Medical multi-cavity catheter hole cutting machine

Abstract

The utility model relates to a medical multi-cavity catheter hole cutting machine which comprises a bottom plate, a top block, a cutting tool, a tool mounting plate base, a tool fixing plate, a double-shaft pneumatic air cylinder, an air cylinder fixing plate, a dovetail groove sliding table, a sliding table fixing plate, a finger pressing block, a pressing block connecting plate, a double-clamping air cylinder and a catheter positioning device. The sliding table fixing plate and the double-clamping air cylinder are connected with the bottom plate through screws. The pressing block connecting plate is connected with the double-clamping air cylinder through a screw. And the finger pressing block is connected with the pressing block connecting plate through a screw. According to the device, the friction wheel is in contact with the sliding connecting strip, the sliding connecting strip moves up and down along with rotation of the friction wheel, the movable platform is driven to move up and down, the locking handle is rotated to abut against the brake strip after the position is adjusted, the brake strip makes contact with the movable platform to generate friction force, and therefore the sliding table is fixed, operation is convenient and stable, and batch operation is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of machinery, and particularly relates to a medical multi-cavity catheter hole cutting machine. Background Art

[0002] In the prior art, when producing a multi-cavity catheter, it is necessary to cut holes at the corresponding positions of the chambers to be cut in the multi-cavity catheter. For different specifications and models, the operator needs to insert stainless steel guide wires with different right-angled dimensions (diameter, length) into the chambers one by one for hole cutting operations. This operation method is complex and inefficient. In particular, after inserting the axial guide wire into the chamber to be cut and lifting the convex point to the outer wall of the chamber catheter, a blade is used to cut a hole within the required range with the convex point as the center. The operation difficulty is relatively large, and it is not easy to meet the operation requirements.

[0003] Precisely because of the large operation difficulty of this operation method, it is relatively difficult to train qualified hole cutting operators during manual operation. The training cycle is relatively long, and it is not easy to get started. The training takes 2 - 3 months, and the pure manual operation rate is relatively slow. The depths and lengths of the manually cut holes are inconsistent. Therefore, it is necessary to make improvements. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a medical multi-cavity catheter hole cutting machine, so as to better realize the hole cutting treatment of medical multi-cavity catheters, facilitate batch operation, and achieve simple and mechanized operation.

[0005] In order to achieve the above purpose, the technical solution of the utility model is as follows.

[0006] A medical multi-cavity catheter hole cutting machine, comprising a bottom plate, a top block, a cutting tool, a tool mounting plate base, a tool fixing plate, a double-axis pneumatic cylinder, a cylinder fixing plate, a dovetail groove slide, a slide fixing plate, a finger pressing block, a pressing block connecting plate, a double clamping cylinder, and a catheter positioning device. The top block is fixed in the positioning groove of the bottom plate by screws; the slide fixing plate and the double clamping cylinder are both connected to the bottom plate by screws; the pressing block connecting plate is connected to the double clamping cylinder by screws; the finger pressing block is connected to the pressing block connecting plate by screws; the cutting tool is embedded in the tool fixing plate through a tool positioning pin and fixed with screws; the tool fixing plate is connected to the double-axis pneumatic cylinder through the tool mounting plate base by screws; the cylinder fixing plate and the double-axis pneumatic cylinder are connected by screws.

[0007] Further, the dovetail groove slide includes a slide base, a moving platform, a locking handle, a knob adjustment, a rotating shaft, a sliding connection bar, and a rotating shaft bushing. The slide base is connected to the slide fixing plate by screws, and the moving platform is connected to the cylinder fixing plate by screws. The rotating shaft bushing is sleeved on the rotating shaft and arranged through the shaft hole of the slide base. The knob adjustment is connected to the rotating shaft by screws. The sliding connection bar is placed in the vertical groove of the slide base and is arranged in cooperation with the side opening of the rotating shaft bushing. The moving platform is fixed to the sliding connection bar by screws. The locking handle is installed in the threaded hole on the side of the slide base.

[0008] Further, a brake strip is provided between the side surface of the moving platform and the surface of the vertical groove of the slide base. The locking handle passes through the threaded hole on the side of the slide base and fits against the side surface of the brake strip.

[0009] Further, the catheter positioning device includes a slider, a positioning mandrel, a catheter card slot, and a setscrew. The slider is connected to the bottom plate by screws and large washers. The catheter card slot is connected to the slider by screws. The positioning mandrel passes through the round hole in the catheter card slot and is fixed tightly using a setscrew.

[0010] Further, an observation port is provided on the catheter card slot.

[0011] Further, a plurality of horizontal foot bolts are provided at the lower part of the bottom plate.

[0012] The beneficial effects of this utility model are as follows: In this utility model, when inserting a medical multi-lumen catheter into the catheter fixing device, it can be checked through the observation port whether the medical multi-lumen catheter reaches the bottom, and the catheter fixing device can be adjusted in position on the bottom plate to deal with medical multi-lumen catheters of different lengths. After adjusting the position of the catheter positioning device in the horizontal groove, tighten the screws so that the large washer fits tightly against the bottom plate, and the slider is fixed, thereby adapting to the hole cutting processing of medical multi-lumen catheters of different lengths. In this device, the moving platform is moved up and down by adjusting the knob. After the cutting tool moves to the corresponding position, rotate the locking handle to fix the slide. Adjusting the knob drives the rotating shaft to rotate. The friction wheel contacts the sliding connection bar, and the sliding connection bar moves up and down as the friction wheel rotates, driving the moving platform to move up and down. After adjusting the position, rotate the locking handle to press against the brake strip, so that the brake strip contacts the moving platform to generate friction to fix the slide. The operation is convenient, stable, and suitable for batch operation. Description of the Drawings

[0013] Figure 1 is a schematic structural diagram of the device used in the embodiment of this utility model.

[0014] Figure 2 is a schematic installation structural diagram of the catheter positioning device used in the embodiment of this utility model.

[0015] Figure 3It is a schematic diagram of the dovetail groove slide table combined structure used in the embodiment of the present utility model.

[0016] Figure 4 It is a schematic diagram of the split structure of the dovetail groove slide table used in the embodiment of the present utility model.

[0017] Figure 5 It is a schematic diagram of the catheter positioning device structure used in the embodiment of the present utility model.

[0018] Figure 6 It is a schematic sectional view of the catheter positioning device used in the embodiment of the present utility model.

[0019] Figure 7 It is a schematic side view of the catheter positioning device used in the embodiment of the present utility model.

[0020] Figure 8 It is a schematic diagram of the tool fixing plate used in the embodiment of the present utility model.

[0021] Figure 9 It is a schematic side view when the finger pressing block of the device catheter hole cutting machine used in the embodiment of the present utility model is lifted.

[0022] Figure 10 It is a schematic side view when the finger pressing block of the device catheter hole cutting machine used in the embodiment of the present utility model drops.

[0023] Explanation of the markings in the figure: 1. Bottom plate; 2. Top block; 3. Cutting tool; 4. Base of the tool mounting plate; 5. Tool fixing plate; 501. Tool positioning pin; 6. Double-axis pneumatic cylinder; 7. Cylinder fixing plate; 8. Dovetail groove slide table; 801. Slide table base; 80101. Gate bar; 802. Moving platform; 803. Locking handle; 804. Knob adjustment; 805. Rotating shaft; 80501. Friction wheel; 806. Sliding connection bar; 807. Rotating shaft bushing; 9. Slide table fixing plate; 10. Finger pressing block; 11. Pressing block connecting plate; 12. Double clamping cylinder; 13. Catheter positioning device; 1301. Slide block; 130301. Observation port; 1302. Positioning mandrel; 1303. Catheter card slot; 1304. Set screw; 14. Horizontal foot bolt; 15. Large washer; 16. Medical multi-lumen catheter. Detailed implementation manners

[0024] The following describes the detailed implementation manners of the present utility model in conjunction with the accompanying drawings and embodiments for better understanding of the present utility model. Embodiment

[0025] As Figures 1 to 10The medical multi-lumen catheter hole-cutting machine shown includes a bottom plate 1, a top block 2, a cutting tool 3, a tool mounting plate base 4, a tool fixing plate 5, a double-axis pneumatic cylinder 6, a cylinder fixing plate 7, a dovetail groove slide 8, a slide fixing plate 9, a finger pressing block 10, a pressing block connecting plate 11, a double clamping cylinder 12, and a catheter positioning device 13. Among them, the top block 2 is fixed in the positioning groove of the bottom plate 1 by screws; the slide fixing plate 9 and the double clamping cylinder 12 are both connected to the bottom plate 1 by screws; the pressing block connecting plate 11 is connected to the double clamping cylinder 12 by screws; the finger pressing block 10 is connected to the pressing block connecting plate 11 by screws; the cutting tool 3 is embedded on the tool fixing plate 5 through a tool positioning pin 501 and fixed with screws; the tool fixing plate 5 is connected to the double-axis pneumatic cylinder 6 through the tool mounting plate base 4 by screws; the cylinder fixing plate 7 and the double-axis pneumatic cylinder 6 are connected by screws. Multiple horizontal foot bolts 14 are provided at the lower part of the bottom plate 1.

[0026] As Figure 3 , Figure 4 shown, the dovetail groove slide 8 includes a slide base 801, a moving platform 802, a locking handle 803, a knob adjustment 804, a rotating shaft 805, a sliding connection bar 806, and a rotating shaft bushing 807. The slide base 801 is connected to the slide fixing plate 9 by screws, and the moving platform 802 is connected to the cylinder fixing plate 7 by screws; the rotating shaft bushing 807 is sleeved on the rotating shaft 805 and is arranged through the shaft hole of the slide base 801; the knob adjustment 804 is connected to the rotating shaft 805 by screws; the sliding connection bar 806 is placed in the vertical groove of the slide base 801 and is arranged in cooperation with the side opening of the rotating shaft bushing 807; the moving platform 802 is fixed to the sliding connection bar 806 by screws; the locking handle 803 is installed in the threaded hole on the side of the slide base 801. A brake bar 80101 is provided between the side surface of the moving platform 802 and the surface of the vertical groove of the slide base 801; the locking handle 803 passes through the threaded hole on the side of the slide base 801 and fits against the side surface of the brake bar 80101.

[0027] As Figure 5 , Figure 6 and Figure 7 shown, the catheter positioning device 13 includes a slider 1301, a positioning mandrel 1302, a catheter card slot 1303, and a setscrew 1304. The slider 1301 is connected to the bottom plate 1 by screws and large washers 15; the catheter card slot 1303 is connected to the slider 1301 by screws; the positioning mandrel 1302 passes through the round hole in the catheter card slot 1303 and is fixedly fastened with the setscrew 1304. An observation port 130301 is provided on the catheter card slot 1303. Embodiment

[0028] As Figure 9 , Figure 10 shown, the medical multi-lumen catheter 16 is fixed by an eccentric catheter fixing device 13, and at this time, the cavity surface to be cut faces upward.Figure 9 It is a cross-sectional view of a catheter. Then, the medical multi-lumen catheter 16 is inserted into the catheter fixing device 13, and it is checked through the observation port 130301 whether the medical multi-lumen catheter 16 reaches the bottom. The catheter fixing device 13 can adjust its position on the bottom plate 1 to accommodate medical multi-lumen catheters 16 of different lengths. After adjusting the position of the catheter positioning device 13 in the transverse groove, tighten the screw so that the large washer 15 fits tightly against the bottom plate 1 and the slider 1301 is fixed, as Figure 6 shown. To accommodate medical multi-lumen catheters 1516 of different lengths.

[0029] The cutting hole depth is controlled by adjusting the feed of the dovetail groove slide 8 to drive the double-axis pneumatic cylinder to move up and down. Adjust the feed and lock the position of the dovetail groove slide 8. The double-axis pneumatic cylinder 6 contracts, and the cutting tool 3 moves to the right. At this time, the double clamping cylinder 12 opens, and the finger pressing block 10 keeps a certain distance from the medical multi-lumen catheter 16; after placing the medical multi-lumen catheter 16, the double clamping cylinder 12 contracts, and the finger pressing block 10 drops. The catheter and the top block 2 press down the medical multi-lumen catheter 16 together to form a "ji" shape, as Figure 10 shown. At this time, the highest protruding point of the catheter is the cutting hole position.

[0030] The adjustment knob adjusts 804 to move the moving platform 802 up and down. After the cutting tool 3 moves to the corresponding position, turn the locking handle 803 to fix the slide. The adjustment knob adjusts 804 to drive the rotating shaft 805 to rotate, as Figure 4 shown, where the friction wheel 80501 is in contact with the sliding connection bar 806. The sliding connection bar 806 moves up and down as the friction wheel 80501 rotates, driving the moving platform 802 to move up and down. After adjusting the position, turn the locking handle 803 to press against the brake bar 80101, so that the brake bar 80101 contacts the moving platform 802 to generate friction to fix the slide. As Figure 3 、 Figure 4 shown. The double-axis pneumatic cylinder 6 expands, and the cutting tool 3 moves to the left to complete the cutting step.

[0031] The above is the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present invention.

Claims

1. A medical multi-lumen catheter hole cutting machine, characterized in that: It includes a bottom plate (1), a top block (2), a cutting tool (3), a tool mounting plate base (4), a tool fixing plate (5), a double-axis pneumatic cylinder (6), a cylinder fixing plate (7), a dovetail groove slide (8), a slide fixing plate (9), a finger pressing block (10), a pressing block connecting plate (11), a double clamping cylinder (12), and a conduit positioning device (13). The top block (2) is fixed in the positioning groove of the bottom plate (1) by screws; the slide fixing plate (9) and the double clamping cylinder (12) are both connected to the bottom plate (1) by screws; the pressing block connecting plate (11) is connected to the double clamping cylinder (12) by screws; the finger pressing block (10) is connected to the pressing block connecting plate (11) by screws; the cutting tool (3) is embedded in the tool fixing plate (5) through a tool positioning pin (501) and fixed with screws; the tool fixing plate (5) is connected to the double-axis pneumatic cylinder (6) through the tool mounting plate base (4) by screws; the cylinder fixing plate (7) and the double-axis pneumatic cylinder (6) are connected by screws.

2. The medical multi-lumen catheter hole cutting machine according to claim 1, characterized in that: The dovetail groove slide (8) includes a slide base (801), a moving platform (802), a locking handle (803), a knob adjustment (804), a rotating shaft (805), a sliding connection bar (806), and a rotating shaft bushing (807). The slide base (801) is connected to the slide fixing plate (9), and the moving platform (802) is connected to the cylinder fixing plate (7) by screws; the rotating shaft bushing (807) is sleeved on the rotating shaft (805) and passes through the shaft hole of the slide base (801); the knob adjustment (804) is connected to the rotating shaft (805) by screws; the sliding connection bar (806) is placed in the vertical groove of the slide base (801) and is arranged in cooperation with the side opening of the rotating shaft bushing (807); the moving platform (802) is fixed to the sliding connection bar (806) by screws; the locking handle (803) is installed in the threaded hole on the side of the slide base (801).

3. The medical multi-lumen catheter hole cutting machine according to claim 2, characterized in that: A brake strip (80101) is provided between the side surface of the moving platform (802) and the surface of the vertical groove of the slide base (801); the locking handle (803) passes through the threaded hole on the side of the slide base (801) and fits against the side surface of the brake strip (80101).

4. The medical multi-lumen catheter hole cutting machine according to claim 1, characterized in that: The conduit positioning device (13) includes a slider (1301), a positioning mandrel (1302), a conduit card slot (1303), and a setscrew (1304). The slider (1301) is connected to the bottom plate (1) by screws and large washers (15); the conduit card slot (1303) is connected to the slider (1301) by screws; the positioning mandrel (1302) passes through the round hole in the conduit card slot (1303) and is fastened and fixed with a setscrew (1304).

5. The medical multi-lumen catheter hole cutting machine according to claim 4, characterized in that: An observation port (130301) is provided on the conduit card slot (1303).

6. The medical multi-lumen catheter hole cutting machine according to claim 1, wherein: A plurality of horizontal foot bolts (14) are provided at the lower part of the bottom plate (1).

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