Quantitative hepatic portal blocker

Abstract

The quantitative hepatic portal blocker comprises a tube body, a blocking belt, a connecting piece, a force measuring piece and an adjusting piece, the connecting piece, the force measuring piece and the adjusting piece are all arranged in the tube body, the connecting piece and the adjusting piece are connected through the force measuring piece, one end of the blocking belt is fixedly connected to the connecting piece, and the other end of the blocking belt is fixedly connected to a port of the tube body; the adjusting piece drives the connecting piece to move by driving the force measuring piece to move, so that the middle part of the blocking belt is tightened after one end of the blocking belt moves; according to the invention, quantitative torsion can be applied to hepatic portal occlusion.

Description

Technical Field

[0001] The invention belongs to the technical field of medical devices, and in particular relates to a quantitative hepatic portal blocker. Background Art

[0002] Currently, surgical resection of the liver, whether laparoscopic or open, requires the use of portal vein blocking technology. This is because the liver section during the operation will cause heavy bleeding due to the blood supply from the portal vein, making the operation difficult. Therefore, in clinical practice, the portal vein (hepatic artery and portal vein) is often temporarily blocked before liver resection is performed.

[0003] At present, the commonly used liver vascular blocking (portal blocking) technology in clinical practice is mainly through catheters, silicone tubes, rubber tubes, etc., or concave-convex tooth hemostatic clamps (commonly known as pugs). There is no blocking device with "quantitative torque" specifically designed for portal blocking. Summary of the invention

[0004] The content of this application is used to introduce concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of this application is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.

[0005] In order to overcome the deficiencies of the prior art, the present invention provides a quantitative hepatic portal blocker.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a quantitative portal vein blocker, comprising a tube body, a blocking band, a connecting piece, a force measuring piece and an adjusting piece, wherein the connecting piece, the force measuring piece and the adjusting piece are all arranged in the tube body, the connecting piece and the adjusting piece are connected through the force measuring piece, one end of the blocking band is fixedly connected to the connecting piece, and the other end is fixedly connected to the port of the tube body; the adjusting piece drives the connecting piece to move by driving the force measuring piece to move, so that after one end of the blocking band moves, the middle part of the blocking band is tightened.

[0007] Furthermore, the connecting piece is a circular plate structure, and the diameter of the connecting piece corresponds to the inner diameter of the tube body.

[0008] Furthermore, the adjusting member is a circular plate structure, and the diameter of the adjusting member corresponds to the inner diameter of the tube body.

[0009] Furthermore, the force measuring piece is a spring, one end of the force measuring piece is fixedly connected to the connecting piece, and the other end of the force measuring piece is fixedly connected to the adjusting piece.

[0010] Furthermore, a driving member is provided on the adjusting member, one end of which passes through the tube body, and the driving member is used to drive the adjusting member to move in the tube body.

[0011] Furthermore, the driving member is a threaded rod, the driving member is rotatably connected to the adjusting member, and one end of the tube body is provided with a threaded hole corresponding to the driving member.

[0012] Furthermore, a first sliding block is provided on the side wall of the adjusting member, and a first sliding groove for the first sliding block to move is provided on the inner wall of the tube body.

[0013] Furthermore, a second sliding block is provided on the side wall of the connecting member, and a second sliding groove for the second sliding block to move is provided on the inner wall of the tube body.

[0014] Furthermore, a first scale is provided on the driving member.

[0015] Furthermore, a through slot for the blocking band to extend out is provided at the bottom of the tube body, and a second scale is provided on the blocking band.

[0016] The invention is beneficial in that it provides a quantitative portal blocker capable of applying quantitative torque to portal block. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The illustrative embodiment drawings and their descriptions of this application are used to explain this application and do not constitute an improper limitation on this application.

[0018] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the components and elements are not necessarily drawn to scale.

[0019] In the attached picture:

[0020] Figure 1 The figure is a schematic diagram of the structure of a quantitative portal obstructor in one embodiment of the present invention.

[0021] Figure 2 for Figure 1 A cross-sectional view of the quantitative portal occluder in the illustrated embodiment.

[0022] Figure 3 for Figure 2 Enlarged view of point A in .

[0023] The meanings of the reference numerals in the figures are as follows:

[0024] 101. Tube body; 102. Blocking belt; 103. Driving member; 104. Connecting member; 1041. Second slider; 105. Adjusting member; 1051. First slider; 106. Force measuring member. DETAILED DESCRIPTION

[0025] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.

[0026] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.

[0027] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0028] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0029] The names of the messages or information exchanged between multiple devices in the embodiments of the present disclosure are only used for illustrative purposes and are not used to limit the scope of these messages or information.

[0030] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0031] like Figure 1-3 As shown, a quantitative portal occluder includes a tube body 101, a blocking band 102, a connector 104, a force measuring piece 106 and an adjusting piece 105. The inner diameter of the tube body 101 is preferably 5 mm; the connector 104, the force measuring piece 106 and the adjusting piece 105 are all arranged in the tube body 101, the connector 104 and the adjusting piece 105 are connected through the force measuring piece 106, one end of the blocking band 102 is fixedly connected to the connector 104, and the other end is fixedly connected to the end of the tube body 101; the adjusting piece 105 drives the connector 104 to move by driving the force measuring piece 106 to move, so that the middle part of the blocking band 102 is tightened after one end of the blocking band 102 moves.

[0032] Specifically, the connecting member 104 is a circular plate structure, and the diameter of the connecting member 104 corresponds to the inner diameter of the tube body 101 ; the adjusting member 105 is a circular plate structure, and the diameter of the adjusting member 105 corresponds to the inner diameter of the tube body 101 .

[0033] The force measuring member 106 is a spring, one end of which is fixedly connected to the connecting member 104 , and the other end of which is fixedly connected to the adjusting member 105 .

[0034] The adjusting member 105 is provided with a driving member 103 . One end of the driving member 103 passes through the tube body 101 . The driving member 103 is used to drive the adjusting member 105 to move in the tube body 101 .

[0035] More specifically, the driving member 103 is a threaded rod, which is rotatably connected to the adjusting member 105. A threaded hole corresponding to the driving member 103 is provided at one end of the tube body 101, and a pull ring is provided on the top of the driving member 103 to facilitate the rotation of the driving member 103. The self-locking function of the threaded rod and the threaded hole can be used to conveniently fix the blocking belt 102, making the use of the portal blocker more convenient.

[0036] A first slider 1051 is provided on the side wall of the adjusting member 105, and a first slide groove for movement of the first slider 1051 is provided on the inner wall of the tube body 101; a second slider 1041 is provided on the side wall of the connecting member 104, and a second slide groove for movement of the second slider 1041 is provided on the inner wall of the tube body 101; the cooperation of the slider and the slide groove guides the adjusting member 105 and the connecting member 104, ensuring that the adjusting member 105 and the connecting member 104 can move stably in the tube body 101.

[0037] The driving member 103 is provided with a first scale; the bottom of the tube body 101 is provided with a through slot for the blocking band 102 to extend, and the blocking band 102 is provided with a second scale; the length of the top of the driving member 103 extending from the tube body 101 is defined as a1, and the length of the blocking band 102 extending from the through slot is defined as a2. At the same time, the elastic coefficient k of the force measuring member 106 is obtained, that is, the torque F can be calculated. The specific calculation method is:

[0038] (a1+a2)k=F.

[0039] The present application can evaluate the effect of portal blockage by using the torque corresponding to the degree of spring stretching combined with the portal blockage effect, and can even experiment with the difference between complete blockage and partial blockage, such as 70% blockage (the method evaluation can use B-ultrasound to detect 70% blockage of portal blood vessel flow), and then make further in-depth comparisons.

[0040] The above descriptions are only some preferred embodiments of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by a specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the above-mentioned inventive concept. For example, the above-mentioned features are replaced with the technical features with similar functions disclosed in the embodiments of the present disclosure (but not limited to) and the technical solutions formed.

Claims

1. A quantitative hepatic portal blocker, characterized in that: It includes a tube body, a blocking belt, a connecting piece, a force measuring piece and an adjusting piece, wherein the connecting piece, the force measuring piece and the adjusting piece are all arranged in the tube body, the connecting piece and the adjusting piece are connected through the force measuring piece, one end of the blocking belt is fixedly connected to the connecting piece, and the other end is fixedly connected to the tube body port; the adjusting piece drives the connecting piece to move by driving the force measuring piece to move, so that the middle part of the blocking belt is tightened after one end of the blocking belt moves.

2. The quantitative portal occluder according to claim 1, characterized in that: The connecting piece is a circular plate structure, and the diameter of the connecting piece corresponds to the inner diameter of the tube body.

3. The quantitative portal occluder according to claim 1, characterized in that: The adjusting member is a circular plate structure, and the diameter of the adjusting member corresponds to the inner diameter of the tube body.

4. The quantitative portal occluder according to claim 1, characterized in that: The force measuring piece is a spring, one end of which is fixedly connected to the connecting piece, and the other end of which is fixedly connected to the adjusting piece.

5. The quantitative portal occluder according to claim 1, characterized in that: The adjusting member is provided with a driving member, one end of which passes through the tube body, and the driving member is used for driving the adjusting member to move in the tube body.

6. The quantitative hepatic portal occluder according to claim 5, characterized in that: The driving member is a threaded rod, the driving member is rotatably connected to the adjusting member, and one end of the tube body is provided with a threaded hole corresponding to the driving member.

7. The quantitative hepatic portal occluder according to claim 6, characterized in that: A first sliding block is disposed on the side wall of the adjusting member, and a first sliding groove for the first sliding block to move is disposed on the inner wall of the tube body.

8. The quantitative hepatic portal occluder according to claim 6, characterized in that: A second sliding block is disposed on the side wall of the connecting member, and a second sliding groove for the second sliding block to move is disposed on the inner wall of the tube body.

9. The quantitative portal occluder according to claim 5, characterized in that: The driving member is provided with a first scale.

10. The quantitative hepatic portal occluder according to claim 1, characterized in that: A through slot for the blocking band to extend out is provided at the bottom of the tube body, and a second scale is provided on the blocking band.

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