Zhengshi porta hepatic occlusion band
Through the clamping loop structure of the long and short arms of the T-shaped long arms and the semicircular traction ring design, the problem of difficult control of the gap length of the liver portal blocking hose in the prior art is solved, and the stability of blood blocking is achieved. Simplification of the surgical process.
Patent Information
- Application Number
- CN202420338960.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-23
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-02-23
AI Technical Summary
When used, the length of the gap is difficult to control when the existing elastic hose for hepatic portal blockade, resulting in loosening of the hose and unable to stabilize and fix it, affecting the effect of hepatic portal blockade.
The long arm and short arm in a T-shaped shape are used as the blocking ends. The end of the long arm is far away from the short arm and passes through the inside of the short arm to form a clamping loop, and the stability of the clamping loop is ensured through the gap between the rubber material and the inner and outer pipe diameters. The control point is provided using a semicircular pulling ring and wire.
It achieves stable blockade of blood in the blood vessels, avoids loosening of the hose, simplifies the surgical process, provides control points, and reduces dependence on specialized tools.
Smart Images
Figure CN222172190U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of medical equipment, in particular to a Zheng's liver portal blocking band. Background Art
[0002] Medical devices are mainly used for the diagnosis, prevention and treatment of diseases, monitoring of patients and relief of pain. Through the use of medical devices, it is also possible to diagnose organ and limb injuries of patients and compensate for the functions of the patient's body. Medical devices include medical equipment and medical consumables. Medical consumables generally refer to infusion sets, intravenous needles, etc.
[0003] Medical devices are widely used in clinical surgery. In clinical liver resection surgery, it is necessary to block the portal vein and control the portal blood flow to reduce intraoperative bleeding, especially in liver surgery where surgical resection is estimated to be very difficult and the amount of intraoperative bleeding is large. There are many types of blockage, including hepatic blood flow blockage, whole liver blood flow blockage, and hepatic vein blockage. Portal blockage allows for a clearer observation of the intrahepatic anatomical structure, which is beneficial for handling intrahepatic bile ducts and blood vessels. It can not only speed up the operation, but also minimize the risks and bleeding during the operation, and reduce the incidence of postoperative liver failure.
[0004] Although portal occlusion has a very good effect on surgical operations, it will affect the blood perfusion in the liver and may cause ischemia-reperfusion injury to liver cells, especially for patients with underlying liver diseases, such as chronic hepatitis and cirrhosis. If the occlusion time is long, the chance of postoperative liver failure will increase significantly. Normal liver occlusion time is relatively safe within 20-30 minutes, but for patients with cirrhosis, the occlusion time needs to be shortened as much as possible. If the operation cannot be completed in one occlusion, it is necessary to consider multiple interval occlusions.
[0005] In the prior art, an elastic hose is provided. When in use, a notch is cut in the hose with a knife blade so that the length of the notch is smaller than the diameter of the hose, so that the end of the hose away from the notch is passed through the notch and the target position is tied. The friction between the hose and the notch is increased by the elasticity of the hose insertion section, and the hose can be fixed after being tied without the intervention of a fixing component. However, it is not easy to control the length of the notch cut in the elastic band with a knife blade. The notch length may be larger than the diameter of the hose, resulting in loosening of one end of the hose clamped by the notch, and it is not easy to maintain the original size of the clamping ring of the hose passing through the notch. Utility Model Content
[0006] In order to overcome the shortcomings of the existing elastic hose for blocking the portal vein, when using it, it is necessary to use a knife blade to cut an "I"-shaped notch on the hose, but the length of the notch is not easy to control, and the length of the notch is likely to be greater than the diameter of the hose, resulting in one end of the hose loosening after passing through the notch, making it difficult to achieve a fixing effect, and it is not easy to make the clamping ring of one end of the hose passing through the notch maintain its original size. The embodiment of the present application provides Zheng's portal vein blocking belt, which is provided with a T-shaped long arm and a short arm as blocking ends. When the end of the long arm away from the short arm passes through the inside of the short arm, the clamping ring formed by the long arm and the short arm can be stably clamped on the outside of the blood vessel to block the blood circulation in the blood vessel. The long arm and the short arm themselves are elastic, and there is a difference in the inner and outer diameters, so that the outer wall of the long arm can fit closely with the inner wall of the short arm to ensure that the size of the formed clamping ring remains unchanged.
[0007] The technical solution adopted by the embodiment of the present application to solve the technical problem is:
[0008] Zheng's liver portal blocking band, comprising a traction end and a blocking end, wherein the traction end is arranged on the blocking end;
[0009] The blocking end is used for porta hepatis blocking. After the blocking end is connected to the traction end, the traction end is used to provide a control support point for the blocking end.
[0010] In a possible implementation, the blocking end is divided into a movable portion and a supporting portion, and both the movable portion and the supporting portion can be bent.
[0011] In a possible implementation manner, the movable portion of the blocking end passes through the interior of the supporting portion, so that the blocking end forms a closed loop.
[0012] In a possible implementation, the blocking end includes a long arm and a short arm, the short arm is arranged at one end of the long arm, and the long arm and the short arm are integrally formed and are T-shaped.
[0013] In a possible implementation, the long arm and the short arm are both hollow sleeves, and one end of the long arm away from the short arm passes through the interior of the short arm to form a clamping ring between the long arm and the short arm.
[0014] In a possible implementation, the long arm and the short arm are both made of rubber material, the inner diameter and the outer diameter of the long arm and the short arm are the same, and after one end of the long arm passes through the interior of the short arm, the outer wall of the long arm fits with the inner wall of the short arm.
[0015] In a possible implementation, the traction end includes a traction ring, which is arranged in a semicircular shape, and two ends of the traction ring are respectively connected to surfaces at two ends of the short arm.
[0016] In a possible implementation, the traction ring is made of rubber material, and the traction ring is located on the opposite side of the long arm.
[0017] In a possible implementation, the traction end further includes a silk thread, one end of which passes through the interior of the short arm and is tied with the other end on the outside of the short arm to connect the two ends of the short arm to form a closed loop.
[0018] The beneficial effects of this application are:
[0019] First, in this scheme, by setting a T-shaped long arm and a short arm as the blocking end, when the end of the long arm away from the short arm passes through the inside of the short arm, the clamping ring formed by the long arm and the short arm can be stably clamped on the outside of the blood vessel to block the blood circulation in the blood vessel. The long arm and the short arm themselves have elasticity, and there is a difference in the inner and outer diameters, so that the outer wall of the long arm and the inner wall of the short arm can be closely fitted, preventing the long arm from sliding out of the inside of the short arm, ensuring that the size of the formed clamping ring remains unchanged;
[0020] Second, in this solution, a semicircular traction ring is provided so that the two ends of the traction ring are respectively fixed to the surfaces of the two ends of the short arm, thereby providing a control point for the doctor during the portal surgery without the need to replace special tools, which is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0022] Figure 2 This is a schematic diagram of the structure of the utility model when the long arm passes through the interior of the short arm;
[0023] Figure 3 For this utility model Figure 2 Enlarged schematic diagram of part A in the middle.
[0024] Description of the drawings: 1. Long arm; 2. Short arm; 3. Traction ring; 4. Clamping ring. DETAILED DESCRIPTION
[0025] The technical solution in the embodiment of the present application is to solve the problems of the above-mentioned background technology, and the overall idea is as follows:
[0026] Embodiment 1:
[0027] This embodiment introduces the specific structure of Zheng's liver portal blocking band. Figure 1-Figure 3 As shown, it includes a traction end and a blocking end;
[0028] The blocking end is divided into an active part and a supporting part, and both the active part and the supporting part can be bent. When the active part of the blocking end passes through the inside of the supporting part, the blocking end forms a closed loop, similar to tightening a cable tie, so that the blocking end can perform hepatic portal blocking. After the blocking end is connected to the traction end, it can provide a control support point for the blocking end, so that the doctor can control the blocking end to drive the blood vessel movement.
[0029] The blocking end includes a long arm 1 and a short arm 2, both of which are hollow sleeves, and the traction end includes a traction ring 3;
[0030] By dividing the blocking end into a long arm 1 as a movable part and a short arm 2 for supporting work, when the end of the long arm 1 away from the short arm 2 passes through the inside of the short arm 2, a clamping ring 4 can be formed between the long arm 1 and the short arm 2, and the blood vessel is located inside the clamping ring 4. After the long arm 1 and the short arm 2 cooperate to shrink the clamping ring 4, the blood flow in the part of the blood vessel can be blocked, thereby performing the porta hepatis blocking work;
[0031] Meanwhile, the short arm 2 is arranged at one end of the long arm 1, and the long arm 1 and the short arm 2 are integrally formed and are T-shaped. By making the long arm 1 perpendicular to the outer surface of the short arm 2, it is convenient to bypass one end of the long arm 1 around the blood vessel and pass from one end of the short arm 2 through the inside of the short arm 2 to the other end;
[0032] Secondly, in order to prevent the long arm 1 from sliding without external force after passing through the interior of the short arm 2, so that the clamping ring 4 formed by the long arm 1 and the short arm 2 gradually becomes larger, the long arm 1 and the short arm 2 are both made of rubber material, and the inner diameter and outer diameter of the long arm 1 and the short arm 2 are ensured to be the same. When one end of the long arm 1 passes through the interior of the short arm 2, the elasticity of the long arm 1 and the short arm 2 can be used to make the outer wall of the long arm 1 fit closely with the inner wall of the short arm 2, thereby increasing the friction between the outer wall of the long arm 1 and the inner wall of the short arm 2, and effectively fixing the long arm 1 and the short arm 2;
[0033] Furthermore, by setting the traction ring 3 as the traction end on the short arm 2 at the blocking end, and the traction ring 3 is set in a semicircular shape and is made of rubber material, a support point can be provided for the doctor during the operation, and the short arm 2 connected to the traction ring 3 can be pulled without replacing special tools;
[0034] At the same time, by arranging the traction ring 3 on the opposite side of the long arm 1 , when the doctor drives the blood vessel clamped by the clamping ring 4 through the traction ring 3 , the traction ring 3 can be prevented from blocking the blood vessel in the clamping ring 4 .
[0035] By adopting the above technical solution:
[0036] The above design sets the T-shaped long arm 1 and the short arm 2 as the blocking end. When the end of the long arm 1 away from the short arm 2 passes through the inside of the short arm 2, the elastic properties of the rubber material of the long arm 1 and the short arm 2 and the difference between the inner and outer diameters of the long arm 1 and the short arm 2 can be used to make the outer wall of the long arm 1 fit closely with the inner wall of the short arm 2, thereby preventing the long arm 1 from automatically sliding out of the inside of the short arm 2 without external force, so that the clamping ring 4 formed by the long arm 1 and the short arm 2 can stably clamp the blood vessel and block the blood circulation in the blood vessel, thereby solving the problem that the existing elastic hose needs to be cut into an "I" notch on the hose with a knife blade when in use, and the length of the notch is not easy to control, and it is easy for the notch length to be greater than the diameter of the hose, resulting in one end of the hose being loose after passing through the notch;
[0037] At the same time, by setting a semicircular traction ring 3, the two ends of the traction ring 3 are respectively fixed to the surfaces of the two ends of the short arm 2, and the traction ring 3 is located on the opposite side of the long arm 1, so that during the portal surgery, the doctor's left hand can be used for traction, and separation forceps, suction devices, etc. can be used to assist in traction. There is no need to deliberately replace special instruments, which is convenient for providing control points for doctors, and will not block the blood vessels clamped by the clamping ring 4, so that the operation is carried out in an orderly and efficient manner.
[0038] Embodiment 2:
[0039] Based on Example 1, this example introduces an alternative structure of the traction end. The traction end can also be a silk thread. After one end of the silk thread passes through the inside of the short arm 2, the two ends of the silk thread can be tied into a knot on the outside of the short arm 2, so that the two ends of the short arm 2 are connected to form a closed loop, which can provide a support point for the doctor to control the long arm 1 and the short arm 2.
[0040] The specific steps are as follows:
[0041] S1, insert the laparoscopic separation forceps from one end of the short arm 2 through the inside and out from the other end into the abdominal cavity;
[0042] S2. After the long arm is passed around the blood vessel, the laparoscopic instrument in the left hand fixes the traction ring 3, and the laparoscopic separation forceps in the right hand fix the end of the long arm 1 away from the short arm 2, and pull it out from the inside of the short arm 2. By taking advantage of the difference in the inner and outer diameters of the long arm 1 and the short arm 2 and the elasticity of the short arm 2 itself, the connection part of the long arm 1 and the short arm 2 forms a clamping ring 4;
[0043] S3. Continue to pull one end of the long arm 1 to reduce the size of the clamp ring 4 and tighten the blood vessels at the liver hilum.
[0044] By adopting the above technical solution:
[0045] The above design connects the two ends of the semicircular traction ring 3 on the surface of the two ends of the short arm 2. In the actual production process, due to its simple structure, it can be quickly produced and has high actual use efficiency. It is also convenient to use a silk thread passing through the inside of the short arm 2 to replace the traction ring 3 to provide a pulling support point.
[0046] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.
Claims
1. Zheng's liver portal blocking band, It is characterized in that include: Blocking end; A traction end, which is disposed on the blocking end; The blocking end is used for porta hepatis blocking. After the blocking end is connected to the traction end, the traction end is used to provide a control support point for the blocking end.
2. The Zheng's liver portal blocking band as claimed in claim 1, Features: The blocking end is divided into a movable part and a supporting part, and both the movable part and the supporting part can be bent.
3. The Zheng's liver portal blocking band as claimed in claim 2, Features: The movable part of the blocking end passes through the interior of the supporting part, so that the blocking end forms a closed loop.
4. The Zheng's liver portal blocking band as claimed in claim 1, Features: The blocking end comprises a long arm (1) and a short arm (2), wherein the short arm (2) is arranged at one end of the long arm (1), and the long arm (1) and the short arm (2) are integrally formed and are T-shaped.
5. The Zheng's liver portal blocking band as claimed in claim 4, Features: The long arm (1) and the short arm (2) are both hollow sleeves, and one end of the long arm (1) away from the short arm (2) passes through the interior of the short arm (2), forming a clamping ring (4) between the long arm (1) and the short arm (2).
6. The Zheng's liver portal blocking band as claimed in claim 4, Features: The long arm (1) and the short arm (2) are both made of rubber material, and the inner diameter and outer diameter of the long arm (1) and the short arm (2) are the same; After one end of the long arm (1) passes through the interior of the short arm (2), the outer wall of the long arm (1) fits into the inner wall of the short arm (2).
7. The Zheng's liver portal blocking band as claimed in claim 3, Features: The traction end comprises a traction ring (3), and the traction ring (3) is arranged in a semicircular shape; Wherein, the two ends of the traction ring (3) are respectively connected to the surfaces of the two ends of the short arm (2).
8. The Zheng's liver portal blocking band as claimed in claim 7, Features: The traction ring (3) is made of rubber material, and the traction ring (3) is located on the opposite side of the long arm (1).
9. The Zheng's liver portal blocking band as claimed in claim 4, Features: The traction end also includes a silk thread, one end of which passes through the interior of the short arm (2) and is tied with the other end on the outside of the short arm (2) to form a knot, so that the two ends of the short arm (2) are connected to form a closed loop.