Hemorrhoids loop ligature device for anorectal operation

Abstract

The utility model discloses a haemorrhoids loop ligature device for an anorectal operation. The haemorrhoids loop ligature device comprises a haemorrhoids clamping and pulling piece and a loop ligature piece. The haemorrhoids clamping and pulling piece is composed of a fixed handle, a pushing handle, a pull rod, an extension rod, a guide pipe and a clamping jaw piece, the fixed handle and the pushing handle are connected through a pin shaft and can rotate relatively, and the pull rod is matched with a connecting groove of the pushing handle through a spherical connector and moves in a sliding hole of the fixed handle to drive the extension rod to enable the clamping jaw piece to act. The ligation piece comprises a pushing pipe and a conical sleeve, and the conical sleeve is detachably arranged at the end, close to the clamping jaw pieces, of the catheter in a sleeving mode. The clamping jaw piece is integrally formed by a long straight piece and a bent hook piece and can deform to enter a catheter hole, and an installation hole facilitating installation of the spherical connector is formed in the lower portion of the connecting groove. According to the loop ligature device, internal hemorrhoids can be accurately clamped, loop ligature operation can be conveniently carried out, the clamping jaw pieces are stable and reliable, clamping, catheter pulling and loop ligature operation of the internal hemorrhoids can be achieved without a negative pressure suction pump, the structure is simplified, cost is reduced, operation space occupation is reduced, and operation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the medical instrument technical field, specifically is a kind of hemorrhoid ligation device for anorectal operation. BACKGROUND

[0002] Traditional hemorrhoid ligation device often needs to cooperate with negative pressure suction pump, and the internal hemorrhoids are sucked into the ligation part of the ligation device by negative pressure suction, and then ligation operation is carried out. However, this way of cooperating with negative pressure suction pump has many inconveniences. On the one hand, the negative pressure suction pump increases the complexity and cost of the equipment, not only needs additional equipment purchase cost, but also needs to occupy a certain operation space for placement and connection operation;On the other hand, the control of negative pressure suction process is complex, and the adjustment of suction force needs to be accurately grasped, otherwise it is easy to appear the situation that insufficient suction leads to hemorrhoids cannot be effectively sucked or excessive suction causes damage to surrounding tissues, which affects the operation effect and postoperative recovery of patients. In addition, the whole operation process is relatively prolonged due to the cooperation of negative pressure suction pump, which increases the pain and operation risk of patients;Using negative pressure suction device, manual ligation, large space is needed, from anus operation, operation field needs to be fully exposed, further anal dilation is needed, which increases the pain of patients and prolongs the operation time and reduces the operation precision. SUMMARY

[0003] (I) Technical problem solved

[0004] The technical problem to be solved by the utility model is that traditional internal hemorrhoid ligation device needs to cooperate with negative pressure suction pump, the equipment is complex and the cost is high, the operation field space is required to be high, the pain experience of patients in anal dilation process is increased, the operation process is complicated due to the participation of negative pressure suction pump, the internal hemorrhoids are easily damaged around the hemorrhoids due to excessive negative pressure, and the operation time is long.

[0005] (II) Technical scheme

[0006] To solve the above problems, the utility model provides the following technical scheme:

[0007] A kind of hemorrhoid ligation device for anorectal operation, including hemorrhoid clamp puller and ligation piece, the ligation piece is arranged on the hemorrhoid clamp puller and can move forward and backward for pushing down ligation rubber band from hemorrhoid clamp puller and ligation to hemorrhoidal nucleus, the hemorrhoid ligation device is used to clamp and pull hemorrhoids to facilitate ligation rubber band to ligation hemorrhoids;

[0008] The haemorrhoids clamp pulling piece comprises a fixed handle, a pushing handle, a pulling rod, an extension rod, a guide pipe and a clamp jaw piece, the fixed handle and the pushing handle are connected through a pin shaft, relative rotation between the fixed handle and the pushing handle can be realized, an upper portion of the fixed handle is provided with a sliding hole, an upper portion of the pushing handle is provided with a connecting groove, one end of the pulling rod is provided with a spherical connector, a rod body of the pulling rod is assembled in the sliding hole and can move forward and backward in the sliding hole, the spherical connector is arranged in the connecting groove and can move up and down in the connecting groove;

[0009] The guide pipe is fixedly arranged in the sliding hole near one end of the pulling rod, the extension rod is arranged in the guide pipe, one end of the extension rod is fixedly connected with one end of the pulling rod away from the spherical connector, and the other end of the extension rod extends to the outside of the guide pipe and is connected with the clamp jaw piece, the clamp jaw piece is provided with five clamp jaw pieces arranged in a circumferential array on the extension rod;

[0010] The sleeve ligation piece comprises a pushing pipe and a conical sleeve, the pushing pipe is sleeved on the guide pipe, and the length of the pushing pipe is smaller than the length of the guide pipe, the conical sleeve is sleeved on one end of the guide pipe near the clamp jaw piece, and the conical sleeve can be detached from the guide pipe.

[0011] Further, one end of the pushing pipe near the fixed handle is further provided with an anti-skid step.

[0012] Further, the clamp jaw piece comprises a long straight piece and a bent hook piece, the long straight piece and the bent hook piece are in an integral molding structure, and one end of the long straight piece near the extension rod is fixedly connected with the extension rod.

[0013] Further, a plurality of clamp jaw pieces can be deformed and enter into the pipe hole of the guide pipe when the extension rod pulls the clamp jaw pieces into the guide pipe.

[0014] Further, the lower portion of the connecting groove is provided with a mounting hole for facilitating mounting of the spherical connector into the connecting groove, the mounting hole is in communication with the connecting groove, and the inner diameter of the mounting hole is greater than the outer diameter of the spherical connector.

[0015] (Three) beneficial effects

[0016] The beneficial effects of the utility model are:

[0017] Through cooperation of the haemorrhoids clamp pulling piece and the sleeve ligation piece, the haemorrhoids can be clamped, pulled into the guide pipe and ligated without a negative pressure suction pump, the equipment structure is simplified, the cost is reduced, the surgical space occupation is reduced, the pain of patients is reduced, the surgical time is saved, and the surgical efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a perspective view of the utility model;

[0019] Figure 2 is a sectional view of the utility model;

[0020] Figure 3 is Figure 2 is an enlarged view of A in the middle;

[0021] Figure 4 is a structural schematic view of the pushing handle of the utility model;

[0022] Figure 5 is a structural schematic view of the fixed handle of the utility model;

[0023] Figure 6 is a structural schematic view of the clamping jaw piece of the utility model;

[0024] Figure 7 is a structural schematic view of the connection between the conical sleeve and the catheter.

[0025] Markings in the figure: 1-hemorrhoids clamp puller, 101-fixed handle, 102-pushing handle, 103-pull rod, 104-elongated rod, 105-catheter, 106-clamping jaw piece, 106a-long straight piece, 106b-bent hook piece, 107-sliding hole, 108-connection groove, 109-spherical connector, 110-mounting hole, 111-anti-skid step, 2-ligature sleeve, 201-pushing tube, 202-conical sleeve. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0027] In the description of the utility model, it is understood that the orientations or position relationships indicated by the terms "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are the orientations or position relationships shown based on the drawings, and are only for the convenience of describing the utility model and simplifying the description, and are not intended to indicate or imply that the devices or elements must have the specific orientations, be constructed and operated in the specific orientations, and therefore cannot be understood as the limitation on the utility model.

[0028] Please refer to Figures 1-7The anus surgery hemorrhoid ligation device is composed of a hemorrhoid clamp pulling member 1 and a ligation member 2. The ligation member 2 is arranged on the hemorrhoid clamp pulling member 1 and can move forward and backward to push the ligation rubber band from the hemorrhoid clamp pulling member 1 to the hemorrhoid. The hemorrhoid ligation device 2 is used to clamp and pull the hemorrhoid to facilitate the ligation of the ligation rubber band to the hemorrhoid.

[0029] The basic operation part of the hemorrhoid clamp pulling member 1 is composed of a fixed handle 101 and a pushing handle 102. The two are connected by a pin shaft to form a movable structure. The doctor can realize the relative rotation between the two by the fine operation of the fingers to provide a power source for the subsequent clamping and pulling action. The upper part of the fixed handle 101 is provided with a sliding hole 107. The sliding hole 107 not only provides a moving track for the pull rod 103, but also ensures the stability of the pull rod 103 during the forward and backward movement. One end of the pull rod 103 is provided with a spherical connector 109, and the upper part of the pushing handle 102 is provided with a connecting groove 108 and connected with the spherical connector 109 at one end of the pull rod 103. The rod body of the pull rod 103 is tightly fitted in the sliding hole 107, which can freely and accurately move forward and backward in the sliding hole 107. The spherical connector 109 is seated in the connecting groove 108 and has the ability to move up and down in the connecting groove 108. The rotating action of the pushing handle 102 can be seamlessly converted into the linear motion of the pull rod 103, realizing the effective transmission of force and the conversion of action. The lower part of the connecting groove 108 is provided with a mounting hole 110 for facilitating the installation of the spherical connector 109 into the connecting groove 108. The mounting hole 110 is in communication with the connecting groove 108, and the inner diameter of the mounting hole 110 is greater than the outer diameter of the spherical connector 109.

[0030] The catheter 105 is firmly fixed in the sliding hole 107 near one end of the pull rod 103, providing a stable support for the internal components. The extension rod 104 is arranged inside the catheter 105, with one end fixed to the end of the pull rod 103 away from the spherical connector 109, so that the movement of the pull rod 103 can be transmitted to the extension rod 104. The other end of the extension rod 104 extends to the outside of the catheter 105 and is tightly connected with the clamping jaw pieces 106. There are five clamping jaw pieces 106 arranged in a circular array on the extension rod 104, and this uniform distribution design ensures the balance of force when clamping internal hemorrhoids. The clamping jaw pieces 106 are integrally formed by a straight piece 106a and a hook piece 106b, and the straight piece 106a near the extension rod 104 is fixedly connected with the extension rod 104. When the pull rod 103 is pulled towards the inside of the catheter 105, the extension rod 104 will contract inward due to the transmission of force, thereby exerting a pulling force on the clamping jaw pieces 106. Under the action of the pulling force, the multiple clamping jaw pieces 106 can produce coordinated deformation, their straight pieces 106a gradually bend, driving the hook pieces 106b to contract inward, and then smoothly enter the pipe hole of the catheter 105, realizing soft clamping of hemorrhoids. When the pull rod 103 moves in the opposite direction, the clamping jaw pieces 106 will restore to their original state under the action of their own elastic restoring force, releasing the clamped internal hemorrhoids, completing a complete clamping and releasing cycle.

[0031] The ligation device 2 includes a push tube 201 and a conical sleeve 202, and the push tube 201 is tightly sleeved on the catheter 105 with a gap fit, realizing smooth forward and backward movement of the push tube 201 on the catheter 105. The length of the push tube 201 is less than the length of the catheter 105, which provides a clear definition for the movement range of the push tube 201 on the catheter 105, so that it can accurately push the ligation rubber band to the predetermined position. The push tube 201 is specially provided with an anti-slip step 111 near the fixed handle 101, and the surface of the anti-slip step 111 is treated with special anti-slip texture or material, such as rubber coating or fine anti-slip grooves, etc., which greatly increases the friction between the doctor's fingers and the push tube 201, facilitating the doctor to apply force stably and accurately during operation, ensuring the accurate movement of the push tube 201. The conical sleeve 202 is sleeved on the end of the catheter 105 near the clamping jaw pieces 106, and a detachable connection is adopted between the conical sleeve 202 and the catheter 105.

[0032] The ligation rubber band is pre-wrapped on the conical sleeve 202, which is wrapped on the catheter 105, and then the ligation rubber band is wrapped on the catheter through the conical sleeve 202, and the ligation rubber band enters the large end of the conical sleeve 202 and slides along the taper of the conical sleeve 202 to the appropriate position on the catheter 105. By pushing the push tube 201 to move forward and backward on the catheter 105, the ligation rubber band can be accurately pushed off the internal hemorrhoid clamp puller 1 and stably ligation on the internal hemorrhoid, realizing efficient installation and application of the ligation rubber band.

[0033] Working principle:

[0034] Before surgery, the ligation rubber band is properly placed on the conical sleeve 202 to ensure its stable position and easy subsequent operation. After the preparation is ready, the medical staff holds the ligation device and slowly and gently stretches the catheter 105 and the clamping jaw piece 106 into the patient's anus until the hemorrhoid position is reached.

[0035] At this time, the medical staff starts to operate the push handle 102. The push handle 102 rotates around the pin shaft connected with the fixed handle 101. During the rotation, since the spherical connector 109 of the pull rod 103 is located in the connecting groove 108 of the push handle 102 and can move up and down, and the rod body of the pull rod 103 can slide forward and backward in the sliding hole 107 of the fixed handle 101, the rotation of the push handle 102 will drive the pull rod 103 to move. The pull rod 103 further pulls the extension rod 104, so that the extension rod 104 extends outward from the catheter 105, and the clamping jaw piece 106 connected thereto is opened. During the opening of the clamping jaw piece 106, the medical staff adjusts the position of the ligation device so that the clamping jaw piece 106 can accurately clamp the hemorrhoid tissue and ensure firm clamping without unnecessary damage to the surrounding tissue.

[0036] After successfully clamping the hemorrhoid, the medical staff reverses the operation of the push handle 102. The push handle 102 is reversely rotated, driving the pull rod 103 to reversely move, so that the extension rod 104 is pulled inward. The clamping jaw piece 106 is subjected to an inward pulling force, and the long straight piece 106a and the hook piece 106b are integrally formed and have a certain elasticity, so that the clamping jaw piece 106 deforms and gradually enters the pipe hole of the catheter 105. In this process, the internal hemorrhoid is tightly fixed between the clamping jaw piece 106 and the end of the catheter 105, and the position is stable, laying a good foundation for subsequent ligation operation.

[0037] Then, the medical staff holds the anti-skid step 111 on the pushing tube 201, which can effectively increase the friction between the hands and the pushing tube 201, and facilitate the medical staff to exert force. Then, the pushing tube 201 is smoothly pushed along the catheter 105 to the direction of the clamping jaw piece 106. When the pushing tube 201 moves forward, the conical sleeve 202 is pushed forward together. Since the conical sleeve 202 is sleeved on the end of the catheter 105 close to the clamping jaw piece 106 and has a certain matching relationship with the catheter 105, when the conical sleeve 202 is subjected to the pushing force of the pushing tube 201, the elastic band is detached from the conical sleeve 202 and accurately laced at the root of the internal hemorrhoids.

[0038] After the ligation is completed, the medical staff operates the pushing handle 102 again, so that the clamping jaw piece 106 releases the hemorrhoids. After the clamping jaw piece 106 is released, the medical staff slowly and carefully takes out the ligator from the anus of the patient, and the whole operation process is completed.

[0039] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims. In addition, it should be understood that although the present application is described in the specification in terms of embodiments, each embodiment does not contain only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A hemorrhoid ligator for an anorectal surgery, characterized by: The utility model provides a haemorrhoids clamp and rubber band ligation device, which comprises a haemorrhoids clamp and a rubber band ligation device, wherein the rubber band ligation device is arranged on the haemorrhoids clamp and can move forward and backward to push the rubber band from the haemorrhoids clamp to the haemorrhoidal node for ligation. The haemorrhoids clamp comprises a fixed handle (101), a pushing handle (102), a pull rod (103), an extension rod (104), a guide pipe (105) and a clamping jaw (106), the fixed handle (101) and the pushing handle (102) are connected through a pin shaft and can rotate relative to each other, the upper portion of the fixed handle (101) is provided with a sliding hole (107), the upper portion of the pushing handle (102) is provided with a connecting groove (108), one end of the pull rod (103) is provided with a spherical connecting head (109), the rod body of the pull rod (103) is assembled in the sliding hole (107) and can move forward and backward in the sliding hole (107), the spherical connecting head (109) is arranged in the connecting groove (108) and can move up and down in the connecting groove (108). The guide pipe (105) is fixedly arranged in the sliding hole (107) near one end of the pull rod (103), the extension rod (104) is arranged in the guide pipe (105), one end of the extension rod (104) is fixedly connected with the end of the pull rod (103) away from the spherical connecting head (109), the other end of the extension rod (104) extends to the outside of the guide pipe (105) and is connected with the clamping jaw (106), and the clamping jaw (106) is provided with five clamping jaw pieces arranged in a circumferential array on the extension rod (104). The rubber band ligation device comprises a pushing pipe (201) and a conical sleeve (202), the pushing pipe (201) is sleeved on the guide pipe (105), the length of the pushing pipe (201) is less than the length of the guide pipe (105), the conical sleeve (202) is sleeved on one end of the guide pipe (105) near the clamping jaw (106), and the conical sleeve (202) can be detached from the guide pipe (105).

2. The hemorrhoid ligator according to claim 1, wherein: The end of the pushing pipe (201) near the fixed handle (101) is further provided with an anti-skid step (111).

3. The hemorrhoid ligator according to claim 1, wherein: The clamping jaw (106) comprises a straight piece (106a) and a bent hook piece (106b), the straight piece (106a) and the bent hook piece (106b) are in an integral molding structure, and the end of the straight piece (106a) near the extension rod (104) is fixedly connected with the extension rod (104).

4. The hemorrhoid ligator according to claim 3, wherein: When the extension rod (104) is pulled into the guide pipe (105), the plurality of clamping jaws (106) can be deformed and enter the pipe hole of the guide pipe (105).

5. The hemorrhoid ligator according to claim 4, wherein: The lower part of the connecting groove (108) is provided with a mounting hole (110) for facilitating mounting of the spherical connector (109) into the connecting groove (108), the mounting hole (110) is in communication with the connecting groove (108), and the inner diameter of the mounting hole (110) is greater than the outer diameter of the spherical connector (109).

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