CN112869801A - Tunnel type threading device, tunnel type threading system and operation method thereof - Google Patents

Abstract

The invention provides a tunnel type threading device, a tunnel type threading system and an operation method thereof, wherein the tunnel type threading device comprises a transverse positioning rod and a longitudinal positioning rod; one part of the transverse positioning rod is used for penetrating a transverse tunnel of a preset object; the transverse positioning rod is provided with a wire outlet and a transverse channel arranged along the self axial direction, and the part of the transverse channel, which is positioned outside the transverse tunnel, is used for being communicated with the positive pressure end or the outside; the wire outlet is positioned at the part of the transverse positioning rod penetrating into the transverse tunnel and communicated with the transverse channel, and the wire outlet is used for allowing a suture or an implant to penetrate out of the transverse channel; the longitudinal positioning rod is provided with a longitudinal channel which is axially communicated along the longitudinal positioning rod, and one part of the longitudinal positioning rod is used for penetrating a longitudinal tunnel which is intersected with the transverse tunnel and is used for a preset object; the part of the longitudinal channel, which is positioned outside the longitudinal tunnel, is used for connecting with the negative pressure end, so that the distal end of the longitudinal positioning rod can suck the suture or the implant which passes out of the wire outlet through the longitudinal tunnel.

Description

Tunnel type threading device, tunnel type threading system and operation method thereof

Technical Field

The invention relates to the technical field of medical instruments, in particular to a tunnel type threading device, a tunnel type threading system and an operation method thereof.

Background

In addition to suturing the soft tissue itself, the repair of a torn soft tissue at the rotator cuff, knee, ankle, etc., generally requires pressing the soft tissue against the bone (tying the soft tissue to the bone) with a suture to promote healing. Presently, a revision surgery is usually performed with a suture anchor, which anchors a metal anchor in the bone and then binds soft tissue with a suture attached to the anchor, thereby pressing the soft tissue against the bone. However, due to the bulkiness of the anchor compared to the suture, it is not friendly to patients with smaller bone size or osteoporosis. If the selection of the anchor nail is improper or the position is deviated in the operation, the risk that the anchor nail falls off and the pulling force is insufficient and the like exists, secondary damage is easily caused to the affected part of the patient, the operation cost of the scheme is high, the difficulty is high, and the difficulty in repair is extremely high if the operation is carelessly damaged.

A safer surgical solution is to forego anchors, tunnel the bone, and thread sutures through the bone tunnel to complete the suture attachment of the soft tissue. However, no proper surgical tool exists at present, and only open surgery or suture passing under arthroscopic guidance through an epidural puncture needle can be selected, so that the surgical operation is extremely difficult.

Disclosure of Invention

The invention aims to provide a tunnel type thread passing device, a tunnel type thread passing system and an operation method thereof, which are used for solving the problems of fixing a thread through an anchor in the prior art.

To solve the above technical problem, the present invention provides a tunnel type threading device, which includes: a transverse positioning rod and a longitudinal positioning rod;

a part of the transverse positioning rod is used for penetrating a transverse tunnel of a preset object; the transverse positioning rod is provided with an outlet and a transverse channel arranged along the self axial direction, and the part of the transverse channel, which is positioned outside the transverse tunnel, is used for being communicated with a positive pressure end or the outside; the wire outlet is positioned at the part of the transverse positioning rod penetrating into the transverse tunnel and communicated with the transverse channel, and the wire outlet is used for allowing a suture or an implant to pass through the transverse channel;

the longitudinal positioning rod is provided with a longitudinal channel which is axially communicated along the longitudinal positioning rod, and one part of the longitudinal positioning rod is used for penetrating into a longitudinal tunnel which is intersected with the transverse tunnel of the preset object; the part of the longitudinal channel, which is positioned outside the longitudinal tunnel, is used for being connected with a negative pressure end, so that the distal end of the longitudinal positioning rod can suck the suture or the implant which passes through the wire outlet through the longitudinal tunnel.

Optionally, in the tunnel type cable passing device, the cable outlet is arranged on the transverse positioning rod along a radial direction of the transverse positioning rod.

Optionally, in the tunnel-type wire passing device, the outlet is used for aligning with the longitudinal tunnel and is used for facing the far end of the longitudinal channel.

Optionally, the tunnel type threading device further includes a sealing portion, and the sealing portion is used for sealing the proximal end of the transverse tunnel and the transverse positioning rod; and/or the sealing portion is used for sealing the proximal end of the longitudinal tunnel and the longitudinal positioning rod.

Optionally, the tunnel-type threading device further includes an input port, and the input port is disposed at a portion of the transverse positioning rod outside the transverse tunnel and is communicated with the transverse channel; the input port is for a suture or implant to pass through the transverse passage.

Optionally, in the tunnel type thread passing device, the input port is arranged on the transverse positioning rod along a radial direction of the transverse positioning rod.

Optionally, the tunnel type threading device further comprises a power pump, wherein a suction end of the power pump is configured as the negative pressure end and is connected with a part of the longitudinal channel, which is located outside the longitudinal tunnel; the air outlet end of the power pump is configured as the positive pressure end and is connected with the part, outside the transverse tunnel, of the transverse channel.

Optionally, in the tunneled suture passing device, after the suture or implant is sucked by the distal end of the longitudinal positioning rod, the longitudinal positioning rod is further used for withdrawing the longitudinal tunnel proximally to pull the distal end of the suture or implant out of the longitudinal tunnel.

In order to solve the above technical problem, the present invention further provides a tunnel type threading system, including: sutures or implants, and tunneled wirepassing devices as described above;

the suture or the distal end of the implant exits the outlet port through the transverse channel; and is used for abutting against the longitudinal positioning rod under the negative pressure suction of the longitudinal positioning rod.

Optionally, the tunneling threading system further comprises an attracting float coupled to a distal end of the suture or the implant; the radial dimension of the suction float is greater than the radial dimension of the suture or the implant.

Optionally, in the tunnel threading system, the distal end of the suction float is tapered, and the shape and size of the taper are adapted to the shape and size of the distal opening of the longitudinal channel.

Optionally, in the tunnel threading system, the attracting float and the distal end of the longitudinal positioning rod have at least one of a magnetic attraction member, an adhesive member, and a mechanical abutment member adapted to each other.

In order to solve the above technical problem, the present invention further provides an operating method of the tunnel type threading system, which utilizes the tunnel type threading system as described above; the operation method of the tunnel type threading system comprises the following steps:

providing a preset object provided with a transverse tunnel and a longitudinal tunnel which are crossed;

penetrating a part of the longitudinal positioning rod into the longitudinal tunnel;

penetrating a part of the transverse positioning rod into the transverse tunnel;

a longitudinal positioning rod is used for sucking the suture or the implant which penetrates out of the wire outlet through the longitudinal tunnel;

after the suture or implant is drawn by the distal end of the longitudinal positioning rod, the longitudinal positioning rod is withdrawn proximally out of the longitudinal tunnel to draw the distal end of the suture or implant out of the longitudinal tunnel.

Optionally, before the suture or the implant passing through the outlet is sucked through the longitudinal tunnel by using the longitudinal positioning rod, the operation method of the tunnel type threading system further includes:

sealing the proximal end of the transverse tunnel and the transverse positioning rod by using a sealing part; and/or sealing the proximal end of the longitudinal tunnel with the longitudinal positioning rod.

In summary, in the tunnel type threading device, the tunnel type threading system and the operating method thereof provided by the present invention, the tunnel type threading device includes a transverse positioning rod and a longitudinal positioning rod; a part of the transverse positioning rod is used for penetrating a transverse tunnel of a preset object; the transverse positioning rod is provided with an outlet and a transverse channel arranged along the self axial direction, and the part of the transverse channel, which is positioned outside the transverse tunnel, is used for being communicated with a positive pressure end or the outside; the wire outlet is positioned at the part of the transverse positioning rod penetrating into the transverse tunnel and communicated with the transverse channel, and the wire outlet is used for allowing a suture or an implant to pass through the transverse channel; the longitudinal positioning rod is provided with a longitudinal channel which is axially communicated along the longitudinal positioning rod, and one part of the longitudinal positioning rod is used for penetrating into a longitudinal tunnel which is intersected with the transverse tunnel of the preset object; the part of the longitudinal channel, which is positioned outside the longitudinal tunnel, is used for being connected with a negative pressure end, so that the distal end of the longitudinal positioning rod can suck the suture or the implant which passes through the wire outlet through the longitudinal tunnel.

With such a configuration, on a predetermined object in which a longitudinal tunnel and a transverse tunnel are previously opened, the distal end of the longitudinal positioning rod can be inserted into the longitudinal tunnel, and the distal end of the transverse positioning rod can be inserted into the transverse tunnel; the part of the longitudinal channel outside the longitudinal tunnel is connected with the negative pressure end, so that the far end of the longitudinal positioning rod can suck the suture or the implant which passes through the wire outlet; the longitudinal positioning rod is further withdrawn towards the near end out of the longitudinal tunnel so as to pull the far end of the suture or the implant out of the longitudinal tunnel, the suture can pass through the tunnel of the preset object, the fixation of the suture is reliable, and the risk caused by anchor falling off and the like is avoided; the tunnel type wire passing device is simple to use, low in cost and high in safety.

Drawings

It will be appreciated by those skilled in the art that the drawings are provided for a better understanding of the invention and do not constitute any limitation to the scope of the invention. Wherein:

FIG. 1 is a schematic view of a tunneling threading system according to an embodiment of the present invention;

fig. 2 is a partially enlarged view of a tunnel threading system according to an embodiment of the invention.

In the drawings:

1-transverse positioning rod; 10-a transverse channel; 11-outlet port; 12-an input port; 2-longitudinal positioning rod; 20-longitudinal channels; 21-a curved section; 22-straight section; 3-sewing; 4-a predetermined object; 41-longitudinal tunnel; 42-transverse tunnels; 5-a power pump; 51-a suction end; 52-air outlet end; 6-sealing part; 7-attract the float.

Detailed Description

To further clarify the objects, advantages and features of the present invention, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. It is to be noted that the drawings are in greatly simplified form and are not to scale, but are merely intended to facilitate and clarify the explanation of the embodiments of the present invention. Further, the structures illustrated in the drawings are often part of actual structures. In particular, the drawings may have different emphasis points and may sometimes be scaled differently.

As used in this application, the singular forms "a", "an" and "the" include plural referents, the term "or" is generally employed in a sense including "and/or," the terms "a" and "an" are generally employed in a sense including "at least one," the terms "at least two" are generally employed in a sense including "two or more," and the terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, features defined as "first", "second", "third" may explicitly or implicitly include one or at least two of such features, the term "proximal" generally being the end near the operator, the term "distal" generally being the end near the patient, i.e. near the lesion, the terms "end" and "proximal" and "distal" generally referring to the corresponding two parts, which include not only the end points, the terms "mounted", "connected" and "connected" being to be understood in a broad sense, e.g. as being fixedly connected, as well as detachably connected, or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. Furthermore, as used in the present invention, the disposition of an element with another element generally only means that there is a connection, coupling, fit or driving relationship between the two elements, and the connection, coupling, fit or driving relationship between the two elements may be direct or indirect through intermediate elements, and cannot be understood as indicating or implying any spatial positional relationship between the two elements, i.e., an element may be in any orientation inside, outside, above, below or to one side of another element, unless the content clearly indicates otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The invention aims to provide a tunnel type thread passing device, a tunnel type thread passing system and an operation method thereof, which are used for solving the problems of fixing a thread through an anchor in the prior art.

The following description refers to the accompanying drawings.

Referring to fig. 1 and fig. 2, fig. 1 is a schematic diagram of a tunnel threading system according to an embodiment of the invention; fig. 2 is a partially enlarged view of a tunnel threading system according to an embodiment of the invention.

As shown in fig. 1 and fig. 2, an embodiment of the present invention provides a tunnel type threading device, which includes a transverse positioning rod 1 and a longitudinal positioning rod 2; the tunnel type thread passing device is mainly used for tunnel type thread passing on a preset object 4 which is provided with a tunnel, for example, a suture or an implant (such as an interface screw, a strap titanium plate and the like) can pass through a bone tunnel, so as to solve the problems existing in the prior art that the suture is fixed through an anchor. Of course, the application scenario of the tunnel threading system is not limited to threading a bone tunnel, and the tunnel threading may be performed on other objects. In practice, the predetermined object 4 may be provided with a longitudinal tunnel 41 and a transverse tunnel 42 which are mutually angled and intersecting, and the longitudinal tunnel 41 and the transverse tunnel 42 may be provided by using a tool commonly used in the art, such as a bone drill, for example, which is not particularly limited by the present invention.

A part of the transverse positioning rod 1 is used for penetrating a transverse tunnel 42 of a predetermined object 4; the transverse positioning rod 1 is provided with an outlet 11 and a transverse channel 10 arranged along the self axial direction, and the part of the transverse channel 10 outside the transverse tunnel 42 is used for being communicated with a positive pressure end or the outside; the outlet 11 is positioned at the part of the transverse positioning rod 1 penetrating into the transverse tunnel 42 and is communicated with the transverse channel 10, and the outlet 11 is used for allowing a suture 3 or an implant to pass through the transverse channel 10; the longitudinal positioning rod 2 is provided with a longitudinal channel 20 which is axially penetrated along the longitudinal positioning rod 2, and a part of the longitudinal positioning rod 2 is used for penetrating a longitudinal tunnel 41 which is intersected with the transverse tunnel 42 of the preset object 4; the portion of the longitudinal channel 20 outside the longitudinal tunnel 41 is adapted to be connected to a negative pressure end so that the distal end of the longitudinal positioning rod 2 draws the suture 3 or implant through the longitudinal tunnel 41 out through the outlet 11.

Positive pressure end or external, refers to a port capable of providing positive pressure relative to the negative pressure end. The exterior may for example be the atmosphere, which is capable of providing atmospheric pressure to the transverse channels 10, while the pressure at the negative pressure end is lower than atmospheric pressure or lower than the pressure at the positive pressure end, thereby enabling gas to flow from the transverse channels 10 to the longitudinal channels 20. In an alternative embodiment, the tunnel-type threading device further comprises a power pump 5, wherein the suction end 51 of the power pump 5 is configured as the negative pressure end and is connected with the part of the longitudinal channel 20 outside the longitudinal tunnel 41; the air outlet end 52 of the power pump 5 is configured as the positive pressure end and is connected with the part of the transverse channel 10 outside the transverse tunnel 42. The power pump 5 is capable of pumping gas, and can be used as a negative pressure side and a positive pressure side. Alternatively, it is also possible to connect the portion of the transverse passage 10 outside the transverse tunnel 42 to the outside atmosphere by using only the suction end 51 of the power pump 5 as a negative pressure end, and connect the longitudinal passage 20, and this can also be achieved so that gas can flow from the transverse passage 10 to the longitudinal passage 20. Of course in other embodiments, other existing negative or positive pressure ports may be utilized, such as a hospital integrated negative suction port or air supply port.

It should be noted that the axial directions of the transverse positioning rod 1 and the longitudinal positioning rod 2 are not limited to a straight direction, and if the transverse positioning rod 1 or the longitudinal positioning rod 2 itself is curved, it should be understood that the respective axes are also curved, and the axial directions are curved directions. Therefore, the transverse channels 10 and the longitudinal channels 20 are not limited to be linear. In one example, the longitudinal positioning rod 2 comprises a curved section 21 and a straight section 22 connected to a proximal end of the curved section 21; the straight section 22 is parallel to the axial direction of the transverse positioning rod 1. For ease of use, the entire tunneled transit should extend substantially linearly to avoid interference with other parts of the patient's body. Thus, the transverse positioning rod 1 is substantially linear, and the straight section 22 of the longitudinal positioning rod 2 is arranged parallel to the axial direction of the transverse positioning rod 1.

Preferably, the outlet 11 is arranged on the transverse positioning rod 1 along the radial direction of the transverse positioning rod 1. Generally, the longitudinal tunnel 41 is disposed at an angle to the transverse tunnel 42, so that the outlet 11 can be opened along the radial direction of the transverse positioning rod 1 in order to facilitate the suction of the suture 3 or implant which passes out of the outlet 11. It should be noted that, here, the outlet 11 is in the radial direction of the transverse positioning rod 1, which should be understood in a broad sense, that the outlet 11 is opened toward the side of the transverse positioning rod 1, and the opening direction of the outlet 11 is not limited to be perpendicular to the axis of the transverse positioning rod 1. Preferably, the outlet 11 is intended to be aligned with the longitudinal tunnel 41 and is intended to be directed towards the distal end of the longitudinal channel 20. The alignment of the outlet 11 with the longitudinal tunnel 41 means that the position of the outlet 11 along the axial direction of the transverse positioning rod 1 should intersect the longitudinal tunnel 41, so that the suture 3 or the implant passing through the outlet 11 can directly pass through the longitudinal tunnel 41 to be attracted by the longitudinal channel 20, and can not pass through the turn of the transverse tunnel 42 and the longitudinal tunnel 41, and can avoid being stuck. Of course, in other embodiments, if the included angle between the longitudinal tunnel 41 and the transverse tunnel 42 is relatively large (e.g. greater than 90 °), the outlet 11 may also be opened at the distal end of the transverse positioning rod 1 along the axial direction of the transverse positioning rod 1, i.e. the distal end of the transverse channel 10 is opened to form the outlet 11, so that the suture 3 or implant passing through the outlet 11 can pass through a section of the transverse tunnel 42, and then pass through the longitudinal tunnel 41 after turning, and be attracted by the longitudinal channel 20.

Preferably, the tunnel-type threading device further comprises a sealing part 6, wherein the sealing part 6 is used for sealing the proximal end of the transverse tunnel 42 and the transverse positioning rod 1; and/or the sealing portion 6 is used for sealing the proximal end of the longitudinal tunnel 41 and the longitudinal positioning rod 2. The sealing part 6 may be a hemispherical bowl made of a soft material (e.g., rubber or silica gel), the transverse positioning rod 1 or the longitudinal positioning rod 2 passes through the sealing part 6 and is connected with the sealing part 6 in a sealing manner, and the bowl-shaped opening end of the sealing part 6 may surround the proximal end of the transverse tunnel 42 or the proximal end of the longitudinal tunnel 41 and be adsorbed on the predetermined object 4, so as to form a seal between the proximal end of the transverse tunnel 42 and the transverse positioning rod 1, or form a seal between the proximal end of the longitudinal tunnel 41 and the longitudinal positioning rod 2. It will be appreciated that in some embodiments, the proximal end of transverse tunnel 42 may not be sealed with seal 6 if the outer diameter of transverse locating rod 1 is matched to the inner diameter of transverse tunnel 42, i.e. the outer diameter of transverse locating rod 1 is only slightly smaller than the inner diameter of transverse tunnel 42; if the outer diameter of the longitudinal positioning rod 2 is adapted to the inner diameter of the longitudinal tunnel 41, the proximal end of the longitudinal tunnel 41 may not be sealed with the sealing portion 6. That is, in some embodiments, the seal 6 may be used to seal at the proximal end of the transverse tunnel 42 alternatively to the proximal end of the longitudinal tunnel 41. Preferably, after the proximal ends of the transverse tunnel 42 and the longitudinal tunnel 41 are sealed by the sealing portion 6, the inside and the outside of the bone tunnel are completely isolated, the external atmosphere does not leak into the inside of the bone tunnel, and when the suture is sucked through the longitudinal channel 20, the suture 3 or the implant can be reliably sucked at the distal end of the longitudinal positioning rod 2 only by air coming out from the outlet 11 of the transverse positioning rod 1.

Optionally, the tunnel-type threading device further includes an input port 12, where the input port 12 is disposed on a portion of the transverse positioning rod 1 outside the transverse tunnel 42 and is communicated with the transverse passage 10; the input port 12 is used for the passage of sutures 3 or implants into the transverse channel 10. In one example, the suture 3 passes from the input port 12 into the transverse channel 10 and out of the outlet port 11 through the transverse channel 10. The proximal portion of the suture 3 may extend outside of the input port 12 or be housed in a suture receiving mechanism (e.g., a hub or the like, not shown).

Preferably, the input port 12 is arranged on the transverse positioning rod 1 along the radial direction of the transverse positioning rod 1. In the example shown in fig. 1 and 2, the proximal end of the lateral registration rod 1 is connected to the gas outlet end 52 of the power pump 5, so that the input port 12 can be opened in the radial direction of the lateral registration rod 1. In other embodiments, where the transverse channel 10 is open at the proximal end of the transverse positioning rod 1, and the proximal end of the transverse channel 10 is open to the outside atmosphere, the proximal end of the transverse channel 10 may be used directly as the input port 12.

Optionally, after the suture 3 or implant is sucked at the distal end of the longitudinal positioning rod 2, the longitudinal positioning rod 2 is also used to withdraw the longitudinal tunnel 41 proximally to pull the distal end of the suture 3 or implant out of the longitudinal tunnel 41. It will be appreciated that after the suture 3 or implant is sucked by the distal end of the longitudinal positioning rod 2, the suction of the suture 3 or implant by the distal end of the longitudinal positioning rod 2 can be maintained by keeping the suction end connected to the longitudinal channel 20 open so that the pressure in the longitudinal channel 20 is less than the pressure in the longitudinal tunnel 41. At this point, the longitudinal positioning rod 2 is withdrawn proximally out of the longitudinal tunnel 41, and the suture 3 or implant is pulled out of the longitudinal tunnel 41.

The present embodiments also provide a tunneling threading system that includes a suture 3 or implant, and a tunneling threading device as described above. The distal end of the suture 3 or the implant passes out of the outlet 11 via the transverse channel 10; and is used for abutting against the longitudinal positioning rod 2 under the negative pressure suction of the longitudinal positioning rod 2.

In some embodiments, either the suture 3 or the implant may be provided integrally with the tunneled transit device, such that the tunneled transit system is a disposable consumable. Circular, flat or flat (i.e. two ends are round and the middle is flat) sutures 3 can be preset according to the type of suture needed by the tendon repair operation. The material of the suture 3 may be: natural fibers, synthetic fibers or metal wires, etc. Natural fibers such as silk and the like; synthetic fibers such as ultra high molecular weight polyethylene, polyamide 6/6, polypropylene, polyethylene terephthalate, polyamide 6, and the like. 3-0-5 round suture lines and 0.1-5 mm flat wires can be preset. Of course, in other embodiments, the suture 3 may be provided separately from the tunneling threading device into which the suture 3 is assembled during use.

Optionally, the tunneled threading system further comprises an attracting float 7, the attracting float 7 being connected to the distal end of the suture 3 or the implant; the radial dimension of the suction float 7 is greater than the radial dimension of the suture 3 or the implant. The suction float 7, which may be made of a light and airtight material, has a volume such that it can be easily sucked under the negative pressure suction of the longitudinal positioning rod 2, thereby moving the suture 3 or the implant toward the longitudinal positioning rod 2.

Further, the distal end of the suction float 7 is tapered, and the shape and size of the taper are adapted to the shape and size of the distal opening of the longitudinal passage 20. The conical shape herein is not limited to a conical shape, but is broadly understood to be a shape having a small top and a large bottom, and may be, for example, a hexagonal pyramid shape. Preferably, the shape of the distal end cone of the suction float 7 is adapted to the shape of the distal opening of the longitudinal channel 20, for example, the distal end of the suction float 7 is hexagonal pyramid shaped, and the distal opening of the corresponding longitudinal channel 20 is hexagonal shaped. The dimensions of the cone are adapted to the dimensions of the longitudinal channel 20, i.e. the largest cross-section of the cone (typically its bottom surface) should be slightly larger than the cross-section at the distal opening of the longitudinal channel 20, so that the suction float 7, after being sucked by the longitudinal positioning rod 2, can be stuck outside the distal opening of the longitudinal channel 20 without being sucked into the longitudinal channel 20.

Preferably, the suction float 7 and the distal end of the longitudinal positioning rod 2 have at least one of a magnetic attraction, an adhesive and a mechanical abutment adapted thereto. In order to prevent the suture 3 or the implant from falling after the longitudinal positioning rod 2 sucks the suture 3 or the implant, a corresponding anti-falling structure may be provided on the suction float 7 in a matching manner with the longitudinal positioning rod 2. The anti-falling structure can be a magnetic attraction piece, an adhesive piece capable of being adhered with each other or a mechanical butt piece capable of being clamped with each other. Those skilled in the art can select a suitable anti-dropping structure according to the actual situation, and the present invention is not limited thereto. With this configuration, even if the negative pressure end connected to the longitudinal passage 20 fails after the suction float 7 is sucked by the longitudinal positioning rod 2, the suction float 7 does not fall off, and the suture 3 or the implant is prevented from falling back into the longitudinal passage 20.

Based on the above tunnel type threading system, this embodiment further provides an operation method of the tunnel type threading system, and the operation method of the tunnel type threading system is explained below based on the above tunnel type threading system.

The operation method of the tunnel type threading system comprises the following steps:

step S1: providing a predetermined object provided with a transverse tunnel 42 and a longitudinal tunnel 41 which intersect; the predetermined object may be, for example, a humerus, and the transverse tunnel 42 and the longitudinal tunnel 41 may be prepared with an opener or a bone drill.

Step S2: penetrating a portion of the longitudinal positioning rod 2 into the longitudinal tunnel 41;

step S3: penetrating a portion of the transverse locating rod 1 into the transverse tunnel 42;

step S4: sucking the suture 3 or implant passing out of the outlet 11 through the longitudinal tunnel 41 by means of a longitudinal positioning rod 2;

step S5: after the suture 3 or implant is sucked by the distal end of the longitudinal positioning rod 2, the longitudinal positioning rod 2 is withdrawn proximally out of the longitudinal tunnel 41 to pull the distal end of the suture 3 or implant out of the longitudinal tunnel 41.

This completes the preparation of a suture 3 or implant in the bone tunnel.

Preferably, before step S4, the method for operating a tunneling wire passing system further includes:

step S3A: sealing the proximal end of the transverse tunnel 42 and the transverse positioning rod 1 with a sealing part 6; and/or sealing the proximal end of the longitudinal tunnel 41 with the longitudinal positioning rod 2. For example, the sealing portion 6 can form a seal with the humeral surface by pressing on the hemispherical bowl of the sealing portion 6.

Optionally, the materials of the components such as the transverse positioning rod 1 and the longitudinal positioning rod 2 are medical metals, and can be independently selected from 12Cr13, 20Cr13, 05Cr17NiCu4Nb, 52Cr13Mo, 40Cr13, Y10Cr17, 06Cr19Ni10 and the like. Of course, the above materials are only examples and are not limiting on the materials of the components, and those skilled in the art can select other suitable materials according to the prior art.

Based on the above operating method of the tunnel threading system, the present embodiment further provides a readable storage medium, on which a program is stored, where the program is executed to implement the operating method of the tunnel threading system, and the readable storage medium may be integrated into the surgical robot system or may be attached to the surgical robot system separately. In use, the operating robot can be used for operating the tunnel threading system by running the program stored in the readable storage medium, so as to realize tunnel threading.

In summary, in the tunnel type threading device, the tunnel type threading system and the operating method thereof provided by the present invention, the tunnel type threading device includes a transverse positioning rod and a longitudinal positioning rod; a part of the transverse positioning rod is used for penetrating a transverse tunnel of a preset object; the transverse positioning rod is provided with an outlet and a transverse channel arranged along the self axial direction, and the part of the transverse channel, which is positioned outside the transverse tunnel, is used for being communicated with a positive pressure end or the outside; the wire outlet is positioned at the part of the transverse positioning rod penetrating into the transverse tunnel and communicated with the transverse channel, and the wire outlet is used for allowing a suture or an implant to pass through the transverse channel; the longitudinal positioning rod is provided with a longitudinal channel which is axially communicated along the longitudinal positioning rod, and one part of the longitudinal positioning rod is used for penetrating into a longitudinal tunnel which is intersected with the transverse tunnel of the preset object; the part of the longitudinal channel, which is positioned outside the longitudinal tunnel, is used for being connected with a negative pressure end, so that the distal end of the longitudinal positioning rod can suck the suture or the implant which passes through the wire outlet through the longitudinal tunnel.

With such a configuration, on a predetermined object in which a longitudinal tunnel and a transverse tunnel are previously opened, the distal end of the longitudinal positioning rod can be inserted into the longitudinal tunnel, and the distal end of the transverse positioning rod can be inserted into the transverse tunnel; the part of the longitudinal channel outside the longitudinal tunnel is connected with the negative pressure end, so that the far end of the longitudinal positioning rod can suck the suture or the implant which passes through the wire outlet; the longitudinal positioning rod is further withdrawn towards the near end out of the longitudinal tunnel so as to pull the far end of the suture or the implant out of the longitudinal tunnel, the suture can pass through the tunnel of the preset object, the fixation of the suture is reliable, and the risk caused by anchor falling off and the like is avoided; the tunnel type wire passing device is simple to use, low in cost and high in safety.

It should be noted that, several of the above embodiments may be combined with each other. The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art based on the above disclosure are within the scope of the appended claims.

Claims (14)

1. A tunneling-type wire passing device, comprising: a transverse positioning rod and a longitudinal positioning rod;

a part of the transverse positioning rod is used for penetrating a transverse tunnel of a preset object; the transverse positioning rod is provided with an outlet and a transverse channel arranged along the self axial direction, and the part of the transverse channel, which is positioned outside the transverse tunnel, is used for being communicated with a positive pressure end or the outside; the wire outlet is positioned at the part of the transverse positioning rod penetrating into the transverse tunnel and communicated with the transverse channel, and the wire outlet is used for allowing a suture or an implant to pass through the transverse channel;

the longitudinal positioning rod is provided with a longitudinal channel which is axially communicated along the longitudinal positioning rod, and one part of the longitudinal positioning rod is used for penetrating into a longitudinal tunnel which is intersected with the transverse tunnel of the preset object; the part of the longitudinal channel, which is positioned outside the longitudinal tunnel, is used for being connected with a negative pressure end, so that the distal end of the longitudinal positioning rod can suck the suture or the implant which passes through the wire outlet through the longitudinal tunnel.

2. The tunneling threading device of claim 1, wherein the outlet is disposed on the lateral positioning rod along a radial direction of the lateral positioning rod.

3. The tunneling threading device of claim 2, wherein the outlet is adapted to be aligned with the longitudinal tunnel and is adapted to face a distal end of the longitudinal channel.

4. The tunneling crossing device according to claim 1, further comprising a sealing portion for sealing the proximal end of the transverse tunnel and the transverse positioning rod; and/or the sealing portion is used for sealing the proximal end of the longitudinal tunnel and the longitudinal positioning rod.

5. The tunneling threading device of claim 1, further comprising an input port disposed at a portion of the lateral positioning rod outside the lateral tunnel and in communication with the lateral channel; the input port is for a suture or implant to pass through the transverse passage.

6. The tunneling threading device of claim 5, wherein the input port is disposed on the lateral positioning rod along a radial direction of the lateral positioning rod.

7. The tunneling crossing device according to claim 1, further comprising a power pump, wherein a suction end of the power pump is configured as the negative pressure end and is connected to a portion of the longitudinal passage located outside the longitudinal tunnel; the air outlet end of the power pump is configured as the positive pressure end and is connected with the part, outside the transverse tunnel, of the transverse channel.

8. The tunneling crossing device according to claim 1, wherein after the suture or implant is sucked by the distal end of the longitudinal positioning rod, the longitudinal positioning rod is further used to proximally withdraw the longitudinal tunnel to pull the distal end of the suture or implant out of the longitudinal tunnel.

9. A tunneling threading system, comprising: a suture or implant, and a tunneled pass device according to any one of claims 1 to 8;

the suture or the distal end of the implant exits the outlet port through the transverse channel; and is used for abutting against the longitudinal positioning rod under the negative pressure suction of the longitudinal positioning rod.

10. The tunneling threading system of claim 9, further comprising an attracting float coupled to a distal end of the suture or the implant; the radial dimension of the suction float is greater than the radial dimension of the suture or the implant.

11. The tunneling threading system of claim 10, wherein the distal end of the suction float is tapered, the shape and size of the taper matching the shape and size of the distal opening of the longitudinal channel.

12. The tunneling threading system of claim 10, wherein the suction float and the distal end of the longitudinal positioning rod have at least one of a magnetic attraction, an adhesive, and a mechanical abutment adapted thereto.

13. A method of operating a tunnel threading system, characterized by using a tunnel threading system according to any of claims 9 to 12; the operation method of the tunnel type threading system comprises the following steps:

providing a preset object provided with a transverse tunnel and a longitudinal tunnel which are crossed;

penetrating a part of the longitudinal positioning rod into the longitudinal tunnel;

penetrating a part of the transverse positioning rod into the transverse tunnel;

a longitudinal positioning rod is used for sucking the suture or the implant which penetrates out of the wire outlet through the longitudinal tunnel;

after the suture or implant is drawn by the distal end of the longitudinal positioning rod, the longitudinal positioning rod is withdrawn proximally out of the longitudinal tunnel to draw the distal end of the suture or implant out of the longitudinal tunnel.

14. The method of operating a tunneling threading system according to claim 13, wherein prior to drawing a suture or implant through the longitudinal tunnel and out of the exit port with a longitudinal positioning rod, the method further comprises:

sealing the proximal end of the transverse tunnel and the transverse positioning rod by using a sealing part; and/or sealing the proximal end of the longitudinal tunnel with the longitudinal positioning rod.

Images