Puncture force detection tool for puncture outfit

By introducing protective units and limiting units into the puncturer detection tool, the problems of accidentally touching the moving parts and loose fixtures are solved, safe and stable puncture force detection is achieved, and safety hazards are reduced.

CN120333683AActive Publication Date: 2025-07-18MGR BIOTECHNOLOGY (JIANGSU) CO LTD
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Patent Information

Application Number
CN202510781320.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-12
Publication Date
2025-07-18
Estimated Expiration
2045-06-12

AI Technical Summary

Technical Problem

During the operation of the existing puncture force detection tool, moving parts are prone to accidentally touch or limbs, causing squeeze, pinch or impact. The emergency stop function fails, which may impact the human body or object, and the clamp is loose, causing the sample to fall, which poses a safety hazard.

Method used

A puncture force detection tool for puncture device including a protective unit is designed, using a motor-driven gear worm structure and ball screw system, combined with a limiting unit and reset assembly to ensure safety and stability during the detection process, and prevent mistouching and loose fixtures.

Benefits of technology

Effectively protect staff safety, prevent mistouching and loose fixtures, ensure the stability of the detection process, reduce safety hazards, and avoid equipment damage and sample falls.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the field of puncture outfit detection, and discloses a puncture outfit puncture force detection tool which comprises a detector, the detector comprises a base and a lifting instrument, the lifting instrument is arranged on the top surface of the base, the top surface of the base is provided with a limiting base with a fixing function, the limiting base is located in front of the lifting instrument, and the output end of the lifting instrument is fixedly connected with a first electric telescopic rod; an assembling clamp with a pushing detection function is arranged at the lower end of the first electric telescopic rod, a reset assembly with a rebound function is arranged on the bottom face of the assembling clamp, a protection column is fixedly connected to the bottom face of the reset assembly, a cavity is formed in the protection column, and a protection unit with a protection function is arranged in the protection column. A limiting unit with a fixing function is arranged on the outer side face of the protection column and comprises a motor arranged on the inner side face of the protection column. The tool has the advantages that by arranging the structure of the protection unit, workers can be effectively prevented from getting close in the use process of the tool, and the situation that the workers touch the detection structure by mistake, and consequently the workers are hurt is avoided.
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Description

Technical Field

[0001] The present invention relates to the technical field of trocars, and in particular to a trocar puncture force detection tooling. Background Art

[0002] The trocar puncture force detection tooling is mainly used to simulate the mechanical environment during the puncture process of trocars (such as surgical trocars, blood collection needles, etc.). By accurately measuring parameters such as puncture force and displacement, it evaluates whether the performance of the trocar meets the standards. Its working principle is based on mechanical sensor technology, motion control technology, and data acquisition and analysis technology. The core is to convert the physical quantities during the puncture process into electrical signals and perform quantitative analysis.

[0003] When the moving parts such as linear guides, lead screws, and gears of the existing tooling are running, if the operator accidentally touches or a limb gets caught, it may cause extrusion, pinching, or bruising. When the puncture actuator (such as a push rod, fixture) moves quickly, if the emergency stop function fails, it may hit the human body or an object. If the trocar fixture or the simulator fixing device becomes loose, it may cause the sample to fall, injuring the feet or damaging the equipment. Therefore, it is necessary to provide a trocar puncture force detection tooling to solve the above problems. Summary of the Invention

[0004] In view of the above problems of a trocar puncture force detection tooling, the present invention is proposed.

[0005] Therefore, the object of the present invention is to provide a trocar puncture force detection tooling, which is used to solve the problems that when the moving parts such as linear guides, lead screws, and gears of the tooling are running, if the operator accidentally touches or a limb gets caught, it may cause extrusion, pinching, or bruising; when the puncture actuator moves quickly, if the emergency stop function fails, it may hit the human body or an object; if the trocar fixture or the simulator fixing device becomes loose, it may cause the sample to fall, injuring the feet or damaging the equipment, etc.

[0006] To solve the above technical problems, the present invention provides the following technical solution: A trocar puncture force detection tooling, comprising: a detector, the detector includes a base and a lifter, the lifter is arranged on the top surface of the base, a limiting base with a fixing function is arranged on the top surface of the base, and the limiting base is located in front of the lifter. The output end of the lifter is fixedly connected to a first electric telescopic rod, a assembling fixture with a pushing and detecting function is arranged at the lower end of the first electric telescopic rod, a reset assembly with a rebounding function is arranged on the bottom surface of the assembling fixture, the bottom surface of the reset assembly is fixedly connected to a protection column, a cavity is opened inside the protection column, a protection unit with a protection function is arranged inside the protection column, and a limiting unit with a fixing function is arranged on the outer side surface of the protection column; The protection unit includes a motor disposed on the inner side of the protection column. The output end of the motor is fixedly connected with a first gear through a shaft. A first connecting cylinder is disposed on the inner side of the protection column. A second gear is disposed on the outer side of the first connecting cylinder, and the first gear meshes with the second gear. Two first worm gears are fixedly connected to the outer side of the first connecting cylinder, and the first worm gears are located at the same distance on the front and rear sides of the second gear. Two second connecting cylinders are rotatably connected to the inner side of the protection column, and the second connecting cylinders are located above the first worm gears.

[0007] As a preferred solution of the puncture force detection tooling for a puncture device according to the present invention, wherein: a second worm gear is fixedly connected to the right side position of the outer wall of the second connecting cylinder. A third connecting cylinder is rotatably connected to the right side position of the inner side of the protection column, and the third connecting cylinder and the first connecting cylinder are horizontally arranged. Two second worm wheels are fixedly connected to the outer wall of the third connecting cylinder, and the second worm wheels mesh with the second worm gears. Ball screw rods are respectively disposed on the inner walls of the first connecting cylinder, the second connecting cylinder or the third connecting cylinder. A plurality of fixing brackets are disposed on the outer side of the protection column. A square frame is fixedly connected to the side of the fixing bracket away from the protection column. A rotating plate is rotatably connected to the bottom surface of the square frame through a shaft. A rubber block is fixedly connected between the ball screw rod and the rotating plate. Anti-slip stripes are provided between the top surface of the limit base and the bottom surface of the rotating plate.

[0008] As a preferred solution of the puncture force detection tooling for a puncture device according to the present invention, wherein: the assembly fixture includes a second electric telescopic rod, a pushing plug, a fixed cylinder and a fan-shaped door. The second electric telescopic rod is disposed on the bottom surface of the first electric telescopic rod. The pushing plug is fixedly connected to the output end of the second electric telescopic rod. The fixed cylinder is fixedly connected to the lower end of the first electric telescopic rod, and the first electric telescopic rod is located behind the second electric telescopic rod. The fan-shaped door is rotatably connected to the front side of the fixed cylinder, and the shaft between the fixed cylinder and the fan-shaped door is disposed at the right side position.

[0009] As a preferred solution of the puncture force detection tooling for a puncture device according to the present invention, wherein: the reset assembly includes a rubber sleeve disposed on the bottom surface of the fixed cylinder. A second telescopic rod is fixedly connected to the inner top surface of the rubber sleeve, and a second spring is sleeved on the outer wall of the second telescopic rod.

[0010] As a preferred solution of the puncture force detection tooling for a puncture device according to the present invention, wherein: the limit base includes a first telescopic shaft disposed on the inner wall of the base. A pressing plate is disposed between the top surfaces of the four first telescopic shafts. A first spring is sleeved on the outer wall of the first telescopic shaft, and the first spring is located between the pressing plate and the base.

[0011] As a preferred solution of a puncture force detection tooling for a puncture device according to the present invention, wherein: the limiting unit includes a curved plate disposed on the side of the rotating plate close to the protection column, a roller is slidably connected to the side of the curved plate close to the protection column, a push plate is rotatably connected to the cylindrical surface of the roller through a shaft, a sliding rod is fixedly connected to the side of the push plate close to the protection column, a first worm is fixedly connected to the outer wall of the sliding rod, a third spring is sleeved on the outer wall of the sliding rod, and a clamping plate is fixedly connected to the end of the second gear away from the roller, and the third spring is located between the limiting ring and the clamping plate.

[0012] As a preferred solution of a puncture force detection tooling for a puncture device according to the present invention, wherein: a circular limiting groove matching with the limiting ring is formed on the inner side surface of the protection column, and triangular stripes are provided between the curved plate and the outer wall of the roller.

[0013] Beneficial effects of the present invention: 1. By setting the structure of the protection unit, during the puncture force detection process of the detection tooling, the safety of the staff can be effectively protected, thereby preventing the staff from accidentally touching the detection structure and causing harm to themselves. After being injured, the protection unit structure can be quickly activated, and the puncture device can be safely operated. At the same time, through the protection unit structure, the puncture device clamp or the simulation object fixing device can be prevented from loosening, resulting in the sample falling and injuring the feet or damaging the equipment.

[0014] 2. Ensure the stability of the puncture device structure during the detection process, prevent the puncture device from deforming and breaking due to the problem of the force application point after contacting the object, ensure the safe operation of the puncture force detection tooling of the puncture device, and thus reduce the safety hazards of the existing detection tooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 It is a three-dimensional structure schematic diagram of a puncture force detection tooling for a puncture device of the present invention.

[0017] Figure 2 It is Figure 1 A front view full-section structural schematic diagram.

[0018] Figure 3 It is Figure 1 A top view full-section structural schematic diagram.

[0019] Figure 4This is a schematic diagram of a partial structure of the protection unit of a puncture force detection tooling for a puncture device according to the present invention.

[0020] Figure 5 This is a schematic diagram of the combined structure of a detector and a protection unit of a puncture force detection tooling for a puncture device according to the present invention.

[0021] Figure 6 This is a schematic diagram of the combined structure of a protection unit and a limiting unit of a puncture force detection tooling for a puncture device according to the present invention.

[0022] Reference numerals: 100, detector; 101, base; 102, elevator; 103, limiting base; 1031, pressing plate; 1032, first telescopic shaft; 1033, first spring; 104, first electric telescopic rod; 105, assembly fixture; 1051, second electric telescopic rod; 1052, pushing plug; 1053, fixed cylinder; 1054, fan-shaped door; 106, protection column; 107, reset assembly; 1071, rubber sleeve; 1072, second telescopic rod; 1073, second spring; 200, protection unit; 201, motor; 202, first gear; 203, first connecting cylinder; 204, second gear; 205, first worm; 206, ball screw; 207, rubber block; 208, rotating plate; 209, second connecting cylinder; 210, first worm gear; 211, second worm; 212, second worm gear; 213, fixed bracket; 214, square frame; 215, third connecting cylinder; 300, limiting unit; 301, curved plate; 302, pushing plate; 303, roller; 304, sliding rod; 305, limiting ring; 306, third spring; 307, clamping plate. Detailed implementation manners

[0023] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following will describe in detail the specific implementation manners of the present invention with reference to the accompanying drawings of the specification.

[0024] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar promotions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0025] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that can be included in at least one implementation manner of the present invention. The "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that excludes other embodiments.

[0026] Next, the present invention will be described in detail with reference to the schematic diagrams. When describing the embodiments of the present invention, for the convenience of explanation, the cross-sectional views showing the device structure will be enlarged locally not in accordance with the general scale, and the schematic diagrams are only examples and should not limit the scope of protection of the present invention herein. In addition, the three-dimensional spatial dimensions including length, width, and depth should be included in actual production. In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "mounted", "connected", "connected to", and "arranged" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that can communicate with each other; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Referring to Figures 1-6 , an embodiment of the present invention provides a puncture force detection tool for a trocar, which includes: a detector 100, the detector 100 includes a base 101 and a lifter 102, the lifter 102 is arranged on the top surface of the base 101, a limit base 103 with a fixing function is arranged on the top surface of the base 101, and the limit base 103 is located in front of the lifter 102. The output end of the lifter 102 is fixedly connected to a first electric telescopic rod 104. A mounting jig 105 with a pushing and detecting function is arranged at the lower end of the first electric telescopic rod 104. A reset assembly 107 with a rebounding function is arranged on the bottom surface of the mounting jig 105. A protection column 106 is fixedly connected to the bottom surface of the reset assembly 107. A cavity is formed inside the protection column 106. A protection unit 200 with a protection function is arranged inside the protection column 106. A limit unit 300 with a fixing function is arranged on the outer side surface of the protection column 106; The protection unit 200 includes a motor 201 disposed on the inner side of the protection column 106. The output end of the motor 201 is fixedly connected with a first gear 202 through a shaft. A first connecting cylinder 203 is disposed on the inner side of the protection column 106. A second gear 204 is disposed on the outer side of the first connecting cylinder 203, and the first gear 202 meshes with the second gear 204. Two first worm gears 205 are fixedly connected to the outer side of the first connecting cylinder 203, and the first worm gears 205 are located at the same distance on the front and rear sides of the second gear 204. Two second connecting cylinders 209 are rotatably connected to the inner side of the protection column 106, and the second connecting cylinders 209 are located above the first worm gears 205. A first worm wheel 210 is fixedly connected to the left side position of the outer wall of the second connecting cylinder 209, and the first worm gear 205 meshes with the first worm wheel 210. A second worm gear 211 is fixedly connected to the right side position of the outer wall of the second connecting cylinder 209. A third connecting cylinder 215 is rotatably connected to the right side position of the inner side of the protection column 106, and the third connecting cylinder 215 is horizontally arranged with the first connecting cylinder 203. Two second worm wheels 212 are fixedly connected to the outer wall of the third connecting cylinder 215, and the second worm wheels 212 mesh with the second worm gears 211. Ball screws 206 are respectively disposed on the inner walls of the first connecting cylinder 203, the second connecting cylinder 209 or the third connecting cylinder 215. A plurality of fixing brackets 213 are disposed on the outer side of the protection column 106. A square frame 214 is fixedly connected to the side of the fixing bracket 213 away from the protection column 106. A rotating plate 208 is rotatably connected to the bottom surface of the square frame 214 through a shaft. A rubber block 207 is fixedly connected between the ball screw 206 and the rotating plate 208; Specifically, when the device needs to be used, the overall tooling needs to be inspected to ensure that the tooling can be used normally. The assembly fixture 105 is enabled, and the puncture device is fixed inside the assembly fixture 105. Then, the parameters of the puncture device to be detected are adjusted through the assembly fixture 105. The simulated tissue material is placed between the base 101 and the limiting base 103. After the preparation work is completed, the structure of the protection unit 200 is started. In the structure of the protection unit 200, the motor 201 starts to drive the first gear 202 to rotate. The first gear 202 meshes with the second gear 204 to drive the first connecting cylinder 203 to rotate. The first connecting cylinder 203 drives the first worm 205 to rotate. The first worm 205 drives the second connecting cylinder 209 to rotate by meshing with the first worm gear 210. The second connecting cylinder 209 drives the third connecting cylinder 215 to rotate by meshing the second worm 211 with the second worm gear 212. After the motor 201 is started, the first connecting cylinder 203, the second connecting cylinder 209 and the third connecting cylinder 215 rotate at the same speed. During the rotation of the first connecting cylinder 203, the second connecting cylinder 209 and the third connecting cylinder 215, the sliders arranged on the inner walls cooperate with the ball screw 206, and the sliders are respectively fixedly connected to the first connecting cylinder 203, the second connecting cylinder 209 or the third connecting cylinder 215. So that the first connecting cylinder 203, the second connecting cylinder 209 and the third connecting cylinder 215 drive the ball screw 206 to move during the rotation process. During the movement of the ball screw 206, the rubber block 207 drives the rotating plate 208 to turn over at the bottom under the action of the square frame 214. By setting the rubber block 207, the ball screw 206 can make the rotating plate 208 and the square frame 214 in a high-angle state, which is convenient for the staff to operate. Then the device can be started for detection. During the detection process, the puncture device is fixed secondly through the structure of the limiting unit 300, so as to prevent the puncture device from sliding when encountering an object.

[0028] Refer to Figure 2 As shown, anti-slip stripes are provided between the top surface of the limiting base 103 and the bottom surface of the rotating plate 208; Specifically, when the structure of the protection unit 200 is used, the anti-slip stripes can improve the impact resistance of the rotating plate 208, thereby improving the protection level of the mechanism and the safety factor of the staff.

[0029] Refer to Figure 2As shown, the assembly fixture 105 includes a second electric telescopic rod 1051, a push plug 1052, a fixed cylinder 1053 and a fan-shaped door 1054. The second electric telescopic rod 1051 is arranged on the bottom surface of the first electric telescopic rod 104. The push plug 1052 is fixedly connected to the output end of the second electric telescopic rod 1051. The fixed cylinder 1053 is fixedly connected to the lower end of the first electric telescopic rod 104, and the first electric telescopic rod 104 is located behind the second electric telescopic rod 1051. The fan-shaped door 1054 is rotatably connected to the front side of the fixed cylinder 1053, and the axis between the fixed cylinder 1053 and the fan-shaped door 1054 is arranged at the right side position; Specifically, when it is necessary to clamp the puncture device, the fan-shaped door 1054 needs to be opened. The fan-shaped door 1054 is rotatably connected to the fixed cylinder 1053. At the same time, due to the frictional force structure on the surface, the fan-shaped door 1054 is in a stable state when it is closed. After the fan-shaped door 1054 is opened, the puncture device is placed below the push plug 1052 and accommodated in the cavity opened inside the protective column 106, and the position is fixed in cooperation with the structure of the limiting unit 300. Then, the second electric telescopic rod 1051 is adjusted by telescoping, so as to adjust the parameters of the puncture device to be detected, thus completing the detection.

[0030] Refer to Figure 2 As shown, the reset assembly 107 includes a rubber sleeve 1071 arranged on the bottom surface of the fixed cylinder 1053. The inner top surface of the rubber sleeve 1071 is fixedly connected with a second telescopic rod 1072, and the outer wall of the second telescopic rod 1072 is sleeved with a second spring 1073; Specifically, after the first electric telescopic rod 104 drives the protective column 106 to move downward, the structure of the rotating plate 208 will first contact the structure of the limiting base 103, so as to ensure the perfection of the protection. Then, the first electric telescopic rod 104 will drive the puncture device to continue to move to complete the detection task, thereby improving the safety of the puncture.

[0031] Refer to Figure 2 As shown, the limiting base 103 includes a first telescopic shaft 1032 arranged on the inner wall of the base 101. A pressing plate 1031 is arranged between the top surfaces of the four first telescopic shafts 1032. The outer wall of the first telescopic shaft 1032 is sleeved with a first spring 1033, and the first spring 1033 is located between the pressing plate 1031 and the base 101; Specifically, after the rotating plate 208 releases the pressing plate 1031, it will apply pressure to the pressing plate 1031. The pressing plate 1031 will apply pressure to the first telescopic shaft 1032 and the first spring 1033, causing the first telescopic shaft 1032 and the first spring 1033 to contract, so as to complete the fixation of the simulated tissue material such as silicone.

[0032] Refer to Figures 3-4 And Figure 6As shown, the limiting unit 300 includes a curved plate 301 disposed on the side of the rotating plate 208 close to the protection column 106. A roller 303 is slidably connected to the side of the curved plate 301 close to the protection column 106. A push plate 302 is rotatably connected to the cylindrical surface of the roller 303 through a shaft. A slide rod 304 is fixedly connected to the side of the push plate 302 close to the protection column 106. A first worm 205 is fixedly connected to the outer wall of the slide rod 304. A third spring 306 is sleeved on the outer wall of the slide rod 304. A clamping plate 307 is fixedly connected to the end of the second gear 204 away from the roller 303. And the third spring 306 is located between the limiting ring 305 and the clamping plate 307; Specifically, after the protection unit 200 structure is started, during the rotation and reset of the rotating plate 208, the curved plate 301 will apply pressure to the first gear 202 and the push plate 302, causing the push plate 302 to drive the slide rod 304 to slide inside the protection column 106. The slide rod 304 structure drives the clamping plate 307 structure to secondarily fix the puncture device, ensuring the stability of the puncture device structure during the detection process, preventing the puncture device from deforming and breaking due to the force when contacting an object, ensuring the safe operation of the puncture device detection tooling, and thus reducing the safety hazards of the existing detection tooling.

[0033] Refer to Figures 3-4 And Figure 6 As shown, a circular limiting groove matching the limiting ring 305 is formed on the inner side surface of the protection column 106. Triangular stripes are provided between the outer walls of the curved plate 301 and the roller 303; Specifically, by providing a limiting groove in the protection column 106 that matches the limiting ring 305, the push plate 302 is enabled to move along a defined trajectory, reducing the occurrence of deviation.

[0034] Working principle: When this device needs to be used, it is necessary to check the overall tooling to ensure that the tooling can be used normally. Open the assembly fixture 105 to fix the puncture device inside the assembly fixture 105, and then adjust the parameters of the puncture device to be detected through the assembly fixture 105. Place the simulated tissue material between the base 101 and the limit base 103. After the preparation work is completed, start the structure of the protection unit 200. In the structure of the protection unit 200, the motor 201 starts to drive the first gear 202 to rotate. The first gear 202 meshes with the second gear 204 to drive the first connecting cylinder 203 to rotate. The first connecting cylinder 203 drives the first worm 205 to rotate. The first worm 205 drives the second connecting cylinder 209 to rotate by meshing with the first worm gear 210. The second connecting cylinder 209 drives the third connecting cylinder 215 to rotate by meshing the second worm 211 with the second worm gear 212. After the motor 201 is started, the first connecting cylinder 203, the second connecting cylinder 209, and the third connecting cylinder 215 rotate at the same speed. During the rotation of the first connecting cylinder 203, the second connecting cylinder 209, and the third connecting cylinder 215, the sliders provided on the inner walls cooperate with the ball screw 206, so that the first connecting cylinder 203, the second connecting cylinder 209, and the third connecting cylinder 215 drive the ball screw 206 to move during the rotation. During the movement of the ball screw 206, the rubber block 207 drives the rotating plate 208 to flip on the bottom surface under the action of the square frame 214. By setting the rubber block 207, the ball screw 206 can keep the rotating plate 208 and the square frame 214 at a high angle state, which is convenient for the staff to operate. Then the device can be started for detection. During the detection process, the puncture device is fixed again through the structure of the limit unit 300, so as to prevent the puncture device from sliding when encountering an object, resulting in parameter errors. Contact stage: The needle tip contacts the simulated object and the force value starts to rise; Puncture stage: The needle tip penetrates the simulated object, and the puncture force value drops rapidly after reaching the peak; Stable stage: The needle tip completely enters the simulated object, and the needle-holding force value tends to be stable. The system automatically records parameters such as the puncture force peak value, average force value, puncture depth, and puncture time, and generates a force-displacement curve, thus completing the detection task. Clean the simulated object debris on the fixture and the platform, and disinfect the contact part of the puncture device. By setting the structure of the protection unit 200, during the puncture force detection of the detection tooling, the safety of the staff can be effectively protected, so as to prevent the staff from being injured due to accidentally touching the detection structure. After being injured, the structure of the protection unit 200 can be quickly started, and the puncture device can be safely operated. At the same time, through the structure of the protection unit 200, it is possible to prevent the puncture device fixture or the simulated object fixing device from loosening, resulting in the sample falling and injuring the feet or damaging the equipment.

[0035] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A puncture force detection tooling for a trocar, characterized in that, Comprising: A detector (100), the detector (100) includes a base (101) and a lifter (102), the lifter (102) is arranged on the top surface of the base (101), a limiting base (103) with a fixing function is arranged on the top surface of the base (101), and the limiting base (103) is located in front of the lifter (102). The output end of the lifter (102) is fixedly connected to a first electric telescopic rod (104). A assembling fixture (105) with a pushing and detecting function is arranged at the lower end of the first electric telescopic rod (104). A reset assembly (107) with a rebounding function is arranged on the bottom surface of the assembling fixture (105). A protection column (106) is fixedly connected to the bottom surface of the reset assembly (107). A cavity is formed inside the protection column (106). A protection unit (200) with a protection function is arranged inside the protection column (106). A limiting unit (300) with a fixing function is arranged on the outer side surface of the protection column (106); The protection unit (200) includes a motor (201) arranged on the inner side surface of the protection column (106). The output end of the motor (201) is fixedly connected to a first gear (202) through a shaft. A first connecting cylinder (203) is arranged on the inner side surface of the protection column (106). A second gear (204) is arranged on the outer side surface of the first connecting cylinder (203), and the first gear (202) meshes with the second gear (204). Two first worm gears (205) are fixedly connected to the outer side surface of the first connecting cylinder (203), and the first worm gears (205) are located at positions with the same distance before and after the second gear (204). Two second connecting cylinders (209) are rotatably connected to the inner side surface of the protection column (106), and the second connecting cylinders (209) are located above the first worm gears (205). A first worm wheel (210) is fixedly connected to the left side position of the outer wall of the second connecting cylinder (209). The first worm gear (205) meshes with the first worm wheel (210).

2. The puncture force detection tooling for a puncture device according to claim 1, characterized in that: On the right side of the outer wall of the second connecting cylinder (209), a second worm (211) is fixedly connected. On the right side of the inner surface of the protective column (106), a third connecting cylinder (215) is rotatably connected. The third connecting cylinder (215) and the first connecting cylinder (203) are horizontally arranged. On the outer wall of the third connecting cylinder (215), two second worm wheels (212) are fixedly connected, and the second worm wheels (212) are meshed with the second worm (211). Inside the first connecting cylinder (203), the second connecting cylinder (209), or the third connecting cylinder (215), a ball screw (206) is respectively arranged. On the outer surface of the protective column (106), a plurality of fixed brackets (213) are arranged. On the side of the fixed bracket (213) away from the protective column (106), a square frame (214) is fixedly connected. On the bottom surface of the square frame (214), a rotating plate (208) is rotatably connected by a shaft. Between the ball screw (206) and the rotating plate (208), a rubber block (207) is fixedly connected. Anti-slip stripes are arranged between the top surface of the limit base (103) and the bottom surface of the rotating plate (208).

3. A puncture force detection tooling for a puncture device according to claim 1, characterized in that: The assembly fixture (105) includes a second electric telescopic rod (1051), a push plug (1052), a fixed cylinder (1053), and a fan-shaped door (1054). The second electric telescopic rod (1051) is arranged on the bottom surface of the first electric telescopic rod (104). The push plug (1052) is fixedly connected to the output end of the second electric telescopic rod (1051). The fixed cylinder (1053) is fixedly connected to the lower end of the first electric telescopic rod (104), and the first electric telescopic rod (104) is located behind the second electric telescopic rod (1051). The fan-shaped door (1054) is rotatably connected to the front surface of the fixed cylinder (1053), and the shaft between the fixed cylinder (1053) and the fan-shaped door (1054) is arranged on the right side.

4. The puncture force detection tooling for a puncture device according to claim 3, characterized in that: The reset assembly (107) includes a rubber sleeve (1071) arranged on the bottom surface of the fixed cylinder (1053). On the inner top surface of the rubber sleeve (1071), a second telescopic rod (1072) is fixedly connected. A second spring (1073) is sleeved on the outer wall of the second telescopic rod (1072).

5. A puncture force detection tooling for a puncture device according to claim 1, characterized in that: The limit base (103) includes a first telescopic shaft (1032) arranged on the inner wall of the base (101). Between the top surfaces of the four first telescopic shafts (1032), a pressing plate (1031) is arranged. A first spring (1033) is sleeved on the outer wall of the first telescopic shaft (1032), and the first spring (1033) is located between the pressing plate (1031) and the base (101).

6. The puncture force detection tooling for a trocar according to claim 1, characterized in that: The limiting unit (300) includes a curved plate (301) arranged on the side of the rotating plate (208) close to the protective column (106). A roller (303) is slidably connected to the side of the curved plate (301) close to the protective column (106). A push plate (302) is rotationally connected to the cylindrical surface of the roller (303) through a shaft. A sliding rod (304) is fixedly connected to the side of the push plate (302) close to the protective column (106). A first worm (205) is fixedly connected to the outer wall of the sliding rod (304). A third spring (306) is sleeved on the outer wall of the sliding rod (304). A clamping plate (307) is fixedly connected to one end of the second gear (204) away from the roller (303), and the third spring (306) is located between the limiting ring (305) and the clamping plate (307).

7. The puncture force detection tooling for a trocar according to claim 6, characterized in that: A circular limiting groove matching the limiting ring (305) is formed on the inner side surface of the protective column (106). Triangular stripes are provided between the outer walls of the curved plate (301) and the roller (303).

Citation Information

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