Rack structure for stroke control in electric medical instrument

Abstract

The utility model discloses a rack structure for stroke control in an electric medical instrument, which comprises a rack, the rack is horizontally arranged in a cavity of an anastomat, teeth meshed with a motor output gear are arranged on the end face of one side of the rack in the horizontal plane direction, and an open groove is arranged on the end face of the other side of the rack. An opening module for marking the stroke position of the rack is arranged on the side wall of any side of the slot, a switch assembly for controlling the stroke of the rack is arranged at the position, close to one end of the motor, of the rack, the switch assembly is fixed in the anastomat and electrically connected with the motor, and the stroke of the rack is controlled by detecting the position of the opening module of the rack.

Description

Technical Field

[0001] The utility model relates to the field of medical devices, in particular to a rack structure for stroke control in electric medical devices. Background Art

[0002] Staplers are medical devices used to replace manual suturing. Their primary working principle is to separate or staple tissue using titanium staples, similar to a stapler. Compared to traditional manual suturing, the advantages of using a stapler are: 1. It is simple and convenient to operate, saving surgical time; 2. It uses titanium or stainless steel staples (skin staplers) to achieve a tight, moderately tight suture; 3. It results in a smaller wound surface, resulting in fewer side effects for the patient and a greater likelihood of complications.

[0003] In the existing designs on the market, several travel switches are set in the instrument body. Different travel switches control different firing states of the rack in the electric stapler. Such a design requires that multiple travel switches be set on the rack in the instrument body to control the travel stroke of the rack. The overall design structure is relatively cumbersome. Once any travel switch has a problem, the stapler will fail. To address this problem, this application proposes a solution. Summary of the Invention

[0004] Purpose of the utility model: The purpose of the utility model is to provide a rack structure for stroke control in electric medical devices, which simplifies the rack stroke control structure and can achieve precise control of the rack stroke.

[0005] Technical solution: The utility model describes a rack structure for stroke control in an electric medical device, comprising a rack, characterized in that: the rack is horizontally arranged in the cavity of the anastomosis device, and the end face of the rack on one side in the horizontal plane direction is provided with teeth meshing with the motor output gear, and the end face on the other side is provided with a slot, and an opening module for marking the rack stroke position is provided on the side wall on either side of the slot, and the opening module includes an initial opening, an end limit opening, multiple stroke openings and a tail limit opening, and a switch assembly for controlling the rack stroke is provided at the slot near one end of the motor, and the switch assembly is fixed in the anastomosis device and electrically connected to the motor, and the rack stroke is controlled by detecting the position of the rack opening module.

[0006] Preferably, when the rack is in the initial state, the switch assembly faces the initial opening in the opening module and limits the initial port of the slot; when the rack is in the firing completed state, the switch assembly limits the tail port of the slot.

[0007] Preferably, the positions of the multiple stroke openings on the rack match the multiple strokes that the rack needs to fire.

[0008] Preferably, the switch assembly includes an end safety travel switch, a photoelectric switch and a tail safety travel switch, and the tail safety travel switch, the photoelectric switch and the end safety travel switch are fixedly arranged inside the stapler in sequence along the axial direction of the rack.

[0009] Preferably, the limit block in the end safety travel switch is pressed down to the initial port of the slot when the rack is in the initial state, triggering the conduction state.

[0010] Preferably, the photoelectric switch penetrates the initial opening in the opening module when the rack is in the initial state, and penetrates different stroke openings when the rack is in different strokes.

[0011] Preferably, the limit block in the tail safety travel switch is pressed down to the slotted tail port buckle when the rack is in the firing completed state, thereby completing the limitation of the rack.

[0012] Beneficial effects: Compared with the prior art, the present invention has the following advantages:

[0013] The overall structure of this application is simple. The traditional multiple travel switches are simplified into two travel switches and one photoelectric switch. The different travels of the rack are judged and the travel is controlled by judging whether the photoelectric switch penetrates different openings on the rack. The limit before and after firing is completed by the travel switch. The control of the rack travel is completed on the basis of simplifying the structure, which is suitable for market promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional structural diagram of the utility model when installed in the anastomosis device.

[0015] Figure 2 It is a three-dimensional structural diagram of the rack in the utility model.

[0016] Figure 3 It is a front view of the utility model.

[0017] Figure 4 It is a rear view of the present invention.

[0018] Figure 5 This is a cross-sectional view of the end safety travel switch and the slot of the rack in the initial state of the utility model.

[0019] Among them: 1. Rack; 2. Motor; 3. Slot; 4. Initial opening; 5. End limit opening; 6. Stroke opening; 7. Tail limit opening; 8. End safety travel switch; 9. Photoelectric switch; 10. Tail safety travel switch; 11. Output gear;. DETAILED DESCRIPTION

[0020] The technical solution of the present utility model will be further described below with reference to the accompanying drawings.

[0021] See attached Figures 1 to 5 Figure, the utility model shows a rack structure for stroke control in an electric medical device, including a rack 1, which is horizontally arranged in the cavity of the anastomosis device, and the end face of the rack on one side in the horizontal plane is provided with teeth meshing with the output gear 11 of the motor 2. The motor 2 rotates to control the displacement of the rack 1 on the horizontal plane, and a slot 3 is provided on the end face on the other side of the rack 1. An opening module for marking the stroke position of the rack is provided on the side wall on either side of the slot 3, and the opening module includes an initial opening 4 and a plurality of stroke openings 5.

[0022] In this embodiment, a switch assembly for controlling the stroke of the rack 1 is provided at the slot 3 at one end of the rack 1 near the motor 2. The switch assembly is fixed in the anastomosis device and electrically connected to the motor 2. The stroke of the rack 1 is controlled by detecting the position of the opening module in the rack 1.

[0023] In this embodiment, when the rack 1 is in the initial state, the switch assembly is opposite to the initial port 4 in the opening module and limits the initial port 6 of the slot 3. When the rack 1 is in the fired state, the switch assembly limits the tail port 7 of the slot 3. At the same time, the positions of the multiple stroke openings 5 ​​on the rack 1 match the multiple strokes that the rack 1 needs to fire.

[0024] In this embodiment, the switch assembly includes an end safety travel switch 8, a photoelectric switch 9 and a tail safety travel switch 10, wherein the tail safety travel switch 10, the photoelectric switch 9 and the end safety travel switch 8 are fixedly arranged in sequence inside the anastomosis device along the axial direction of the rack 1.

[0025] In this embodiment, the limit block in the end safety travel switch 8 is pressed down to the initial port 6 in the slot 3 when the rack 1 is in the initial state, triggering the conductive state.

[0026] In this embodiment, the photoelectric switch 9 penetrates the initial opening 4 in the opening module when the rack 1 is in the initial state, and penetrates different stroke openings 5 ​​when the rack 1 is in different strokes.

[0027] In this embodiment, the limit block in the tail safety travel switch 10 is pressed down to the tail port 7 in the slot 3 when the rack 1 is in the firing completed state, thereby completing the limitation of the rack 1.

[0028] When the present application is in operation, when the rack 1 starts to fire, the limit block of the end safety travel switch 8 in the switch assembly is pressed down to the initial port 6 in the slot 3, triggering the conduction state of the end safety travel switch 8. At this time, the photoelectric switch 9 penetrates the initial port 4. When the rack 1 is in the firing process, the limit blocks in the end safety travel switch 8 and the tail safety travel switch 10 both pop up, and the end safety travel switch 8 and the tail safety travel switch 10 are in the disconnected state. When the rack 1 fires to different working strokes, the photoelectric switch 9 penetrates different stroke openings 5. At this time, the motor 2 receives the signal and stops rotating, and the rack 1 stops firing and stays at different strokes. When the rack 1 has completed firing, the tail safety travel switch 10 is in the open conduction state, and the limit block in the tail safety travel switch 10 is pressed down to the tail port of the slot 3, completing the limiting of the rack 1 to prevent further firing caused by misoperation, and the entire working process is completed.

Claims

1. A rack structure for stroke control in an electric medical device, comprising a rack, characterized in that: The rack is horizontally arranged in the cavity of the anastomosis device, and the end face of the rack on one side in the horizontal plane direction is provided with teeth meshing with the motor output gear, and the end face on the other side is provided with a slot, and an opening module marking the rack stroke position is provided on the side wall on either side of the slot, and the opening module includes an initial opening and multiple stroke openings. The slot of the rack near one end of the motor is provided with a switch component for controlling the rack stroke, and the switch component is fixed in the anastomosis device and electrically connected to the motor. The rack stroke is controlled by detecting the position of the rack opening module.

2. A rack structure for stroke control in an electric medical device according to claim 1, characterized in that: When the rack is in the initial state, the switch assembly faces the initial opening in the opening module and limits the initial end of the slot; when the rack is in the firing completed state, the switch assembly limits the tail end of the slot.

3. The rack structure for stroke control in an electric medical device according to claim 1, characterized in that: The positions of the multiple stroke openings on the rack match the multiple strokes that the rack needs to fire.

4. The rack structure for stroke control in an electric medical device according to claim 1, characterized in that: The switch assembly includes an end safety travel switch, a photoelectric switch and a tail safety travel switch. The tail safety travel switch, the photoelectric switch and the end safety travel switch are fixedly arranged inside the stapler in sequence along the axial direction of the rack.

5. The rack structure for stroke control in an electric medical device according to claim 4, characterized in that: The limit block in the end safety travel switch is pressed down to the initial end of the slot when the rack is in the initial state.

6. The rack structure for stroke control in an electric medical device according to claim 4, characterized in that: The photoelectric switch penetrates the initial opening in the opening module when the rack is in the initial state, and penetrates different stroke openings when the rack is in different strokes.

7. The rack structure for stroke control in an electric medical device according to claim 4, characterized in that: The limit block in the tail safety travel switch is pressed down to the slotted tail port when the rack is in the firing completed state.

Images