Collapsible balloon device

Abstract

The utility model relates to a detachable balloon device, including the outer tube, the inner tube that can slide along the outer tube axial direction is arranged in the outer tube, the front portion of inner tube is connected with the detachable and front end installation has the clamping rod spare of balloon, the clamping rod spare can realize separation with the inner tube when the inner tube exposes the outer tube and pushes forward, the needle tube that can slide along the inner tube axial direction is arranged in the inner tube, the channel that the needle head of needle tube passes through and communicates the balloon is provided with the leakage-proof structure in the clamping rod spare. The device helps to fix the intestinal tract, reduces the intestinal peristalsis, reduces the operation time, prevents the fecal water and discharges downward, guarantees the clean of the wound surface, promotes the safety of the operation patient.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, and in particular to a detachable balloon device for endoscopic surgery. Background Technology

[0002] With the continuous development of medical technology, the requirements for precision in endoscopic surgery are becoming increasingly stringent. In the clinical practice of endoscopic surgery, especially intestinal surgery, creating a good surgical field and preventing fecal contamination of the surgical area are crucial to ensuring the safety and success of the surgery. However, there are currently no medical devices available that can create a good surgical field and prevent fecal contamination of the surgical area. Utility Model Content

[0003] The purpose of this invention is to provide a detachable balloon device that helps to fix the intestines, reduce intestinal peristalsis, and prevent fecal matter from flowing downwards.

[0004] The technical solution of this utility model is as follows: a detachable balloon device, including an outer tube, an inner tube that can slide along the axial direction of the outer tube is provided inside the outer tube, a detachable locking rod with a balloon installed at the front end of the inner tube is snapped into the front end of the inner tube, the locking rod can be separated from the inner tube when the inner tube is pushed forward to expose the outer tube, a needle tube is provided inside the inner tube, and a leak-proof structure is provided in the channel on the locking rod for the needle of the needle tube to pass through and communicate with the balloon.

[0005] Furthermore, the front end of the inner tube is provided with a forward-extending snap-fit ​​portion, the snap-fit ​​portion having a first snap-fit ​​recess that is radially recessed to one side, the front end of the snap-fit ​​portion forming a first snap-fit ​​protrusion that protrudes to the other side, the rear part of the snap-fit ​​rod having a second snap-fit ​​protrusion that mates with the first snap-fit ​​recess, and the snap-fit ​​rod having a second snap-fit ​​recess that mates with the first snap-fit ​​protrusion.

[0006] Furthermore, the front end of the inner tube is provided with a first channel for the needle to pass through, the second snap-fit ​​protrusion is provided with a second channel, the first snap-fit ​​protrusion is provided with a third channel, and the channel on the snap-fit ​​rod is located on the same axis as the third channel, the second channel, and the first channel.

[0007] Furthermore, a magnetic attraction structure is provided between the front part of the inner tube and the snap-fit ​​rod. The magnetic attraction structure includes a first magnetic block disposed at the front part of the inner tube, and a second magnetic block that attracts the first magnetic block is disposed on the snap-fit ​​rod.

[0008] Furthermore, the leak-proof structure includes a plurality of first inclined membrane flaps that are spaced apart along the axial direction of the channel and whose rear ends are fixed to one side wall of the channel, and a plurality of second inclined membrane flaps that are spaced apart along the axial direction on the other side wall of the channel and are misaligned with the first inclined membrane flaps, with the rear ends of the second inclined membrane flaps being fixedly connected to the other side wall of the channel.

[0009] Furthermore, the distance between the front end of the second inclined flap and the first inclined flap is less than 0.6 mm.

[0010] Furthermore, the outer tube has an arc-shaped chamfer on the outer periphery of its front end, and a radially protruding gripping part at its rear end.

[0011] Furthermore, the rear end of the inner tube extends out of the outer tube and is provided with a pushing part.

[0012] Furthermore, the needle tip of the needle tube is a blunt needle, and the rear end of the needle tube extends out of the inner tube and is provided with a connector.

[0013] Furthermore, the balloon is made of rubber or latex material, and the balloon has a connecting part that wraps around the outer periphery of the front part of the snap-fit ​​rod and is sealed and fixed to the snap-fit ​​rod.

[0014] Compared with the prior art, the present invention has the following advantages: 1. The device has a simple and compact structure, which makes it easy to fix the intestine at the upper end of the surgical area, prevent gas from rising, stimulate intestinal peristalsis, thereby improving the field of vision, facilitating endoscopic surgery, reducing interference factors during surgery, shortening operation time, optimizing the surgical procedure, and enabling the surgery to be performed more efficiently.

[0015] 2. This device helps prevent fecal matter from flowing downwards from the upper part of the balloon in the intestines, ensuring a clean wound, reducing the risk of postoperative infection, improving the safety of surgical patients, shortening the length of hospital stay, and controlling medical costs from multiple dimensions, thus having significant practical value.

[0016] 3. The device uses a snap-fit ​​structure between the snap-fit ​​rod and the inner tube to facilitate the separation of the balloon and the inner tube, making it easy to operate and use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention (the state when the balloon is not filled with liquid or gas); Figure 2 This describes the state of the balloon of this invention when it is filled with liquid or gas and expands. Figure 3 This is an enlarged view of the front part of the inner tube of this utility model; In the diagram: 10-Outer tube 11-Curved chamfer 12-Holding part 20-Inner tube 20a-Snap-fit ​​part 21-First snap-fit ​​recess 22-First snap-fit ​​protrusion 23-First channel 24-Second channel 25-Pushing part 26-First magnet 30-Ball 31-Connecting part 40-Snap-fit ​​rod 41-Channel 42-Second snap-fit ​​protrusion 43-Second snap-fit ​​recess 44-Third channel 45-First inclined flap 46-Second inclined flap 50-Needle tube 51-Needle 52-Connector. Detailed Implementation

[0018] To make the above-mentioned features and advantages of this utility model more easily understood, specific embodiments are described below in conjunction with the accompanying drawings, but this utility model is not limited thereto.

[0019] refer to Figures 1 to 3 A detachable balloon device includes an outer tube 10, within which an inner tube 20, capable of sliding along the outer tube's axial direction, is disposed. A detachable latch 40 is engaged at the front of the inner tube. The rear of the latching rod is located within the outer tube, and a balloon 30 is mounted at its front end. The latching rod can separate from the inner tube when the inner tube is pushed forward to expose the outer tube. A needle 50, capable of sliding along the inner tube's axial direction, is disposed within the inner tube. A leak-proof structure is provided within a channel 41 on the latching rod through which a needle 51 for the needle passes and communicates with the balloon. This leak-proof structure helps to prevent or reduce fluid leakage after the balloon is injected with liquid or gas and inflates to adhere to the intestinal wall.

[0020] In this embodiment, the front end of the inner tube is provided with a forward-extending snap-fit ​​portion 20a. The snap-fit ​​portion has a first snap-fit ​​recess 21 that is radially recessed to one side, and the front end of the snap-fit ​​portion forms a first snap-fit ​​protrusion 22 that protrudes to the other side. The rear part of the snap-fit ​​rod has a second snap-fit ​​protrusion 42 that mates with the first snap-fit ​​recess, and the snap-fit ​​rod is provided with a second snap-fit ​​recess 43 that mates with the first snap-fit ​​protrusion. By the engagement of the first snap-fit ​​recess and the second snap-fit ​​protrusion, and the engagement of the first snap-fit ​​protrusion and the second snap-fit ​​recess, the snap-fit ​​rod can be connected to the inner tube inside the outer tube and prevent the snap-fit ​​rod from detaching from the inner tube; and when the snap-fit ​​lever separates from the outer tube, the inner tube can be separated from the snap-fit ​​rod.

[0021] In this embodiment, to enable the injection of liquid (pure water or saline) or gas into the balloon via a needle, the front end of the inner tube is provided with a first channel 23 for the needle to pass through, the second locking protrusion is provided with a second channel 24, and the first locking protrusion is provided with a third channel 44. The channel on the locking rod is aligned with the first, second, and third channels and the third channel. This facilitates the needle to pass through the first, second, and third channels sequentially.

[0022] In this embodiment, a magnetic attraction structure is provided between the front part of the inner tube and the locking rod. The magnetic attraction structure includes a first magnetic block 26 disposed at the front part of the inner tube, and a second magnetic block disposed on the locking rod that attracts the first magnetic block. Specifically, the first magnetic block is disposed within a first locking protrusion, and the second magnetic block is disposed within a second locking recess. This magnetic attraction structure prevents the locking rod from immediately separating from the inner tube when it detaches from the outer tube, and allows for successful retrieval by allowing the locking rod to adhere to the front part of the inner tube upon balloon puncture.

[0023] In this embodiment, to prevent or avoid the leakage of liquid or gas from the balloon after liquid injection, the leak-proof structure includes several first inclined membrane flaps 45 spaced apart along the axial direction of the channel and fixed to one side wall of the channel at their rear ends. Several second inclined membrane flaps 46, spaced apart along the axial direction of the channel and misaligned with the first inclined membrane flaps, are located on the other side wall of the channel. The rear ends of the second inclined membrane flaps are fixedly connected to the other side wall of the channel. The distance between the front end of the second inclined membrane flap and the first inclined membrane flap is less than 0.5 mm. By setting the membrane flaps at an angle, it facilitates the passage of the needle. After liquid filling, the channel is blocked by the rearward tilting of the other ends of the multiple first and second inclined membrane flaps, thereby reducing or preventing the leakage of liquid or gas from the balloon. The first and second inclined membrane flaps are both thin sheets, see [reference needed]. Figure 2 Furthermore, under the outward pushing action of liquid or gas, the other ends of the first and second inclined membrane flaps can touch or abut against the sidewall of the channel. That is, the length of the first and second inclined membrane flaps needs to be slightly larger than the diameter of the channel in order to better prevent gas or liquid from flowing out. In another embodiment, inclined membrane flaps can be arranged at intervals and staggered vertically in four directions (front, back, left, and right) on the inner wall of the channel.

[0024] In this embodiment, to prevent the outer tube from scratching the intestine when it is inserted into the intestine, the outer periphery of the front end of the outer tube is provided with an arc-shaped chamfer 11; the rear end of the outer tube has a radially protruding gripping part 12 so as to push the outer tube forward through the gripping part.

[0025] In this embodiment, the rear end of the inner tube extends through the outer tube and is provided with a pushing part 25 so that the inner tube can be driven to move inside the outer tube by the pushing part.

[0026] In this embodiment, the syringe is made of PVC material, which has good wear resistance and pressure resistance, and is not easily absorbing water. The rear end of the syringe extends through the inner tube and is equipped with a connector 52, allowing liquid or gas to be injected into the syringe through the connector. The needle tip of the syringe is a blunt needle to avoid damaging the first and second inclined diaphragm flaps.

[0027] In this embodiment, the balloon has a connecting portion 31 that wraps around the outer periphery of the front part of the snap-fit ​​member and is sealed and fixed to the snap-fit ​​member, thereby achieving the connection between the balloon and the snap-fit ​​member. The balloon is made of rubber or latex material and has good elasticity, which can adapt to the needs of different intestinal diameters.

[0028] In this embodiment, the outer diameter of the outer tube is 2.8~3.0mm, which ensures sufficient space for sliding while avoiding excessive tightness that could hinder passage. The outer diameter of the inner tube is smaller than that of the outer tube to facilitate sliding; the diameter of the inner tube can be designed to be between 1.6mm and 2.2mm. The outer diameter of the needle can be designed to be approximately 1mm~1.2mm.

[0029] In this embodiment, the balloon is deflated when no liquid is injected, similar to an uninflated balloon. The needle can initially be located within the inner tube, and then passed through the leak-proof structure when liquid or gas needs to be injected; alternatively, the needle can initially extend through the first, second, and third channels and the passageway, with its tip located within the balloon, facilitating direct injection of liquid or gas. The gas is a gas that will not damage the intestines.

[0030] When using this detachable balloon device, the needle at the tip of the syringe is blunt, and the balloon is initially deflated with the needle tip inside. The balloon is then pushed to the surgical area using an endoscope. Once the balloon is in the designated position, the connector at the rear of the syringe is connected to a liquid or gas injector, such as an injection tube. Liquid or gas, such as purified water or saline, is injected into the balloon through the needle. After the balloon inflates to fit against the intestinal wall, the injection of liquid or gas is stopped, and the syringe is pulled back to disengage the needle from the locking mechanism. The inner tube is then pushed forward, or the outer tube is pulled back. The clamping rod is detached from the outer tube, completing the separation of the clamping rod from the inner tube. After the surgery is completed, i.e., after the balloon is used up, the inner tube is pushed forward, and the front part of the inner tube is attracted to the clamping rod by the magnetic attraction structure, completing the docking of the inner tube and the clamping rod. The inner tube is pulled backward or the outer tube is pushed forward, so that the rear part of the clamping rod is retracted into the outer tube. Then, the needle of the syringe is passed through the first channel, the second channel, the third channel and the tube in sequence and inserted into the balloon. Liquid or gas is drawn backward by the suction device (syringe, etc.) to complete the drainage of liquid and gas. The balloon and clamping rod are removed through the endoscope.

[0031] If this utility model discloses or relates to mutually fixedly connected parts or structural components, then unless otherwise stated, a fixed connection can be understood as: a detachable fixed connection (e.g., using bolts or screws) or a non-detachable fixed connection (e.g., riveting or welding). Of course, mutually fixed connections can also be replaced by an integral structure (e.g., manufactured using a casting process) (except where it is obviously impossible to use an integral forming process).

[0032] In addition, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in this utility model above include states or shapes that are similar to, close to, or approximate with them.

[0033] Any component provided by this utility model can be assembled from multiple individual components, or it can be a single component manufactured by a one-piece molding process.

[0034] The above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall be covered by the present utility model.

Claims

1. A detachable balloon device comprising an outer tube, characterized in that, The outer tube contains an inner tube that can slide along the axial direction of the outer tube. The front of the inner tube is snapped with a detachable snap-fit ​​rod with a balloon installed at the front end. The snap-fit ​​rod can separate from the inner tube when the inner tube is pushed forward to expose the outer tube. The inner tube contains a needle tube. The channel on the snap-fit ​​rod for the needle tube to pass through and communicate with the balloon is provided with a leak-proof structure.

2. The detachable balloon device of claim 1, wherein, The front end of the inner tube is provided with a forward-extending snap-fit ​​portion. The snap-fit ​​portion has a first snap-fit ​​recess that is radially recessed to one side. The front end of the snap-fit ​​portion forms a first snap-fit ​​protrusion that protrudes to the other side. The rear part of the snap-fit ​​rod has a second snap-fit ​​protrusion that mates with the first snap-fit ​​recess. The snap-fit ​​rod is provided with a second snap-fit ​​recess that mates with the first snap-fit ​​protrusion.

3. The detachable balloon device of claim 2, wherein, The inner tube has a first channel at its front end for the needle to pass through, the second snap-fit ​​protrusion has a second channel, and the first snap-fit ​​protrusion has a third channel. The channel on the snap-fit ​​rod, the third channel, the second channel, and the first channel are all on the same axis.

4. The detachable balloon device of claim 1, wherein, A magnetic attraction structure is provided between the front part of the inner tube and the snap-fit ​​rod. The magnetic attraction structure includes a first magnetic block disposed at the front part of the inner tube and a second magnetic block disposed on the snap-fit ​​rod that attracts the first magnetic block.

5. The detachable balloon device of claim 1, wherein, The leak-proof structure includes a number of first inclined membrane flaps that are spaced apart along the axial direction of the channel and whose rear ends are fixed to one side wall of the channel. A number of second inclined membrane flaps that are spaced apart along the axial direction on the other side wall of the channel are misaligned with the first inclined membrane flaps. The rear ends of the second inclined membrane flaps are fixedly connected to the other side wall of the channel.

6. The detachable balloon device of claim 5, wherein, The distance between the front end of the second inclined flap and the first inclined flap is less than 0.6 mm.

7. The detachable balloon device of claim 1, wherein, The outer tube has an arc-shaped chamfer at the front end and a radially protruding grip at the rear end.

8. The detachable balloon device of claim 1 or 6, wherein, The rear end of the inner tube extends through the outer tube and is provided with a pushing part.

9. The detachable balloon device of claim 1, wherein, The needle tip of the syringe is a blunt needle, and the rear end of the syringe extends out of the inner tube and is equipped with a connector.

10. The detachable balloon device of claim 1, wherein, The balloon is made of rubber or latex material and has a connecting part that wraps around the outer periphery of the front part of the snap-fit ​​member and is sealed and fixed to the snap-fit ​​member.

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