Detachable balloon device and use method

Abstract

The detachable balloon device comprises an outer tube, an inner tube capable of sliding in the axial direction of the outer tube is arranged in the outer tube, the front portion of the inner tube is connected with a clamping rod piece in a clamped mode, the rear portion of the clamping rod piece is located in the outer tube, and a balloon is installed at the front end of the clamping rod piece. The clamping rod piece can be separated from the inner tube when the inner tube is pushed forwards to expose the outer tube, a needle tube capable of sliding in the axial direction of the inner tube is arranged in the inner tube, and a leakage-proof structure is arranged in a channel which is formed in the clamping rod piece and used for a needle head of the needle tube to penetrate through and communicated with the balloon. The device is favorable for fixing the intestinal tract, reducing intestinal tract movement, shortening the operation time, preventing liquid dung from being discharged downwards, ensuring the cleanness of a wound surface and improving the safety of an operation patient.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and particularly to a detachable balloon device and a usage method for endoscopic surgery. Background Art

[0002] With the continuous development of medical technology, the refined requirements for endoscopic surgery are increasing day by day. In the clinical practice of endoscopic surgery, especially intestinal surgery, creating a good visual field for the surgery and preventing fecal contamination of the surgical area in the intestine are key links to ensure the safe and smooth progress of the surgery. However, there is no device in the existing medical devices that can create a good visual field for the surgery and prevent fecal contamination of the surgical area in the intestine. Summary of the Invention

[0003] The purpose of the present invention is to provide a detachable balloon device and a usage method. This device helps to fix the intestine, reduce intestinal peristalsis, reduce the operation time, prevent feces from discharging downward, ensure the cleanliness of the wound surface, and improve the safety of surgical patients.

[0004] The technical solution of the present invention is as follows: A detachable balloon device includes an outer tube. An inner tube capable of sliding axially along the outer tube is arranged inside the outer tube. A detachable clamping rod member with a balloon installed at the front end is clamped at the front part of the inner tube. The clamping rod member can be separated from the inner tube when the inner tube is pushed forward to expose the outer tube. A syringe tube capable of sliding axially along the inner tube is arranged inside the inner tube. A leak-proof structure is arranged in the channel of the clamping rod member through which the needle of the syringe tube passes and communicates with the balloon.

[0005] Further, a clamping part extending forward is arranged at the front end of the inner tube. A first clamping concave part radially recessed to one side is formed on the clamping part. A first clamping convex part protruding to the other side is formed at the front end of the clamping part. A second clamping convex part matched with the first clamping concave part is arranged at the rear part of the clamping rod member. A second clamping concave part matched with the first clamping convex part is arranged on the clamping rod member.

[0006] Further, a first hole for the needle to pass through is arranged at the front end of the inner tube. A second hole is arranged on the second clamping convex part. A third hole is arranged on the first clamping convex part. The channel on the clamping rod member, the third hole, the second hole and the first hole are on the same axis.

[0007] Further, a magnetic attraction structure is arranged between the front part of the inner tube and the clamping rod member. The magnetic attraction structure includes a first magnetic block arranged at the front part of the inner tube, and a second magnetic block adsorbed to the first magnetic block is arranged on the clamping rod member.

[0008] Further, the leak-proof structure includes a plurality of first inclined membrane flaps whose rear ends are fixed to one side wall of the channel at intervals along the axial direction of the channel. A plurality of second inclined membrane flaps which are staggered with the first inclined membrane flaps are arranged at intervals along the axial direction on the other side wall of the channel, and the rear ends of the second inclined membrane flaps are fixedly connected to the other side wall of the channel.

[0009] Further, the distance between the front end of the second inclined membrane flap and the first inclined membrane flap is less than 0.5 mm.

[0010] Further, an arc chamfer is provided on the outer periphery of the front end of the outer tube, and the rear end of the outer tube has a radially protruding holding part.

[0011] Further, the rear end of the inner tube passes through the outer tube and is provided with a pushing part.

[0012] Further, the syringe is made of PVC material, the needle head of the syringe is a blunt needle, and the rear end of the syringe passes through the inner tube and is provided with a connector.

[0013] Further, 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 clamping rod and is fixedly sealed with the clamping rod.

[0014] A usage method applied to a detachable balloon device includes the following steps: 1) The needle head at the front end of the syringe is a blunt needle, the initial state of the balloon is a deflated state, and the front end of the needle head is located inside the balloon; 2) After the balloon is pushed to the designated position, connect the rear end of the syringe to the injection tube, and inject liquid or gas into the balloon through the needle head of the syringe; 3) After the balloon expands to the required size, pull the syringe backward to separate the needle head of the syringe from the clamping rod; 4) Push the inner tube forward or pull the outer tube backward to separate the clamping rod from the outer tube, and complete the separation of the clamping rod from the inner tube; 5) After the balloon is used up, push the inner tube forward to complete the docking of the inner tube and the clamping rod; 6) Pull the inner tube backward or push the outer tube forward to make the rear part of the clamping rod retract into the outer tube, and then pass the needle head of the syringe through the clamping rod and extend it into the balloon to complete the discharge of liquid and gas.

[0015] Compared with the prior art, the present invention has the following advantages: 1. The device has a simple and compact structure, which is convenient for the device to fix the intestine at the upper end of the intestine in the operation area, prevent gas from rising, stimulate intestinal peristalsis, thereby improving the vision, facilitating the operation under endoscope, reducing the interference factors in the operation, shortening the operation time, optimizing the operation process, and enabling the operation to be carried out more efficiently.

[0016] 2. The device helps prevent the fecal water above the balloon in the intestine from flowing downward, ensures the cleanliness of the wound surface, reduces the risk of postoperative infection, improves the safety of surgical patients, shortens the hospitalization time of patients, and realizes the control of medical costs from multiple dimensions, having important practical value.

[0017] 3. Through the clamping structure of the clamping rod and the inner tube, the device facilitates the separation of the balloon from the inner tube, and is convenient to operate and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the present invention (the state when the balloon is not filled with liquid or gas); Figure 2 is the state when a part of the liquid or gas is filled into the balloon of the present invention and it expands; Figure 3 is an enlarged view of the clamping rod of the present invention; Figure 4 is an enlarged view of the front part of the inner tube of the present invention; In the figure: 10 - outer tube, 11 - arc chamfer, 12 - holding part, 20 - inner tube, 20a - clamping part, 21 - first clamping concave part, 22 - first clamping convex part, 23 - first channel, 24 - second channel, 25 - pushing part, 26 - first magnet, 30 - balloon, 31 - connecting part, 40 - clamping rod, 41 - channel, 42 - second clamping convex part, 43 - second clamping concave part, 44 - third channel, 45 - first inclined membrane flap, 46 - second inclined membrane flap, 47 - second magnet, 50 - syringe, 51 - needle head, 52 - joint. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] To make the above features and advantages of the present invention more understandable, specific embodiments are given below in conjunction with the drawings and described in detail as follows, but the present invention is not limited thereto.

[0020] Reference Figures 1 to 4 A detachable balloon device includes an outer tube 10, an inner tube 20 capable of sliding axially along the outer tube is arranged inside the outer tube, a detachable clamping 40 is clamped at the front part of the inner tube, the rear part of the clamping rod is located inside the outer tube and a balloon 30 is installed at the front end, the clamping rod can be separated from the inner tube when the inner tube is pushed forward to expose the outer tube, a syringe 50 capable of sliding axially along the inner tube is arranged inside the inner tube, and a leak-proof structure is arranged in the channel 41 of the clamping rod through which the needle head 51 of the syringe passes and communicates with the balloon. The leak-proof structure helps to avoid or reduce the liquid outflow after the balloon is inflated with liquid or gas and fits against the intestinal wall.

[0021] In this embodiment, a clamping portion 20a extending forward is provided at the front end of the inner tube. The clamping portion has a first clamping recess 21 radially recessed toward one side, and a first clamping protrusion 22 protruding toward the other side is formed at the front end of the clamping portion. The rear portion of the clamping rod has a second clamping protrusion 42 that cooperates with the first clamping recess, and a second clamping recess 43 that cooperates with the first clamping protrusion is provided on the clamping rod. Through the cooperation of the first clamping recess and the second clamping protrusion, and the cooperation of the first clamping protrusion and the second clamping recess, the clamping rod can be connected to the inner tube inside the outer tube and prevent the clamping rod from detaching from the inner tube; and when the clamping lever is separated from the outer tube, the inner tube can be separated from the clamping rod.

[0022] In this embodiment, in order to be able to inject liquid (pure water or saline) or gas into the balloon through the needle, a first channel 23 for the needle to pass through is provided at the front end of the inner tube. A second channel 24 is provided on the second clamping protrusion, a third channel 44 is provided on the first clamping protrusion, and the channels on the clamping rod are on the same axis as the third channel, the second channel, and the first channel. Thus, it is convenient for the needle to sequentially pass through the first channel, the second channel, the third channel, and the channel.

[0023] In this embodiment, a magnetic attraction structure is provided between the front portion of the inner tube and the clamping rod. The magnetic attraction structure includes a first magnetic block 26 provided at the front portion of the inner tube, and a second magnetic block 47 that is attracted to the first magnetic block is provided on the clamping rod. Specifically, the first magnetic block is provided inside the first clamping protrusion, and the second magnetic block is provided inside the second clamping recess. Through this magnetic attraction structure, it is possible to avoid immediately separating from the inner tube when the clamping rod detaches from the outer tube; and when the balloon is punctured, the clamping rod can be adsorbed to the front portion of the inner tube to complete the recovery.

[0024] In this embodiment, in order to avoid or prevent the liquid or gas in the balloon from flowing out after injecting the liquid, the leak prevention structure includes a plurality of first inclined membrane flaps 45 whose rear ends are fixed to one side wall of the channel at intervals along the axial direction of the channel. A plurality of second inclined membrane flaps 46 that are offset from the first inclined membrane flaps are provided at intervals along the axial direction 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 obliquely arranging the membrane flaps, it is helpful for the syringe needle to pass through, and after the liquid filling is completed, the other ends of the plurality of first inclined membrane flaps and the second inclined membrane flaps tilt backward to block the channel, thereby reducing or avoiding the liquid or gas in the balloon from flowing out. The first inclined membrane flap and the second inclined membrane flap are each in the shape of a thin sheet, see Figure 2Moreover, under the action of liquid or gas pushing outward, the other ends of the first inclined membrane flap and the second inclined membrane flap can touch or abut against the side wall of the channel, that is, the lengths of the first inclined membrane flap and the second inclined membrane flap need to be slightly greater than the diameter of the channel, so as to better prevent gas or liquid from flowing out. In another embodiment, inclined membrane flaps can be arranged at intervals and vertically offset in four directions (front, back, left, and right) on the inner wall of the channel.

[0025] In this embodiment, in order to avoid scratching the intestine when the outer tube extends into the intestine, an arc chamfer 11 is provided on the outer periphery of the front end of the outer tube; the rear end of the outer tube has a radially protruding holding part 12, so as to push the appearance forward through the holding part.

[0026] In this embodiment, the rear end of the inner tube passes through the outer tube and is provided with a pushing part 25, so as to drive the inner tube to move in the outer tube through the pushing part.

[0027] In this embodiment, the syringe is made of PVC material, has good wear resistance and pressure resistance, and is not easy to absorb water. The rear end of the syringe passes through the inner tube and is provided with a connector 52, so as to inject liquid or gas into the syringe through the connector. The needle head of the syringe is a blunt needle to avoid damaging the first inclined membrane flap and the second inclined membrane flap.

[0028] In this embodiment, the balloon has a connecting part 31 wrapped around the outer periphery of the front part of the clamping rod and sealed and fixed to the clamping rod, so as to connect the balloon with the clamping rod. The balloon is made of rubber or latex material and has good elasticity, and can adapt to the requirements of different intestinal diameters.

[0029] In this embodiment, the outer diameter of the outer tube is 2.8 - 3.0 mm, which can ensure enough space for sliding operation and avoid difficulty in passing due to being too tight. The outer diameter of the inner tube is smaller than the inner diameter of the outer tube for the inner tube to slide, and the diameter of the inner tube can be designed between 1.6 mm and 2.2 mm. The outer diameter of the syringe can be designed to be about 1 mm - 1.2 mm.

[0030] In this embodiment, the balloon is in a deflated state when no liquid is injected, similar to an uninflated balloon. The needle head can be located in the inner tube in the initial state and then pass through the leak-proof structure when liquid or gas needs to be injected; or the needle head initially passes through the first channel, the second channel, the third channel and the channel and extends into the balloon with the front end located in the balloon, which is convenient for directly injecting liquid or gas. The gas is a gas that will not damage the intestine.

[0031] A method of using an application for a detachable balloon device includes the following steps: 1) The needle head at the front end of the syringe is a blunt needle, the initial state of the balloon is a deflated state, the front end of the needle head is located inside the balloon, and the balloon device is pushed above the surgical area through an endoscope; 2) After the balloon is pushed to the designated position, connect the connector at the rear end of the syringe to a liquid or gas syringe such as an injection tube, and inject liquid or gas such as pure water or saline into the balloon through the needle of the syringe; 3) After the balloon expands to fit the intestinal wall, stop injecting liquid or gas, and pull the syringe backward to disengage the needle of the syringe from the clamping rod; 4) Push the inner tube forward or pull the outer tube backward to disengage the clamping rod from the outer tube, completing the separation of the clamping rod from the inner tube; 5) After the operation is completed, that is, after the balloon is used, push the inner tube forward so that the front part of the inner tube is adsorbed to the clamping rod through the magnetic attraction structure, completing the docking of the inner tube and the clamping rod; 6) Pull the inner tube backward or push the outer tube forward to retract the rear part of the clamping rod into the outer tube, then insert the needle of the syringe successively through the first channel, the second channel, the third channel and the pipeline and extend it into the balloon, and draw back the liquid or gas backward through a suction device (such as a syringe) to complete the discharge of the liquid and gas; 7) Remove the balloon and the clamping rod through the endoscope.

[0032] The above are only the preferred embodiments of the present invention. For those of ordinary skill in the art, according to the teachings of the present invention, designing different forms of detachable balloon devices and usage methods does not require creative labor. Without departing from the principles and spirit of the present invention, all equal changes, modifications, substitutions and variations made within the scope of the patent application of the present invention shall fall within the scope of the present invention.

Claims

1. A detachable balloon device, comprising an outer tube, characterized in that: An inner tube capable of sliding axially along the outer tube is arranged inside the outer tube, a detachable clamping rod with a balloon mounted on the front end is clamped at the front part of the inner tube, the clamping rod can be separated from the inner tube when the inner tube is pushed forward to expose the outer tube, a needle tube is arranged inside the inner tube, and a leak-proof structure is arranged in the channel on the clamping rod for the needle of the needle tube to pass through and connect to the balloon.

2. The detachable balloon device according to claim 1, characterized in that: The front end of the inner tube is provided with a clamping portion extending forward, the clamping portion has a first clamping recess radially recessed to one side, the front end of the clamping portion forms a first clamping convex portion protruding to the other side, the rear part of the clamping rod has a second clamping convex portion matching with the first clamping recess, and the clamping rod is provided with a second clamping recess matching with the first clamping convex portion.

3. The detachable balloon device according to claim 2, characterized in that: The front end of the inner tube is provided with a first hole for the needle to pass through, the second clamping protrusion is provided with a second hole, the first clamping protrusion is provided with a third hole, and the channel on the clamping rod, the third hole, the second hole and the first hole are located on the same axis.

4. The detachable balloon device according to claim 1, 2 or 3, characterized in that: A magnetic attraction structure is arranged between the front part of the inner tube and the clamping rod, and the magnetic attraction structure comprises a first magnetic block arranged at the front part of the inner tube, and a second magnetic block adsorbed to the first magnetic block is arranged on the clamping rod.

5. The detachable balloon device according to claim 1, 2 or 3, characterized in that: The anti-leakage structure includes a first inclined membrane flap, a plurality of which are arranged axially at intervals, and a rear end of which is fixed to one side wall of the channel; a second inclined membrane flap, a plurality of which are arranged axially at intervals, and is offset from the first inclined membrane flap, on the other side wall of the channel; and a rear end of the second inclined membrane flap is fixedly connected to the other side wall of the channel.

6. The detachable balloon device according to claim 5, characterized in that: The distance between the front end of the second inclined membrane flap and the first inclined membrane flap is less than 0.5 mm.

7. The detachable balloon device according to claim 1, characterized in that: The outer periphery of the front end of the outer tube is provided with an arc chamfer, and the rear end of the outer tube has a radially protruding holding portion; the rear end of the inner tube passes through the outer tube and is provided with a pushing portion.

8. The detachable balloon device according to claim 1, characterized in that: The needle tube is made of PVC material, the needle head of the needle tube is a blunt needle, and the rear end of the needle tube passes through the inner tube and is provided with a joint.

9. The detachable balloon device according to claim 1 or 8, characterized in that: The balloon is made of rubber or latex material, and has a connecting portion wrapped around the outer periphery of the front portion of the clamping rod and sealed and fixed with the clamping rod.

10. A method for using the detachable balloon device according to claim 3 or 6, characterized in that: The following steps are involved: 1) The needle at the front end of the needle tube is a blunt needle, the initial state of the balloon is an empty state, and the front end of the needle is located inside the balloon; 2) After the balloon is pushed to the designated position, the rear end of the needle tube is connected to the injection tube, and liquid or gas is injected into the balloon through the needle of the needle tube; 3) After the balloon is inflated to the desired size, pull the needle tube backwards to separate the needle tip of the needle tube from the clamping rod; 4) Push the inner tube forward or pull the outer tube backward to separate the clamping rod from the outer tube, thus completing the separation of the clamping rod from the inner tube; 5) After the balloon is used, push the inner tube forward to complete the docking of the inner tube and the clamping rod; 6) Pull the inner tube backward or push the outer tube forward to retract the rear part of the clamping rod into the outer tube, and then insert the needle of the needle tube through the clamping rod and into the balloon to complete the discharge of liquid and gas.

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