An anorectal ligator and its working method

Abstract

The present invention relates to an anorectal ligator and its working method. The anorectal ligator includes: an air extraction mechanism, an air release mechanism, a driving mechanism, an inner tube, and an outer tube sleeved outside the inner tube. One end of the inner tube is respectively connected to the air extraction mechanism and the air release mechanism, and the other end thereof abuts against the diseased tissue. After triggering the air extraction mechanism to adsorb the diseased tissue into the other end of the inner tube, the driving mechanism is adapted to drive the outer tube to move towards the other end of the inner tube, so as to ligate the elastic coil located at the other end of the inner tube on the adsorbed diseased tissue. And by triggering the air release mechanism to release the adsorption force on the diseased tissue, the inner tube is separated from the diseased tissue. The anorectal ligator of the present invention can replace the traditional mechanical air extraction and release mechanism to automatically ligate the diseased tissue by setting the air extraction mechanism and the air release mechanism, shorten the ligation time, effectively improve the ligation efficiency, and reduce the discomfort of the patient.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly relates to an anorectal ligator and its working method. Background Art

[0002] Hemorrhoids are a chronic disease in which varicose veins form one or more soft venous masses at the bottom of the anorectum and the anal mucosa. In modern medicine, the treatment method for hemorrhoids mostly adopts surgical resection. This method is costly, has a large postoperative wound area, and the patient suffers severe pain. For this reason, in clinical treatment, a hemorrhoid ligator has begun to be used. This hemorrhoid ligator sucks the hemorrhoid lesion tissue by negative pressure and then ligates it with a rubber band. The tissue under the rubber band will gradually necrose and fall off due to poor blood circulation and finally be discharged from the body. However, most of the current ligators use a mechanical air pumping and releasing mechanism to ligate the hemorrhoid lesion tissue, which not only takes a long time in the ligation process, but also is cumbersome for medical staff to operate and is quite tiring. There are also ligators on the market that use an air pump to achieve automatic air extraction for ligation, but the air pump of such ligators needs to be externally connected and is very inconvenient to use. Summary of the Invention

[0003] The purpose of the present invention is to provide an anorectal ligator and its working method.

[0004] To solve the above technical problems, the present invention provides an anorectal ligator, including: an air extraction mechanism, an air release mechanism, a driving mechanism, an inner tube, and an outer tube sleeved outside the inner tube; one end of the inner tube is respectively connected to the air extraction mechanism and the air release mechanism, and the other end abuts against the lesion tissue; after triggering the air extraction mechanism to adsorb the lesion tissue into the other end of the inner tube, the driving mechanism is adapted to drive the outer tube to move towards the other end of the inner tube to ligate the elastic coil located at the other end of the inner tube on the adsorbed lesion tissue; and triggering the air release mechanism to release the adsorption force on the lesion tissue, that is, to separate the inner tube from the lesion tissue.

[0005] Further, the air extraction mechanism includes: an air extraction switch, an air extraction pump, and an air extraction tube; the air extraction pump is connected to one end of the inner tube through the air extraction tube; and triggering the air extraction switch to start the air extraction pump, when the inner tube and the air extraction tube are in a negative pressure state, adsorb the lesion tissue into the other end of the inner tube.

[0006] Further, a one-way air valve is provided on the air extraction tube.

[0007] Further, the air release mechanism includes: an air release switch, an air release tube, and a solenoid valve located on the air release tube; one end of the air release tube is connected to one end of the inner tube, and the other end is connected to the external air; triggering the air release switch to open the solenoid valve, so that the inner tube is communicated with the external air through the air release tube, that is, to release the adsorption force on the lesion tissue.

[0008] Furthermore, the anorectal ligator further comprises: an emergency air release mechanism; the emergency air release mechanism includes: an emergency air release tube and an emergency air release switch; one end of the emergency air release tube is connected to one end of the inner tube, and the other end thereof is connected to the emergency air release switch; and triggering the emergency air release switch to communicate the emergency air release tube with external air, that is, to communicate the inner tube with external air through the emergency air release tube.

[0009] Furthermore, the anorectal ligator further comprises: a power supply; the power supply is adapted to supply power to the air extraction pump and the solenoid valve.

[0010] Furthermore, the inner tube includes: an inner tube body and an adsorption tube head; one end of the inner tube body is respectively connected to an air extraction tube, an air release tube and an emergency air release tube through an air pipe assembly; the other end of the inner tube body is detachably connected to the adsorption tube head; the elastic coil is provided on the adsorption tube head; and triggering the air extraction mechanism to adsorb the diseased tissue into the adsorption tube head.

[0011] Furthermore, the anorectal ligator further comprises: a handle; the air extraction mechanism, the air release mechanism, the emergency air release mechanism, the power supply and the air pipe assembly are all located on the handle.

[0012] Furthermore, the driving mechanism includes: a trigger assembly, a limit sleeve and a return spring; the limit sleeve is fixedly sleeved on the outer tube; the return spring is sleeved on the outer tube and is located between the limit sleeve and the shell of the handle; pressing the trigger assembly to drive the limit sleeve to drive the outer tube to move towards the adsorption tube head to sleeve the elastic coil located on the adsorption tube head on the adsorbed diseased tissue; and releasing the trigger assembly, and the limit sleeve and the outer tube are reset under the action of the rebounding force of the return spring.

[0013] On the other hand, the present invention also provides a working method of an anorectal ligator, including: connecting one end of the inner tube to the air extraction mechanism and the air release mechanism respectively; abutting the other end of the inner tube against the diseased tissue; triggering the air extraction mechanism to adsorb the diseased tissue into the other end of the inner tube, and then driving the outer tube to move towards the other end of the inner tube through the driving mechanism to sleeve the elastic coil located on the other end of the inner tube on the adsorbed diseased tissue; and triggering the air release mechanism to release the adsorption force on the diseased tissue, that is, to separate the inner tube from the diseased tissue.

[0014] The beneficial effects of the present invention are as follows: The anorectal ligator of the present invention replaces the traditional mechanical air extraction and deflation mechanism with an air extraction mechanism for automatic air extraction and an air deflation mechanism for automatic air deflation, greatly shortening the ligation time, effectively improving the ligation efficiency, and reducing the discomfort of patients; and by setting an emergency air deflation mechanism, emergency air deflation can be carried out in the case of failure of the air deflation mechanism or other components to deflate normally, so as to ensure the safety of the ligation process; and by setting the adsorption tube head and the inner tube body to be detachably connected, when ligating the next lesion tissue, only the adsorption tube head pre-sleeved with an elastic coil needs to be replaced, making the operation of medical staff more convenient, effectively shortening the ligation duration, and further reducing the discomfort of patients; in addition, through the ingenious layout of each component of the anorectal ligator of the present invention, the air extraction mechanism, the air deflation mechanism, the emergency air deflation mechanism, the power supply and the tracheal assembly are all integrated on the handle, so that the anorectal ligator of the present invention does not need to be externally connected to other devices and is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below in conjunction with the drawings and embodiments.

[0016] Figure 1 is a schematic internal structure diagram of the anorectal ligator of the present invention;

[0017] Figure 2 is a front schematic diagram of the anorectal ligator of the present invention;

[0018] Figure 3 is a reverse schematic diagram of the anorectal ligator of the present invention.

[0019] Wherein:

[0020] handle 10, inner tube body 11, adsorption tube head 12, outer tube 20, clamping member 21, elastic coil 30, wire tube 31, air extraction switch 40, air extraction pump 41, air extraction tube 42, one-way air valve 420, air deflation switch 50, air deflation tube 51, solenoid valve 52, emergency air deflation tube 60, emergency air deflation switch 61, power supply 70, tracheal assembly 80, limiting sleeve 90, return spring 91, rotating shaft 92, hand-held portion 93, pushing portion 94, ring portion 95. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In order to make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] Embodiment 1

[0023] AsFigures 1 to 3 As shown in Figures 1 to 3 , Embodiment 1 of the present invention provides an anorectal ligator, which includes: an air extraction mechanism, an air release mechanism, a driving mechanism, an inner tube, and an outer tube 20 sleeved outside the inner tube; one end of the inner tube is respectively connected to the air extraction mechanism and the air release mechanism, and the other end thereof abuts against the lesion tissue; after triggering the air extraction mechanism to adsorb the lesion tissue into the other end of the inner tube, the driving mechanism is adapted to drive the outer tube 20 to move towards the other end of the inner tube, so as to sleeve an elastic coil 30 located at the other end of the inner tube on the adsorbed lesion tissue; and trigger the air release mechanism to release the adsorption force on the lesion tissue, that is, to separate the inner tube from the lesion tissue.

[0024] Specifically, the anorectal ligator of this embodiment can replace the traditional mechanical air extraction and release mechanism to automatically ligate the lesion tissue by setting the air extraction mechanism and the air release mechanism, shorten the ligation time, effectively improve the ligation efficiency, and reduce the discomfort of the patient.

[0025] Specifically, the lesion tissue in this embodiment is, for example but not limited to, hemorrhoid lesion tissue.

[0026] As an implementation manner of the air extraction mechanism.

[0027] The air extraction mechanism includes: an air extraction switch 40, an air extraction pump 41, and an air extraction pipe 42; wherein the air extraction pump 41 is connected to one end of the inner tube through the air extraction pipe 42; and trigger the air extraction switch 40 to start the air extraction pump 41, and when the inner tube and the air extraction pipe 42 are in a negative pressure state, adsorb the lesion tissue into the other end of the inner tube.

[0028] Specifically, pressing the air extraction switch 40 triggers the air extraction pump 41 to automatically extract air, realizing the automatic adsorption of the lesion tissue into the inner tube.

[0029] Furthermore, in order to prevent air from flowing back into the air extraction pipe 42 and the inner tube and affecting the ligation effect when the air extraction pump 41 stops extracting air and the ligation process has not ended, a one-way air valve 420 is provided on the air extraction pipe 42.

[0030] Specifically, the one-way air valve 420 is, for example but not limited to, a physical one-way air valve.

[0031] As an implementation manner of the air release mechanism.

[0032] The air release mechanism includes: an air release switch 50, an air release pipe 51, and a solenoid valve 52 located on the air release pipe 51; wherein one end of the air release pipe 51 is connected to one end of the inner tube, and the other end thereof is connected to external air; trigger the air release switch 50 to open the solenoid valve 52, so that the inner tube is communicated with external air through the air release pipe 51, that is, release the adsorption force on the lesion tissue.

[0033] Specifically, the solenoid valve 52 is a normally closed solenoid valve. That is, in the initial state, the air release pipe 51 is not connected to the external air. Only when the air release switch 50 is triggered and the solenoid valve 52 is opened, the air release pipe 51 is connected to the external air to achieve air release.

[0034] Specifically, pressing the air release switch 50 triggers the opening of the solenoid valve 52 to achieve automatic air release.

[0035] In this embodiment, the anorectal ligator further includes an emergency air release mechanism. The emergency air release mechanism includes an emergency air release pipe 60 and an emergency air release switch 61. One end of the emergency air release pipe 60 is connected to one end of the inner tube, and the other end is connected to the emergency air release switch 61. By triggering the emergency air release switch 61, the emergency air release pipe 60 is connected to the external air, that is, the inner tube is connected to the external air through the emergency air release pipe 60.

[0036] Specifically, through the emergency air release mechanism, emergency air release can be carried out when the air release mechanism fails and cannot release air normally, ensuring the safety of the ligation process and avoiding medical accidents.

[0037] In this embodiment, the anorectal ligator further includes a power supply 70. The power supply 70 is suitable for supplying power to the air extraction pump 41 and the solenoid valve 52.

[0038] Specifically, the power supply 70 may be, for example but not limited to, a battery.

[0039] As an implementation manner of the inner tube.

[0040] The inner tube includes an inner tube body 11 and an adsorption tube head 12. One end of the inner tube body 11 is respectively connected to the air extraction pipe 42, the air release pipe 51, and the emergency air release pipe 60 through an air pipe assembly 80. The other end of the inner tube body 11 is detachably connected to the adsorption tube head 12. The adsorption tube head 12 is provided with the elastic coil 30. By triggering the air extraction mechanism, the diseased tissue is adsorbed into the adsorption tube head 12.

[0041] Specifically, in actual application, since there may be more than one diseased tissue in the patient, after ligating one diseased tissue, it is necessary to pull out the inner tube and re - set the elastic coil 30 for ligating the next diseased tissue. The setting of the elastic coil 30 is time - consuming and laborious, which results in a relatively long ligation process and cumbersome operation for medical staff. Therefore, in this embodiment, the adsorption tube head 12 and the inner tube body 11 are set to be detachably connected. When ligating the next diseased tissue, only the adsorption tube head 12 pre - set with the elastic coil 30 needs to be replaced, making the operation of medical staff more convenient, effectively shortening the ligation time, and further reducing the discomfort of the patient.

[0042] In this embodiment, the anorectal ligation device further includes: a handle 10 ; the air suction mechanism, the air release mechanism, the emergency air release mechanism, the power supply 70 and the trachea assembly 80 are all located on the handle 10 .

[0043] Specifically, this embodiment integrates the vacuum mechanism, deflation mechanism, emergency deflation mechanism, power supply 70 and trachea assembly 80 on the handle 10 through clever layout of various components, so that the anorectal ligation device does not need to be connected to other external equipment, such as an external vacuum pump is not needed to achieve automatic vacuuming, and is more convenient to use.

[0044] Specifically, the vacuum switch 40, the deflation switch 50 and the emergency deflation switch 61 are all arranged on the shell of the handle 10, which is convenient for medical staff to operate; the vacuum pipe 42, the vacuum pump 41, the one-way air valve 420, the deflation pipe 51, the solenoid valve 52, the emergency deflation pipe 60, the air pipe assembly 80, the battery, etc. are all arranged in the shell of the handle 10.

[0045] As an implementation method of the driving mechanism.

[0046] The driving mechanism includes: a trigger assembly, a limiting sleeve 90 and a reset spring 91; wherein the limiting sleeve 90 is fixedly sleeved on the outer tube 20; the reset spring 91 is sleeved on the outer tube 20 and is located between the limiting sleeve 90 and the shell of the handle 10; the trigger assembly is pressed to push the limiting sleeve 90 to drive the outer tube 20 to move toward the adsorption tube head 12, so that the elastic coil 30 located on the adsorption tube head 12 is sleeved on the adsorbed lesion tissue; and the trigger assembly is released, and the limiting sleeve 90 and the outer tube 20 are reset under the rebound force of the reset spring 91.

[0047] Specifically, the trigger assembly includes: a rotating shaft 92, a hand grip 93 and a pushing portion 94; the hand grip 93 and the pushing portion 94 are connected via a ring portion 95 passed through the rotating shaft 92; by pressing the hand grip 93, the pushing portion 94 is suitable for pushing the limiting sleeve 90 to drive the outer tube 20 to move toward the adsorption tube head 12, at which time the reset spring 91 is in a compressed state; and by releasing the hand grip 93, the limiting sleeve 90 and the outer tube 20 are reset under the rebound force of the reset spring 91, and push the pushing portion 94 to reset.

[0048] In this embodiment, the tightening end of the elastic coil 30 is passed through a wire tube 31; the wire tube 31 is located on the outer tube 20 through a clamp 21; the outer tube 20 is suitable for driving the wire tube 31 to move synchronously toward the adsorption tube head 12, so as to insert the elastic coil 30 onto the lesion tissue, and when the outer tube 20 drives the wire tube 31 to reset synchronously, the elastic coil 30 tightens the lesion tissue.

[0049] The working principle of this anorectal ligation device is as follows:

[0050] Insert this anorectal ligator into the anorectum of the patient until the suction tube head 12 abuts against the lesion tissue to be ligated. Press the air extraction switch 40, and the air extraction pump 41 starts to extract air, making the air extraction tube 42, the air release tube 51, the emergency air release tube 60 and the inner tube in a negative pressure state, so as to adsorb the lesion tissue into the suction tube head 12. Then, press the trigger assembly to ligate the elastic coil 30 onto the adsorbed lesion tissue. After the adsorbed lesion tissue is tightly ligated, press the air release switch 50 to open the solenoid valve 52, so that the inner tube communicates with the external air through the air release tube 51, releasing the adsorption force of the lesion tissue. Then, pull out this anorectal ligator to complete the ligation of the lesion tissue once; replace the suction tube head 12 pre - sleeved with the elastic coil 30, and the ligation of the next lesion tissue can be carried out according to the above - mentioned steps.

[0051] Among them, when the air extraction tube 42, the air release tube 51, the emergency air release tube 60 and the inner tube are in a negative pressure state, release the air extraction switch 40. At this time, pressure is maintained through the one - way air valve 420, the normally - closed solenoid valve 52 and the emergency air release switch 61. On the one hand, it is not necessary for the air extraction pump 41 to be in the air extraction state all the time. On the other hand, during the process of adsorbing the lesion tissue, it can avoid the problem of air leakage, which may cause the lesion tissue not to be completely adsorbed into the suction tube head 12 and affect the treatment effect of the lesion tissue.

[0052] Embodiment 2

[0053] Based on Embodiment 1, this Embodiment 2 provides a working method of an anorectal ligator, including: connecting one end of the inner tube to the air extraction mechanism and the air release mechanism respectively; abutting the other end of the inner tube against the lesion tissue; triggering the air extraction mechanism to adsorb the lesion tissue into the other end of the inner tube, and then driving the outer tube to move towards the other end of the inner tube through the driving mechanism to ligate the elastic coil located on the other end of the inner tube onto the adsorbed lesion tissue; and triggering the air release mechanism to release the adsorption force on the lesion tissue, that is, separating the inner tube from the lesion tissue.

[0054] Specifically, for the specific structure and working principle of the anorectal ligator, refer to the description of Embodiment 1, which will not be elaborated here.

[0055] In summary, the anorectal ligator of the present application replaces the traditional mechanical air extraction and air release mechanisms with an air extraction mechanism for automatic air extraction and an air release mechanism for automatic air release, greatly shortening the ligation time, effectively improving the ligation efficiency, and reducing the discomfort of patients. An emergency air release mechanism is provided to perform emergency air release in case of a malfunction of the air release mechanism or other components that prevents normal air release, ensuring the safety of the ligation process. By setting the adsorption tube head and the inner tube body to be detachably connected, when ligating the next lesion tissue, only the adsorption tube head pre-sleeved with an elastic coil needs to be replaced, making the operation of medical staff more convenient, effectively shortening the ligation duration, and further reducing the discomfort of patients. In addition, by cleverly arranging various components, the air extraction mechanism, the air release mechanism, the emergency air release mechanism, the power supply, and the trachea assembly are all integrated on the handle, making the anorectal ligator of the present application not require external connection to other devices and being more convenient to use.

[0056] Inspired by the above-described ideal embodiments of the present invention, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of the present invention. The technical scope of the present invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An anorectal ligator, characterized in that, it includes: an air extraction mechanism, an air release mechanism, a driving mechanism, an inner tube, and an outer tube sleeved outside the inner tube; wherein one end of the inner tube is respectively connected to the air extraction mechanism and the air release mechanism, and the other end thereof is adapted to abut against the lesion tissue; after triggering the air extraction mechanism to adsorb the lesion tissue into the other end of the inner tube, the driving mechanism is adapted to drive the outer tube to move towards the other end of the inner tube, so as to ligate the elastic coil located at the other end of the inner tube on the adsorbed lesion tissue; and triggering the air release mechanism to release the adsorption force on the lesion tissue, that is, to separate the inner tube from the lesion tissue; the inner tube includes: an inner tube body and an adsorption tube head; wherein one end of the inner tube body is respectively connected to an air extraction tube, an air release tube, and an emergency air release tube through an air pipe assembly; the other end of the inner tube body is detachably connected to the adsorption tube head; the adsorption tube head is provided with the elastic coil; and triggering the air extraction mechanism to adsorb the lesion tissue into the adsorption tube head; the driving mechanism includes: a trigger assembly, a limit sleeve, and a return spring; wherein the limit sleeve is fixedly sleeved on the outer tube; the return spring is sleeved on the outer tube and is located between the limit sleeve and the shell of the handle; depressing the trigger assembly to push the limit sleeve to drive the outer tube to move towards the adsorption tube head, and ligate the elastic coil located on the adsorption tube head on the adsorbed lesion tissue; and releasing the trigger assembly, and the limit sleeve and the outer tube are reset under the action of the rebounding force of the return spring; and the tightening end of the elastic coil is threaded through a wire tube; the wire tube is located on the outer tube through a clamping member.

2. The anorectal ligator according to claim 1, characterized in that, the air extraction mechanism includes: an air extraction switch, an air extraction pump, and an air extraction tube; wherein the air extraction pump is connected to one end of the inner tube through the air extraction tube; and triggering the air extraction switch to start the air extraction pump, and when the inner tube and the air extraction tube are in a negative pressure state, adsorbing the lesion tissue into the other end of the inner tube.

3. The anorectal ligator according to claim 2, characterized in that, a one-way air valve is provided on the air extraction tube.

4. The anorectal ligator according to claim 3, characterized in that, the air release mechanism includes: an air release switch, an air release tube, and a solenoid valve located on the air release tube; wherein one end of the air release tube is connected to one end of the inner tube, and the other end thereof is connected to external air; triggering the air release switch to open the solenoid valve, so that the inner tube is communicated with external air through the air release tube, that is, releasing the adsorption force on the lesion tissue.

5. The anorectal ligator according to claim 4, characterized in that, the anorectal ligator further includes: an emergency air release mechanism; the emergency air release mechanism includes: an emergency air release tube and an emergency air release switch; one end of the emergency air release tube is connected to one end of the inner tube, and the other end thereof is connected to the emergency air release switch; and triggering the emergency air release switch to communicate the emergency air release tube with external air, that is, making the inner tube communicate with external air through the emergency air release tube.

6. The anorectal ligator according to claim 5, characterized in that, the anorectal ligator further includes: a power supply; the power supply is adapted to supply power to the air extraction pump and the solenoid valve.

7. The anorectal ligator according to claim 6, characterized in that, the anorectal ligator further comprises: a handle; the air extraction mechanism, the air release mechanism, the emergency air release mechanism, the power supply and the tracheal assembly are all located on the handle.

Images