Needle tube and catheter assembling tool for indwelling needle production

Abstract

The utility model relates to the technical field of indwelling needle production, in particular to a needle tube and catheter assembling tool for indwelling needle production. Comprising two side plates fixed to the bottom plate, a rotating plate is arranged between the two side plates, a plugging seat is fixed to the upper end of the rotating plate, rotating shafts are fixed to the two ends of the rotating plate, and the rotating shafts are rotationally connected with the side plates on one sides of the rotating shafts; a first check block is fixed to the rear side of the rotating shaft, a second check block is fixed to the front side of the rotating shaft, a supporting plate is fixed to the side plate below the rotating shaft, the lower end of the first check block makes contact with the upper end of the supporting plate, the first check block is connected with the side plate through a tension spring, and a pressing plate is slidably connected to the clamping assembly between the two side plates in the vertical direction and connected with the clamping assembly through a spring. The lower end of the pressing plate contacts with the upper end of the rotating plate. The angle of the rotating plate does not need to be manually intervened, the operation complexity is reduced, and the insertion success rate is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of indwelling needle production technology, more particularly to a needle tube catheter assembly tool for indwelling needle production. BACKGROUND

[0002] With the rise and development of indwelling needle products, based on its advanced role and advantages, the demand for indwelling needles in medical treatment is increasing. However, the production process of indwelling needle related products is relatively complex.

[0003] The utility model discloses a kind of needle tube catheter assembly mechanisms of indwelling needle provided in Chinese utility model patent with disclosure No.CN211759615U, the assembly mechanism includes support frame, stand, servo motor, parallel open-close jaw cylinder, guide jaw component and transplanting carrying component, stand is set on the side of support frame upper portion, servo motor is movably set on stand respectively and is connected with parallel open-close jaw cylinder and transplanting carrying component, guide jaw component is connected with parallel open-close jaw cylinder respectively and located the side of stand. Through the above-mentioned mode, needle tube catheter assembly mechanism realizes to assemble needle tube into catheter. But the above-mentioned needle tube catheter assembly mechanism, in the process of moving needle tube, lack needle tube positioning function, cannot accurately judge whether needle tube is aligned catheter, needle tube is easily inserted empty, needle tube and catheter assembly success rate is low, in addition, the above-mentioned assembly mechanism structure is complex, production cost is high, and it is not convenient to repair.

[0004] In order to solve the problems of the above-mentioned patent, the patent file with publication number CN218983870U discloses a needle tube catheter assembly tool for indwelling needle production, which comprises a needle tube positioning mechanism, the needle tube positioning mechanism comprises a plug seat, a rotating plate, a first positioning block, a second positioning block and two vertical plates, the plug seat is vertically installed on the upper end face of the rotating plate, the upper end face of the plug seat is coaxially provided with a containing groove for coaxially inserting the needle tube, the two vertical plates are vertically arranged on the two sides of the rotating plate, and the rotating plate is horizontally and rotationally installed on the two vertical plates, the first positioning block and the second positioning block are installed on the two sides of the rotating plate and rotate with the rotating plate, the two vertical plates are provided with a first limiting block and a second limiting block corresponding to the first positioning block and the second positioning block respectively, and the rotating plate is limited in the rotating angle range through the cooperation of the first positioning block, the first limiting block, the second positioning block and the second limiting block; the catheter assembly mechanism comprises a lifting plate and a pair of clamping jaws, the lifting plate is horizontally arranged on one side of the rotating plate and is driven to move up and down by a first driving element, the pair of clamping jaws are movably installed on the upper end face of the lifting plate and are close to one side of the rotating plate, and move with the lifting plate, the pair of clamping jaws are arranged above the plug seat and are driven to move close to or away from each other by a second driving element. The rotating plate is at the feeding and discharging station, the first positioning block is limited by the first limiting block, the operator manually places the needle tube in the containing groove, pre-assembles the catheter on the top of the needle tube, manually presses the upper end face of the rotating plate, and rotates the rotating plate to the catheter assembly station, the rotating plate is limited by the second positioning block and the second limiting block, the needle tube pre-assembled with the catheter is rotated to the pair of clamping jaws, the second positioning block is in contact with the pressure sensor, the controller receives the signal transmitted by the pressure sensor, starts the second driving element, drives the clamping jaws to clamp the catheter, starts the first driving element, drives the lifting plate to move downward, the lifting plate drives the catheter to move downward through the clamping jaws, and the catheter is completely assembled outside the needle tube, the second driving element 17 drives the clamping jaws to release the catheter, the operator releases the rotating plate to cancel the pressing, the rotating plate automatically rotates to the feeding and discharging station under the action of the counterweight gravity, the first driving element drives the lifting plate to move upward, the lifting plate drives the clamping jaws to move upward and reset, the operator takes down the needle tube with the assembled catheter, and the operation is completed. After placing the needle tube in the containing groove, the operator needs to manually rotate the rotating plate and stabilize the rotating plate, the labor intensity of the worker is increased, and the needle tube and the sleeve are prone to fail to be inserted after the rotating plate is rotated. Utility model content

[0005] The main purpose of the utility model is to provide a needle tube catheter assembly tool for indwelling needle production, which can reduce the labor intensity of workers and ensure effective insertion of the needle tube and the catheter.

[0006] In order to achieve the above-mentioned purpose, the technical scheme provided by the utility model is:

[0007] The needle tube guide pipe assembly tool for indwelling needle production comprises a bottom plate, a clamping unit capable of clamping the guide pipe and then descending is fixed to the upper end of the bottom plate, a needle tube positioning mechanism is arranged on the bottom plate below the clamping unit, the needle tube positioning mechanism comprises two side plates fixed to the bottom plate, a rotating plate is arranged between the two side plates, a plug-in seat is fixed to the upper end of the rotating plate, rotating shafts are fixed to the two ends of the rotating plate, the rotating shafts are rotatably connected to the side plate on one side, a first block in the shape of inverted L is fixed to the rear side of the rotating shaft, a second block is fixed to the front side of the rotating shaft, a supporting plate is fixed to the side plate below the rotating shaft, the lower end of the first block is in contact with the upper end of the supporting plate, the upper end face of the first block, the upper end face of the rotating plate and the horizontal plane are parallel, the first block is connected to the side plate through a tension spring, a pressing plate is slidably connected to the clamping assembly between the two side plates in the vertical direction, the pressing plate is connected to the clamping assembly through a spring, the lower end of the pressing plate is in contact with the upper end of the rotating plate, the elastic force of the spring is greater than that of the tension spring, and the pressing plate limits the rotation of the rotating plate.

[0008] Specifically, the clamping unit comprises guide rails fixed to the bottom plate, the guide rails are vertically arranged, a lifting plate is slidably arranged in the vertical direction of the guide rails, a first cylinder vertically arranged is fixed to the guide rails, the telescopic end of the first cylinder is fixedly connected to the lifting plate, two clamping plates are slidably arranged on the upper end of the lifting plate, the two clamping plates are symmetrically arranged according to the axis of the plug-in seat, the clamping plates are connected to the lifting plate through a second cylinder, the sliding direction of the clamping plates is perpendicular to the sliding direction of the lifting plate, arc-shaped grooves are formed in the vertical direction of the opposite end faces of the two clamping plates, and the two arc-shaped grooves are symmetrically arranged according to the axis of the plug-in seat.

[0009] Specifically, the pressing plate penetrates the lifting plate, and the pressing plate is slidably connected to the lifting plate.

[0010] Specifically, an upper stopper is fixed to the pressing plate above the lifting plate, a lower stopper is fixed to the pressing plate below the lifting plate, and the spring is connected to the lower stopper and the lifting plate.

[0011] Specifically, a sliding groove is formed in the upper end of the lifting plate, and a sliding block is fixed to the lower end of the clamping plate and slidably arranged in the sliding groove.

[0012] Specifically, the first cylinder is in communication with a first electromagnetic valve, the first electromagnetic valve is in communication with a gas source, the second cylinder is in communication with a second electromagnetic valve, the second electromagnetic valve is in communication with the gas source, and the first electromagnetic valve, the second electromagnetic valve, a controller and a control panel are electrically connected.

[0013] Specifically, a horizontal detector is fixed to the upper end face of the first block, and the horizontal detector is electrically connected to the controller.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] 1. When the pressure plate is pressed down, the rotating plate is forced to return to a horizontal position, ensuring that the needle and guide tube clamping positions in the insertion / removal seat are strictly concentric, avoiding misalignment during insertion. After the pressure plate is released, the tension spring automatically rebounds, tilting the rotating plate to facilitate manual loading and unloading operations. This utility model achieves automatic switching between horizontal and tilted positions of the rotating plate through the linkage design of the rotating plate, the first stop, the second stop, and the tension spring, combined with the elastic force control of the pressure plate and the spring. No manual intervention is required to adjust the rotating plate angle, reducing operational complexity and improving the insertion success rate.

[0016] 2. The level detector monitors the level of the first stop block in real time and the status of the needle tube inside the reaction plug socket. If tilting is detected (such as due to deviation caused by component wear), the first cylinder will stop running immediately to prevent batch defects caused by positioning deviation.

[0017] 3. The pressure plate is flexibly connected to the lifting plate via a spring, which automatically compensates for the slight displacement when the rotating plate resets during the pressing process, thus avoiding component damage caused by rigid impact.

[0018] 4. The moving parts such as guide rails, lifting plates, and clamps are independently modularized, supporting single-point fault repair without affecting the overall equipment operation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the present invention.

[0020] Figure 2 This is a front view of the present invention.

[0021] Figure 3 This is a top view of the present invention.

[0022] Figure 4 This is a schematic diagram of the rotating plate after it has separated from the pressure plate.

[0023] The components in the attached diagram are named as follows: 1. Base plate, 2. Side plate, 3. Rotating plate, 4. Rotating shaft, 5. First stop block, 6. Support plate, 7. Second stop block, 8. Tension spring, 9. Guide rail, 10. First cylinder, 11. Lifting plate, 12. Pressure plate, 13. Clamping plate, 14. Second cylinder, 15. Plug-in socket, 16. Spring, 17. Upper stop block, 18. Lower stop block, 19. Slide groove, 20. Slider, 21. Arc groove, 22. Leveling instrument. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example 1: Refer to Figures 1-4The needle tube guide pipe assembly tool for indwelling needle production is shown, including a base plate 1, a clamping unit capable of clamping the guide pipe and then descending is fixed at the upper end of the base plate 1, a needle tube positioning mechanism is arranged on the base plate 1 below the clamping unit.

[0026] The needle tube positioning mechanism includes two side plates 2 fixed on the base plate 1, a rotating plate 3 is arranged between the two side plates 2, and a plug seat 15 is fixed at the upper end of the rotating plate 3.

[0027] Rotating shafts 4 are fixed at both ends of the rotating plate 3, the rotating shafts 4 are rotationally connected to the side plates 2 on one side, a first stop block 5 in an inverted L shape is fixed at the rear side of the rotating shaft 4, and a second stop block 7 is fixed at the front side of the rotating shaft 4. A supporting plate 6 is fixed on the side plate 2 below the rotating shaft 4. The lower end of the first stop block 5 is in contact with the upper end of the supporting plate 6. The upper end surface of the first stop block 5, the upper end surface of the rotating plate 3 and the horizontal plane are parallel. The first stop block 5 is connected to the side plate 2 through a tension spring 8.

[0028] A pressing plate 12 is slidably connected to the clamping assembly in the vertical direction between the two side plates 2, the pressing plate 12 is connected to the clamping assembly through a spring 16, the lower end of the pressing plate 12 is in contact with the upper end of the rotating plate 3, and the elastic force of the spring 16 is greater than that of the tension spring 8. The pressing plate 12 limits the rotation of the rotating plate 3.

[0029] The clamping unit includes guide rails 9 fixed on the base plate 1, the guide rails 9 are vertically arranged, a lifting plate 11 is slidably arranged in the vertical direction of the guide rails 9, first air cylinders 10 vertically arranged are fixed on the guide rails 9, and the extension end of the first air cylinders 10 is fixedly connected to the lifting plate 11.

[0030] Specifically, the pressing plate 12 penetrates the lifting plate 11, and the pressing plate 12 is slidably connected to the lifting plate 11. An upper stop block 17 is fixed on the pressing plate 12 above the lifting plate 11, a lower stop block 18 is fixed on the pressing plate 12 below the lifting plate 11, and the spring 16 connects the lower stop block 18 and the lifting plate 11.

[0031] Two clamping plates 13 are slidably arranged at the upper end of the lifting plate 11, and the sliding direction of the clamping plates 13 is perpendicular to the sliding direction of the lifting plate 11. The two clamping plates 13 are symmetrically arranged according to the axis of the plug seat 15. Specifically, a sliding groove 19 is formed at the upper end of the lifting plate 11, a sliding block 20 is fixed at the lower end of the clamping plate 13, and the sliding block 20 is slidably arranged in the sliding groove 19.

[0032] The clamping plate 13 is connected to the lifting plate 11 through the second air cylinder 14.

[0033] Arc-shaped grooves 21 are formed in the vertical direction of the opposite end faces of the two clamping plates 13, and the two arc-shaped grooves 21 are symmetrically arranged according to the axis of the plug seat 15.

[0034] The first cylinder 10 is communicated with a first electromagnetic valve, the first electromagnetic valve is communicated with a gas source, the second cylinder 14 is communicated with a second electromagnetic valve, the second electromagnetic valve is communicated with the gas source, and the first electromagnetic valve, the second electromagnetic valve, the controller and the control panel are electrically connected.

[0035] In operation, the first cylinder 10 is started through the control panel, the first cylinder 10 drives the lifting plate 11 and the clamping plate 13 to move upwards, when the upper stopper 17 contacts with the lifting plate 11, the lifting plate 11 drives the pressing plate 12 to move upwards, in the process of moving upwards of the pressing plate 12, under the elastic force of the tension spring 8, the rotating plate 3 rotates to the front side, and the rotating shaft 4, the first stopper 5 and the second stopper 7 rotate with the rotating plate 3. Figure 4 As shown in the figure, when the second stopper 7 contacts with the supporting plate 6, the rotating plate 3 is in an inclined state.

[0036] Then the catheter is placed between the two clamping plates 13 and corresponds to the arc-shaped groove 21. At the same time, the two second cylinders 14 are started, the two clamping plates 13 move close to each other and clamp the catheter.

[0037] Then the first cylinder 10 is started, the first cylinder 10 drives the lifting plate 11, the clamping plate 13, the catheter and the pressing plate 12 to move downwards. When the lower end of the pressing plate 12 contacts with the upwardly inclined side of the lifting plate 11, in the process of moving downwards of the pressing plate 12, the rotating plate 3 rotates to the back side, because the elastic force of the spring 16 is greater than the elastic force of the tension spring 8, when the lower end of the first stopper 5 contacts with the upper end of the supporting plate 6, the upper end surface of the rotating plate 3, the upper end surface of the first stopper 5 and the horizontal plane are parallel, the needle tube and the catheter are concentric. In the subsequent process of moving downwards of the lifting plate 11, the pressing plate 12 is blocked by the rotating plate 3 and keeps still, and the spring 16 is compressed. When the needle tube is inserted into the catheter, the two second cylinders 14 are started, so that the two clamping plates 13 move away from each other and release the catheter.

[0038] Then the lifting plate 11 moves upwards, when the lower end of the pressing plate 12 separates from the rotating plate 3, under the elastic force of the tension spring 8, the rotating plate 3 rotates to the front side, and the rotating shaft 4, the first stopper 5 and the second stopper 7 rotate with the rotating plate 3. Figure 4 As shown in the figure, when the second stopper 7 contacts with the supporting plate 6, the rotating plate 3 is in an inclined state.

[0039] Example two: based on example one, referring to Figure 1 and Figure 3 The upper end surface of the first stopper 5 is fixed with a horizontal detector 22, and the horizontal detector 22 is electrically connected with the controller.

[0040] Due to the repeated impact of the lower end of the first block 5 on the supporting plate 6, the lower end of the first block 5 and the position of the supporting plate 6 in contact with the lower end of the first block 5 will be worn, which will cause the upper end surface of the rotating plate 3 and the upper end surface of the first block 5 to be non-parallel to the horizontal plane after the first block 5 limits the rotating plate 3, and further cause the needle tube in the plug seat 15 and the guide tube in the arc-shaped groove 21 to be non-concentric, which will easily cause the needle tube and the guide tube to be misaligned when they are inserted.

[0041] In the embodiment, the horizontal detector 22 is started to detect the upper end surface of the first block 5 at a set time after the first cylinder 10 is started to make the lifting plate 11 descend, and if the upper end surface of the first block 5 is horizontal, the upper end surface of the rotating plate 3 is horizontal, the needle tube and the guide tube are concentric, and the first cylinder 10 continues to drive the lifting plate 11 to descend. Otherwise, the controller controls the first electromagnetic valve to close the first cylinder 10 to avoid the misalignment of the guide tube and the needle tube when they are inserted.

[0042] The horizontal detector 22 needs to be started in the time period from the contact of the first block 5 with the supporting plate 6 to the insertion of the needle tube into the guide tube.

[0043] The above is only a preferred embodiment of the present application, and is not used to limit the present application, and any modification, equivalent replacement and improvement within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A needle tube guide pipe assembly tool for producing an indwelling needle, comprising a base plate (1), a clamping unit capable of clamping a guide pipe and then descending being fixed to an upper end of the base plate (1), and a needle tube positioning mechanism being arranged on the base plate (1) below the clamping unit, characterized in that, The needle tube positioning mechanism comprises two side plates (2) fixed on the bottom plate (1), a rotating plate (3) arranged between the two side plates (2), a plug seat (15) fixed on the upper end of the rotating plate (3), rotating shafts (4) fixed on both ends of the rotating plate (3), the rotating shafts (4) being rotatably connected to the side plate (2) on one side, a first block (5) in the shape of inverted L fixed on the rear side of the rotating shaft (4), a second block (7) fixed on the front side of the rotating shaft (4), a supporting plate (6) fixed on the side plate (2) below the rotating shaft (4), the lower end of the first block (5) being in contact with the upper end of the supporting plate (6), the upper end surface of the first block (5), the upper end surface of the rotating plate (3) and the horizontal plane being parallel, the first block (5) being connected to the side plate (2) through a tension spring (8), a pressing plate (12) being slidably connected to the vertical direction of a clamping assembly between the two side plates (2), the pressing plate (12) being connected to the clamping assembly through a spring (16), the lower end of the pressing plate (12) being in contact with the upper end of the rotating plate (3), the elastic force of the spring (16) being greater than that of the tension spring (8), and the pressing plate (12) limiting the rotation of the rotating plate (3).

2. The needle tube guide pipe assembly tool for a catheter needle according to claim 1, wherein The clamping unit comprises a guide rail (9) fixed on the bottom plate (1), the guide rail (9) being vertically arranged, a lifting plate (11) being slidably arranged in the vertical direction of the guide rail (9), a first cylinder (10) being fixed on the guide rail (9) and arranged vertically, the extension end of the first cylinder (10) being fixedly connected to the lifting plate (11), two clamping plates (13) being slidably arranged on the upper end of the lifting plate (11), the two clamping plates (13) being symmetrically arranged according to the axis of the plug seat (15), the clamping plates (13) being connected to the lifting plate (11) through a second cylinder (14), the sliding direction of the clamping plates (13) being perpendicular to the sliding direction of the lifting plate (11), arc-shaped grooves (21) being formed in the vertical direction of the opposite end surfaces of the two clamping plates (13), and the two arc-shaped grooves (21) being symmetrically arranged according to the axis of the plug seat (15).

3. The needle tube guide pipe assembly tool for indwelling needle production according to claim 2, characterized in that, The pressing plate (12) penetrates the lifting plate (11), and the pressing plate (12) is slidably connected to the lifting plate (11).

4. The needle tube guide pipe assembly tool for indwelling needle production according to claim 3, characterized in that, An upper stop block (17) is fixed on the pressing plate (12) above the lifting plate (11), a lower stop block (18) is fixed on the pressing plate (12) below the lifting plate (11), and the spring (16) is connected to the lower stop block (18) and the lifting plate (11).

5. The needle tube guide pipe assembly tool for indwelling needle production according to claim 2, characterized in that, A sliding groove (19) is formed in the upper end of the lifting plate (11), and a sliding block (20) is fixed on the lower end of the clamping plate (13) and slidably arranged in the sliding groove (19).

6. The needle tube guide pipe assembly tool for indwelling needle production according to claim 2, characterized in that, The first cylinder (10) is in communication with a first electromagnetic valve, the first electromagnetic valve is in communication with a gas source, the second cylinder (14) is in communication with a second electromagnetic valve, the second electromagnetic valve is in communication with the gas source, and the first electromagnetic valve, the second electromagnetic valve, a controller and a control panel are electrically connected.

7. The needle tube guide assembly tool for producing a catheter-over-needle according to claim 6, wherein A horizontal detector (22) is fixed on the upper end surface of the first block (5), and the horizontal detector (22) is electrically connected to the controller.

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