Combined drainage tube capable of reducing puncture resistance

Abstract

The utility model belongs to the field of medical instruments, and particularly relates to a combined drainage tube capable of reducing puncture resistance, which is characterized in that a first connecting section with a quincunx-shaped outer wall is arranged on an integrally formed drainage tube with uniform tube diameters, and a reducing guide needle is arranged on a second connecting section connected with the first connecting section; the combined type fixing assistor is detachably and fixedly arranged on the first connecting section, a side hole is formed in the drainage tube penetrating-out portion of the combined type fixing assistor, and friction with tissue in the puncture process is reduced through the combined action of the quincunx outer wall of the first connecting section and the variable-diameter needle, so that puncture resistance is reduced; meanwhile, through the combined fixing assistor matched with the quincunx-shaped outer wall of the first connecting section, fixation between the catheter and the drainage part of the patient is achieved after puncture is completed, the fixing effect is good, the drainage tube inclines at a certain angle through the side holes in the combined fixing assistor, and the drainage effect is good. And the problem of unsmooth drainage caused by improper bending of the drainage tube can be effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of medical devices, concretely relates to a combined drainage tube reducing puncture resistance. BACKGROUND

[0002] Drainage is one of the common surgical operations in the field of surgical operation, through the drainage of human pathological part, the exudate, blood, pus and other impurities are discharged from the pathological part to avoid the accumulation in the tissue or body cavity, and the infection or the spread of pathogenic microorganism is caused, and the pressure inside the pathological part is also reduced, and the damage of adjacent organs is prevented.

[0003] The common drainage device currently includes a puncture needle and a drainage tube, and the puncture needle is used for puncturing the pathological part of the patient to place the tube, but the puncture needle and the drainage tube have the problem of large puncture resistance in the process of puncture and tube placement, the large puncture resistance can affect the success rate of the surgical drainage operation, increase the operation difficulty, and also cause unnecessary pain of the patient and unnecessary surgical injury.

[0004] After the drainage puncture is completed, the fixation of the drainage tube on the drainage part is also one of the problems, the poor fixation of the drainage tube can cause the slippage of the drainage tube on the drainage part, and the improper bending of the drainage tube can also cause the poor drainage, thereby interfering with the drainage process. UTILITY MODEL CONTENT

[0005] In order to solve the problems of large puncture resistance of the drainage tube, difficult fixation after puncture and improper bending of the drainage tube to cause poor drainage in the prior art, the utility model provides a combined drainage tube reducing puncture resistance, a first connecting section with a plum blossom shaped outer wall is arranged on the drainage tube, and the first connecting section and the variable diameter guide needle are cooperated to reduce the resistance of the drainage tube during puncture, and the combined fixation auxiliary device matched with the plum blossom shaped outer wall of the first connecting section is used to fix the catheter on the drainage surface after puncture.

[0006] The utility model provides a combined drainage tube reducing puncture resistance, including drainage tube body and combined fixation auxiliary device, the pipe diameter of drainage tube body is uniform and is integrally formed, including the drainage section of cross section, the anti - pressure section with the protrusion on the inner wall is connected with one end of drainage section, the first connecting section is connected with the other end of drainage section opposite anti - pressure section, and the second connecting section is connected with the other end of anti - pressure section opposite first connecting section of anti - pressure section, the guide needle is connected to the other end of second connecting section opposite first connecting section, the second connecting section is round pipe, the outer wall section of first connecting section is plum blossom shape.

[0007] As preferred, the combined fixing assistant is detachably fixed to the first connecting section, the combined fixing assistant comprises a top part, a middle part and a bottom part, the bottom part of the combined fixing assistant is tightly fixed to the surface of the drainage site of the patient after the combined fixing assistant is fixed, the diameter of the middle part is smaller than that of the top part and the bottom part, the combined fixing assistant is internally provided with a through hole penetrating from top to bottom, the inner wall of the through hole is matched with the outer wall of the first connecting section, and the middle part is provided with a fastening assembly.

[0008] The combined fixing assistant is made of elastic material, and when the combined fixing assistant is fixed to the first connecting section, the first connecting section can be fixed by being elastically extruded.

[0009] As preferred, the fastening assembly comprises a plurality of hooks arranged in a whole circle in the middle part of the combined fixing assistant, and a hanging rope fixedly arranged in the middle part, the hanging rope is provided with fixing holes matched with the hooks, and the fixing holes are matched and fixed with the hooks, for example, by means of interference fit.

[0010] The hanging rope is made of elastic material, and the combined fixing assistant is fastened by the elastic tension of the hanging rope.

[0011] As preferred, the combined fixing assistant is provided with an opening in the radial direction along the circumference thereof, the opening extends from the outer circumference to the inner wall of the through hole, and the combined fixing assistant can be unfolded or closed through the opening.

[0012] After the drainage tube is punctured, the drainage section and the pressure-resistant section are placed in the patient's body, and the first connecting section and the second connecting section are placed outside the body surface, the unfolded combined fixing assistant can be placed on the first connecting section, then the opening is closed, and the hanging rope is fastened on the corresponding hook, so that the fixing of the combined fixing assistant is completed, and the bottom wall of the bottom part of the combined fixing assistant is tightly attached to the surface of the drainage site of the patient, the skin of the drainage site and the bottom wall of the bottom part can be fixed by various fixing methods in the art, for example, by suture fixation or adhesive fixation.

[0013] As preferred, the top part of the combined fixing assistant is provided with a side hole in the radial direction along the top part, the side hole is a semicircular hole, the diameter of the side hole is greater than or equal to the diameter of the through hole, and the radius of the side hole is less than the height of the top part, after the drainage tube reaches the top part through the bottom part and the middle part, the drainage tube can be inclined to pass out of the combined fixing assistant at a certain angle through the side hole, so that the drainage tube is prevented from being too high and the drainage is not smooth due to too large bending of the drainage tube.

[0014] As preferred, the guide needle is a variable-diameter guide needle, the diameter of the guide needle changes from thick to thin from the end connected with the second connecting section to the other end, and the maximum diameter of the end of the guide needle connected with the second connecting section is greater than the outer diameter of the drainage tube.

[0015] The guide needle is provided with a variable diameter, and the transition of the diameter helps to reduce the contact between the tissue and the second connecting section during puncture, further reducing the puncture resistance during puncture. The gradual tapering can effectively reduce the puncture resistance of the guide needle during puncture, and because the diameter of the end of the guide needle is larger than the diameter of the drainage tube, a tunnel larger than the diameter of the drainage tube can be formed during puncture, which can effectively reduce the resistance of the drainage tube during puncture. Because the diameter of the end of the guide needle is larger than the diameter of the drainage tube, when the guide needle passes through the surface of the patient, a step-like structure caused by the outer diameter of the drainage tube being larger than the diameter of the end of the guide needle will not be formed, thereby avoiding the problem of loosening between the drainage tube and the guide needle caused by friction and tissue clamping the drainage tube.

[0016] As a preferred, the length of the first connecting section is greater than the length of the second connecting section.

[0017] The second connecting section serves to connect the guide needle, and keeping the length of the second connecting section relatively short and the length of the first connecting section relatively long helps to reduce the resistance during puncture.

[0018] The plum blossom-shaped outer wall of the first connecting section helps to reduce the contact with the tissue during puncture, thereby achieving the purpose of reducing the puncture resistance.

[0019] As a preferred, the four protrusions on the inner wall of the pressure-resistant section are arranged in the same direction as the cross-shaped cross section of the drainage section.

[0020] The drainage tube is provided with a scale and a development line on the tube wall, and the scale is provided on the tube wall by printing. The depth of the drainage tube can be determined by the scale and the development line.

[0021] The use method of the drainage tube is as follows: the guide needle is used to puncture into the corresponding part of the patient, the drainage tube is guided into the patient's body from the part, and then the guide needle is pulled out of the patient's body, so that the drainage section and the pressure-resistant section are placed inside the drainage part of the patient, and the rest of the first connecting section and the second connecting section are placed outside the surface of the patient. The position and state of the drainage tube during puncture are determined by the scale and the development line on the tube wall of the drainage tube, then the opening of the combined fixing aid is unfolded, the combined fixing aid is arranged on the first connecting section outside the surface of the patient, the opening is closed, the bottom wall of the bottom of the combined fixing aid is tightly attached to the surface of the drainage part of the patient, and the skin of the drainage part can be fixed to the bottom wall of the bottom by various fixing methods in the art, specifically by suture fixation or adhesive fixation. After the skin of the drainage part is fixed to the bottom wall of the bottom, the hanging rope is fastened to the corresponding carabiner, the fixation of the combined fixing aid is completed, and the drainage tube extends out along the side hole in an inclined angle, then the guide needle is removed, the second drainage section is connected to the drainage ball, the other end of the drainage ball is connected to the drainage bag provided with a drainage valve, and subsequent drainage operation can be performed.

[0022] The combined drainage tube capable of reducing puncture resistance can reduce the friction with the tissue during the puncture process through the cooperation of the plum-blossom-shaped outer wall of the first connecting section and the variable-diameter needle, so that the puncture resistance is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The overall schematic view of the combined drainage tube capable of reducing puncture resistance is shown in the figure.

[0024] Figure 2 The cross-sectional view of the middle drainage section A-A is shown in the figure. Figure 1

[0025] Figure 3 The cross-sectional view of the middle compression-resistant section B-B is shown in the figure. Figure 1

[0026] Figure 4 The cross-sectional view of the first connecting section C-C in the middle is shown in the figure. Figure 1

[0027] Figure 5 The cross-sectional view of the second connecting section D-D in the middle is shown in the figure. Figure 1

[0028] The top view of the combined fixing auxiliary device is shown in the figure. Figure 6

[0029] The side view of the combined fixing auxiliary device is shown in the figure. Figure 7

[0030] The schematic view of the use state of the drainage tube and the combined fixing auxiliary device is shown in the figure. Figure 8

[0031] The schematic view of the connection between the drainage tube and the drainage device after the drainage tube is placed is shown in the figure. Figure 9

[0032] In the figure, 01 is a drainage section, 02 is a compression-resistant section, 03 is a first connecting section, 04 is a second connecting section, 05 is a scale, 06 is a developing line, 07 is a guide needle, 08 is a combined fixing auxiliary device, 081 is a hanging buckle, 082 is a hanging rope, 083 is an opening, 084 is a side hole, 085 is a top, 086 is a bottom, 087 is a middle, 088 is a through hole, 09 is a drainage ball, 10 is a drainage bag, and 1001 is a drainage valve. DETAILED DESCRIPTION

[0033] ​​​​The technical scheme of the utility model will be further explained in combination with specific embodiments, and these embodiments are only used for explaining the technical scheme of the utility model in more detail and should not be understood as limiting the protection scope of the utility model.

[0034] As shown in Figures 1-5 The utility model provides a combined drainage tube which reduces puncture resistance, comprising a drainage tube body and a combined fixing aid 08, the pipe diameter of the drainage tube body is uniform and integrally formed, comprising a drainage section 01 in cross section, a compression resistance section 02 connected with one end of the drainage section 01 and provided with a protrusion on the inner wall, a first connecting section 03 connected with the other end of the drainage section 01 opposite the compression resistance section 02, and a second connecting section 04 connected with the other end of the first connecting section 03 opposite the compression resistance section 02, the second connecting section 04 is connected with a guide needle 07 at the other end opposite the first connecting section 03, the second connecting section 04 is a circular tube, and the outer wall of the first connecting section 03 is in plum blossom shape.

[0035] The outer wall of the first connecting section 03 is in plum blossom shape, which can reduce the resistance in the puncture process and reduce the contact area of the first connecting section 03 and the tissue.

[0036] As shown in Figure 6 And Figure 7 The combined fixing aid 08 is detachably fixed to the first connecting section 03, the combined fixing aid 08 comprises a top part 085, a middle part 087 and a bottom part 086, the bottom part 086 of the combined fixing aid 08 is tightly fixed to the surface of the drainage site of the patient after being fixed, the diameter of the middle part 087 is smaller than that of the top part 085 and the bottom part 086, the combined fixing aid 08 is internally provided with a through hole 088 penetrating from top to bottom, the inner wall of the through hole 088 is matched with the outer wall of the first connecting section 03, and a fastening assembly is arranged on the middle part 087.

[0037] The combined fixing aid 08 is made of elastic material, and when it is fixed to the first connecting section 03, it can be fixed by elastically extruding the first connecting section 03.

[0038] The fastening assembly comprises a plurality of hooks 081 arranged in a whole circle in the middle part 087 of the combined fixing aid 08, and a hanging rope 082 fixedly arranged on the middle part 087, the hanging rope 082 is provided with fixing holes matched with the hooks 081, and the fixing holes can be fixed with the hooks 081 through interference fit.

[0039] The hanging rope 082 is made of elastic material, and the combined fixing aid 08 is fastened through the elastic tension of the hanging rope 082.

[0040] The combined fixing aid 08 is provided with an opening 083 along its circumferential direction, which extends from its outer circumference to the inner wall of the through hole 088. The combined fixing aid 08 can be unfolded or closed through the opening 083. After the drainage tube is punctured, the position and puncture state of the drainage tube are determined through the scale 05 and the developing line 06. The drainage section 01 and the pressure-resistant section 02 are placed in the patient's body, and the remaining first connecting section 03 and second connecting section 04 are placed outside the body surface. The unfolded combined fixing aid 08 is placed in the first connecting section 03, and then the opening 083 is closed. The skin of the drainage site is fixed to the bottom wall of the bottom part 086. The skin of the drainage site can be fixed to the bottom wall of the bottom part 086 by various fixing methods in the art, specifically by suture fixation or adhesive fixation. After the skin of the drainage site is fixed to the bottom wall of the bottom part 086, the hanging rope 082 is fastened to the corresponding hanging buckle 081 to complete the fixation of the combined fixing aid 08. After fixation, the bottom wall of the bottom part 086 of the combined fixing aid 08 is tightly fixed to the surface of the drainage site of the patient.

[0041] The side hole 084 is provided on the top part 085 of the combined fixing aid 08 along its radial direction. The side hole 084 is a semicircular hole with a diameter ≥ the diameter of the through hole 088 and a radius < the height of the top part 085. After the drainage tube reaches the top part 085 through the bottom part 086 and the middle part 087, it can be inclined at a certain angle to pass out of the combined fixing aid 08 through the side hole 084. This can prevent the drainage tube from arching too high and the drainage from being poor due to excessive bending of the drainage tube.

[0042] The guide needle 07 is a variable-diameter guide needle, whose diameter changes from thick to thin from its end connected to the second connecting section 04 to the other end. The maximum diameter of the end of the guide needle 07 connected to the second connecting section 04 is > the outer diameter of the drainage tube.

[0043] The gradually decreasing diameter of the guide needle 07 can effectively reduce the puncture resistance of the guide needle 07 during puncture. Since the diameter of the end of the guide needle 07 is greater than the diameter of the drainage tube, a tunnel with a diameter greater than the drainage tube can be formed during puncture, which can effectively reduce the resistance received by the drainage tube during puncture. Since the diameter of the end of the guide needle 07 is greater than the drainage tube, a step-like structure caused by the outer diameter of the drainage tube being greater than the diameter of the end of the guide needle will not be produced when the guide needle 07 passes through the patient's body surface, thereby avoiding the problem of loosening between the drainage tube and the guide needle 07 caused by friction and tissue clamping the drainage tube.

[0044] The length ratio between the first connecting section and the second connecting section has no specific requirement, and preferably, the length of the first connecting section 03 is greater than the length of the second connecting section 04, and the second connecting section 04 is used for connecting the guide needle 07, and the length of the second connecting section 04 is relatively short, and the length of the first connecting section 03 is relatively long, which is helpful to reduce the resistance in the puncture process.

[0045] Preferably, the four protrusions on the inner wall of the pressure-resistant section 02 are arranged in the radial direction of the cross-shaped section of the drainage section 01.

[0046] The drainage tube is provided with a scale 05 and a developing line 06 on the tube wall, the scale 05 is provided on the tube wall by printing, and the depth of the drainage tube can be determined by the scale 05 and the developing line 06.

[0047] The use method of the drainage tube is as shown in Figure 8 and Figure 9 The guide needle 07 is used to puncture into the corresponding part of the patient, and the drainage tube is guided into the patient's body from the part, and then the guide needle 07 is pulled out of the patient's body surface, the position and puncture state of the drainage tube are determined by the scale 05 and the developing line 06, the drainage section 01 and the pressure-resistant section 02 are arranged inside the drainage part of the patient, and the rest of the first connecting section 03 and the second connecting section 04 are arranged outside the patient's body surface, then the opening 083 of the combined fixing aid 08 is unfolded, the combined fixing aid 08 is arranged on the first connecting section 03 outside the body surface, the opening 083 is closed, the bottom wall of the bottom part 086 of the combined fixing aid 08 is tightly attached to the surface of the drainage part of the patient, the skin of the drainage part is fixed to the bottom wall of the bottom part 086, the skin of the drainage part can be fixed to the bottom wall of the bottom part 086 by various fixing methods in the art, and the skin of the drainage part can be fixed to the bottom wall of the bottom part 086 by sewing or pasting, after the skin of the drainage part is fixed to the bottom wall of the bottom part 086, the hanging rope 082 is fastened to the corresponding hanging buckle 081, the fixing of the combined fixing aid 08 is completed, and the drainage tube extends out of the side hole 084 in an inclined angle, then the guide needle 07 is removed, the second drainage section 04 is connected with the drainage device, and specifically, the second drainage section 04 is connected with the drainage ball 09, the other end of the drainage ball 09 is connected with the drainage bag 10, the drainage bag 10 is provided with a drainage valve 1001, and subsequent drainage operation can be performed.

[0048] The above only describes the preferred embodiments of the present application, and is not used to limit the present application, and any equivalent replacement, modification, etc. made by the person skilled in the art without any creative labor within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A combined drainage tube for reducing puncture resistance, comprising a drainage tube body and a combined fixation aid (08), characterized in that: The drainage tube body is integrally formed with uniform diameter and includes a drainage section (01) in cross section, a compression-resistant section (02) connected to one end of the drainage section (01) and provided with a protrusion on the inner wall, a first connecting section (03) connected to the other end of the drainage section (01) opposite the compression-resistant section (02), and a second connecting section (04) connected to the other end of the first connecting section (03) opposite the compression-resistant section (02), the second connecting section (04) is connected to the guide needle (07) at the other end of the first connecting section (03), the second connecting section (04) is a circular tube, and the outer wall of the first connecting section (03) is in the shape of plum blossom. The combined fixing aid (08) is detachably fixed to the first connecting section (03), the combined fixing aid (08) includes a top portion (085), a middle portion (087), and a bottom portion (086), the bottom portion (086) of the combined fixing aid (08) is tightly fixed to the surface of the drainage site of the patient after being fixed, the diameter of the middle portion (087) is smaller than that of the top portion (085) and the bottom portion (086), the combined fixing aid (08) is internally provided with a through hole (088) extending from top to bottom, the inner wall of the through hole (088) is matched with the outer wall of the first connecting section (03), and a fastening assembly is arranged on the middle portion (087).

2. The combination drainage tube of reduced puncture resistance according to claim 1, characterized in that The fastening assembly includes a plurality of hooks (081) arranged in a whole circle on the middle portion (087) of the combined fixing aid, and a hanging rope (082) fixedly arranged on the middle portion (087), the hanging rope (082) is provided with fixing holes matched with the hooks (081), and the fixing holes are matched and fixed with the hooks (081).

3. The combination drainage tube of claim 1, wherein, The combined fixing aid (08) is provided with an opening (083) in the radial direction along the circumference thereof, the opening (083) extends from the outer circumference to the inner wall of the through hole (088), and the combined fixing aid (08) can be unfolded or closed through the opening (083).

4. The combination drainage tube of reduced puncture resistance of claim 1, wherein, The top portion (085) of the combined fixing aid is provided with a side hole (084) in the radial direction, the side hole (084) is a semicircular hole with a diameter greater than or equal to the diameter of the through hole (088) and a radius less than the height of the top portion (085).

5. The combination drainage tube of reduced puncture resistance of claim 1, wherein, The guide needle (07) is a variable-diameter guide needle, the diameter of the guide needle (07) changes from thick to thin from the end connected to the second connecting section (04) to the other end, and the maximum diameter of the end of the guide needle (07) connected to the second connecting section (04) is greater than the outer diameter of the drainage tube.

6. The combination drainage tube of reduced puncture resistance according to claim 5, characterized in that The length of the first connecting section (03) is greater than or equal to the length of the second connecting section (04).

7. The combination drainage tube of reduced penetration resistance according to claim 1, wherein, The protrusions on the inner wall of the compression-resistant section (02) are four, and the radial directions of the protrusions are consistent with the cross section of the drainage section (01).

8. The combination drainage tube of any one of claims 1-7, wherein, The scale (05) and the developing line (06) are arranged on the wall of the drainage tube, and the scale (05) is arranged on the wall by printing.

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