Blood vessel blood flow control band

Abstract

The invention relates to a blood vessel blood flow control belt which comprises a buckle, a binding belt, a rack and a shell, a motor is arranged in the shell, an output shaft of the motor is spirally connected with the rack through a worm, the tail end of the rack is connected with the binding belt, the tail end of the binding belt extends out of the shell and is provided with the buckle, and a limiting module matched with the buckle is arranged at the outlet end of the shell. A control module is further included, and the motor is electrically connected with the control module. The blood vessel blood flow control belt has the advantages that the blood vessel blood flow control belt is convenient to operate, periodic closure can be conducted on a target blood vessel according to the operation process, the binding belt is made of non-rigid materials, pressure is exerted on the blood vessel in a surrounding mode, and the blood vessel wall is not prone to being damaged.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a blood vessel blood flow control belt. Background Art

[0002] In the field of surgery, especially in procedures targeting tissues or organs with rich blood flow, effectively controlling blood flow in the target vessels to reduce intraoperative bleeding is crucial for ensuring smooth surgical procedures and minimizing the risk of complications. This requirement is particularly prominent in liver resection surgery, as the liver, as the largest solid organ in the human body, has a rich and complex blood supply. Improper intraoperative bleeding control can lead to serious consequences.

[0003] Traditionally, two main methods are commonly used in clinical practice to reduce the risk of bleeding during laparoscopic liver resection: one is to expose the target blood vessels through surgical dissection and then use elastic vascular bands ( Figure 10 The first method is to wrap and fasten the hemostatic forceps around the blood vessel; the second method is to directly clamp the target blood vessel with hemostatic forceps. However, both methods have significant limitations.

[0004] In the context of laparoscopic surgery, the limited operating space makes precise winding and tightening of the vascular banding challenging. Furthermore, elastic vascular bands are single-use and, once wrapped, can only be removed through destructive disassembly, which increases the complexity and risk of the procedure. Especially when repeated cyclical recanalization of the target vessel is required to maintain liver viability, multiple winding and unwinding of the vascular band not only increases the workload of medical staff but can also increase the risk of vascular damage or bleeding due to improper operation.

[0005] Although the hemostatic clamping method is relatively straightforward to operate, the hemostatic clamp is made of rigid stainless steel. It directly clamps the target blood vessel and applies pressure from both sides of the blood vessel, causing the blood vessel to be clamped and potentially causing damage to the blood vessel wall, affecting postoperative blood vessel repair and functional recovery. In addition, for cases with poor vascular conditions or fragile blood vessel walls, the clamping method may increase the risk of vascular rupture. Summary of the Invention

[0006] The purpose of the present invention is to provide a blood vessel blood flow control belt to solve the above problems existing in the prior art.

[0007] The technical solution of the present invention to solve the above technical problems is as follows:

[0008] A blood vessel blood flow control belt includes a buckle, a cable tie, a rack and a shell. A motor is arranged in the shell. The output shaft of the motor is spirally connected to the rack through a worm. The end of the rack is connected to the cable tie. The end of the cable tie extends to the outside of the shell and is provided with a buckle. The outlet end of the shell is provided with a limit module matching the buckle. The shell also includes a control module. The motor is electrically connected to the control module.

[0009] The beneficial effects of the present invention are: the blood flow control belt is easy to operate, can periodically intercept the target blood vessel according to the progress of the operation, and the belt is made of non-rigid material, which surrounds the blood vessel and applies pressure, and is not likely to cause damage to the blood vessel wall.

[0010] On the basis of the above technical solution, the present invention can also be improved as follows.

[0011] Furthermore, the buckle is a plastic buckle, and a limiting groove is provided at the outlet end of the shell. The limiting module includes an unlocking block and a fixing hook. Fixing hooks that cooperate with the two L-shaped limiting hooks of the buckle are provided on both sides of the bottom of the limiting groove. An unlocking block that abuts against the horizontal end of the L-shaped limiting hook is provided at the lower part of the fixing hook for horizontal sliding, and the unlocking block passes through the shell on the side away from the limiting groove and extends to the outside of the shell.

[0012] The above-mentioned further beneficial effect is that when the buckle is inserted into the limit slot, the L-shaped limit hook and the fixed hook are clamped to fix the buckle; when unlocking, press the unlocking blocks on both sides, and the unlocking blocks press against the horizontal ends of the L-shaped limit hooks, causing the L-shaped limit hooks to shrink inward and fall off from the fixed hooks, and the buckle can be removed by pulling the connecting block outward.

[0013] Furthermore, the limiting module also includes limiting glass beads, and limiting glass beads are horizontally arranged on the side of the limiting groove, and limiting holes are opened on the connecting block of the buckle corresponding to the limiting glass beads.

[0014] A further beneficial effect of the above method is that when the buckle is inserted into the limiting groove and fixed in place, the spherical portion at the front end of the limiting glass bead will press against the limiting hole, further tightening the buckle. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view of the shell structure of a multi-section blood vessel blood flow control belt of the present invention;

[0016] Figure 2 This is a top view of the shell of a multi-segment blood flow control belt of the present invention;

[0017] Figure 3 This is a cross-sectional view of a shell of a multi-section blood vessel blood flow control belt of the present invention;

[0018] Figure 4 This is a schematic diagram of the buckle fastening of a multi-section blood flow control belt of the present invention;

[0019] Figure 5 for Figure 4 BB cross-sectional view;

[0020] Figure 6 This is a schematic diagram of the buckle structure of a multi-section blood flow control belt of the present invention;

[0021] Figure 7 for Figure 4 AA section view;

[0022] Figure 8 This is a real picture;

[0023] Figure 9 This is another embodiment of a multi-segment blood flow control belt of the present invention;

[0024] Figure 10 This is a prior art diagram.

[0025] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0026] 1. Housing; 11. Limit module; 111. Unlocking block; 112. Limit glass bead; 113. Fixing hook; 12. Limit slot; 13. Motor; 131. Worm; 2. Control compartment; 21. Indicator light; 22. Switch; 3. Battery compartment; 4. Flexible belt; 5. Rack; 6. Cable tie; 7. Buckle; 71. Connecting block; 711. Limit hole; 72. L-shaped limit hook. DETAILED DESCRIPTION

[0027] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0028] Example 1

[0029] like Figures 1 to 3 As shown, a vascular blood flow control belt includes a buckle 7, a tie 6, a rack 5 and a shell 1. A motor 13 is provided in the shell 1. The output shaft of the motor 13 is spirally connected to the rack 5 through a worm 131. The end of the rack 5 is connected to the tie 6. The end of the tie 6 extends to the outside of the shell 1 and is provided with a buckle 7. The outlet end of the shell 1 is provided with a limit module 11 matching the buckle 7. A control module is also included. The motor 13 is electrically connected to the control module.

[0030] When controlling the blood flow of the target blood vessel, the cable tie 6 is wrapped around the outside of the target blood vessel, and then the buckle 7 is inserted into the limit module 11, and the motor 13 is controlled to rotate forward. The output shaft of the motor 13 drives the worm 131 to rotate. Under the action of the worm 131, the rack 5 moves backward, so that the cable tie 6 tightens the blood vessel and cuts off the target blood vessel; when the target blood vessel needs to be periodically conducted during the operation, the motor 13 is controlled to reverse, and the rack 5 moves forward, so that the cable tie 6 loosens the blood vessel; this blood vessel blood flow control belt is easy to operate, and can periodically cut off the target blood vessel according to the progress of the operation. The cable tie 6 is made of non-rigid material and applies pressure around the blood vessel, which is not easy to cause damage to the blood vessel wall.

[0031] Example 2

[0032] like Figure 5As shown, this embodiment is a further improvement on the basis of embodiment 1, specifically as follows:

[0033] The buckle is a plastic buckle. A limit slot 12 is defined at the outlet end of the housing 1. The limit module 11 includes an unlocking block 111 and a fixing hook 113. The fixing hooks 113 are provided on both sides of the bottom of the limit slot 12, which mate with the two L-shaped limit hooks 72 of the buckle 7. The fixing hooks 113 are provided with unlocking blocks 111 that slide horizontally below the fixing hooks 113 and abut against the horizontal ends of the L-shaped limit hooks 72. The unlocking blocks 111 extend through the housing 1 on the side facing away from the limit slot 12, securing the buckle 7. To unlock, the unlocking blocks 111 on both sides press against the horizontal ends of the limit hooks, causing the L-shaped limit hooks 72 to retract inward and fall off the fixing hooks 113. The buckle 7 can then be removed by pulling the connecting block 71 outward.

[0034] Example 3

[0035] like Figure 5 As shown, this embodiment is a further improvement on the basis of embodiment 2, specifically as follows:

[0036] The retaining module 11 also includes a retaining bead 112, which is horizontally positioned on the side of the retaining groove 12. The connecting block 71 of the buckle 7 defines a retaining hole 711 corresponding to the retaining bead 112. When the buckle 7 is inserted into the retaining groove 12 and secured in place, the spherical front end of the retaining bead 112 presses against the retaining hole 711, further securing the buckle 7.

[0037] In specific implementation, the material of the buckle 7 is PE plastic. The plastic has good elasticity, which can make the L-shaped limiting hook 72 easier to clamp and unhook, and make the limiting glass bead 112 and the limiting hole 711 easier to press and unlock.

[0038] Example 4

[0039] like Figures 1 to 2 As shown, this embodiment is a further improvement on the basis of embodiment 3, specifically as follows:

[0040] The control module further includes a power module, a switch 22 and an indicator light 21, and the switch 22, the indicator light 21, the power module and the motor 13 are connected in series to form a loop. The indicator light 21 can indicate whether the motor 13 is in a working state.

[0041] Example 5

[0042] like Figures 1 to 2 As shown, this embodiment is a further improvement on the basis of embodiment 4, specifically as follows:

[0043] The power module and the control module are integrated inside the housing 1. The built-in power module can effectively prevent the power cord from being placed outside, getting entangled in the abdominal cavity, and interfering with the surgical field of view.

[0044] Example 6

[0045] like Figure 9 As shown, this embodiment is a further improvement on the basis of embodiment 4, specifically as follows:

[0046] The device also includes a battery compartment 3 and a control compartment 2. The housing 1 is connected to the control module in the control compartment 2 and the power module in the battery compartment 3 via a flexible band 4 with embedded wires. In practice, the housing 1, control compartment 2, and battery compartment 3 are equipped with slots for interconnection and stacking. The segmented control compartment 2 and battery compartment 3 can be folded in the confined space of laparoscopic surgery, minimizing space usage and obstructing the surgical field of view.

[0047] Example 6

[0048] like Figure 8 As shown, this embodiment is a further improvement on the basis of embodiment 4, specifically as follows:

[0049] Switch 22 is a wireless remote control switch. In specific implementations, switch 22 can employ a radio frequency identification (RFID) switch, with the remote control transmitting radio frequency signals to control the opening and closing of switch 22. Once the vascular blood flow control band is installed on the target vessel, subsequent periodic conduction can be controlled by an external remote control, eliminating the need for medical personnel to operate switch 22 using a laparoscope.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A blood flow control belt, characterized in that: The invention comprises a buckle (7), a cable tie (6), a rack (5) and a housing (1); a motor (13) is arranged in the housing (1); the output shaft of the motor (13) is spirally connected to the rack (5) via a worm (131); the end of the rack (5) is connected to the cable tie (6); the end of the cable tie (6) extends to the outside of the housing (1) and is provided with the buckle (7); the outlet end of the housing (1) is provided with a limit module (11) matching the buckle (7); and a control module is also included; the motor (13) is electrically connected to the control module.

2. The blood vessel blood flow control belt according to claim 1, characterized in that: The buckle (7) is a plastic buckle, and a limiting groove (12) is provided at the outlet end of the shell (1). The limiting module (11) includes an unlocking block (111) and a fixing hook (113). The fixing hooks (113) that match the two L-shaped limiting hooks (72) of the buckle (7) are provided on both sides of the bottom of the limiting groove (12). The unlocking block (111) that abuts against the horizontal end of the L-shaped limiting hook (72) is provided at the lower part of the fixing hook (113) for horizontal sliding, and the unlocking block (111) passes through the shell (1) on the side away from the limiting groove (12) and extends to the outside of the shell (1).

3. The blood vessel blood flow control belt according to claim 2, characterized in that: The limiting module (11) further comprises a limiting glass bead (112), the limiting glass bead (112) being horizontally arranged on the side of the limiting groove (12), and a limiting hole (711) corresponding to the limiting glass bead (112) is provided on the connecting block (71) of the buckle (7).

4. The blood vessel blood flow control belt according to claim 1, characterized in that: It also includes a power supply module, the control module includes a switch (22) and an indicator light (21), and the switch (22), the indicator light (21), the power supply module and the motor (13) are connected in series to form a loop.

5. The blood flow control belt according to claim 1, characterized in that: The power module and the control module are integrated inside the housing (1).

6. The blood flow and blood vessel control belt according to claim 4, characterized in that: It also includes a battery compartment (3) and a control compartment (2), and the outside of the housing (1) is connected in sequence to a control module in the control compartment (2) and a power supply module in the battery compartment (3) via a flexible belt (4) with embedded wires.

7. The blood vessel blood flow control band according to claim 4, characterized in that: The switch (22) is a wireless remote control switch.

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