Subcutaneous diving tunnel construction device

Abstract

The utility model provides a subcutaneous diving tunnel construction device, which relates to medical instruments and comprises a handle provided with a through hole penetrating through the handle, and a clamping groove arranged on one side of the handle; the channel pipe is arranged in the through hole in a penetrating manner; the guiding device comprises a flexible cable, the two ends of the flexible cable are provided with a conical head and a pipe clamping column used for being connected with a drainage pipe respectively, the flexible cable is arranged in the channel pipe and the through hole in a penetrating mode, and when the pipe clamping column penetrates out of the channel pipe from one end of the channel pipe and is clamped in the clamping groove, the pipe clamping column is connected with the drainage pipe. The conical head abuts against the other end of the channel pipe. The subcutaneous sneaking tunnel construction device is suitable for construction of a long-distance or short-distance sneaking tunnel, selection can be conducted according to the illness state of a patient, and meanwhile the subcutaneous sneaking tunnel construction device is simple in structure, few in component, convenient to assemble and disassemble and convenient to disinfect so as to be repeatedly used.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical apparatus and instruments, especially a subcutaneous tunneling tunneling device. BACKGROUND

[0002] Neurosurgery is a branch of surgery that diagnoses and treats diseases related to the human nervous system. With the acceleration of population aging and accidental injuries, brain diseases such as brain tumors, brain trauma, cerebral hemorrhage and functional neurological diseases, which are mainly treated by surgery, are also on the rise.

[0003] Extracranial drainage is one of the most commonly used treatment techniques in neurosurgery, which refers to the continuous drainage of cerebrospinal fluid from the ventricle or lumbar spine to the outside of the body. Neurosurgery, brain trauma, cerebrovascular disease, intracranial infection, brain tumor-induced hydrocephalus and other common problems of the nervous system require cerebrospinal fluid extracranial drainage, the main purpose of which is to drain bloody or infected cerebrospinal fluid outside the skull, and also for monitoring, controlling intracranial pressure and injecting drugs into the central nervous system.

[0004] Craniotomy damages the peripheral tissues of the brain and the blood-brain barrier, and various pathogenic bacteria can easily enter the brain tissue and cerebrospinal fluid from the blood circulation and open channels to form an infection; because the cerebrospinal fluid lacks complement and antibody, and there are no phagocytes, it is a rich bacterial culture medium, once bacteria invade, they can rapidly spread along the subarachnoid space, and there is a large amount of purulent exudate covering the brain surface and deposited in the brain grooves, brain pools and the base of the brain; the postoperative drainage tube is connected to the outside world, which becomes an important source of infection.

[0005] The market uses a drainage catheter for short-range tunneling, i.e. short-distance tunneling under the scalp, which still has the risk of intracranial infection. Studies have shown that long-range tunneling can greatly reduce the risk of intracranial infection, i.e. long-distance subcutaneous tunneling from the neck to the abdomen. Therefore, it is an important research direction to quickly and stably and accurately establish a long-distance subcutaneous tunneling channel.

[0006] The existing long-distance subcutaneous tunneling device has a relatively complex structure, and has many operation steps when used, which can easily cause damage to the patient. Therefore, the present application provides a subcutaneous tunneling tunneling device. Utility model content

[0007] The utility model provides a subcutaneous tunneling tunneling device, which aims to provide a simple subcutaneous tunneling tunneling device, simplify the operation steps and reduce the damage to the patient

[0008] In order to achieve the above purpose, the embodiment of the utility model provides a subcutaneous tunneling tunneling device, which comprises:

[0009] The handle is provided with a through hole penetrating through the handle, and a clamping groove is further arranged on one side of the handle;

[0010] a channel pipe arranged in the through hole;

[0011] a guide comprising a flexible cable, two ends of the flexible cable are respectively provided with a conical head and a clamping pipe column for connecting a drainage tube, the flexible cable is arranged in the channel pipe and the through hole, when the clamping pipe column is clamped in the clamping groove by being arranged in the channel pipe from one end of the channel pipe, the conical head abuts against the other end of the channel pipe.

[0012] Preferably, a winding column is further arranged on the handle, and the winding column and the clamping groove are respectively arranged on two sides of the through hole.

[0013] The handle is further formed with an arc-shaped protrusion on the side with the clamping groove, the arc-shaped protrusion is ergonomic, and the winding column and the clamping groove are located between the two arc-shaped protrusions.

[0014] Preferably, the through hole has at least one first rotation-stopping surface, the channel pipe is provided with a second rotation-stopping surface at one end arranged in the through hole, the first rotation-stopping surface and the second rotation-stopping surface cooperate to limit rotation of the channel pipe in the through hole.

[0015] Preferably, a threaded hole is further arranged on the handle, the threaded hole is arranged along the radial direction of the through hole, and a locking bolt is screwed in the threaded hole and abuts against the channel pipe.

[0016] Preferably, the through hole has one first rotation-stopping surface, the first rotation-stopping surface is parallel to the axial direction of the through hole, the channel pipe is provided with a second rotation-stopping surface, and the first rotation-stopping surface and the second rotation-stopping surface are flush.

[0017] Preferably, the channel pipe comprises a first pipe body for connecting the handle, a second pipe body for connecting the conical head, and a pipe unit for connecting the first pipe body and the second pipe body.

[0018] One end of the first pipe body is provided with a second rotation-stopping surface, and the other end is detachably connected with the pipe unit.

[0019] One end of the second pipe body is connected with the conical head, and the other end is detachably connected with the pipe unit.

[0020] The pipe unit is composed of one or more third pipe bodies, and the plurality of third pipe bodies are connected in sequence.

[0021] Preferably, the third pipe bodies are threadedly connected, and the pipe unit is threadedly connected with the first pipe body and the second pipe body.

[0022] Preferably, the flexible cable is fixedly connected with the conical head.

[0023] Preferably, the flexible cable comprises a first section connecting the clamping tube column, a second section for connecting the conical head, and a third section for connecting the first section and the second section, the first section and the third section, the third section and the second section, and the third sections are provided with quick connection structures.

[0024] The third section is provided with one or more third sections connected in sequence.

[0025] Preferably, the clamping tube column forms a shoulder in the circumferential direction, and the shoulder is used for clamping in the clamping groove.

[0026] The above scheme of the utility model has the following beneficial effects:

[0027] The subcutaneous tunneling tunnel construction device provided by the application is suitable for construction of long-distance or short-distance tunneling tunnels, can be selected according to the condition of a patient, and has the advantages of simple structure, few components, convenient assembly and disassembly, and convenient disinfection for repeated use. When the device is used, the operation is simple, and the damage to the patient can be reduced.

[0028] Other features and advantages of the utility model will be described in detail in the following specific embodiment part. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a cross-sectional schematic view of the utility model;

[0030] Figure 2 is a three-dimensional schematic view of the handle;

[0031] Figure 3 is a left view of the handle;

[0032] Figure 4a is a channel schematic view with one first rotation-stopping surface;

[0033] Figure 4b is a channel tube schematic view with one second rotation-stopping surface;

[0034] Figure 5a is a channel schematic view with three first rotation-stopping surfaces;

[0035] Figure 5b is a channel tube schematic view with three second rotation-stopping surfaces;

[0036] Figure 6 is a channel tube disassembly schematic view;

[0037] Figure 7 is a schematic view of the guide;

[0038] Figure 8 is Figure 7 is an enlarged view of part A in FIG.

[0039] [Legend of the drawing]

[0040] 100-handle, 110-through hole, 111-first rotation-stopping surface, 120-clamping groove, 130-winding column, 140-arc-shaped protrusion, 150-locking bolt, 151-limiting pin,

[0041] 200-channel pipe, 210-second rotation-stopping surface, 220-first pipe body, 221-limiting hole, 230-second pipe body, 240-third pipe body;

[0042] 300-guide, 310-flexible cable, 311-first segment, 312-second segment, 313-third segment, 320-conical head, 321-sharp end, 322-column end, 330-clamping pipe column, 331-shoulder, 340-quick-connection socket, 350-quick-connection plug. DETAILED DESCRIPTION

[0043] To make the technical problems, technical solutions and advantages to be solved by the present application more clear, the following will be described in detail in combination with the drawings and specific embodiments.

[0044] As Figures 1-8 shown, the embodiment of the present application provides a subcutaneous tunneling tunnel construction device, which comprises a handle 100 for holding and applying force, a channel pipe 200 and a guide 300. Wherein, a through hole 110 penetrating the handle 100 is arranged on the handle 100, and a clamping groove 120 is further arranged on one side of the handle 100. The channel pipe 200 made of hard material is arranged in the through hole 110. The hard material can be stainless steel material or other materials. The guide 300 comprises a flexible cable 310, the first end of the flexible cable 310 is provided with a conical head 320, the second end is provided with a clamping pipe column 330, the clamping pipe column 330 is used for connecting a drainage tube, the sharp end 321 of the conical head 320 is passivated to avoid the conical head 320 injuring the tissue during the tunnel construction. The guide 300 is arranged in the channel pipe 200 and the through hole 110, specifically, one end of the guide 300 with the clamping pipe column 330 is arranged in the channel pipe 200 and is clamped in the clamping groove 120 after being pulled out of the through hole 110. When the clamping pipe column 330 is clamped in the clamping groove 120, the conical head 320 is abutted on the other end of the channel pipe 200 through the pulling of the flexible cable 310, so as to avoid the conical head 320 from shaking during the tunnel construction.

[0045] In the application, the tunnel is opened by using the blunt conical head 320, the channel tube 200 supports the tissue behind the conical head 320, forming a stable environment, after the tunnel is opened, the drainage tube is connected with the clamping pipe column 330, the conical head 320 is pulled, so that the drainage tube moves along the channel tube 200, until the drainage tube penetrates out of the channel tube 200, and after penetrating out, the channel tube 200 is taken out from the tissue. The subcutaneous tunneling structure device provided by the application has simple structure, can reduce the operation steps in the operation, and reduces the use difficulty.

[0046] In an embodiment of the application, the handle 100 is also provided with a winding column 130, and the winding column 130 and the clamping groove 120 are located on the two sides of the through hole 110. When the flexible cable 310 penetrates out of the through hole 110, it is wound on the winding column 130 for several turns and then clamped in the clamping groove 120. In the embodiment, the flexible cable 310 can be bent in any shape, and through the winding on the winding column 130, the tension of the flexible cable 310 is maintained, so that the conical head 320 is not accidentally fallen off or shaken due to the loosening of the flexible cable 310 when the tunnel is opened.

[0047] Further, the side of the handle 100 provided with the clamping groove 120 is also provided with an arc-shaped protrusion 140, and the arc-shaped protrusion 140 is provided with two arc-shaped protrusions 140, which are ergonomic and convenient for the operator to hold and apply force. The aforementioned winding column 130 and clamping groove 120 are located between the two arc-shaped protrusions 140.

[0048] Preferably, the height of the two arc-shaped protrusions 140 is higher than the height of the winding column 130, so as to avoid the operator touching the winding column 130 when applying force.

[0049] In the application, the two arc-shaped protrusions 140 are connected with a reinforcing plate, and the reinforcing plate is provided with a notch, which is the aforementioned clamping groove 120. The winding column 130 is arranged on the other side of the through hole 110, and the axial direction of the winding column 130 is parallel to the axial direction of the through hole 110.

[0050] In another embodiment of the application, at least one rotation stopping surface is arranged in the through hole 110, and the end of the channel tube 200 penetrating the first through hole 110 is also provided with a second rotation stopping surface 210, the number of the first rotation stopping surface 111 and the second rotation stopping surface 210 is the same, and when the channel tube 200 penetrates the through hole 110, the first rotation stopping surface 111 and the second rotation stopping surface 210 are surface-pasted to avoid the relative rotation of the handle 100 and the channel tube 200 in the axial direction of the channel tube 200.

[0051] It can be known that a rotation stopping surface can be arranged in the through hole 110, and a second rotation stopping surface 210 is arranged on the channel pipe 200 in correspondence. The first rotation stopping surface 111 in the through hole 110 is arranged parallel to the axial direction of the through hole 110, and the first rotation stopping surface 111 is a plane. The second rotation stopping surface 210 is arranged parallel to the axial direction of the channel pipe 200, and the second rotation stopping surface 210 is a plane. In assembly, the first rotation stopping surface 111 and the second rotation stopping surface 210 are surface-fitted. When the second rotation stopping surface 210 is arranged on the channel pipe 200, a plane can be cut along the axial direction of the channel pipe 200 at one end of the channel pipe 200 inserted into the through hole 110, and the plane intersects the channel pipe 200.

[0052] Similarly, two first rotation stopping surfaces 111 can be arranged in the through hole 110, and two second rotation stopping surfaces 210 are arranged on the channel pipe 200 in correspondence.

[0053] When three first rotation stopping surfaces 111 are arranged in the through hole 110, the three first rotation stopping surfaces 111 can be sequentially connected in head-to-tail to form a triangle. When the channel pipe 200 is provided with three second rotation stopping surfaces 210, a variable-diameter pipe with a triangular cross section can be arranged at one end of the channel pipe 200 inserted into the through hole 110, the variable-diameter pipe is smoothly connected with the channel pipe 200, the variable-diameter pipe is used for insertion into the through hole 110, and the three sides of the variable-diameter pipe are the second rotation stopping surfaces 210.

[0054] Similarly, more than three first rotation stopping surfaces 111 can also be arranged in the through hole 110, and the more than three first rotation stopping surfaces 111 are sequentially connected in head-to-tail to form a regular polygon; a variable-diameter pipe with a regular polygonal cross section can be arranged at one end of the channel pipe 200 inserted into the through hole 110, the variable-diameter pipe is smoothly connected with the channel pipe 200, the variable-diameter pipe is used for insertion into the through hole 110, and the more than three sides of the variable-diameter pipe are the second rotation stopping surfaces 210.

[0055] A threaded hole is further arranged on the handle 100, the threaded hole is arranged along the radial direction of the through hole 110, a locking bolt 150 is screwed in the threaded hole, and the locking bolt 150 is inserted into the threaded hole and abuts against the channel pipe 200. In some embodiments, the locking bolt 150 can also abut against the variable-diameter pipe. The locking bolt 150 limits the relative sliding of the through hole 110 and the channel pipe 200 in the axial direction.

[0056] In order to better limit the axial sliding of the locking bolt 150 on the channel pipe 200, a limiting hole 221 for insertion of the locking bolt 150 is further arranged at one end of the channel pipe 200 inserted into the through hole 110.

[0057] In the embodiment, the locking bolt 150 comprises a screw rod and a nut arranged at the upper end of the screw rod, the end of the screw rod away from the nut is pointed, the middle and lower part of the screw rod is provided with a thread, and the upper end of the screw rod and the nut are coaxial, and the diameter of the coaxial shaft is smaller than the diameter of the thread.

[0058] When the locking bolt 150 is loosened, the limiting pin 151 plays a role in limiting the locking bolt 150 from being pulled out of the threaded hole by hindering the thread of the locking bolt 150.

[0059] In some embodiments of the present application, the channel pipe 200 comprises a first pipe body 220, a second pipe body 230 and a pipe unit. The first pipe body 220 is used to connect the handle 100, that is, one end of the first pipe body 220 can be inserted into the through hole 110, and a second rotation-stopping surface 210 is arranged at the inserted end of the first pipe body 220. The second pipe body 230 is used to connect the conical head 320. The pipe unit is used to connect the first pipe body 220 and the second pipe body 230. The pipe unit is detachably connected with the first pipe body 220 and the second pipe body 230. The pipe unit is composed of one or more third pipe bodies 240. When there are multiple third pipe bodies 240, the multiple third pipe bodies 240 are sequentially and detachably connected. The total length of the channel pipe 200 can be adjusted according to actual use requirements.

[0060] Preferably, in the embodiment, the third pipe bodies 240 are connected by threads, that is, the two ends of the third pipe body 240 are respectively provided with internal threads and external threads, and the connection of the internal threads and the external threads realizes the connection of the pipe unit. The pipe unit and the first pipe body 220 are also connected by threads, and the pipe unit and the second pipe body 230 are also connected by threads. The first pipe body 220 and the second pipe body 230 are also respectively provided with internal threads and external threads at the two ends to realize the detachable connection with the pipe unit. It should be noted that when the third pipe bodies 240 are connected with each other and the pipe unit is connected with the first pipe body 220 and the second pipe body 230, the outer surface of the channel pipe 200 should be smooth to avoid damaging the tissue when constructing the tunnel.

[0061] The flexible cable 310 comprises a first segment 311 connected with the clamping pipe column 330, a second segment 312 used to connect the conical head 320, and a third segment 313 used to connect the first segment 311 and the second segment 312, and the first segment 311 and the third segment 313, the third segment 313 and the second segment 312, and the third segments 313 are provided with quick connection structures.

[0062] In the present application, the flexible cable 310 comprises a first section 311, a second section 312 and a third section 313, wherein one end of the first section 311 is used to connect the clamping pipe column 330, and the other end is provided with a quick connector plug 350; one end of the second section 312 is used to fixedly connect the conical head 320, and the other end is provided with a quick connector socket 340; the third section 313 is provided with at least one, and both ends of the third section 313 are respectively provided with a quick connector plug 350 and a quick connector socket 340, which are connected together to form a connection, and the quick connector socket 340 and the quick connector plug 350 constitute a quick connection structure.

[0063] The quick connection structure can also adopt the prior art.

[0064] Preferably, the flexible cable 310 is a stainless steel wire.

[0065] The clamping pipe column 330 is formed with a shoulder 331 in the circumferential direction, and the clamping pipe column 330 is clamped in the aforementioned gap through the shoulder 331, so as to achieve the clamping of the clamping pipe column 330 in the clamping groove 120.

[0066] In the present embodiment, the shoulder 331 is used to clamp in the gap on the one hand, so as to avoid the sliding of the clamping pipe column 330 in the clamping groove 120, and on the other hand, the shoulder 331 also plays a certain identification role. When the drainage tube is connected to the clamping pipe column 330, the drainage tube needs to be sleeved on the position of the shoulder 331, so as to avoid the drainage tube from falling off the clamping pipe column 330 when passing through the channel pipe 200.

[0067] The aforementioned conical head 320 comprises a pointed end 321 and a column end 322, wherein the pointed end 321 is conical, and the pointed end 321 is passivated; the column end 322 is arranged on the end face of the pointed end 321, wherein the diameter of the column end 322 is smaller than the diameter of the pointed end 321, and the diameter of the column end 322 is smaller than the inner diameter of the second pipe body 230, so that when the conical head 320 abuts against the second pipe body 230, the column end 322 is inserted into the second pipe body 230, and the end face of the pointed end 321 abuts against the end face of the second pipe body 230, thereby preventing the conical head 320 from shaking.

[0068] When the present application is used, the following steps are included:

[0069] S10. Selecting a channel pipe 200 and a flexible cable 310 with a suitable length, wherein the length of the flexible cable 310 is greater than the length of the channel pipe 200;

[0070] S20. Inserting the channel pipe 200 into the through hole 110 and locking the channel pipe 200 and the handle 100 by the locking bolt 150;

[0071] S30. The clamping pipe column 330 is passed through the passage pipe 200, and the clamping pipe column 330 is passed through the passage pipe 200 from the end of the handle 100 away, after the clamping pipe column 330 passes through the passage pipe 200 and the through hole 110 in turn, the position of the conical head 320 is adjusted, so that the conical head 320 is in contact with the passage pipe 200 stably, after the contact is stable, the flexible cable 310 is pulled tight, after the flexible cable 310 is wound on the winding column 130 for multiple turns in the tight state, the clamping pipe column 330 is clamped in the clamping groove 120. The number of turns of the flexible cable 310 is determined according to the length of the flexible cable 310 exceeding the through hole 110, and it is necessary to ensure that the flexible cable 310 does not have the loosening phenomenon when the flexible cable 310 is clamped on the winding column 130.

[0072] S40. The operator holds the handle 100, inserts the conical head 320 into the human tissue along the preset trajectory, and constructs a tunnel.

[0073] S50. After the conical head 320 penetrates the tissue, the clamping pipe column 330 is removed from the clamping groove 120, the drainage tube is connected to the clamping pipe column 330, the conical head 320 is pulled, the drainage tube completely penetrates the passage pipe 200, the clamping pipe column 330 is separated from the drainage tube, and then the passage pipe 200 is pushed out of the tissue, and the construction of the subcutaneous tunnel is completed.

[0074] The above is the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should be considered as the protection scope of the present application.

Claims

1. A subcutaneous tunnel construction device, characterized in that: The utility model provides a handle (100) is provided with the through hole (110) that passes through handle (100), and one side of handle (100) is also provided with the clamping groove (120); The channel pipe (200) is arranged in the through hole (110); The guide (300) includes a flexible cable (310), both ends of the flexible cable (310) are provided with a conical head (320) and a clamping pipe column (330) for connecting the drainage tube respectively, the flexible cable (310) is arranged in the channel pipe (200) and the through hole (110), when the clamping pipe column (330) is clamped in the channel pipe (200) from one end of the channel pipe (200) and the clamping groove (120), the conical head (320) abuts on the other end of the channel pipe (200). The handle (100) is also provided with a winding column (130) on one side, and the winding column (130) and the clamping groove (120) are located on both sides of the through hole (110) respectively.

2. The subcutaneous tunneling device of claim 1, wherein: The handle (100) is also formed with an arc-shaped protrusion (140) on the side with the clamping groove (120), the arc-shaped protrusion (140) conforms to ergonomics, and the winding column (130) and the clamping groove (120) are located between the two arc-shaped protrusions (140). The through hole (110) has at least one first rotation-stopping surface (111), the channel pipe (200) is provided with the same number of second rotation-stopping surfaces (210) as the first rotation-stopping surfaces (111) at one end arranged in the through hole (110), and the first rotation-stopping surfaces (111) and the second rotation-stopping surfaces (210) cooperate to limit the rotation of the channel pipe (200) in the through hole (110).

3. The subcutaneous tunneling device of claim 1, wherein: The handle (100) is also provided with a threaded hole, the threaded hole is arranged along the radial direction of the through hole (110), and a locking bolt (150) abutting on the channel pipe (200) is screwed in the threaded hole.

4. The subcutaneous tunneling device of claim 1, wherein: The through hole (110) has a first rotation-stopping surface (111), the first rotation-stopping surface (111) is parallel to the axial direction of the through hole (110), and the channel pipe (200) is provided with a second rotation-stopping surface (210), and the first rotation-stopping surface (111) and the second rotation-stopping surface (210) are surface-fitted.

5. The subcutaneous tunneling device of claim 3, wherein: The channel pipe (200) includes a first pipe body (220) for connecting the handle (100), a second pipe body (230) for connecting the conical head (320), and a pipe unit for connecting the first pipe body (220) and the second pipe body (230); 6. The subcutaneous tunneling device of claim 3, wherein: One end of the first pipe body (220) is provided with a second rotation-stopping surface (210), and the other end is detachably connected with the pipe unit; The other end of the second pipe body (230) is connected with the conical head (320), and the other end is detachably connected with the pipe unit; The pipe unit is composed of one or more third pipe bodies (240), and the plurality of third pipe bodies (240) are connected in sequence. The third pipe bodies (240) are screw-connected, and the pipe unit is screw-connected with the first pipe body (220) and the second pipe body (230).

7. The subcutaneous tunneling device of claim 6, wherein: ​ 8. The subcutaneous tunneling device of claim 1, wherein: The flexible cable (310) is fixedly connected with the conical head (320).

9. The subcutaneous tunneling device of claim 8, wherein: The flexible cable (310) comprises a first section (311) connected with the clamping pipe column (330), a second section (312) for connecting the conical head (320), and a third section (313) for connecting the first section (311) and the second section (312), and the first section (311) and the third section (313), the third section (313) and the second section (312), and the third sections (313) are provided with quick connection structures. The third section (313) is provided with one or more third sections (313) connected in sequence.

10. The subcutaneous tunneling device of claim 1, wherein: The clamping pipe column (330) is provided with a shoulder (331) in the circumferential direction, and the shoulder (331) is used for clamping in the clamping groove (120).

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