Rectum strapping device

Abstract

The invention relates to the field of rectum resection binding, in particular to a rectum binding device. The rectum strapping device comprises a shell, a rotating part and a driving assembly. The head of the shell is provided with a containing hole penetrating through the shell and used for containing the rectum, and a channel allowing the rectum to enter the containing hole is formed in the head of the shell. The rotating piece is rotatably installed on the shell, a rotating shaft coincides with the axis of the containing hole, and the rotating piece is provided with a connecting part used for being connected with one end of a bridle; the driving assembly is installed on the shell, acts on the rotating piece and is used for driving the rotating piece to rotate. According to the invention, an operator can be assisted to conveniently bind the rectum, the technical dependence on the operator is reduced, and the operation time is shortened.

Description

Technical Field

[0001] This invention relates to the field of rectal resection and ligation, and more specifically to a rectal ligator. Background Technology

[0002] Open laparoscopic rectal resection is an important surgical procedure for treating diseases such as rectal cancer. A crucial and delicate step in this type of surgery is ligating the distal rectum to be resected. The main purpose of this procedure is to prevent leakage of intestinal contents during resection, thereby minimizing the risk of abdominal contamination and postoperative infection. Simultaneously, the ligated rectal stump acts as a "handle," facilitating traction and manipulation by the surgeon, aiding in subsequent anastomosis or closure, and helping to ensure a clear surgical field.

[0003] Currently, the most common rectal ligation method used in clinical practice relies on manual manipulation by surgeons. The typical procedure is as follows: the surgeon first uses a long forceps to hold a specialized ligation band (such as cotton rope or polymer ligature), and then, relying on experience and feel, wraps the band around the rectum and its mesentery deep within the pelvic cavity, where visibility and operating space are limited. Subsequently, the position of the band needs to be adjusted and manually tightened, knotted, or locked in place. This process is entirely accomplished indirectly using a needle holder or other forceps-like instruments.

[0004] However, this traditional ligation method has many drawbacks: First, the pelvic cavity has a complex anatomy and limited space, making it extremely challenging to manipulate a soft bandage precisely around the rectum and tighten it smoothly by hand. This procedure is highly dependent on the surgeon's skills, making it difficult and technically demanding. Second, the cumbersome steps of clamping, wrapping, tightening, and fixing consume valuable surgical time, especially when multiple attempts are needed to successfully complete the ligation, leading to a longer surgical time and increasing the patient's anesthesia time and surgical trauma. Third, in situations with poor visibility, repeated insertion and removal of instruments and manipulation may increase the risk of accidental injury to surrounding important tissues (such as the ureter, pelvic nerve plexus, and blood vessels), and also increase the risk of intraoperative contamination.

[0005] Therefore, there is an urgent need to design a bandage device to address the shortcomings of the existing technology and meet the actual clinical needs. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a rectal ligator that can help the operator to easily ligate the rectum, reduce the dependence on the operator's skills, and shorten the operation time.

[0007] To solve the above-mentioned technical problems, the technical solution of the present invention is: a rectal ligator, comprising: The shell has a receiving hole through it for accommodating the rectum and a channel communicating with the receiving hole for the rectum to enter the receiving hole; A rotating component is rotatably mounted on the housing, with its rotation axis coinciding with the axis of the receiving hole, and is provided with a connecting portion for connecting one end of the strap; A drive assembly, mounted on the housing, acts on the rotating component to drive the rotating component to rotate.

[0008] Furthermore, to facilitate rectal entry into the receiving hole, the head of the housing is also provided with a channel communicating with the receiving hole for rectal entry into the receiving hole.

[0009] Furthermore, a specific structure for a rotating component that is conveniently assembled within a housing is provided. The rotating component is an annular body with a notch, and when the rotating component is in its initial position, the notch faces the channel.

[0010] Furthermore, to avoid the end of the annular body causing inconvenience to the rectum during the process of entering the receiving hole, the circumferential angle of the notch is not less than the circumferential angle of the channel.

[0011] A further specific method for assembling the rotating component is provided, wherein within the housing, a plurality of rollers axially parallel to the rotation axis of the rotating component are rotatably supported along the outer edge of the rotating component, and a retaining ring is provided along the inner edge of the rotating component; wherein, The rotating component is constrained between the roller and the retaining ring and makes rolling contact with the roller.

[0012] Furthermore, a specific structure for a reliable driving component is provided, the driving component comprising: Power mechanism; The wheel assembly includes a driving wheel and at least two driven wheels. The power mechanism is connected to the driving wheel to drive its rotation. All the driven wheels are arranged circumferentially along the outer edge of the annular body. A drive belt is fitted onto the pulley assembly, and all driven pulleys press a portion of the drive belt against the rotating component.

[0013] Furthermore, the housing includes two interlocking half-shells and a mounting plate press-fitted between the two half-shells; wherein, Both the rotating component and the driving assembly are mounted on the mounting plate; The housing is provided with a clearance groove near the receiving hole for the strap to extend out.

[0014] Furthermore, the clearance groove extends along the rotational trajectory of the connection portion.

[0015] Furthermore, to eliminate the need for knotting, the strap is configured to be self-adhesive.

[0016] By adopting the above technical solution, the present invention has the following beneficial effects: The entire ligation process transforms the originally highly difficult rectal ligation into a simple "rectal placement - initiation of tightening" procedure, greatly reducing the reliance on the doctor's personal skills and experience. The belt is tightened by driving the rotating parts through the drive component, avoiding repeated adjustments during manual operation and thus shortening the operation time; The tightening path of the straps is around the axis of the receiving hole. The tightening path is a perfect circle centered on the rectum, which is secure and precise, and can prevent accidental loosening. Using the ligator invented in this invention, doctors no longer need to repeatedly use sharp instruments such as forceps in a confined space, which greatly reduces the risk of injury to important blood vessels, nerves and organs around the rectum due to instrument slippage or operational errors, and improves the safety of the surgery. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the rectal ligator of the present invention; Figure 2 for Figure 1 Enlarged view of part A; Figure 3 This is a schematic diagram of the internal structure of the rectal ligator of the present invention; Figure 4 This is a schematic diagram of the mounting plate and components mounted thereon of the present invention. Figure 5 This is a schematic diagram of the internal structure of the rectal ligator of the present invention during the rectal ligation process; In the figure, 1 is the housing; 11 is the retaining ring; 12 is the mounting plate; 13 is the clearance groove; 2 is the receiving hole; 3 is the rotating part; 31 is the connecting part; 4 is the belt; 5 is the drive assembly; 51 is the power mechanism; 52 is the driving wheel; 53 is the driven wheel; 54 is the transmission belt; 6 is the channel; 7 is the roller; and 10 is the rectum. Detailed Implementation

[0018] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0019] like Figures 1 to 5 As shown, a rectal ligator includes: The housing 1 has a receiving hole 2 through which the rectum 10 is received and a channel 6 communicating with the receiving hole 2 to allow the rectum 10 to enter the receiving hole 2. The rotating component 3 is rotatably mounted on the housing 1, with its rotation axis coinciding with the axis of the receiving hole 2, and is provided with a connecting part 31 for connecting one end of the strap 4; The drive assembly 5 is installed in the housing 1 and acts on the rotating part 3 to drive the rotating part 3 to rotate.

[0020] Because of the presence of channel 6, the accommodating hole 2 is essentially a non-closed loop hole, so that the rectum 10 that needs to be tied can enter the accommodating hole 2 through channel 6, making it easier for doctors to perform rectal tying operations.

[0021] The housing 1 has a tube body and a handle. The head of the tube body forms a non-closed receiving hole 2, and the handle is installed at the tail of the tube body.

[0022] When it is necessary to bind the rectum 10, the rectum 10 enters the receiving hole 2 through the channel 6. Then, the other end of the strap 4 (i.e. the free end of the strap 4) is wrapped around the rectum 10 and fixed. The drive assembly 5 is activated, and the drive assembly 5 drives the rotating part 3 to rotate in the corresponding direction. During the rotation, the rotating part 3 drives one end of the strap 4 to wrap around, thereby tightening the rectum 10. If the strap 4 can achieve self-adhesion, the binding of the rectum 10 is completed after tightening the rectum 10. If the strap 4 cannot achieve self-adhesion, a knotting operation can be added after tightening the rectum 10.

[0023] The entire ligation process transforms the originally highly complex rectal ligation into a simple "rectal placement - tightening initiation" procedure, significantly reducing reliance on the surgeon's individual skills and experience. Furthermore, the tightening of the strap 4 is achieved by driving the rotating component 3 via the drive assembly 5, avoiding repeated adjustments during manual operation and shortening the surgical time. Additionally, the tightening path of the strap 4 revolves around the axis of the placement hole 2, forming a perfect circle centered on the rectum 10, ensuring a secure and precise ligation that prevents accidental loosening. Using the ligator in this embodiment, the surgeon no longer needs to repeatedly use sharp instruments such as forceps in a confined space, greatly reducing the risk of instrument slippage or operational errors that could damage important blood vessels, nerves, and organs surrounding the rectum 10, thus improving surgical safety.

[0024] There are several ways for the cable tie 4 to achieve self-adhesion. For example, it can achieve self-adhesion by relying on its own physical adhesiveness and van der Waals forces, just like cling film; or it can achieve self-adhesion by relying on the cooperation of the hook and loop sides, just like Velcro; and so on.

[0025] In this embodiment, more preferably, as shown below, Figures 3 to 5 As shown, the rotating component 3 is an annular body with a notch. When the rotating component 3 is in its initial position, the notch faces the channel 6. Preferably, the circumferential angle of the notch is not less than the circumferential angle of the channel 6.

[0026] The rotating part 3 is designed as a ring to facilitate its smooth rotation within the housing 1. The circumferential angle of the notch is not less than that of the circumferential angle of the channel 6. This is to prevent the end of the rotating part 3 from extending into the channel 6 and thus affecting or interfering with the process of the rectum 10 entering the receiving hole 2 from the channel 6 before binding.

[0027] In this embodiment, there are several ways to rotatably mount the rotating component 3 inside the housing 1.

[0028] For example, a constraint groove matching the shape of the rotating part 3 is provided inside the housing 1. The rotating part 3 is located in the constraint groove and rotates in the constraint groove under the drive of the drive assembly 5.

[0029] For example, such as Figures 3 to 5 As shown, within the housing 1, multiple rollers 7 are rotatably supported along the outer edge of the rotating member 3, with their axes parallel to the rotation axis of the rotating member 3. A retaining ring 11 is provided along the inner edge of the rotating member 3. The rotating member 3 is constrained between the rollers 7 and the retaining ring 11, and makes rolling contact with the rollers 7. This structure is preferred, as the rolling contact between the rotating member 3 and the rollers 7 can reduce the rotational resistance of the rotating member 3.

[0030] exist Figures 3 to 5 In the example shown, there are six rollers 7, with three arranged at each end of the rotating part 2.

[0031] In this embodiment, the driving component 5 drives the rotating member 3 to rotate, thereby securing the rectum 10. The driving component 5 can have various structures; for example, it can be driven by a motor to rotate a wheel that is in close contact with the rotating member 3, causing the rotating member 3 to rotate during rotation, and so on. A more preferred structure of the driving component 5 is described below, such as... Figures 3 to 5 As shown, the driving component 5 includes: The power mechanism 51 can be an electric motor; The wheel assembly includes a driving wheel 52 and at least two driven wheels 53. The power mechanism 51 is connected to the driving wheel 52 to drive the rotation. All the driven wheels 53 are arranged circumferentially along the outer edge of the annular body. The drive belt 54 is fitted onto the pulley set, and all the driven pulleys 53 press a portion of the drive belt 54 against the rotating member 3.

[0032] exist Figures 3 to 5 In the example shown, three driven wheels 53 are provided, facing the middle position of the rotating member 3, forming a good constraint on the rotating member 3 with the six rollers 7.

[0033] Specifically, at least two driven pulleys 53 press a portion of the transmission belt 54 onto the rotating member 3, and the friction between the transmission belt 54 and the rotating member 3 drives the rotating member 3 to rotate. In this way, there can be a relatively large contact area between the rotating member 3 and the component that drives its rotation, thereby avoiding slippage and ensuring that the rotating member 3 rotates reliably.

[0034] In this embodiment, preferably, as follows: Figures 1 to 5 As shown, the housing 1 includes two interlocking half-housings 1 and a mounting plate 12 pressed between the two half-housings 1. The rotating component 3 and the drive assembly 5 are both mounted on the mounting plate 12. A clearance groove 13 for the extension of the strap 4 is provided on the side of the housing 1 near the receiving hole 2.

[0035] During production, the rotating component 3 and the drive assembly 5 are installed on the mounting plate 12, then the mounting plate 12 is placed into one of the half-shells, and finally the other half-shell is snapped on, thus completing the assembly. Using this type of shell 1, the entire rectal ligator can be easily assembled during production, improving assembly and production efficiency.

[0036] In addition, the drive assembly 5 and the connecting part 31 can always be hidden inside the housing 1, and the rotating part 3 will not extend into the receiving hole 2 during the rotation process. Only the strap 4 extends out from the relief groove 31, thereby avoiding damage to the rectum 10 caused by the contact of the various parts of the strapping device with the rectum during the process of strapping the rectum 10.

[0037] In this embodiment, preferably, as follows: Figure 1 and Figure 2 As shown, the clearance groove 13 extends along the rotation trajectory of the connecting part 31.

[0038] The clearance groove 13 is designed to be relatively long, which facilitates the extension of the strap 4 and allows the strap 4 to be exposed as much as possible in the housing 1, so as to maximize the effective length and avoid waste.

[0039] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A rectal ligator, characterized in that, include: The shell (1) has a receiving hole (2) through which the rectum (10) is received and a channel (6) communicating with the receiving hole (2) to allow the rectum (10) to enter the receiving hole (2). The rotating part (3) is rotatably mounted on the housing (1), the rotation axis coincides with the axis of the receiving hole (2), and a connecting part (31) for connecting one end of the strap (4) is provided. The drive assembly (5) is installed on the housing (1) and acts on the rotating part (3) to drive the rotating part (3) to rotate.

2. The rectal ligator according to claim 1, characterized in that, The rotating component (3) is an annular body with a notch, and when the rotating component (3) is in the initial position, the notch is directly opposite the channel (6).

3. The rectal ligator according to claim 2, characterized in that, The circumferential angle of the notch is not less than the circumferential angle of the channel (6).

4. The rectal ligator according to claim 2, characterized in that, Inside the housing (1), a plurality of rollers (7) with axial directions parallel to the rotation axis of the rotating member (3) are rotatably supported along the outer edge of the rotating member (3), and a retaining ring (11) is provided along the inner edge of the rotating member (3); wherein, The rotating member (3) is constrained between the roller (7) and the retaining ring (11) and rolls in contact with the roller (7).

5. The rectal ligator according to claim 2, characterized in that, The driving component (5) includes: Power mechanism (51); The wheel assembly includes a driving wheel (52) and at least two driven wheels (53), the power mechanism (51) is connected to the driving wheel (52) to drive rotation, and all driven wheels (53) are arranged circumferentially along the outer edge of the annular body; A drive belt (54) is fitted onto the wheel assembly, and all driven pulleys (53) press a portion of the drive belt (54) against the rotating member (3).

6. The rectal ligator according to claim 1, characterized in that, The housing (1) includes two interlocking half-shells (1) and a mounting plate (12) press-fitted between the two half-shells (1); wherein, The rotating component (3) and the driving assembly (5) are both mounted on the mounting plate (12); The housing (1) is provided with a clearance groove (13) for the extension of the strap (4) near the receiving hole (2).

7. The rectal ligator according to claim 6, characterized in that, The clearance groove (13) extends along the rotational trajectory of the connecting part (31).

8. The rectal ligator according to claim 1, characterized in that, The strap (4) is configured to be self-adhesive.

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