Double-balloon puncture outfit

Abstract

The double-balloon puncture outfit comprises a sheath tube and a balloon group, the sheath tube comprises a hard tube and a flexible tube sleeved outside the hard tube, a front channel arranged along the axial direction is arranged in the hard tube, and two medium channels are arranged on the tube wall of the flexible tube along the axial direction; the balloon group comprises two balloons, the two balloons are fixedly arranged at the front end of the sheath tube, the balloons are communicated with the corresponding medium channels respectively, and media are injected into the balloons through the medium channels so that the balloons can be expanded. The discomfortableness of a patient is reduced under the condition that the rigidity of the instrument channel is guaranteed, and the phenomenon that the instrument channel is shifted in the operation process can be avoided.

Description

Technical Field

[0001] This utility model relates to a double balloon puncture device, belonging to the field of medical device technology. Background Technology

[0002] Currently, balloon puncture devices are surgical instruments inserted into natural cavities (anorectal or urethral) to create instrument channels. Chinese patent CN221963697U discloses a balloon puncture device in which the puncture tube is directly placed on the puncture seat. Although it has a certain rigidity, since the puncture tube is mostly made of rigid materials, it causes a certain foreign body sensation and irritation to the natural cavity when passing through it, which can easily cause discomfort to the patient. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a double balloon trocar that not only reduces patient discomfort while ensuring the rigidity of the instrument channel, but also ensures that the instrument channel will not shift during the operation.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a double-balloon puncture device, comprising:

[0005] The sheath includes a rigid tube and a flexible tube sleeved outside the rigid tube. The rigid tube has a front channel arranged along the axial direction, and the flexible tube has two medium channels arranged along the axial direction on its wall.

[0006] The balloon assembly includes two balloons, which are fixedly disposed at the front end of the sheath. Each balloon is connected to a corresponding medium channel to inject a medium into the balloon and inflate it.

[0007] Furthermore, the rigid tube is made of stainless steel;

[0008] And / or the hose is made of silicone.

[0009] Furthermore, in order to ensure that the balloon can adhere tightly to the tubing when no medium is injected, the balloon is made of silicone.

[0010] Furthermore, to facilitate the insertion of the dual-balloon trocar into the human body, the front end of the tubing is provided with an arc-shaped guide head;

[0011] Furthermore, a one-way valve is connected to the rear end of the medium channel.

[0012] Furthermore, in order to enable the dual-balloon puncture device to enter the human body smoothly and painlessly, the outer wall of the balloon and / or the outer wall of the tubing are provided with a super-slippery hydrophilic coating.

[0013] Furthermore, the dual-balloon trocar also includes a fixation component, the rear end of the sheath is connected to the fixation component, the fixation component has a rear channel, and the rear channel is connected to the front channel to form an instrument channel.

[0014] Furthermore, the fixing assembly includes a support and a sheath cap, the support being connected to the rear end of the sheath tube, and the sheath cap being connected to the support.

[0015] Furthermore, the dual-balloon trocar also includes a rod adapted to pass through an instrument channel. After the rod is inserted into the instrument channel, its front end extends out of the instrument channel.

[0016] Furthermore, the rod includes a piercing rod and / or a guide rod.

[0017] Furthermore, the rear end of the rod is provided with a connecting seat, and a locking structure is provided between the connecting seat and the fixing component to lock the connecting seat and the fixing component after the rod is inserted into the instrument channel.

[0018] Furthermore, in order to prevent abdominal gas leakage while ensuring that the instruments can enter and exit smoothly, the fixation assembly is equipped with an air-blocking sealing valve for sealing the instrument passage.

[0019] After adopting the above technical solution, this utility model has the following beneficial effects:

[0020] (1) Using double balloons can effectively clamp the bladder wall tightly, ensuring that the instrument channel position will not move during the operation;

[0021] (2) The balloon is made of silicone material, which allows it to adhere tightly to the tubing when no medium is injected, without the wrinkling phenomenon that occurs with PVC balloons, making it easier to enter the human body; at the same time, the silicone balloon and the silicone tubing are easy to bond firmly, effectively solving the balloon bonding problem.

[0022] (4) The balloon and tubing are coated with an ultra-slippery hydrophilic coating, which allows them to enter the human body smoothly and painlessly;

[0023] (5) The front end of the flexible tube is equipped with an arc guide head to facilitate the insertion of the instrument into the human body;

[0024] (6) The sheath is made of thin-walled stainless steel tube with a flexible tube on the outside, which can ensure the rigidity of the instrument channel and the accuracy of the tube diameter. At the same time, by setting two media channels on the flexible tube, gas or liquid can be smoothly injected into the balloon through the one-way valve.

[0025] (7) An air-blocking sealing valve is installed in the instrument channel. The air-blocking sealing valve can be passed through by the puncture rod and the guide rod. Under the premise of ensuring that the instrument can enter and exit smoothly, the leakage of abdominal gas will be avoided. Attached Figure Description

[0026] Figure 1 This is a perspective view of the double-balloon trocar of this utility model in the insertion state;

[0027] Figure 2 This is a perspective view of the double-balloon puncture device of this utility model in the puncture state.

[0028] Figure 3 This is a diagram showing the working state of the double-balloon trocar of this utility model;

[0029] Figure 4 This is a cross-sectional view of the front end of the double balloon trocar of this utility model;

[0030] Figure 5 This is a perspective view of the puncture rod of this utility model;

[0031] Figure 6 This is a perspective view of the guide rod of this utility model;

[0032] Figure 7 This is a cross-sectional view of the connection between the connector and the fixing assembly of this utility model; wherein,

[0033] 1. Sheath; 11. Rigid tube; 12. Flexible tube; 11a. Front channel; 12a. Media channel; 12b. Arc-shaped guide head; 2. Balloon; 3. One-way valve; 4. Fixing assembly; 41. Rear channel; 42. Support; 43. Sheath cap; 44. Hook groove; 5. Puncture rod; 6. Guide rod; 7. Connecting seat; 71. Hook. Detailed Implementation

[0034] To make the contents of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0035] like Figures 1-7 As shown, a dual-balloon trocar includes:

[0036] Sheath 1, which includes a rigid tube 11 and a flexible tube 12 sleeved outside the rigid tube 11. The rigid tube 11 has a front channel 11a arranged along the axial direction, and the flexible tube 12 has two medium channels 12a arranged along the axial direction on the tube wall.

[0037] The balloon assembly includes two balloons 2, which are fixedly installed axially at the front end of the sheath 1. Each balloon 2 is connected to a corresponding medium channel 12a to inject medium into the balloon 2 through the medium channel 12a to inflate it.

[0038] Specifically, in this embodiment, the rigid tube 11 can be made of stainless steel;

[0039] The hose 12 can be made of silicone.

[0040] Specifically, the balloon 2 can be made of silicone, so that when the balloon 2 is not injected with a medium, it can fit tightly on the tubing 12 without the wrinkling phenomenon that occurs when the balloon 2 is made of PVC, making it easier to enter the human body; at the same time, the silicone balloon 2 and the silicone tubing 12 can be firmly bonded together, effectively solving the problem of balloon 2 bonding.

[0041] In this embodiment, two balloons 2 can effectively clamp the bladder wall tightly, ensuring that the instrument channel position will not move during the operation; and the sheath 1 is made of thin-walled stainless steel tube with a flexible tube 12 on the outside, which can ensure the rigidity of the instrument channel and the accuracy of the tube diameter. At the same time, by setting two media channels 12a on the flexible tube 12, gas or liquid can be smoothly injected into the balloon 2 through the one-way valve 3.

[0042] Specifically, such as Figures 1-4 As shown, in order to facilitate the entry of the double balloon puncture device into the human body, the front end of the tubing 12 is provided with an arc-shaped guide head 12b.

[0043] Specifically, such as Figure 4 As shown, a one-way valve 3 is connected to the rear end of the medium channel 12a.

[0044] Specifically, in order for the dual-balloon puncture device to enter the human body smoothly and painlessly, the outer wall of the balloon 2 and the outer wall of the tubing 12 are provided with a super-slippery hydrophilic coating.

[0045] Specifically, such as Figures 1-4 As shown, the double balloon trocar may also include a fixation component 4, the rear end of the sheath 1 is connected to the fixation component 4, the fixation component 4 is provided with a rear channel 41, the rear channel 41 is connected to the front channel 11a to form an instrument channel.

[0046] Specifically, such as Figure 7 As shown, the fixing component 4 includes a support 42 and a sheath cap 43. The support 42 is connected to the rear end of the sheath tube 1, and the sheath cap 43 is connected to the support 42.

[0047] Specifically, such as Figures 1-7 As shown, the double balloon trocar also includes a rod, which is adapted to pass through the instrument channel. After the rod is inserted into the instrument channel, the front end of the rod extends out of the instrument channel.

[0048] Specifically, such as Figures 1-7 As shown, the rod may include a puncture rod 5 and a guide rod 6.

[0049] Specifically, such as Figure 7 As shown, the rear end of the rod is provided with a connecting seat 7. A locking structure is provided between the connecting seat 7 and the fixing component 4 to lock the connecting seat 7 and the fixing component 4 after the rod is inserted into the instrument channel. The locking structure can be a structure including a hook 71 and a hook groove 44. The hook 71 is engaged with the hook groove 44. In this embodiment, the hook 71 is provided on the connecting seat 7, and the hook groove 44 is provided on the fixing component 4, specifically on the sheath cap 43. Of course, in some embodiments, the hook 71 can also be provided on the sheath cap 43, and the hook groove 44 can be provided on the connecting seat 7. The number of hooks 71 and corresponding hook grooves 44 is not limited.

[0050] Specifically, the fixation component 4 is equipped with a gas-blocking sealing valve for sealing the instrument channel. The gas-blocking sealing valve can be passed through by the puncture rod 5 and the guide rod 6, so as to avoid the leakage of abdominal gas while ensuring that the instrument can enter and exit smoothly.

[0051] The procedure for using this novel double-balloon trocar is as follows: Insert the guide rod 6 into the sheath 1, as... Figure 1 In the insertion state, the instrument is inserted into the body along the ureter until it reaches the bladder. At this point, the guide rod 6 is withdrawn from the body (sheath 1 remains stationary), and the puncture rod 5 is inserted into sheath 1. Figure 2 In the puncture state, the bladder is punctured by advancing the instrument, allowing the head of the sheath 1 to smoothly enter the abdominal cavity. Gas or liquid is injected into the balloon 2 at the far end through the one-way valve 3. The position is adjusted to ensure that the balloon 2 is tightly attached to the inner side of the bladder wall. Then, gas or liquid is injected into the second balloon 2 through the one-way valve 3 to ensure that the balloon 2 is tightly attached to the outer side of the bladder wall. At this time, the two balloons 2 tightly clamp the bladder wall, forming a reliable surgical instrument entry channel. After the operation, the gas or liquid in the balloon 2 is discharged, and the sheath 1 can be easily withdrawn from the body.

[0052] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of this utility model. It should be understood that the above descriptions are merely specific embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A double-balloon trocar, characterized in that, include: Sheath (1), the sheath (1) includes a rigid tube (11) and a flexible tube (12) sleeved outside the rigid tube (11). The rigid tube (11) has a front channel (11a) arranged along the axial direction, and the flexible tube (12) has two medium channels (12a) arranged along the axial direction on the tube wall. The balloon assembly includes two balloons (2), which are fixedly disposed at the front end of the sheath (1). The balloons (2) are respectively connected to the corresponding medium channels (12a) so as to inject medium into the balloons (2) through the medium channels (12a) to inflate them.

2. The double-balloon trocar according to claim 1, characterized in that, The rigid tube (11) is made of stainless steel; And / or the hose (12) is made of silicone; And / or the balloon (2) is made of silicone.

3. The double-balloon trocar according to claim 1, characterized in that, The front end of the hose (12) is provided with an arc-shaped guide head (12b). And / or a check valve (3) is connected to the rear end of the medium channel (12a).

4. The double-balloon trocar according to claim 1, characterized in that, The outer wall of the balloon (2) and / or the outer wall of the hose (12) are provided with a super-slippery hydrophilic coating.

5. The double-balloon trocar according to claim 1, characterized in that, It also includes a support (42) assembly, the rear end of the sheath (1) is connected to the support (42) assembly, the support (42) assembly is provided with a rear channel (41), the rear channel (41) is connected to the front channel (11a) to form an instrument channel.

6. The double-balloon trocar according to claim 5, characterized in that, The support (42) assembly includes a support (42) and a sheath cap (43), the support (42) being connected to the rear end of the sheath (1), and the sheath cap (43) being connected to the support (42).

7. The double-balloon trocar according to claim 5, characterized in that, It also includes a rod adapted to pass through an instrument channel, wherein after the rod is inserted into the instrument channel, the front end of the rod extends out of the instrument channel.

8. The double-balloon trocar according to claim 7, characterized in that, The rods include a piercing rod (5) and / or a guide rod (6).

9. The double-balloon trocar according to claim 7, characterized in that, The rear end of the rod is provided with a connecting seat (7), and a locking structure is provided between the connecting seat (7) and the support (42) assembly to lock the connecting seat (7) and the support (42) assembly after the rod is inserted into the instrument channel.

10. The dual-balloon puncture device according to claim 5, characterized in that, The support (42) assembly is provided with an air-blocking sealing valve for sealing the instrument channel.

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