Leakage-proof negative pressure catheter used after rectal cancer operation
By designing a negative pressure catheter after surgery for rectal cancer including catheter, balloon and negative pressure cannula, the problem that traditional fecal collection devices are difficult to prevent wound infection is solved, and effective protection of wounds and stability of anastomosis is achieved. .
Patent Information
- Application Number
- CN202421030856.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-13
- Publication Date
- 2025-02-21
- Estimated Expiration
- 2034-05-13
AI Technical Summary
After rectal cancer surgery, traditional fecal collection devices are difficult to prevent infection at the wound suture, especially because the anastomosis is prone to fecal infection.
A negative pressure catheter for leak prevention after rectal cancer is designed, including a catheter, a first balloon, a second balloon, a support tube, a negative pressure cannula, a trachea and a negative pressure source. Negative pressure adsorption of the wound suture is performed through a negative pressure cannula, and the protective effect is improved by using the funnel-shaped first balloon and the second balloon.
Effectively prevent feces from contacting wounds, reduce the risk of infection, stabilize the anastomosis, prevent loose lateral leakage, and speed up the recovery of the anastomosis.
Smart Images
Figure CN222510570U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of medical supplies, in particular to the field of feces collection instruments, and specifically refers to a leak-proof negative pressure catheter after rectal cancer surgery. Background Art
[0002] Low rectal cancer refers to rectal cancer that is less than 5 cm away from the anal verge. In current surgical procedures, it can be treated by cutting and removing the cancerous segment of the rectum and then suturing the rectum to the anus.
[0003] However, the anastomosis after the rectum and anus are sutured is easily infected by feces, and traditional medical feces collection instruments are difficult to prevent infection. Utility Model Content
[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a leakage-proof negative pressure catheter after rectal cancer surgery which has the advantages of simple structure, easy operation and wide application range.
[0005] In order to achieve the above-mentioned purpose, the utility model provides a leak-proof negative pressure catheter after rectal cancer surgery as follows:
[0006] The leak-proof negative pressure catheter after rectal cancer surgery has the following main features: the negative pressure catheter comprises a catheter, a first balloon, a second balloon, a support tube, a negative pressure sleeve, a trachea and a negative pressure source; the first balloon and the second balloon are respectively connected to the two ends of the support tube; the catheter passes through the middle of the first balloon and the second balloon, and the upper end of the catheter is connected to the inside of the first balloon; the negative pressure sleeve is sleeved on the outside of the support tube, a cavity is formed between the negative pressure sleeve and the support tube, the trachea passes through the second balloon and then enters the support tube, and the end is inserted into the first balloon; the connecting tube of the negative pressure source passes through the second balloon and enters the negative pressure sleeve.
[0007] Preferably, the negative pressure catheter further comprises a branch tube, the branch tube is communicated with the trachea, and the branch tube is located in the second balloon.
[0008] Preferably, the negative pressure sleeve is provided with a plurality of adsorption holes.
[0009] Preferably, the interpenetrating joint of the trachea is sealed, and the interpenetrating joint of the negative pressure source is sealed.
[0010] Preferably, the first balloon and the second balloon are closed annular structures.
[0011] Preferably, the first balloon and the second balloon are funnel-shaped.
[0012] The utility model is a postoperative leak-proof negative pressure catheter for rectal cancer, which can drain feces and protect the wound sutures after low-position rectal cancer surgery to prevent infection caused by contact between feces and the wound. The negative pressure sleeve is used to absorb negative pressure at the wound sutures to further achieve a stabilizing effect, prevent loosening and side leakage of the anastomosis, and accelerate the recovery of the anastomosis. The first balloon and the second balloon of the negative pressure catheter are set in a funnel shape to further improve the protection effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a three-dimensional schematic diagram of a leak-proof negative pressure catheter after rectal cancer surgery according to the utility model.
[0014] Figure 2 The utility model is a cross-sectional view of a leak-proof negative pressure catheter for rectal cancer surgery.
[0015] Figure 3 This is a schematic diagram of a leak-proof negative pressure catheter for rectal cancer surgery without a negative pressure sleeve according to the utility model.
[0016] Figure 4 The utility model is a schematic structural diagram of a negative pressure sleeve of a leak-proof negative pressure catheter after rectal cancer surgery.
[0017] Figure 5 The utility model is a schematic diagram of the working state of a leak-proof negative pressure catheter after rectal cancer surgery.
[0018] Reference numerals:
[0019] 1 Catheter
[0020] 2 First Balloon
[0021] 3 Second balloon
[0022] 4 Support tube
[0023] 5 Negative pressure cannula
[0024] 6 Trachea
[0025] 7 Negative pressure source
[0026] 8 branches
[0027] 9 Adsorption holes
[0028] 10. Rectum
[0029] 11. Suture
[0030] 12 Anus DETAILED DESCRIPTION
[0031] In order to more clearly describe the technical content of the present invention, further description is given below in conjunction with specific embodiments.
[0032] The utility model discloses a leak-proof negative pressure catheter for rectal cancer surgery, which comprises a catheter 1, a first balloon 2, a second balloon 3, a support tube 4, a negative pressure sleeve 5, a trachea 6 and a negative pressure source 7. The first balloon 2 and the second balloon 3 are respectively connected to the two ends of the support tube 4, the catheter 1 passes through the middle of the first balloon 2 and the second balloon 3, and the upper end of the catheter 1 is connected to the inside of the first balloon 2, the negative pressure sleeve 5 is sleeved on the outside of the support tube 4, and a cavity is formed between the negative pressure sleeve 5 and the support tube 4, the trachea 6 passes through the second balloon 3 and then enters the support tube 4, and the end is inserted into the first balloon 2, and the connecting tube of the negative pressure source 7 passes through the second balloon 3 and enters the negative pressure sleeve 5.
[0033] As a preferred embodiment of the present invention, the negative pressure catheter further comprises a branch tube 8 , which is connected to the trachea 6 and is located in the second balloon 3 .
[0034] As a preferred embodiment of the present utility model, a plurality of adsorption holes 9 are provided on the negative pressure sleeve 5 .
[0035] As a preferred embodiment of the present utility model, the interpenetrating joint of the trachea 6 is sealed, and the interpenetrating joint of the negative pressure source 7 is sealed.
[0036] As a preferred embodiment of the present utility model, the first balloon 2 and the second balloon 3 are closed annular structures.
[0037] As a preferred embodiment of the present utility model, the first balloon 2 and the second balloon 3 are funnel-shaped.
[0038] In a specific embodiment of the utility model, the two ends of the support tube 4 are respectively connected to the first balloon 2 and the second balloon 3, the first balloon 2 and the second balloon 3 are closed annular structures, the catheter 1 passes through the middle of the first balloon 2 and the second balloon 3, and the upper end of the catheter 1 is connected to the inside of the first balloon 2, the negative pressure sleeve 5 is sleeved on the outside of the support tube 4, and a plurality of adsorption holes 9 are provided on the negative pressure sleeve 5, the trachea 6 passes through the second balloon 3 and enters the support tube 4, and finally is inserted into the first balloon 2, and is sealed at the interpenetration joint, the branch tube 8 is connected to the trachea 6, and the branch tube 8 is in the second balloon 3, the connecting tube of the negative pressure source 7 passes through the second balloon 3 and enters the negative pressure sleeve 5, and is sealed at the interpenetration joint, and a cavity is formed between the negative pressure sleeve 5 and the support tube 4. Further, the two balloons are funnel-shaped.
[0039] After the rectum and anus are sutured, in order to avoid infection at the suture site, the first balloon 2 is inserted into the patient's anus at the entry end, so that the negative pressure sleeve 5 is at the wound suture site, and is inflated through the trachea 6. The gas enters from the trachea 6, and the gas discharged from the branch tube 8 inflates the second balloon 3. The trachea 6 continues to inflate the first balloon 2 to expand it, so that the device is clamped at the patient's anus, and the wound suture site is between the first balloon 2 and the second balloon 3. Feces is discharged from the catheter 1, thereby protecting the wound suture site from infection. In addition, the negative pressure source 7 applies pressure to generate negative pressure in the negative pressure sleeve 5, so that the wound suture site is tightly attached to the negative pressure sleeve, stabilizes the site, prevents the site from loosening, and further improves its protective effect.
[0040] The specific implementation scheme of this embodiment can refer to the relevant description in the above embodiment, which will not be repeated here.
[0041] It can be understood that the same or similar parts of the above embodiments can be referenced to each other, and the contents not described in detail in some embodiments can refer to the same or similar contents in other embodiments.
[0042] It should be noted that, in the description of the present invention, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, the meaning of "plurality" refers to at least two.
[0043] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0044] The utility model is a postoperative leak-proof negative pressure catheter for rectal cancer, which can drain feces and protect the wound sutures after low-position rectal cancer surgery to prevent infection caused by contact between feces and the wound. The negative pressure sleeve is used to absorb negative pressure at the wound sutures to further achieve a stabilizing effect, prevent loosening and side leakage of the anastomosis, and accelerate the recovery of the anastomosis. The first balloon and the second balloon of the negative pressure catheter are set in a funnel shape to further improve the protection effect.
[0045] In this specification, the utility model has been described with reference to its specific embodiments. However, it is obvious that various modifications and changes can be made without departing from the spirit and scope of the utility model. Therefore, the description and drawings should be regarded as illustrative rather than restrictive.
Claims
1. A leak-proof negative pressure catheter for rectal cancer surgery, characterized in that: The negative pressure catheter comprises a catheter, a first balloon, a second balloon, a support tube, a negative pressure sleeve, a trachea and a negative pressure source. The first balloon and the second balloon are respectively connected to the two ends of the support tube, the catheter passes through the middle of the first balloon and the second balloon, and the upper end of the catheter is connected to the inside of the first balloon, the negative pressure sleeve is sleeved on the outside of the support tube, and a cavity is formed between the negative pressure sleeve and the support tube. The trachea passes through the second balloon and then enters the support tube, and the end is inserted into the first balloon. The connecting tube of the negative pressure source passes through the second balloon and enters the negative pressure sleeve.
2. The anti-leakage negative pressure catheter after rectal cancer surgery according to claim 1, characterized in that: The negative pressure catheter also includes a branch tube, which is connected to the trachea and is located in the second balloon.
3. The anti-leakage negative pressure catheter after rectal cancer surgery according to claim 1, characterized in that: The negative pressure sleeve is provided with a plurality of adsorption holes.
4. The anti-leakage negative pressure catheter after rectal cancer surgery according to claim 1, characterized in that: The interpenetrating joint of the trachea is sealed, and the interpenetrating joint of the negative pressure source is sealed.
5. The anti-leakage negative pressure catheter after rectal cancer surgery according to claim 1, characterized in that: The first balloon and the second balloon are closed annular structures.
6. The anti-leakage negative pressure catheter after rectal cancer surgery according to claim 1, characterized in that: The first balloon and the second balloon are funnel-shaped.