Elbow jig for medical catheter and elbow production suite

Abstract

The utility model discloses a pipe bending jig and a pipe bending production suite of medical catheters.The pipe bending jig comprises a jig body, a shaping groove is formed in the jig body and comprises a straight pipe containing groove and a pipe bending shaping groove, the straight pipe containing groove is used for containing a straight pipe section of a catheter, and the pipe bending shaping groove is used for containing and shaping a pipe bending section of the catheter. The jig body is further provided with a pipe taking groove, and the pipe taking groove is communicated with the shaping groove. A guide pipe to be bent is placed in the shaping groove of the pipe bending jig, the guide pipe is deformed along with the shape matching of the straight pipe placing groove and the bent pipe shaping groove of the shaping groove, a straight pipe section of the guide pipe is formed in the straight pipe placing groove, and a bent pipe section of the guide pipe is formed in the bent pipe shaping groove in a bending mode, so that the shape of each guide pipe is shaped through the shaping groove. The shape of the catheter is more consistent, and the operation is easier and faster; after the guide pipe is placed in the shaping groove of the pipe bending jig to be shaped, the guide pipe can be taken out from the position of the pipe taking groove by hands, and the guide pipe can be taken out conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of medical device production, and particularly relates to a bending jig for a medical catheter and a bending production kit. Background Art

[0002] Medical catheters are used in medical treatment for functions such as drainage and infusion. Some of these catheters are required to have a bent shape. Referring to Figure 1 , the catheter 1 is designed with a straight tube section 11 at one end and a bent tube section 12 at the other end. When in use, the bent tube section 12 maintains a bent shape. In the production process of the catheter, it is necessary to bend out the bent tube section on the basis of the straight tube and keep it bent and shaped. The existing bending process mainly relies on manual labor to bend the catheter to a roughly bent radius and angle, with low efficiency. Moreover, manual control of the bent tube cannot ensure that the bent shape of each catheter is the same, resulting in a high rejection rate of the product, affecting the product specifications and subsequent surgical treatments. Summary of the Utility Model

[0003] The main purpose of the utility model is to propose a bending jig for a medical catheter and a bending production kit, aiming to solve the technical problem that the existing catheter bending process mainly relies on manual bending of the tube, resulting in a low consistency of the bent shape.

[0004] To achieve the above purpose, the utility model proposes a bending jig for a medical catheter, including a jig body. A shaping groove is provided on the jig body. The shaping groove includes a straight tube placement groove and a bent tube shaping groove. The straight tube placement groove is used for placing the straight tube section of the catheter, and the bent tube shaping groove is used for placing and shaping the bent tube section of the catheter. A tube taking groove is further provided on the jig body. The tube taking groove communicates with the shaping groove, and the width of the tube taking groove is greater than the width of the shaping groove.

[0005] The catheter to be bent is placed in the shaping groove of the bending jig. The catheter deforms according to the shapes of the straight tube placement groove and the bent tube shaping groove of the shaping groove, forming the straight tube section of the catheter in the straight tube placement groove and bending to form the bent tube section of the catheter in the bent tube shaping groove. In this way, the shape of each catheter is shaped by the shaping groove, making the shape of the catheter more consistent and the operation easier and faster. After the catheter is placed in the shaping groove of the bending jig and shaped, the catheter can be taken out by hand from the position of the tube taking groove, which is convenient for taking out the catheter.

[0006] Preferably, the tube taking groove is provided at the end of the bent tube shaping groove, and the tube taking groove communicates with the bent tube shaping groove.

[0007] Preferably, a tail pipe placement groove is provided at the end of the elbow pipe shaping groove. The tail pipe placement groove is used for placing the redundant tail pipe of the catheter. The tail pipe placement groove is inclined towards the straight pipe placement groove. The pipe taking groove is provided at the end of the tail pipe placement groove, and the pipe taking groove communicates with the tail pipe placement groove.

[0008] The redundant tail pipe will be cut off after the catheter is shaped. On the one hand, after the catheter is taken out of the shaping groove, the elbow pipe section may rebound. The inclination of the tail pipe placement groove towards the straight pipe placement groove can compensate for the rebound amount of the elbow pipe section. On the other hand, an indentation may be formed at the connection position between the shaping groove and the pipe taking groove of the catheter. In this solution, the redundant tail pipe is arranged at the connection position between the shaping groove and the pipe taking groove, so that the indentation is formed on the redundant tail pipe, and there is no indentation on the catheter after the redundant tail pipe is cut off.

[0009] Preferably, the number of the shaping grooves is multiple. The multiple shaping grooves are arranged in the left-right direction. The straight pipe placement groove extends in the front-back direction. Taking two adjacent shaping grooves as a groove group, the multiple shaping grooves at least include one groove group. The two shaping grooves in the groove group are respectively called the first shaping groove and the second shaping groove. The first shaping groove and the second shaping groove are arranged in a left-right staggered manner. The elbow pipe shaping grooves of the first shaping groove and the second shaping groove are arranged close to each other in the left-right direction and in the front-back direction.

[0010] Multiple shaping grooves can shape multiple catheters simultaneously, improving production efficiency. The staggered arrangement of the two shaping grooves in a groove group can reduce the left-right space occupied by the two shaping grooves, so as to increase the number of shaping grooves on the elbow pipe jig.

[0011] Preferably, a hanging hole is further provided on the jig body. The hanging hole is used for passing through a hanging rope. The hanging hole on the jig body can pass through the hanging rope, and it is convenient to put it into and take it out of the heating container through the hanging rope.

[0012] Preferably, a scale is provided beside the straight pipe placement groove. The scale extends along the length direction of the straight pipe placement groove.

[0013] By setting a scale beside the straight pipe placement groove, when placing the catheter, according to the length of the straight pipe section, the end of the straight pipe section can be placed opposite to the corresponding value, so that the length of the straight pipe section does not need to be cut again after the catheter is taken out, which is convenient for adapting to catheters of different specifications.

[0014] On the other hand, the present invention also provides a bent pipe production kit having the above-mentioned elbow pipe jig. The bent pipe production kit further includes a heating container. The elbow pipe jig can be placed in the heating container, and the heating container can heat the elbow pipe jig.

[0015] After the catheter is placed in the shaping groove of the elbow bending jig, the elbow bending jig and the catheter are placed in a heating container. The heating container heats the elbow bending jig and the catheter. The catheter is heated and shaped under the restriction of the shaping groove. After the catheter is taken out and cooled, it can maintain the shape of the elbow bend. By using the above elbow bending jig, the shapes of the produced catheters are more consistent.

[0016] Preferably, the elbow bending production kit further includes a plastic support strip with a hardness greater than that of the catheter. The plastic support strip is used to penetrate inside the catheter and is placed in the shaping groove together with the catheter. The plastic support strip can support the inner hole of the elbow bend section of the catheter.

[0017] Before placing the catheter into the elbow bending jig, first insert the plastic support strip into the inside of the catheter, and then place the catheter and the plastic support strip together into the shaping groove for bending. The plastic support strip can support the catheter inside, making the elbow bend section of the catheter fit the elbow bending shaping groove better and basically maintaining the pipe diameter size, avoiding abnormal deformation when the elbow bend section of the catheter is bent in the elbow bending shaping groove.

[0018] Preferably, the heating container is provided with a water storage cavity capable of storing water. The elbow bending jig can be placed in the water storage cavity. The heating container heats the elbow bending jig by heating the water in the water storage cavity.

[0019] Preferably, a tail pipe placement groove is provided at the end of the elbow bending shaping groove. The tail pipe placement groove is used to place the excess tail pipe of the catheter. The pipe taking groove is provided at the end of the tail pipe placement groove. The pipe taking groove communicates with the tail pipe placement groove. The elbow bending production kit further includes a cutting device for cutting the excess tail pipe of the catheter. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those skilled in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0021] Figure 1 It is a schematic structural diagram of the catheter;

[0022] Figure 2 It is a schematic structural diagram of the elbow bending jig of the present invention;

[0023] Figure 3 It is a schematic structural diagram of the catheter and the plastic support strip placed in the shaping groove of the elbow bending jig in the present invention;

[0024] Figure 4Schematic diagram of the structure when the catheter appears abnormal deformation in the elbow shaping groove;

[0025] Figure 5 In the present utility model, schematic diagram of the structure when the catheter, the plastic support strip and the elbow fixture are separated;

[0026] Figure 6 Schematic diagram of the structure with scales provided on the elbow fixture of the present utility model;

[0027] Figure 7 Schematic diagram of the structure when the elbow fixture of the present utility model is placed in the heating container;

[0028] Figure 8 Schematic diagram of the structure of the cutting device of the present utility model for cutting off the redundant tail pipe of the catheter.

[0029] In the drawings: 1 - catheter, 11 - straight pipe section, 12 - elbow section, 13 - redundant tail pipe, 14 - indentation, 2 - fixture body, 21 - shaping groove, 211 - straight pipe placement groove, 212 - elbow shaping groove, 213 - tail pipe placement groove, 22 - pipe taking groove, 23 - hanging hole, 231 - hanging rope, 24 - scale, 3 - heating container, 31 - water storage cavity, 4 - plastic support strip, 5 - cutting device.

[0030] The realization, functional features and advantages of the purpose of the present utility model will be further described with reference to the embodiments and the drawings. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the 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 of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present utility model.

[0032] It should be noted that if there are directional indications in the embodiments of the present utility model, such as up, down, left, right, front, back, etc., the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0033] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, such descriptions of "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments may be combined with each other, but it must be based on the ability of those skilled in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0034] As Figures 1 to 8 shown, a bending tool for a medical catheter 1 includes a tool body 2. A shaping groove 21 is provided on the tool body 2. The shaping groove 21 includes a straight tube placement groove 211 and a bent tube shaping groove 212. The straight tube placement groove 211 is used to place the straight tube section 11 of the catheter 1, and the bent tube shaping groove 212 is used to place and shape the bent tube section 12 of the catheter 1. A tube taking groove 22 is further provided on the tool body 2. The tube taking groove 22 communicates with the shaping groove 21, and the width of the tube taking groove 22 is greater than the width of the shaping groove 21.

[0035] The catheter 1 to be bent is placed in the shaping groove 21 of the present bending tool. The catheter 1 deforms in a shape matching manner with the straight tube placement groove 211 and the bent tube shaping groove 212 of the shaping groove 21, forming the straight tube section 11 of the catheter 1 in the straight tube placement groove 211 and bending to form the bent tube section 12 of the catheter 1 in the bent tube shaping groove 212. In this way, the shape of each catheter 1 is shaped by the shaping groove 21, making the shape of the catheter 1 more consistent than that obtained by manual bending and the operation easier and faster. After the catheter 1 is placed in the shaping groove 21 of the bending tool for shaping, the catheter 1 can be taken out by hand from the position of the tube taking groove 22, facilitating the taking out of the catheter 1.

[0036] In some specific embodiments, the tube taking groove 22 is provided at the end of the bent tube shaping groove 212, and the tube taking groove 22 communicates with the bent tube shaping groove 212. The end of the bent tube section 12 of the catheter 1 extends into the tube taking groove 22, and the catheter 1 can be taken out through the tube taking groove 22. In some other embodiments, the tube taking groove 22 can also be provided in the straight tube placement groove 211.

[0037] In some specific embodiments, referring to Figure 2 and Figure 3 , a tail tube placement groove 213 is provided at the end of the bent tube shaping groove 212. The tail tube placement groove 213 is used to place the redundant tail tube 13 of the catheter 1. The tail tube placement groove 213 is inclined towards the side of the straight tube placement groove 211. The tube taking groove 22 is provided at the end of the tail tube placement groove 213, and the tube taking groove 22 communicates with the tail tube placement groove 213.

[0038] The redundant tail pipe 13 will be cut off after the catheter 1 is shaped. A part of the redundant tail pipe 13 is within the tail pipe placement groove 213, and the other part extends into the pipe extraction groove 22. On the one hand, after the catheter 1 is taken out of the shaping groove 21, the bent pipe section 12 may rebound. The inclination of the tail pipe placement groove 213 towards the straight pipe placement groove 211 can compensate for the rebound amount of the bent pipe section 12, and the inclination angle can be about 10 degrees. On the other hand, there is a convex corner at the connection position between the shaping groove 21 and the pipe extraction groove 22. Due to the rebound effect, the catheter 1 may be pressed to form an indentation 14 at the connection position between the shaping groove 21 and the pipe extraction groove 22. In this solution, the redundant tail pipe 13 is arranged at the connection position between the shaping groove 21 and the pipe extraction groove 22, so that the indentation 14 is formed on the redundant tail pipe 13, and there is no indentation 14 on the catheter 1 after the redundant tail pipe 13 is cut off.

[0039] In some specific embodiments, the number of shaping grooves 21 is multiple, and the multiple shaping grooves 21 are arranged in the left-right direction. The straight pipe placement groove 211 extends in the front-back direction. Taking two adjacent shaping grooves 21 as a groove group, the multiple shaping grooves 21 include at least one groove group. The two shaping grooves 21 in the groove group are respectively referred to as the first shaping groove and the second shaping groove. The first shaping groove and the second shaping groove are arranged in a left-right offset manner, and the bent pipe shaping grooves 212 of the first shaping groove and the second shaping groove are arranged close to each other in the left-right direction and in the front-back arrangement.

[0040] Specifically, the bent pipe shaping groove 212 of the first shaping groove is arranged at the right front side of the straight pipe placement groove 211 of the first shaping groove, the bent pipe shaping groove 212 of the second shaping groove is arranged at the left rear side of the straight pipe placement groove 211 of the second shaping groove, the bent pipe shaping groove 212 of the first shaping groove is arranged at the front side of the bent pipe shaping groove 212 of the second shaping groove, the straight pipe placement groove 211 of the first shaping groove is arranged at the left side of the bent pipe shaping groove 212 of the second shaping groove, and the straight pipe placement groove 211 of the second shaping groove is arranged at the right side of the bent pipe shaping groove 212 of the first shaping groove.

[0041] The multiple shaping grooves 21 can shape multiple catheters 1 simultaneously, improving production efficiency. The offset arrangement of the two shaping grooves 21 in a groove group can reduce the left-right space occupied by the two shaping grooves 21, so as to increase the number of shaping grooves 21 on the bending fixture.

[0042] In some specific embodiments, the fixture body 2 is further provided with a hanging hole 23, and the hanging hole 23 is used to pass through a hanging rope 231. The hanging hole 23 on the fixture body 2 can pass through the hanging rope 231. Through the hanging rope 231, it is convenient to put it into the heating container 3 and take it out, and it can also be hung on the tool wall for easy storage when not in use.

[0043] In some specific embodiments, referring to Figure 6 , a scale 24 is provided beside the straight pipe placement groove 211, and the scale 24 extends along the length direction of the straight pipe placement groove 211.

[0044] A scale 24 is provided beside the straight pipe placement groove 211. When the catheter 1 is placed, according to the length of the straight pipe section 11, the end of the straight pipe section 11 can be placed opposite the corresponding value. In this way, after the catheter 1 is taken out, there is no need to cut the length of the straight pipe section 11 again, which is convenient for adapting to catheters 1 of different specifications.

[0045] On the other hand, referring to Figure 7 , a bent pipe production kit with the above-mentioned bent pipe jig further includes a heating container 3. The bent pipe jig can be placed in the heating container 3, and the heating container 3 can heat the bent pipe jig.

[0046] After the catheter 1 is placed in the shaping groove 21 of the bent pipe jig, the bent pipe jig and the catheter 1 are placed in the heating container 3. The heating container 3 heats the bent pipe jig and the catheter 1 to an appropriate temperature. The catheter 1 is heated and shaped under the restriction of the shaping groove 21. When the catheter 1 is taken out and cooled, it can maintain the shape of the bent pipe. By adopting the above-mentioned bent pipe jig, the shapes of the produced catheters 1 are more consistent. Multiple bent pipe jigs can be placed in the heating container 3 at the same time for heating.

[0047] In some specific embodiments, referring to Figure 3 and Figure 5 , the bent pipe production kit further includes a plastic support bar 4 with a hardness greater than that of the catheter 1. The plastic support bar 4 is used to penetrate into the interior of the catheter 1 and is placed in the shaping groove 21 together with the catheter 1. The plastic support bar 4 can support the inner hole of the bent pipe section 12 of the catheter 1, and the diameter of the plastic support bar 4 is slightly smaller than the inner diameter of the catheter 1.

[0048] The material of the catheter 1 is, for example, TPU. Due to the relatively soft material, when the catheter 1 is bent in the bent pipe shaping groove 212, abnormal deformations such as bending are likely to occur. Referring to Figure 4 , it deviates from the shape of the bent pipe shaping groove 212, resulting in inconsistent pipe diameters. In this solution, before the catheter 1 is placed in the bent pipe jig, the plastic support bar 4 is first inserted into the interior of the catheter 1, and then the catheter 1 and the plastic support bar 4 are placed together in the shaping groove 21 for bending. The plastic support bar 4 can support the catheter 1 inside the catheter 1, making the bent pipe section 12 of the catheter 1 more conform to the bent pipe shaping groove 212 and basically maintaining the pipe diameter size, avoiding abnormal deformation of the bent pipe section 12 of the catheter 1 when bending in the bent pipe shaping groove 212. The material of the catheter 1 is TPU. Preferably, the material of the plastic support bar 4 is polypropylene. The plastic support bar 4 is heated together with the catheter 1 and the bent pipe jig. After heating and cooling to room temperature, the catheter 1 and the plastic support bar 4 are taken out of the bent pipe jig, and then the plastic support bar 4 is quickly pulled out from the catheter 1. Although the catheter 1 will deform during the pulling out process, due to the quick pulling out, in practice, the catheter 1 will return to the required shape, and the influence on the shape of the catheter 1 is very small.

[0049] In some specific embodiments, the heating container 3 is provided with a water storage cavity 31 capable of storing water. The elbow pipe fixture can be placed in the water storage cavity 31, and the heating container 3 heats the elbow pipe fixture by heating the water in the water storage cavity 31. The elbow pipe fixture and the conduit 1 are heated by boiling water in the water storage cavity 31 of the heating container 3, which is convenient for controlling the temperature not to be too high. In other embodiments, the heating container 3 can also be an oven or the like.

[0050] In some specific embodiments, a tail pipe placement groove 213 is provided at the end of the elbow pipe shaping groove 212. The tail pipe placement groove 213 is used for placing the redundant tail pipe 13 of the conduit 1. The pipe taking groove 22 is provided at the end of the tail pipe placement groove 213, and the pipe taking groove 22 communicates with the tail pipe placement groove 213. The elbow pipe production kit further includes a cutting device 5. Refer to Figure 8 , and the cutting device 5 is used for cutting the redundant tail pipe 13 of the conduit 1. After the conduit 1 is shaped and the elbow pipe fixture is taken out, the redundant tail pipe 13 is cut off by the cutting device 5, and the remaining part is the required conduit 1.

[0051] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structural transformation made by using the content of the specification and drawings of the present invention under the inventive concept of the present invention, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. A medical catheter bending fixture, characterized in that: The jig body (2) comprises a jig body (2), wherein a shaping groove (21) is provided on the jig body (2), wherein the shaping groove (21) comprises a straight tube placement groove (211) and a curved tube shaping groove (212) connected to each other, wherein the straight tube placement groove (211) is used to place a straight tube section (11) of a catheter (1), and the curved tube shaping groove (212) is used to place and shape the curved tube section (12) of the catheter (1), and the jig body (2) is also provided with a tube removal groove (22), wherein the tube removal groove (22) is connected to the shaping groove (21), and the width of the tube removal groove (22) is greater than the width of the shaping groove (21).

2. The pipe bending jig according to claim 1, characterized in that: The tube taking groove (22) is arranged at the end of the bend tube shaping groove (212), and the tube taking groove (22) is communicated with the bend tube shaping groove (212).

3. The pipe bending jig according to claim 1, characterized in that: A tail pipe placement groove (213) is provided at the end of the curved pipe shaping groove (212), and the tail pipe placement groove (213) is used to place redundant tail pipes (13) of the guide tube (1). The tail pipe placement groove (213) is arranged to be inclined toward one side of the straight pipe placement groove (211), and the pipe removal groove (22) is arranged at the end of the tail pipe placement groove (213), and the pipe removal groove (22) is communicated with the tail pipe placement groove (213).

4. The pipe bending jig according to claim 1, characterized in that: The number of the shaping grooves (21) is multiple, and the multiple shaping grooves (21) are arranged in the left-right direction. The straight tube placement groove (211) extends in the front-to-back direction. Two adjacent shaping grooves (21) form a groove group. The multiple shaping grooves (21) include at least one groove group. The two shaping grooves (21) in the groove group are respectively referred to as the first shaping groove and the second shaping groove. The first shaping groove and the second shaping groove are arranged in a left-right staggered manner. The curved tube shaping groove (212) of the first shaping groove and the curved tube shaping groove (212) of the second shaping groove are arranged close to each other in the left-right direction and arranged front-to-back.

5. The pipe bending jig according to claim 1, characterized in that: The fixture body (2) is also provided with a hanging hole (23), and the hanging hole (23) is used to pass a hanging rope (231).

6. The pipe bending jig according to claim 1, characterized in that: A scale (24) is provided on the side of the straight tube placement groove (211), and the scale (24) extends along the length direction of the straight tube placement groove (211).

7. A pipe bending production kit, characterized in that: The pipe bending jig comprises the pipe bending jig as described in any one of claims 1 to 6, wherein the pipe bending production kit further comprises a heating container (3), wherein the pipe bending jig can be placed in the heating container (3), and wherein the heating container (3) can heat the pipe bending jig.

8. The pipe bending production kit according to claim 7, characterized in that: The bent pipe production kit also includes a plastic support strip (4) having a harderness greater than that of the catheter (1), wherein the plastic support strip (4) is used to be inserted into the interior of the catheter (1) and placed in the shaping groove (21) along with the catheter (1), and the plastic support strip (4) is capable of supporting the inner hole of the bent pipe section (12) of the catheter (1).

9. The pipe bending production kit according to claim 7, characterized in that: The heating container (3) is provided with a water storage chamber (31) capable of storing water, and the pipe bending jig can be placed in the water storage chamber (31). The heating container (3) heats the pipe bending jig by heating the water in the water storage chamber (31).

10. The pipe bending production kit according to claim 7, characterized in that: A tail pipe placement groove (213) is provided at the end of the bend shaping groove (212), and the tail pipe placement groove (213) is used to place excess tail pipes (13) of the guide tube (1). The pipe removal groove (22) is provided at the end of the tail pipe placement groove (213), and the pipe removal groove (22) is connected to the tail pipe placement groove (213). The bend production kit also includes a cutting device (5), and the cutting device (5) is used to cut excess tail pipes (13) of the guide tube (1).

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