Heat shrink tube stripping device

Abstract

The utility model relates to the technical field of medical instrument processing, and discloses a heat shrink tube stripping device which comprises a base and a tube penetrating mechanism fixed to the upper end of the base. And the two sets of stripping knife mechanisms are symmetrically arranged on the left side and the right side of the pipe penetrating mechanism. The stripping knife mechanism comprises a stripping knife with a knife head located in the stripping groove, and the stripping knife is adjustably arranged in the diameter direction of the pipe die. By arranging the stripping die and arranging the stripping knives capable of adaptively adjusting the depth of inserting the stripping knives into the first stripping grooves on the two sides of the stripping die, when the guide pipe with the heat shrink pipe penetrates through the pipe die, the two sides of the heat shrink film are cut, and by adjusting the positions of the stripping knives, it can be guaranteed that the surface of the guide pipe is intact and not damaged. The pipe die is detachably arranged, and the inner hole diameter specification of the pipe die can be replaced to adapt to guide pipes of different specifications. The height of the stripping die can be adjusted, the depth of the thermal shrinkage film cut by the stripping knife can be adjusted in real time, and operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of medical device processing, in particular to a device for peeling a heat shrinkable tube on the surface of a medical catheter. Background Technique

[0002] With the popularization of vascular intervention surgery, a large number of medical catheters are used in the surgery. Many catheters in the intervention surgery need to enter the human blood vessels. Therefore, the requirements for the outer surface of the catheter are relatively high to avoid scratching the blood vessels and bringing pain to the patients.

[0003] During the existing catheter forming process, when the outer sheath (heat shrinkable tube) is peeled off, there will be imprints or even scratches on the outer surface of the catheter.

[0004] The existing products for solving this problem include heat shrinkable tube peeling tools, such as blades, tooling, etc., which have the risk of easily damaging the catheter surface. Although the blade will not damage the catheter, the following positioning device has friction with the catheter, which will cause damage.

[0005] When the depth of the blade is the same as the wall thickness of the heat shrinkable tube, the catheter will not be damaged. However, when the depth is greater than the wall thickness, the catheter will be scratched. The depth of the blade is fixed and cannot be adjusted. Content of the Utility Model

[0006] Based on this, in view of the problems raised in the above background technique, it is necessary to provide a heat shrinkable tube peeling device.

[0007] To achieve the above object, the utility model provides the following technical solution: a heat shrinkable tube peeling device, comprising:

[0008] A base and a tube threading mechanism, the tube threading mechanism is fixed to the upper end of the base;

[0009] Among them, the tube threading mechanism includes a peeling die, and a tube die penetrating through the front and rear ends thereof is arranged inside the peeling die for a catheter with a heat shrinkable tube on its surface to pass through. Peeling grooves penetrating through the left and right sides of the peeling die are arranged on both the left and right sides of the tube die;

[0010] A peeling knife mechanism, there are two groups of the peeling knife mechanisms, and they are symmetrically arranged on the left and right sides of the tube threading mechanism; and they are symmetrically arranged with respect to the central axis of the tube die;

[0011] Among them, the peeling knife mechanism includes a peeling knife with the knife head in the peeling groove, and the peeling knife is adjustable along the diameter direction of the tube die.

[0012] In a preferred example of the utility model, it can be further configured as: the tube die is detachably arranged in the first peeling groove, symmetrically arranged second peeling grooves are opened on both sides of the tube die, symmetrically arranged first peeling grooves are arranged on both sides of the module, and the second peeling groove corresponds to the first peeling groove in position.

[0013] By adopting the above technical solution, the stripping knife can be inserted into the stripping groove to cut both sides of the heat shrink tube.

[0014] In a preferred example, the utility model can be further configured as follows: a mounting hole is provided at the front end of the module and passes through the rear end thereof, the tube mold is inserted into the mounting hole, a clamping limit protrusion is provided at the front end of the tube mold, and is locked and fixed by a locking plate.

[0015] By adopting the above technical solution, different pipe molds can be replaced to adapt to catheters of different specifications, and the application range is wide.

[0016] In a preferred example, the utility model can be further configured as follows: the lower end of the stripping mold is provided with a first adjustment seat fixed to the upper end surface of the base, and the base is adjusted in height through the first adjustment seat.

[0017] By adopting the above technical solution, the height of the peeling position can be easily adjusted.

[0018] In a preferred example, the utility model can be further configured as follows: the first adjustment seat includes a first fixed seat fixed on the upper end surface of the base, a lifting seat fixedly connected to the bottom of the stripping mold is provided on the upper end of the first fixed seat, a vertical first guide rail is provided on one side of the first fixed seat, a first track groove slidably connected to the first guide rail is provided on one side of the lifting seat, and an adjustment component is provided on the first fixed seat, and the adjustment component is used to adjust the height of the lifting seat.

[0019] By adopting the above technical solution, the height adjustment of the stripping mold can be achieved by rotating the first knob screw assembly.

[0020] In a preferred example, the utility model can be further configured as follows: the adjustment component includes a lifting and rotating frame rotatably mounted on the first fixed seat on the side away from the first guide rail, the lifting and rotating frame is fixedly provided with a first convex plate and a second convex plate in a vertical shape, a first knob screw rod assembly is rotatably mounted on one side of the first fixed seat, the end of the screw rod of the first fixed seat is in contact with the second convex plate, a lifting column extending downward is provided on the top of the lifting seat, the lifting column is in contact with the first convex plate, and the feed amount of the screw rod of the first knob screw rod assembly drives the lifting seat to change between the rising state and the descending state.

[0021] In a preferred example, the utility model can be further configured as follows: a first limit plate is fixedly provided at the side end of the first fixed seat, a first slide groove is opened on the end surface of the first limit plate along the lifting direction of the lifting seat, and a first limit rod sliding in the first slide groove is fixedly provided at the side end of the lifting seat.

[0022] By adopting the above technical solution, the stability of height adjustment is improved and the lifting seat will not shake.

[0023] In a preferred embodiment, the present utility model can be further configured as follows: the stripping knife mechanism further includes a second fixed seat that can be adjusted in position towards the pipe threading mechanism. The upper end of the second fixed seat is fixedly provided with a second adjusting seat. The stripping knife is fixedly installed on the second adjusting seat through a tool rest. The second adjusting seat is used to adjust the position of the stripping knife along the diameter direction of the pipe mold.

[0024] By adopting the above technical solution, it is convenient to adjust the depth of the stripping knife inserted into the first stripping groove, and prevent the stripping knife from touching the catheter.

[0025] In a preferred embodiment, the present utility model can be further configured as follows: the second adjusting seat includes an adjusting bracket fixed to the upper end of the second fixed seat. An X-axis moving seat is slidably installed at the upper end of the adjusting bracket along the diameter direction of the pipe mold. The stripping knife is fixed to the upper end of the X-axis moving seat through a tool rest. The X-axis moving seat adjusts the feed amount through the rotation of a second knob screw assembly.

[0026] In a preferred embodiment, the present utility model can be further configured as follows: a second guide rail arranged along the diameter direction of the pipe mold is provided above the adjusting bracket. The lower end of the X-axis moving seat is slidably installed on the second guide rail through a second track groove. A second limiting plate is fixedly provided on one side of the adjusting bracket. A second sliding groove arranged along the displacement direction of the X-axis moving seat is opened on the end face of the second limiting plate. A second limiting rod slidably arranged in the second sliding groove is fixedly provided on one side of the X-axis moving seat.

[0027] In summary, the present utility model includes at least one of the following beneficial technical effects:

[0028] By providing a stripping mold, and stripping knives that can adaptively adjust the depth of insertion into the first stripping groove are provided on both sides of the stripping mold. When the catheter with a heat shrinkable tube passes through the pipe mold, both sides of the heat shrinkable film are cut. And by adjusting the position of the stripping knife, it can be ensured that the surface of the catheter is intact and not damaged.

[0029] The pipe mold is detachably arranged, and its inner diameter specification can be replaced to adapt to different specifications of catheters.

[0030] The height of the stripping mold can be adjusted, and the depth of the stripping knife for cutting the heat shrinkable film can be adjusted. Both can be adjusted in real time, which is convenient for operation. Description of the Drawings

[0031] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0032] Figure 1 is a perspective view of the present utility model;

[0033] Figure 2 Structural schematic diagram of the stripping knife mechanism in the present utility model;

[0034] Figure 3 Structural schematic diagram of the second adjusting seat in the present utility model;

[0035] Figure 4 Structural schematic diagram of the pipe threading mechanism in the present utility model;

[0036] Figure 5 Structural schematic diagram of the first adjusting seat in the present utility model;

[0037] Figure 6 Exploded view of the first adjusting seat in the present utility model;

[0038] Figure 7 Structural schematic diagram of the stripping die in the present utility model;

[0039] Figure 8 Exploded view of the stripping die in the present utility model.

[0040] In the attached drawings:

[0041] 1. Base; 11. Installation groove; 2. Pipe threading mechanism; 21. Stripping die; 211. Module; 212. First stripping groove; 213. Installation hole; 214. Pipe die; 215. Second stripping groove; 216. Locking plate; 22. First adjusting seat; 221. First fixed seat; 222. First knob screw rod assembly; 223. Lifting and rotating frame; 224. First convex plate; 225. Second convex plate; 226. Spherical protrusion; 227. Lifting seat; 228. Lifting column; 229. First limiting plate; 230. First limiting rod; 231. First sliding groove; 232. First guide rail; 233. First track groove; 3. Stripping knife mechanism; 31. Knife holder; 32. Stripping knife; 33. Second adjusting seat; 331. X-axis moving seat; 332. Second knob screw rod assembly; 333. Adjusting bracket; 334. Second limiting plate; 335. Second sliding groove; 336. Second limiting rod; 337. Second guide rail; 338. Second track groove; 34. Second fixed seat; 35. Locking screw. Detailed implementation manners

[0042] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0043] In Figure 1-8In the embodiment shown, the utility model provides a technical solution: a heat shrink tube stripping device, comprising:

[0044] A base 1 and a pipe threading mechanism 2, wherein the pipe threading mechanism 2 is fixed to the upper end of the base 1;

[0045] Among them, the tube threading mechanism 2 includes a stripping mold 21, in which a tube mold 214 is detachably provided running through its front and rear ends, for passing a catheter with a heat shrink tube on its surface, and the tube mold 214 is detachably arranged in the first stripping groove 212. Furthermore, a mounting hole 213 running through its rear end is provided at the front end of the module 211, and the tube mold 214 is inserted into the mounting hole 213. A clamping limit protrusion is provided at the front end of the tube mold 214, and it is locked and fixed by a locking plate 216, and the locking plate 216 is fixedly connected to the module 211 by screws.

[0046] The tube mold 214 has symmetrically arranged second stripping grooves 215 on both sides, and the module 211 has symmetrically arranged first stripping grooves 212 on both sides. The second stripping grooves 215 correspond to the first stripping grooves 212 in position.

[0047] The lower end of the stripping mold 21 is provided with a first adjustment seat 22 fixed to the upper end surface of the base 1, and the base 1 is adjusted in height through the first adjustment seat 22. Further, the first adjustment seat 22 includes a first fixed seat 221 fixed to the upper end surface of the base 1, and the upper end of the first fixed seat 221 is provided with a lifting seat 227 fixedly connected to the bottom of the stripping mold 21, and one side of the first fixed seat 221 is provided with a vertical first guide rail 232, and one side of the lifting seat 227 is provided with a first track groove 233 slidably connected to the first guide rail 232. The first fixed seat 221 is provided with an adjustment component, and the adjustment component is used to adjust the height of the lifting seat 227, wherein the adjustment component includes a lifting and rotating frame 223 rotatably installed on the side of the first fixed seat 221 away from the first guide rail 232, and the lifting and rotating frame A first vertical convex plate 224 and a second convex plate 225 are fixedly provided on 223, and a first knob screw assembly 222 is rotatably installed on one side of the first fixed seat 221. The end of the screw of the first fixed seat 221 contacts the second convex plate 225. A downwardly extending lifting column 228 is provided on the top of the lifting seat 227, and the lifting column 228 contacts the first convex plate 224. The contact point between the lifting column of the first convex plate 224 and 228, and the contact point between the second convex plate 225 and the first knob screw assembly 222 are both provided with 226. The feed amount of the screw of the first knob screw assembly 222 drives the lifting seat 227 to change between the rising state and the falling state.

[0048] Furthermore, a first limiting plate 229 is fixedly provided at the side end of the first fixed seat 221 , and a first sliding groove 231 arranged along the lifting direction of the lifting seat 227 is opened on the end surface of the first limiting plate 229 , and a first limiting rod 230 sliding in the first sliding groove 231 is fixedly provided at the side end of the lifting seat 227 .

[0049] Furthermore, an installation groove 11 is provided on the base 1. The installation groove 11 extends along the displacement direction of the stripping knife. The locking screw 35 passes through the installation groove 11 and locks with the second fixing seat 34, and the overall position of the stripping knife mechanism 3 can be adjusted by loosening the locking screw 35.

[0050] The stripping knife mechanism 3: There are two groups, and they are symmetrically arranged on the left and right sides of the pipe threading mechanism 2; and they are symmetrically arranged with respect to the central axis of the pipe mold 214.

[0051] Among them, the stripping knife mechanism 3 includes: a second fixing seat 34 that can be adjusted in position towards the pipe threading mechanism 2, and a stripping knife 32 with the knife head in the stripping groove. A second adjusting seat 33 is fixedly provided at the upper end of the second fixing seat 34. The stripping knife 32 is fixedly installed on the second adjusting seat 33 through a tool rest 31. The second adjusting seat 33 is used to adjust the position of the stripping knife 32 along the diameter direction of the pipe mold 214. The second adjusting seat 33 includes an adjusting bracket 333 fixed to the upper end of the second fixing seat 34. An X-axis moving seat 331 is slidably installed at the upper end of the adjusting bracket 333 along the diameter direction of the pipe mold 214. The stripping knife 32 is fixed to the upper end of the X-axis moving seat 331 through a tool rest 31. The X-axis moving seat 331 adjusts the feed amount through the rotation of the second knob screw assembly 332. The screw of the second knob screw assembly 332 passes through the X-axis moving seat 331, and is threadedly connected at the penetration point.

[0052] Above the adjusting bracket 333, a second guide rail 337 is arranged along the diameter direction of the pipe mold 214. The lower end of the X-axis moving seat 331 is slidably installed on the second guide rail 337 through a second track groove 338. A second limiting plate 334 is fixedly provided on one side of the adjusting bracket 333. A second chute 335 is arranged on the end face of the second limiting plate 334 along the displacement direction of the X-axis moving seat 331. A second limiting rod 336 that slides in the second chute 335 is fixedly provided on one side of the X-axis moving seat 331.

[0053] The specific working principle of the present utility model will be elaborated in detail below:

[0054] Select a pipe mold 214 of a specified specification, insert it into the installation hole 213, lock the locking plate 216, rotate the first knob screw assembly 222, the output end of the first knob screw assembly 222 pushes against the second convex plate 225, drives the first convex plate 224 to lift the jacking column 228. Due to the limiting effect of the first limiting plate 229 and the first limiting rod 230, the lifting seat 227 drives the stripping mold 21 to rise, and vice versa to lower, realizing height adjustment, so that the height of the first stripping groove 212 is the same as that of the stripping knife 32.

[0055] The stripping knife 32 needs to be placed in the first stripping groove 212 and extend into the second stripping groove 215. Rotating the second knob screw rod assembly 332 forward and backward drives the X-axis moving seat 331 to reciprocate along the second track groove 338, so as to adjust the feed amount of the stripping knife 32 in the first stripping groove 212 and the second stripping groove 215. When the catheter with the heat-shrinkable film passes through the tube mold 214, it is ensured that the stripping knife 32 only cuts the heat-shrinkable tube and the catheter does not touch the stripping knife 32.

[0056] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat shrink tube stripping device, comprising a base (1), characterized in that: A pipe threading mechanism (2), wherein the pipe threading mechanism (2) is fixed to the upper end of the base (1); The tube insertion mechanism (2) comprises a stripping mold (21), wherein a tube mold (214) is provided inside the stripping mold (21) and passes through the front and rear ends thereof, and is used for a conduit with a heat shrink tube on the surface to pass through, and stripping grooves are provided on the left and right sides of the tube mold (214) and pass through the left and right sides of the stripping mold (21); The stripping knife mechanism (3) is provided with two groups, and is symmetrically arranged on the left and right sides of the tube threading mechanism (2); and is symmetrically arranged with the central axis of the tube mold (214) as the axis; The stripping knife mechanism (3) comprises a stripping knife (32) whose knife head is located in a stripping groove, and the stripping knife (32) is adjustable along the diameter direction of the tube mold (214).

2. A heat shrink tube stripping device according to claim 1, characterized in that: The tube mold (214) is detachably arranged in the first stripping groove (212), and symmetrically arranged second stripping grooves (215) are provided on both sides of the tube mold (214). The stripping mold (21) further comprises a module (211), and symmetrically arranged first stripping grooves (212) are provided on both sides of the module (211), and the second stripping grooves (215) correspond in position to the first stripping grooves (212).

3. A heat shrink tube stripping device according to claim 2, characterized in that: The front end of the module (211) is provided with a mounting hole (213) which passes through the rear end thereof, the tube mold (214) is inserted into the mounting hole (213), and the front end of the tube mold (214) is provided with a clamping limit protrusion which is locked and fixed by a locking plate (216).

4. The heat shrink tube stripping device according to claim 1, characterized in that: The lower end of the stripping mold (21) is provided with a first adjustment seat (22) fixed to the upper end surface of the base (1), and the height of the base (1) is adjusted through the first adjustment seat (22).

5. A heat shrink tube stripping device according to claim 4, characterized in that: The first adjustment seat (22) comprises a first fixed seat (221) fixed on the upper end surface of the base (1); a lifting seat (227) fixedly connected to the bottom of the stripping mold (21) is provided at the upper end of the first fixed seat (221); a first vertical guide rail (232) is provided on one side of the first fixed seat (221); a first track groove (233) slidably connected to the first guide rail (232) is provided on one side of the lifting seat (227); an adjustment component is provided on the first fixed seat (221); the adjustment component is used to adjust the height of the lifting seat (227).

6. A heat shrink tube stripping device according to claim 5, characterized in that: The adjustment assembly comprises a lifting and rotating frame (223) rotatably mounted on a side of a first fixed seat (221) away from the first guide rail (232); a first convex plate (224) and a second convex plate (225) in a vertical shape are fixedly provided on the lifting and rotating frame (223); a first knob screw assembly (222) is rotatably mounted on one side of the first fixed seat (221); the end of the screw of the first fixed seat (221) contacts the second convex plate (225); a lifting column (228) extending downward is provided on the top of the lifting seat (227); the lifting column (228) contacts the first convex plate (224); and the feed amount of the screw of the first knob screw assembly (222) drives the lifting seat (227) to change between an ascending state and a descending state.

7. A heat shrink tube stripping device according to claim 5, characterized in that: A first limiting plate (229) is fixedly provided at the side end of the first fixed seat (221); a first sliding groove (231) arranged along the lifting direction of the lifting seat (227) is formed on the end surface of the first limiting plate (229); and a first limiting rod (230) sliding in the first sliding groove (231) is fixedly provided at the side end of the lifting seat (227).

8. The heat shrink tube stripping device according to claim 1, characterized in that: The stripping knife mechanism (3) further comprises a second fixed seat (34) which can be adjusted in position in the direction of the tube threading mechanism (2); a second adjustment seat (33) is fixedly provided on the upper end of the second fixed seat (34); the stripping knife (32) is fixedly mounted on the second adjustment seat (33) via a knife holder (31); and the second adjustment seat (33) is used to adjust the position of the stripping knife (32) along the diameter direction of the tube mold (214).

9. A heat shrink tube stripping device according to claim 8, characterized in that: The second adjustment seat (33) comprises an adjustment bracket (333) fixed to the upper end of the second fixed seat (34); an X-axis movable seat (331) is slidably mounted on the upper end of the adjustment bracket (333) along the diameter direction of the tube mold (214); the stripping knife (32) is fixed to the upper end of the X-axis movable seat (331) via a knife holder (31); and the X-axis movable seat (331) adjusts the feed amount by rotating the second knob screw assembly (332).

10. A heat shrink tube stripping device according to claim 9, characterized in that: A second guide rail (337) arranged along the diameter direction of the tube mold (214) is provided above the adjustment bracket (333); the lower end of the X-axis movable seat (331) is slidably mounted on the second guide rail (337) via a second track groove (338); a second limit plate (334) is fixedly provided on one side of the adjustment bracket (333); a second slide groove (335) arranged along the displacement direction of the X-axis movable seat (331) is formed on the end surface of the second limit plate (334); and a second limit rod (336) sliding in the second slide groove (335) is fixedly provided on one side of the X-axis movable seat (331).

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