Splash-proof device for collecting cyst fluid

Abstract

A splash-proof device for cystic fluid collection comprises a needle sheath and a needle core penetrating through the needle sheath, a drainage channel is formed in the needle sheath, and a splash-proof sleeve used for blocking the drainage channel is installed at the tail of the needle sheath; the splash-proof sleeve comprises a sleeve body connected to the tail of the needle sheath and a rubber film installed in the sleeve body, and the needle core penetrates through the rubber film. A liquid outlet pipe communicated with the drainage channel is formed on one side of the splash-proof sleeve, and a connector is installed at the end of the liquid outlet pipe. Compared with the prior art, the anti-splashing sleeve used for blocking the tail of the needle sheath is installed at the tail of the needle sheath, pressurization type connection in the needle sheath is achieved, and therefore it is guaranteed that liquid splashing caused by pressure relief after cystic fluid is punctured is avoided, and meanwhile the liquid outlet pipe and the connector which are communicated with the anti-splashing sleeve are arranged on one side of the anti-splashing sleeve. The connection of the injector and the connector can be realized, so that the suction of liquid in the needle sheath is controlled, and the liquid is convenient to collect.

Description

Technical Field

[0001] This utility model relates to the field of puncture device technology, and specifically to a splash-proof device for collecting cyst fluid. Background Technology

[0002] Cyst aspiration is a surgical treatment for cysts. It involves puncturing the lesion and then using a negative pressure suction device to completely remove the cyst fluid, thereby eliminating the lesion.

[0003] During the aspiration of high-pressure cysts, such as cholecystostomy, PTCD, and thyroid cystic nodule sclerotherapy, the pressure inside the cyst can cause splashing and turbulence of the cyst fluid when the cyst is punctured. This not only hinders the aspiration of the cyst fluid but also poses certain safety hazards.

[0004] Chinese Patent No. CN202111515179 discloses a covered catheter, occlusion device, and occlusion method for sealing vascular puncture sites. The covered catheter includes a catheter body, and an occlusion membrane is provided on the surface of one end of the catheter body that extends into the blood vessel. A traction wire is connected to the occlusion membrane. The occlusion membrane has a first state of being attached to the surface of the catheter body and a second state of being folded. Pulling the traction wire causes the occlusion membrane to deform, and at least part of the occlusion membrane detaches from the connection with the catheter body and forms a folded structure, realizing the transition from the first state to the second state.

[0005] The aforementioned puncture device has a deformable sealing structure. However, when it is necessary to aspirate the fluid inside the catheter body, the deformable sealing structure deforms outside the catheter body to support the inner wall of the blood vessel, but cannot seal the inside of the catheter body, thus making it impossible to control the fluid inside the catheter body. Utility Model Content

[0006] The present invention aims to overcome the defects in the prior art and provide a simple, safe and reliable anti-splash device for collecting cyst fluid.

[0007] To achieve the above-mentioned utility model objectives, the present utility model adopts the following technical solution: a splash-proof device for collecting cyst fluid, comprising a needle sheath and a needle core disposed through the needle sheath, wherein a drainage channel is formed inside the needle sheath, and a splash-proof sleeve for sealing the drainage channel is installed at the tail of the needle sheath; the splash-proof sleeve comprises a sleeve body connected to the tail of the needle sheath and a rubber membrane installed inside the sleeve body, wherein the needle core is disposed through the rubber membrane; a liquid outlet tube communicating with the drainage channel is formed on one side of the splash-proof sleeve, and a connector is installed at the end of the liquid outlet tube.

[0008] In a preferred embodiment of this utility model, the length of the needle core is greater than the length of the needle sheath, and the tail of the needle core passes through the rubber membrane while the top of the needle core passes through the needle sheath.

[0009] As a preferred embodiment of this utility model, the splash-proof sleeve is fitted onto the tail of the needle sheath, and an internal thread is formed inside the sleeve body, while an external thread is formed at the tail of the needle sheath that connects with the internal thread.

[0010] As a preferred embodiment of this utility model, the length of the internal thread is greater than the length of the external thread, and a liquid outlet channel connected to the drainage channel is formed inside the sleeve body.

[0011] As a preferred embodiment of this utility model, one end of the liquid outlet channel is connected to the drainage channel, the other end of the liquid outlet channel is sealed with a rubber membrane, and the liquid outlet pipe is connected to the middle of the liquid outlet channel.

[0012] In a preferred embodiment of this utility model, the drainage channel, the liquid outlet channel, and the liquid outlet pipe are connected in sequence.

[0013] In a preferred embodiment of this utility model, the rubber membrane is fixedly adhered to the inside of the sleeve body, and the rubber membrane is located at the end opening of the sleeve body.

[0014] As a preferred embodiment of this utility model, the front end of the needle core is formed with a needle tip for puncturing the cyst cavity.

[0015] In a preferred embodiment of this utility model, the liquid outlet tube is a transparent structure.

[0016] As a preferred embodiment of this utility model, the liquid outlet pipe and the sleeve body are an integral structure.

[0017] Compared with the prior art, the beneficial effects of this utility model are: by installing a splash-proof sleeve at the tail of the needle sheath to seal the tail of the needle sheath, a pressurized connection is achieved inside the needle sheath, thereby ensuring that the fluid in the sac will not splash due to pressure relief after puncture. At the same time, a liquid outlet tube and a connector connected to the splash-proof sleeve are provided on one side of the splash-proof sleeve, which can realize the connection between the syringe and the connector to control the aspiration of the fluid in the needle sheath, and facilitate the collection of the fluid. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the needle sheath structure;

[0020] Figure 3 This is a schematic diagram of the splash-proof sleeve.

[0021] Figure 4 This is a cross-sectional view of the splash guard sleeve;

[0022] Reference numerals: needle sheath 1, drainage channel 11, external thread 12, needle core 2, needle tip 21, splash-proof sleeve 3, sleeve body 31, internal thread 32, rubber membrane 33, liquid outlet channel 34, liquid outlet tube 4, connector 41. Detailed Implementation

[0023] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0024] like Figures 1-4 As shown, a splash-proof device for collecting cyst fluid includes a needle sheath 1 and a needle core 2 that penetrates the needle sheath 1. A drainage channel 11 is formed inside the needle sheath 1, and a splash-proof sleeve 3 for sealing the drainage channel 11 is installed at the tail of the needle sheath 1. The splash-proof sleeve 3 includes a sleeve body 31 connected to the tail of the needle sheath 1 and a rubber membrane 33 installed inside the sleeve body 31. The needle core 2 is disposed through the rubber membrane 33. A liquid outlet tube 4 communicating with the drainage channel 11 is formed on one side of the splash-proof sleeve 3, and a connector 41 is installed at the end of the liquid outlet tube 4.

[0025] A drainage channel 11 is formed in the middle of the needle sheath 1 along the length of the needle sheath 1, and the front end of the needle sheath 1 is used to correspond to the cyst cavity. The rear end of the needle sheath 1 is blocked by the anti-splash sleeve 3. Due to the presence of the liquid outlet tube 4, the cyst cavity corresponding to the front end of the needle sheath 1 is connected to the liquid outlet tube 4. The connector 41 is used to connect to the syringe syringe, so that the negative pressure in the drainage channel 11 can be realized simultaneously under the suction action of the syringe syringe, thereby realizing the suction of the cyst fluid at the front end of the drainage channel 11, and the suction of the cyst fluid can be controlled by the syringe syringe.

[0026] The length of the needle core 2 is greater than the length of the needle sheath 1. The tail of the needle core 2 passes through the rubber membrane 33 while the top of the needle core 2 passes through the needle sheath 1. The needle core 2 must ensure that while it is connected to the rubber membrane 33, the front end of the needle core 2 can puncture the cyst cavity, so as to facilitate the removal of the needle core 2 after the front end of the needle core 2 punctures the cyst cavity.

[0027] The splash-proof sleeve 3 is fitted onto the tail of the needle sheath 1, and an internal thread 32 is formed inside the sleeve body 31. An external thread 12 is formed at the tail of the needle sheath 1 that connects with the internal thread 32. The splash-proof sleeve 3 is used to seal the tail of the needle sheath 1 to prevent the bladder fluid from flowing out from the tail of the needle sheath 1. At the same time, under the action of the splash-proof sleeve 3, the drainage channel 11 is only connected to the bladder cavity and the discharge tube 4. During the suction process of the discharge tube 4, no shunting of the bladder fluid will occur.

[0028] During use, the sleeve body 31 is fitted onto the tail of the needle sheath 1 by the meshing action of the internal thread 32 and the external thread 12, and the sleeve body 31 is fixedly installed at the tail of the needle sheath 1 by the action of the thread.

[0029] The length of the internal thread 32 is greater than the length of the external thread 12, and the sleeve body 31 has a liquid outlet channel 34 connected to the drainage channel 11, ensuring that the sleeve body 31 can rotate to the end of the external thread 12, thereby achieving self-locking of the sleeve body 31 at the tail of the needle sheath 1 under the threaded connection between the end of the external thread 12 and the sleeve body 31.

[0030] One end of the liquid outlet channel 34 is connected to the drainage channel 11, and the other end of the liquid outlet channel 34 is sealed with a rubber membrane 33. The liquid outlet pipe 4 is connected to the middle of the liquid outlet channel 34. The drainage channel 11, the liquid outlet channel 34 and the liquid outlet pipe 4 are connected in sequence.

[0031] The fluid outlet channel 34 is formed inside the needle sheath 1 and is located between the drainage channel 11 and the fluid outlet tube 4. During the aspiration process, the fluid passes through the drainage channel 11, the fluid outlet channel 34 and the fluid outlet tube 4 in sequence.

[0032] The rubber membrane 33 is fixedly adhered to the sleeve body 31, and the rubber membrane 33 is located at the end opening of the sleeve body 31. The front end of the needle core 2 of the rubber membrane 33 is formed with a needle tip 21 for puncturing the cyst cavity, and the needle tip 21 is also used to puncture the rubber membrane 33.

[0033] The liquid outlet tube 4 is transparent, which makes it easy to observe the color of the fluid. The liquid outlet tube 4 and the sleeve body 31 can be made of plastic as a single piece.

[0034] In actual use, the splash-proof sleeve 3 is first installed at the tail of the needle sheath 1, and then the needle core 2 is connected to the needle sheath 1 through the splash-proof sleeve 3. At this time, the needle core 2 can pass through the rubber membrane 33 under the action of the needle tip 21, and the needle body of the needle core 2 is held by the rubber membrane 33.

[0035] When the needle core 2 punctures the cyst cavity and liquid enters the needle sheath 1, the needle core 2 can be directly pulled out. The rubber membrane 33 self-repairs under its own structure, and the liquid will not splash out due to the obstruction of the rubber membrane 33. Then, the liquid can be aspirated through the syringe connected to the connector 41. It can be used for aspiration of high-pressure cyst cavities such as cholecystostomy, PTCD, and thyroid cystic nodule sclerosis treatment, to prevent liquid splashing and turbulence, and at the same time facilitate liquid collection.

[0036] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0037] Although this document frequently uses reference numerals from the accompanying drawings, such as needle sheath 1, drainage channel 11, external thread 12, needle core 2, needle tip 21, splash-proof sleeve 3, sleeve body 31, internal thread 32, rubber membrane 33, liquid outlet channel 34, liquid outlet tube 4, and connector 41, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A splash-proof device for collecting sac fluid, comprising a needle sheath (1) and a needle core (2) disposed through the needle sheath (1), characterized in that, A drainage channel (11) is formed inside the needle sheath (1), and a splash-proof sleeve (3) for sealing the drainage channel (11) is installed at the tail of the needle sheath (1); the splash-proof sleeve (3) includes a sleeve body (31) connected to the tail of the needle sheath (1) and a rubber membrane (33) installed inside the sleeve body (31), and the needle core (2) is set through the rubber membrane (33); a liquid outlet pipe (4) connected to the drainage channel (11) is formed on one side of the splash-proof sleeve (3), and a connector (41) is installed at the end of the liquid outlet pipe (4).

2. The splash-proof device for collecting sac fluid according to claim 1, characterized in that, The needle core (2) is longer than the needle sheath (1), and the tail of the needle core (2) passes through the rubber membrane (33) while the top of the needle core (2) passes through the needle sheath (1).

3. A splash-proof device for collecting sac fluid according to claim 1, characterized in that, The splash-proof sleeve (3) is fitted onto the tail of the needle sheath (1), and an internal thread (32) is formed inside the sleeve body (31), and an external thread (12) is formed at the tail of the needle sheath (1) to connect with the internal thread (32).

4. A splash-proof device for collecting sac fluid according to claim 3, characterized in that, The length of the internal thread (32) is greater than the length of the external thread (12), and the sleeve body (31) has a liquid outlet channel (34) that is connected to the drainage channel (11).

5. A splash-proof device for collecting sac fluid according to claim 4, characterized in that, One end of the liquid outlet channel (34) is connected to the drainage channel (11), and the other end of the liquid outlet channel (34) is sealed with a rubber membrane (33). The liquid outlet pipe (4) is connected to the middle of the liquid outlet channel (34).

6. A splash-proof device for collecting sac fluid according to claim 5, characterized in that, The drainage channel (11), the liquid outlet channel (34), and the liquid outlet pipe (4) are connected in sequence.

7. A splash-proof device for collecting sac fluid according to claim 1, characterized in that, The rubber membrane (33) is fixedly adhered to the sleeve body (31), and the rubber membrane (33) is located at the end opening of the sleeve body (31).

8. A splash-proof device for collecting sac fluid according to claim 1, characterized in that, The needle core (2) has a needle tip (21) formed at the front end for puncturing the cyst cavity.

9. A splash-proof device for collecting sac fluid according to claim 1, characterized in that, The liquid outlet tube (4) is transparent.

10. A splash-proof device for collecting sac fluid according to claim 9, characterized in that, The liquid outlet pipe (4) and the sleeve body (31) are an integral structure.

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