Electric hemorrhoid ligation gun body with wrench

Abstract

The electric haemorrhoids ligation gun body comprises a gun body, a negative pressure tube, a circuit board, a motor, a lead screw, a sliding block, a trigger and a push rod, the front end of the gun body is connected with a quick-release ligation tube assembly, the circuit board is connected with the motor, the power output end of the motor is connected with the lead screw, the motor drives the lead screw to move front and back, and the push rod is connected with the negative pressure tube. The lead screw is fixed to the rear end of the sliding block, and the front end of the sliding block makes contact with the outer pipe. The wrench part is pulled to drive the movable part to move up and down, when the wrench part moves downwards, the trigger drives the pushing end of the push rod to move forwards, and the front end of the push rod is connected with a rotary-cut connecting pipe of the quick-release ligation pipe assembly. The controller is used for controlling the motor, an outer tube in the quick-release ligation tube assembly is quickly pushed to move forwards, and therefore the ligation process is quickly achieved; meanwhile, the trigger is pulled, the loop ligature ring is rapidly cut, and convenience and rapidness are achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of hemorrhoid treatment instruments, and in particular relates to an electric hemorrhoid ligation gun body with a wrench. Background Art

[0002] The most commonly used method in hemorrhoid surgery is to use a ligation loop to tie the root of the internal hemorrhoids, using the elastic retraction force of the ligation loop to block the blood supply to the hemorrhoids, causing them to atrophy, necrotize, and eventually fall off to achieve the purpose of healing.

[0003] At present, the most commonly used method of hemorrhoid surgery in hospitals is to manually tie a knot with an elastic rubber band and then put it on the hemorrhoids. This method is very difficult to achieve without the help of external force, is time-consuming and labor-intensive, and is prone to risks such as loosening. In addition, because the traditional manually operated ligation device uses manual control to control the ligation force, the healing of the ligation after surgery is also inconsistent.

[0004] Although some ligation devices have appeared, there are some problems when using these ligation devices, especially how to put the ligation loop on the hemorrhoidal lesion. After the existing ligation gun shoots out the elastic line, the rod binding the elastic line is also shot out, and the rod needs to be manually released, which is very troublesome.

[0005] Therefore, how to solve the defects of the above-mentioned prior art has become the direction of efforts of technicians in this field. Summary of the invention

[0006] The purpose of the present invention is to provide an electric hemorrhoid ligation gun body with a wrench, which can completely solve the shortcomings of the above-mentioned prior art.

[0007] The purpose of the present invention is achieved through the following technical solutions: A gun body of an electric hemorrhoid ligation gun with a wrench, comprising a gun body and a negative pressure tube, the negative pressure tube is placed in the gun body, the front end of the gun body is connected to a quick-release ligation tube assembly, the quick-release ligation tube assembly comprises an outer tube, an inner tube and a rotary cutting connecting tube, and is characterized in that: it also includes a circuit board, a motor, a screw, a slider, a trigger and a push rod, the circuit board is connected to the motor, the power output end of the motor is connected to the screw, the motor drives the screw to move forward and backward, the screw is fixed to the rear end of the slider, and the front end of the slider contacts the outer tube; the wrench is fixed to the gun body by a bolt, the part of the wrench extending out of the gun body is the wrench part, and the part of the wrench located in the gun body is the movable part, the wrench part is pulled to drive the movable part to move up and down, when the wrench part moves downward, the trigger drives the pushing end of the push rod to move forward, and the front end of the push rod is connected to the rotary cutting connecting tube of the quick-release ligation tube assembly.

[0008] As one of the preferred embodiments, a travel switch is provided on the outer shell of the gun body, the travel switch is connected to a circuit board, and a travel control module is provided in the circuit board.

[0009] As one of the preferred embodiments, the push rod is connected to the rotary cutting connecting pipe via a connecting block.

[0010] As one of the preferred methods, a spring is provided on the front end of the push rod, a convex ring is provided in the middle of the push rod, one end of the spring abuts on the convex ring, and the other end abuts on the rear end of the connecting block, and the front end of the connecting block is fixed to the rotary cut connecting tube.

[0011] As one of the preferred methods, the rotary cutting connecting tube is clamped on the outer tube, a rotary cutting tube is provided at the front end of the rotary cutting connecting tube, and a ligation ring is provided in front of the rotary cutting tube.

[0012] As one of the preferred methods, the outer tube is sleeved on the inner tube, and the front end of the inner tube extends out of the outer tube, the ring opening of the ligating ring is fixed on the inner tube extending out of the outer tube, and the rear end of the inner tube is connected to the gun body through a quick release head.

[0013] As one of the preferred embodiments, a negative pressure switch is provided on the gun body shell, and the negative pressure switch is connected to a closing valve on the negative pressure pipe.

[0014] Compared with the prior art, the beneficial effects of the present invention are: an electric hemorrhoid ligation gun body with a wrench uses a controller to control the motor to quickly push the inner and outer tubes of the quick-release ligation tube assembly forward, thereby quickly realizing the ligation process; at the same time, by pulling the trigger, the ligation ring is quickly cut, which is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a schematic diagram of the cross-sectional structure of the gun body of the hemorrhoid band ligation gun of the present invention.

[0016] Figure 2 It is a partial structural schematic diagram of a gun body of a hemorrhoid band ligation gun of the present invention.

[0017] Figure 3 It is a structural schematic diagram of a hemorrhoid ligation gun body and a quick-release ligation tube assembly when the present invention is combined.

[0018] Figure 4 The present invention Figure 1 Schematic diagram of the structure of the medium negative pressure tube.

[0019] Figure 5 The present invention Figure 1 Schematic diagram of the structure of the middle push rod.

[0020] Figure 6 The present invention Figure 1 Schematic diagram of the structure of the middle slider.

[0021] In the accompanying drawings: a gun body 1, a quick-release ligation tube assembly 2, an outer tube 21, an inner tube 22, a quick-release head 23, a negative pressure tube 3, a negative pressure switch 4, a screw rod 5, a slider 6, a front end 601 of the slider, a rear end 602 of the slider, a circuit board 7, a motor 8, a fixing slot 9, a trigger 10, a push rod 11, a pushing end 111 of the push rod, a front end 112 of the push rod, a spring 12, a connecting block 13, a rotary cutting connecting tube 14, a rotary cutting tube 15, and a travel switch 16. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] In this embodiment, the so-called "front" refers to the muzzle direction of the gun body, and the so-called "rear" refers to the direction in which the gun body is connected to the negative pressure machine. The "front" and "rear" themselves have no other meanings and are just for the convenience of the overall description.

[0024] like Figure 1-6 As shown, an electric hemorrhoid ligation gun with a wrench includes a gun body 1, a negative pressure tube 3, a circuit board 7, a motor 8, a screw 5, a slider 6, a trigger 10, a push rod 11 and a spring 12. The negative pressure tube 3 is placed in the gun body 1, and the connecting end is connected to an external negative pressure machine. When in use, negative pressure is generated by the external negative pressure machine, and the hemorrhoid lesions are adsorbed by the negative pressure. A negative pressure switch 4 is provided on the gun body shell 101, and the negative pressure switch 4 is connected to the closed valve on the negative pressure tube 3. The negative pressure switch in this embodiment is as shown in FIG. Figure 3 As shown in the figure, it is a press button that manually controls the opening and closing of the negative pressure tube.

[0025] The front end of the gun body 1 is connected to the quick-release sleeve ligation tube assembly 2. The quick-release sleeve ligation tube assembly is a detachable and replaceable sleeve ligation tube assembly. Figure 3 The quick-release ligation tube assembly 2 includes an outer tube 21, an inner tube 22 and a rotary cutting connecting tube 14. The outer tube 21 is sleeved on the inner tube 22, and the front end of the inner tube 22 extends out of the outer tube 21. The ring opening of the ligation ring is fixed on the inner tube 22 extending out of the outer tube. The function of the ligation ring is to cover the hemorrhoidal lesion. The rear end of the inner tube 22 is connected to the gun body 1 through a quick-release head 23, so that it can be quickly disassembled and replaced.

[0026] Combined with Figure 1 and attached Figure 2A travel switch 16 is provided on the outer shell of the gun body 1. The travel switch 16 is connected to the circuit board 7. A travel control module is provided inside the circuit board 7. The circuit board 7 is connected to the motor 8. The power output end of the motor 8 is connected to the screw rod 5. The motor 8 drives the screw rod 5 to move forward and backward. The screw rod 5 is fixed to the rear end 602 of the slider. Specifically, the slider is a specially designed structure, which has two functions. One function is to set a groove at the rear end of the slider, that is, the place connected to the screw rod. The groove can allow the screw rod to pass through. A nut is pre-installed in the groove. The nut is sleeved on the screw rod. In this way, the screw rod and the slider are fixed. When the screw rod moves, it can drive the slider to move together; another function of the slider is to push the outer tube forward. If the central axis of the screw rod and the outer tube are located in the same plane, a sliding component can be directly provided to push the outer tube. However, this is prone to deviation once a long time has passed. Therefore, in this embodiment, in combination with the attached Figure 6 As shown, the slider is in contact with the outer tube, and the outer tube and the screw rod are in different planes, which can reduce the deviation caused by long-term use.

[0027] When in use: the motor drives the screw rod 5 to move forward and backward, thereby driving the slider to move forward and backward. When the slider moves forward, the contact force between the front end 601 of the slider and the outer tube 22 increases, and the outer tube 22 can be pushed forward. Because the outer tube 2 is sleeved on the inner tube, and the inner tube is fixed with the gun body, therefore, if the outer tube continues to move forward and the inner tube does not move, the ligation ring sleeved at the front end of the inner tube will be pushed out by the outer tube, and the inner tube absorbs the hemorrhoidal lesion, and the ligation ring pushed out will be pierced at the hemorrhoidal lesion.

[0028] As other options, the motor and the lead screw part can also be other structures, for example: the lead screw is a part of the motor, that is, a through-axis linear lead screw motor is used, and when the power is turned on and the motor rotates, the lead screw can move forward and backward.

[0029] The wrench 10 is fixed to the gun body 1 by bolts. The part of the wrench 10 extending out of the gun body is the wrench part, and the part of the wrench located in the gun body is the movable part. The wrench part is pulled to drive the movable part to move up and down. When the wrench part moves downward, the trigger drives the push end of the push rod 11 to move forward. The front end of the push rod 11 is connected to the rotary cutting connection tube 14 of the quick-release sleeve ligation tube assembly 2. When the wrench part moves downward, the wrench part gives the push rod a force. Because the push rod is arranged horizontally and is parallel to the crossbar part of the negative pressure tube, the push rod 11 is connected to the front end of the push rod 11. Figure 5 As shown, the force given by the wrench portion causes the trigger 10 to drive the push end 111 of the push rod 11 at the rear end to move forward, and the front end 112 of the push rod 11 is connected to the rotary cutting connecting tube 14 of the quick-release ligation tube assembly 2, so that the push rod can push the rotary cutting connecting tube 14 to move forward.

[0030] The push rod 11 is connected to the rotary cutting connection tube 14 through the connection block 13; specifically, a spring 12 is provided on the front end 112 of the push rod 11, and a convex ring is provided in the middle of the push rod 11. One end of the spring 12 abuts on the convex ring, and the other end abuts on the rear end of the connection block 13. The front end of the connection block 13 is fixed to the rotary cutting connection tube 14. Moreover, the rotary cutting connection tube 14 is clamped on the outer tube 21, and is not a fixed structure. Therefore, when the rotary cutting connection tube moves forward under the action of the push rod, the front end of the rotary cutting connection tube 14 is provided with a rotary cutting tube 15, and the front end of the rotary cutting tube 15 is a knife edge, which can cut the ligation ring provided in front of the rotary cutting tube 15 and cut off the ligation ring. The ligation ring that has been wrapped around the hemorrhoidal lesion will remain at the lesion after being cut off until the lesion becomes smaller and falls off after necrosis.

[0031] In this embodiment, the stroke control module usually pre-sets three strokes, one is half forward, one is full forward, and one is retract. The three preset strokes can increase the speed during use. When the negative pressure tube adsorbs the hemorrhoidal lesion, the first preset stroke is opened, half of the outer tube is pushed so that the ligation ring is located at the lesion, and then the second preset stroke is started, and the outer tube is continued to be pushed so that the ligation ring is tied at the lesion. After the ligation ring is tightened, the third preset stroke is started again, the outer tube is quickly retracted, and the second ligation ring is continued to be installed and continued to be used.

[0032] 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 and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electric hemorrhoid ligation gun with a wrench, comprising a gun body and a negative pressure tube, wherein the negative pressure tube is placed in the gun body, and the front end of the gun body is connected to a quick-release ligation tube assembly, wherein the quick-release ligation tube assembly comprises an outer tube, an inner tube and a rotary cutting connection tube, and is characterized in that: The invention also includes a circuit board, a motor, a screw rod, a slider, a trigger and a push rod. The circuit board is connected to the motor. The power output end of the motor is connected to the screw rod. The motor drives the screw rod to move forward and backward. The screw rod is fixed to the rear end of the slider. The front end of the slider is in contact with the outer tube. The wrench is fixed to the gun body by bolts. The part of the wrench extending out of the gun body is the wrench part. The part of the wrench located in the gun body is the movable part. The movable part is driven to move up and down by pulling the wrench part. When the wrench part moves downward, the trigger drives the pushing end of the push rod to move forward. The front end of the push rod is connected to the rotary cutting connecting tube of the quick-release sleeve ligation tube assembly.

2. The electric hemorrhoid ligation gun with a wrench according to claim 1 is characterized in that: A travel switch is arranged on the outer shell of the gun body, the travel switch is connected to a circuit board, and a travel control module is arranged in the circuit board.

3. The electric hemorrhoid ligation gun with a wrench according to claim 1 is characterized in that: The push rod is connected with the rotary cutting connecting pipe through a connecting block.

4. The electric hemorrhoid ligation gun with a wrench according to claim 1, characterized in that: A spring is arranged on the front end of the push rod, a convex ring is arranged in the middle of the push rod, one end of the spring abuts on the convex ring, and the other end abuts on the rear end of the connecting block, and the front end of the connecting block is fixed to the rotary cutting connecting pipe.

5. The electric hemorrhoid ligation gun with a wrench according to claim 1, characterized in that: The rotary cutting connecting pipe is clamped on the outer pipe, the front end of the rotary cutting connecting pipe is provided with a rotary cutting pipe, and the front of the rotary cutting pipe is provided with a ligation ring.

6. The electric hemorrhoid ligation gun with a wrench according to claim 1, characterized in that: The outer tube is sleeved on the inner tube, and the front end of the inner tube extends out of the outer tube, the ring opening of the tying ring is fixed on the inner tube extending out of the outer tube, and the rear end of the inner tube is connected with the gun body through a quick release head.

7. The electric hemorrhoid ligation gun with a wrench according to claim 1, characterized in that: A negative pressure switch is arranged on the gun body shell, and the negative pressure switch is connected with a closing valve on the negative pressure pipe.

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