2, which is connected with the inside of the hollow column tube 8. The effusion can be seen flowing out through the hollow column tube 8, and the subsequent needle removal operation can be performed. The internal tube 4 is sleeved on the hollow column tube 8, and a drainage notch 10 is arranged at the corresponding position of the drainage port 9, and the number of the drainage port 9 and the drainage notch 10 are both 3; the sliding assembly includes a sliding block 3 and a rubber ring 7, which are sleeved on one end of the internal tube close to the puncture needle. One end of the puncture tube 6 is provided with a handle 5, and the other end is sleeved on the built-in tube 4, and the end close to the puncture needle is tightly pressed against the sliding assembly. The circular bottom of the puncture needle 2 is provided with three slide grooves 11 at intervals, and the slide grooves 11 extend from the center of the circle in the radial direction. The main body of the sliding assembly is a sliding block 3, and the number of sliding blocks 3 and slide grooves 11 is the same, both 3. When expanded, the outer circle diameter is equal to the outer circle diameter of the drainage tube 1, and when retracted, the outer circle diameter is equal to or slightly smaller than the inner circle diameter of the drainage tube 1. The sliding block 3 includes an arc-shaped block 32 with a narrow upper and wide lower part. The top of the sliding block 3 is provided with a sliding protrusion 33, and the bottom thereof is provided with a curved sleeve handle 31; the sliding protrusion 33 is slidably connected with the slide groove 11, and the retracting member is sleeved on the sleeve handle 31. The drainage tube 1 is sleeved outside the puncture tube. When the needle is removed, the front sliding assembly is retracted, and the puncture needle 2, the hollow column tube 8, the sliding assembly, the retracting member 4, the built-in tube 4 and the puncture tube 6 are taken out, and the drainage tube 1 is inserted. The outer diameter of the hollow column tube 8 is 1 mm, and the inner diameter is 0.5 mm; the outer diameter of the built-in tube 4 is 2 mm, and the inner diameter is 1 mm; the outer diameter of the puncture tube 6 is 3 mm, and the inner diameter is 2 mm. The drainage port on the hollow column tube, the drainage notch on the built-in tube, and the gap between the sliding blocks in the sliding assembly need to be of corresponding size and located on the same axis.

[0027] Working principle: When the puncture device is used, the drainage tube 1 is sleeved on the outermost layer of the puncture device, and the drainage tube 1 is implanted by breaking the skin through the puncture needle 2. When the drainage fluid in the body passes through the gap of the sliding component from the drainage port 9 through the hollow column tube 8, the needle removal operation is performed after the drainage fluid is seen to flow out from the hollow column tube 8. When removing the needle, the built-in tube 4 is pulled out to separate the built-in tube 4 from the sliding component. The sliding component is tightened under the contraction of the elastic rubber ring 7, which facilitates the removal of the puncture needle 2, the hollow column tube 8, the built-in tube 4, the sliding component and the puncture tube 6 as a whole. At the same time, the drainage tube 1 is inserted and drained outward through the drainage tube 1. After the puncture is completed, the puncture device can be inserted with a subscalp drainage tube of a larger diameter, which solves the problem of long-term retention of the commonly used puncture needle leading to treatment failure. The puncture device has a simple structure and is simple and convenient to use.

[0028] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment 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 puncture and drainage device for subscalp effusion, characterized by: The invention comprises a puncture needle (2), a hollow column tube (8), a sliding assembly, an internal tube (4) and a puncture tube (6); the puncture needle (2) is a cone-shaped body, one end of the hollow column tube (8) is fixedly connected to the circular bottom of the puncture needle (2), and the connecting end of the hollow column tube (8) and the puncture needle (2) is provided with a drainage port (9) which is connected to the inside of the hollow column tube (8); the circular bottom of the puncture needle (2) is provided with a plurality of slide grooves (11), and the sliding assembly is connected to the slide grooves. (11) sliding connection; the built-in tube (4) is sleeved on the hollow column tube (8), and one end of the built-in tube (4) close to the puncture needle (2) is located between the sliding component and the hollow column tube (8); the outer sleeve of the sliding component is provided with a connection between the contraction part and the built-in tube (4); the built-in tube (4) is provided with a drainage notch (10) at a position corresponding to the drainage port (9); one end of the puncture tube (6) is provided with a handle (5), and the other end is sleeved on the built-in tube (4).

2. A puncture and drainage device for subscalp effusion according to claim 1, characterized in that: The circular bottom of the puncture needle (2) is provided with at least two slide grooves (11), and the slide grooves (11) extend from the center of the circle along the radial direction.

3. A puncture and drainage device for subscalp effusion according to claim 1, characterized in that: The sliding component is a sliding block (3), the number of the sliding blocks (3) is at least 2, and the number of the sliding blocks (3) is the same as the number of the sliding grooves (11).

4. A puncture and drainage device for subscalp effusion according to claim 3, characterized in that: The sliding block (3) comprises an arc-shaped block (32) which is narrow at the top and wide at the bottom. A sliding protrusion (33) is provided at the top of the sliding block (3), and a sleeve handle (31) with an arc surface is provided at the bottom. The sliding protrusion (33) is slidably connected to the sliding groove (11), and the shrinking piece is sleeved on the sleeve handle (31).

5. The puncture and drainage device for subscalp effusion according to claim 1, characterized in that: The outer diameter of the hollow column tube (8) is 1 mm, and the inner diameter is 0.5 mm; the outer diameter of the built-in tube (4) is 2 mm, and the inner diameter is 1 mm; the outer diameter of the puncture tube (6) is 3 mm, and the inner diameter is 2 mm.

6. The puncture and drainage device for subscalp effusion according to claim 1, characterized in that: The shrinking member is a rubber ring (7).

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