Steel wire threading guide device for fracture reduction fixation

Abstract

The utility model discloses a steel wire threading guider for fracture reduction fixation, which comprises a first arc-shaped plate and a second arc-shaped plate, the first arc-shaped plate and the second arc-shaped plate are arranged, guide grooves are formed in the inner arc walls of the first arc-shaped plate and the second arc-shaped plate, and a wire inlet hole and a wire outlet hole which are communicated with the guide grooves are further formed. The guide grooves formed in the inner arc walls of the first arc-shaped plate and the second arc-shaped plate can be connected with each other and form a spiral shape with at least two circles, the first arc-shaped plate and the second arc-shaped plate surround to wrap the fracture end, a steel wire penetrates through the wire inlet hole, the steel wire surrounds the peripheral side of the fracture end in a spiral shape under the guide effect of the guide grooves, and the fracture end is wound around the steel wire through the wire inlet hole. And finally, the first arc-shaped plate and the second arc-shaped plate are separated from each other by holding the handles arranged on the first arc-shaped plate and the second arc-shaped plate, so that the penetrating process of the steel wire is completed, and the defect that only one circle of steel wire can penetrate each time in the prior art is overcome.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of medical equipment, and particularly relates to a steel wire threading guide for fracture reduction and fixation. BACKGROUND

[0002] Fracture is one of the common diseases in clinical work, and among them, the one that is easy to be displaced after reduction and external fixation is called unstable fracture, such as oblique fracture, spiral fracture and comminuted fracture. For this kind of unstable fracture, the clinical treatment usually adopts fracture reduction and internal fixation, and in the process of internal fixation, various specifications and models of steel wires are needed to be used to encircle, bind and fix the fracture end, so as to achieve the purpose of reducing and stabilizing the fracture end. In actual operation, the operator often pulls away the muscle, then peels off the periosteum, and then uses various bending pliers or fingers to transmit the steel wire to encircle the fracture end, which often leads to ischemia of the fracture end of the patient, causes delayed healing of the fracture after operation, and even long-term non-healing. In addition, if the operator uses hands to transmit the steel wire, it is easy to be pricked or scratched by the steel wire or the sharp corner of the fracture end, causing postoperative infection or the spread of infectious diseases between the doctor and the patient, which brings serious harm to the physical and mental health of the doctor and the patient.

[0003] In view of the above situation, the Chinese utility model patent No. 200820071379.5 (authorized publication No. CN201157402Y) "steel wire guide" discloses an instrument that can guide the steel wire to be threaded, which can conveniently and quickly guide the steel wire or silk thread to pass through the bone surface, and can smoothly complete the operation without peeling off the periosteum and with the cooperation of multiple people, solving the problem of damage and inability to operate in the current operation. It comprises a handle and a guide part, the guide part is a semicircular arc-shaped conduit for the steel wire to pass through, the rear end of the arc-shaped conduit is fixedly connected with the handle, the handle and the guide part are connected by screw thread, the front end of the arc-shaped conduit is pointed, and the arc-shaped conduit can be an elastic tube.

[0004] In addition, the Chinese utility model patent No. 201020592612.1 (authorized publication No. CN201814650U) "new steel wire guide" also discloses a steel wire guiding instrument, which comprises a guide needle, a guide rod and a handle, the front part of the guide needle is provided with a wire threading hole, the wire threading hole is suitable for various models of steel wire to pass through, and the outer periphery of the handle is provided with an anti-skid sleeve to prevent the handle from slipping off due to blood stains on the hands during the guiding process. Through the steel wire guide, the steel wire can be threaded without peeling off the periosteum, avoiding the damage of important blood vessels and tissues in the local area of the patient and the occurrence of various complications.

[0005] However, the above disclosed steel wire guide device has a problem that only one circle of steel wire can be threaded each time, and in order to improve the stability and firmness of the binding, two or more circles of steel wire are usually needed to achieve the purpose of reducing the fracture end and stabilizing the fracture end so as to prevent the fracture end from being displaced, and if such steel wire guide device is used, the operation of threading the steel wire needs to be repeated once for each additional circle, which to some extent brings trouble to the operator and affects the operation efficiency.

[0006] Therefore, how to provide a steel wire guide device capable of completing multiple circles of steel wire winding only by threading once is a problem to be solved by those skilled in the art. Practical new type content

[0007] The technical problem to be solved by the present utility model is to provide a steel wire guide device for fracture reduction and fixation, which is simple to operate and can complete multiple circles of steel wire winding only by threading once.

[0008] The technical solution adopted by the present utility model to solve the above technical problem is as follows: the steel wire guide device for fracture reduction and fixation comprises a first arc-shaped plate and a second arc-shaped plate capable of being mutually connected or separated, an inner arc wall of the first arc-shaped plate and the second arc-shaped plate is provided with a guide groove adapted to each other for guiding the threading of the steel wire, an outer arc wall of the first arc-shaped plate is provided with a wire inlet hole communicating with the guide groove for the steel wire to enter, an outer arc wall of the second arc-shaped plate is also provided with a wire outlet hole communicating with the guide groove for the steel wire to exit, in a state that the first arc-shaped plate and the second arc-shaped plate are mutually connected, the first arc-shaped plate and the second arc-shaped plate mutually enclose to form a ring-shaped body capable of covering the fracture end, and the guide grooves provided on the inner arc walls of the first arc-shaped plate and the second arc-shaped plate can be mutually connected and form a spiral shape with at least two circles in the length direction, and the outer side walls of the first arc-shaped plate and the second arc-shaped plate are also respectively formed with a handle on the same side to facilitate holding.

[0009] In order to better connect and transition between the guide groove and the wire inlet hole and the wire outlet hole, so that the steel wire can better enter the guide groove from the wire inlet hole and then exit from the wire outlet hole, preferably, in a state that the guide grooves on the first arc-shaped plate and the second arc-shaped plate are mutually connected to form a spiral shape, the wire inlet hole penetrates and extends in the tangential direction of the starting point of the guide groove, and the wire outlet hole penetrates and extends in the tangential direction of the terminal point of the guide groove.

[0010] In order to facilitate the operation and make the inlet end and outlet end of the steel wire face the operator, preferably, the outer arc wall of the first arc-shaped plate is provided with a first guide nozzle, the first guide nozzle is provided with a wire inlet channel communicated with the wire inlet hole, the outer arc wall of the second arc-shaped plate is provided with a second guide nozzle, the second guide nozzle is provided with a wire outlet channel communicated with the wire outlet hole, and the inlet end of the wire inlet channel and the outlet end of the wire outlet channel face the side provided with the handle.

[0011] In order to make the steel wire better pass through the guide groove and prevent the steel wire from running out of the guide groove to affect the passing, preferably, the cross section of the guide groove is circular, the width of the opening of the guide groove is greater than the outer diameter of the steel wire and less than the inner diameter of the guide groove.

[0012] In order to make the steel wire better pass through the guide groove and prevent the steel wire from running out of the guide groove to affect the passing, preferably, the cross section of the guide groove is long strip-shaped, the depth of the guide groove is greater than the width of the guide groove, and the bottom of the guide groove is further formed with an arc surface for adapting to the outer lateral wall of the steel wire.

[0013] In order to facilitate the abutment of the first arc-shaped plate and the second arc-shaped plate and enable the mutual locking when the two are abutted, preferably, the first arc-shaped plate is formed with a first abutment surface for abutting the second arc-shaped plate, the second arc-shaped plate is formed with a second abutment surface for abutting the first arc-shaped plate, and a dismounting structure for abutting or separating the first arc-shaped plate and the second arc-shaped plate is further arranged between the first arc-shaped plate and the second arc-shaped plate.

[0014] In order to optimize the overall structure of the dismounting structure and enable the better abutment and separation between the first arc-shaped plate and the second arc-shaped plate, preferably, the dismounting structure comprises a strip-shaped insertion block formed on the first abutment surface in the length direction and a strip-shaped insertion slot formed on the second abutment surface in the length direction, and the first arc-shaped plate and the second arc-shaped plate are detachably connected together through the mutual insertion of the strip-shaped insertion block and the strip-shaped insertion slot.

[0015] In order to optimize the overall structure of the dismounting structure and enable the better abutment and separation between the first arc-shaped plate and the second arc-shaped plate, preferably, the dismounting structure comprises a buckle arranged on the first arc-shaped plate and extending towards the second arc-shaped plate, and a clamping groove arranged on the second arc-shaped plate and adapted to the buckle, and the first arc-shaped plate and the second arc-shaped plate are detachably connected together through the mutual clamping of the buckle and the clamping groove.

[0016] In order to prevent the slipping phenomenon when separating the first arc-shaped plate and the second arc-shaped plate, preferably, the handle is provided with anti-skid lines for increasing the friction, and the handle is further provided with an anti-skid sleeve for increasing the friction.

[0017] Compared with the prior art, the utility model has the advantages that: through setting up first arc plate and second arc plate that can wrap fracture end in after mutual surrounding, and through setting up guide groove that is mutually adapted for guiding steel wire to pass on inner arc wall of first arc plate and second arc plate, still setting up silk inlet hole and silk outlet hole for communicating guide groove on first arc plate and second arc plate respectively, guide groove on inner arc wall of first arc plate and second arc plate can link to each other and form at least two spiral shapes under the condition that first arc plate and second arc plate are in the state of surrounding butt joint, when needing to pass steel wire to the fracture end of patient, first arc plate and second arc plate are surrounded and fracture end is wrapped in, then steel wire is passed in from silk inlet hole, steel wire will be spiral around the periphery side of fracture end under the guidance of guide groove and is passed out from silk outlet hole, finally through holding handle that is set up on first arc plate and second arc plate, first arc plate and second arc plate are separated from each other, so that the passing process of steel wire is completed, the drawback that only one circle of steel wire can be passed in each time in prior art is solved, and we can also control the winding circle number of steel wire that is passed in each time by changing the spiral circle number of guide groove, the stability and firmness of fracture end binding are enhanced, and the operation efficiency and operation quality are greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the perspective structural schematic diagram of example 1 (first arc plate and second arc plate are in the state of butt joint);

[0019] Figure 2 It is the top view orthographic projection schematic diagram of Figure 1 (the dotted line is guide groove);

[0020] Figure 3 It is the top view orthographic projection schematic diagram of Figure 2 (the dotted line is guide groove);

[0021] Figure 4 It is the perspective structural schematic diagram of example 1 (first arc plate and second arc plate are in the state of separation);

[0022] Figure 5 It is the perspective structural schematic diagram of another angle of example 1 (first arc plate and second arc plate are in the state of separation);

[0023] Figure 6 It is the sectional view schematic diagram of first arc plate in example 1;

[0024] Figure 7 It is the cross section schematic diagram of guide groove in example 1 (wherein A is steel wire);

[0025] Figure 8 It is the structural schematic diagram of handle after setting anti-skid line and anti-skid sleeve in example 1;

[0026] Figure 9 is a schematic view of the cross section of the guide slot in Example 2;

[0027] Figure 10 is a schematic view of the dismounting structure in Example 3. DETAILED DESCRIPTION

[0028] The utility model will be described in further detail below in combination with the drawings of the embodiments.

[0029] Figures 1 to 7 is a schematic view of Example 1, and the wire guide for fracture reduction and fixation in Example 1 comprises a first arc-shaped plate 1 and a second arc-shaped plate 2.

[0030] Reference Figures 1 to 5 As shown, the first arc-shaped plate 1 and the second arc-shaped plate 2 can be mutually butted or mutually separated, the inner arc walls of the first arc-shaped plate 1 and the second arc-shaped plate 2 are each provided with a guide slot 3 that is mutually adapted for guiding the wire A to pass through, the outer arc wall of the first arc-shaped plate 1 is provided with a wire inlet hole 1a that communicates with the guide slot 3 for the wire A to pass in, and the outer arc wall of the second arc-shaped plate 2 is also provided with a wire outlet hole 2a that communicates with the guide slot 3 for the wire A to pass out, in the state that the first arc-shaped plate 1 and the second arc-shaped plate 2 are mutually butted, the first arc-shaped plate 1 and the second arc-shaped plate 2 mutually enclose to form a ring-shaped body that can cover the fracture end inside, and the guide slots 3 provided on the inner arc walls of the first arc-shaped plate 1 and the second arc-shaped plate 2 can mutually connect and form a helix shape along the length direction that has at least two turns, and the outer side walls of the first arc-shaped plate 1 and the second arc-shaped plate 2 are each further formed with a handle 4 that faces the same side to facilitate holding.

[0031] Among them, in order to better connect and transition between the guide slot 3 and the wire inlet hole 1a and the wire outlet hole 2a, so that the wire A can better enter the guide slot 3 from the wire inlet hole 1a and then pass out from the wire outlet hole 2a, in Example 1, referring to Figure 2 and Figure 3 As shown, in the state that the guide slots 3 on the first arc-shaped plate 1 and the second arc-shaped plate 2 mutually connect to form a helix shape, the wire inlet hole 1a communicates with the starting point of the guide slot 3 and penetrates and extends in the tangential direction of the starting point, and the wire outlet hole 2a communicates with the ending point of the guide slot 3 and penetrates and extends in the tangential direction of the ending point.

[0032] Secondly, in order to facilitate operation and make the inlet end and the outlet end of the wire A both face the operator, referring to Figure 3 and Figure 4As shown in the embodiment 1, the outer arc wall of the first arc-shaped plate 1 is provided with a first guide nozzle 1b, the first guide nozzle 1b is provided with a wire inlet channel 1c which is communicated with the wire inlet hole 1a, the outer arc wall of the second arc-shaped plate 2 is provided with a second guide nozzle 2b, the second guide nozzle 2b is provided with a wire outlet channel 2c which is communicated with the wire outlet hole 2a, and the inlet end of the wire inlet channel 1c and the outlet end of the wire outlet channel 2c are both directed to the side where the handle 4 is provided.

[0033] In addition, in order to make the steel wire A better in the guide groove, prevent the steel wire from running out of the guide groove and affect the threading, with reference to Figure 7 As shown in the embodiment 1, the cross section of the guide groove 3 is circular, the width c of the opening of the guide groove 3 is greater than the outer diameter size b of the steel wire A and less than the inner diameter size a of the guide groove 3.

[0034] In addition, in order to make the steel wire A better in the guide groove, prevent the steel wire from running out of the guide groove and affect the threading, with reference to Figures 1 to 4 As shown in the embodiment 1, the outer arc wall of the first arc-shaped plate 1 is provided with a first guide nozzle 1b, the first guide nozzle 1b is provided with a wire inlet channel 1c which is communicated with the wire inlet hole 1a, the outer arc wall of the second arc-shaped plate 2 is provided with a second guide nozzle 2b, the second guide nozzle 2b is provided with a wire outlet channel 2c which is communicated with the wire outlet hole 2a, and the inlet end of the wire inlet channel 1c and the outlet end of the wire outlet channel 2c are both directed to the side where the handle 4 is provided.

[0035] In the embodiment 1, the dismounting structure 5 mainly includes a strip-shaped insertion block 5a which is formed on the first abutting surface 1d along the length direction and a strip-shaped insertion slot 5b which is formed on the second abutting surface 2d along the length direction, and the first arc-shaped plate 1 and the second arc-shaped plate 2 can be detachably connected together through the mutual insertion of the strip-shaped insertion block 5a and the strip-shaped insertion slot 5b.

[0036] In the embodiment 1, in order to prevent the sliding phenomenon when separating the first arc-shaped plate 1 and the second arc-shaped plate 2, with reference to Figure 8 As shown in the embodiment 1, the outer arc wall of the first arc-shaped plate 1 is provided with a first guide nozzle 1b, the first guide nozzle 1b is provided with a wire inlet channel 1c which is communicated with the wire inlet hole 1a, the outer arc wall of the second arc-shaped plate 2 is provided with a second guide nozzle 2b, the second guide nozzle 2b is provided with a wire outlet channel 2c which is communicated with the wire outlet hole 2a, and the inlet end of the wire inlet channel 1c and the outlet end of the wire outlet channel 2c are both directed to the side where the handle 4 is provided.

[0037] Embodiment 2

[0038] Figure 9 The cross section of the guide groove in the embodiment 2 is shown in the figure, and other structures in the embodiment 2 are the same as those in the embodiment 1, and the difference is the cross section of the guide groove. In order to make the steel wire A better in the guide groove 3, prevent the steel wire A from running out of the guide groove 3 and affect the threading, the cross section of the guide groove 3 in the embodiment 2 is strip-shaped, the depth d of the guide groove 3 is greater than the width e of the guide groove 3, and the bottom of the guide groove 3 is further formed with an arc surface 31 which is adapted to the outer side wall of the steel wire A.

[0039] Embodiment 3

[0040] Figure 10 As a structural schematic diagram of the detachable structure 5 in Embodiment 3, other structures in Embodiment 3 are the same as those in Embodiment 1, and the only difference is the detachable structure 5. In order to optimize the overall structure of the detachable structure 5 and make the first arc-shaped plate 1 and the second arc-shaped plate 2 better dock and detach, the detachable structure 5 in Embodiment 3 includes a buckle 5c provided on the first arc-shaped plate 1 and extending towards the second arc-shaped plate 2, and a clamping groove 5d provided on the second arc-shaped plate 2 and adapted to the buckle 5c. The first arc-shaped plate 1 and the second arc-shaped plate 2 are connected together by the mutual clamping of the buckle 5c and the clamping groove 5d.

[0041] It is also necessary to additionally explain here that the first arc-shaped plate 1 and the second arc-shaped plate 2 are provided in the above three embodiments and can wrap the fracture end after being mutually closed. In order to make the first arc-shaped plate 1 and the second arc-shaped plate 2 better enter the human body tissue, the width size of the first arc-shaped plate 1 and the second arc-shaped plate 2 is usually controlled within 1.5-2.5 centimeters, and the specific steel wire threading principle is as follows: guide grooves 3 adapted to each other for guiding the threading of the steel wire A are provided on the inner arc walls of the first arc-shaped plate 1 and the second arc-shaped plate 2, and wire inlet holes 1a and wire outlet holes 2a for communicating the guide grooves 3 are also provided on the first arc-shaped plate 1 and the second arc-shaped plate 2. In the state that the first arc-shaped plate 1 and the second arc-shaped plate 2 are closed and docked, the guide grooves 3 on the inner arc walls of the first arc-shaped plate 1 and the second arc-shaped plate 2 can be mutually connected and form a spiral shape with at least two turns. When it is necessary to thread the steel wire A to the fracture end of the patient, the first arc-shaped plate 1 and the second arc-shaped plate 2 are first closed to wrap the fracture end, and then the steel wire A is threaded from the wire inlet hole 1a. The steel wire A will be spirally wound around the outer circumferential side of the fracture end under the guidance of the guide grooves 3 and threaded out from the wire outlet hole 2a. Finally, the first arc-shaped plate 1 and the second arc-shaped plate 2 are separated from each other by holding the handles provided on the first arc-shaped plate 1 and the second arc-shaped plate 2, thereby completing the threading process of the steel wire A. The drawbacks that only one turn of the steel wire A can be threaded at a time in the prior art are solved, and we can also control the winding turns of the steel wire A by changing the number of turns of the guide grooves 3, thereby enhancing the stability and firmness of the fracture end binding and greatly improving the surgical efficiency and quality.

[0042] It also needs to be explained that in the description of the embodiment, the terms "front, back", "left, right", "inner, outer", "upper, lower" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. The terms "mounting", "connection", "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

Claims

1. A wire guide for fracture reduction and fixation, characterized in that: The utility model relates to a kind of arc-shaped plates for fracture fixation, including mutually buttable or mutually detachable first arc-shaped plate (1) and second arc-shaped plate (2), the inner arc wall of the first arc-shaped plate (1) and second arc-shaped plate (2) is mutually adapted to be equipped with guide slot (3) for guiding steel wire (A) to be equipped with, the outer arc wall of the first arc-shaped plate (1) is equipped with wire inlet hole (1a) that is communicated with the guide slot (3) for steel wire (A) to be threaded, the outer arc wall of the second arc-shaped plate (2) is also equipped with wire outlet hole (2a) that is communicated with the guide slot (3) for steel wire (A) to be threaded out, in the mutually buttable state of the first arc-shaped plate (1) and second arc-shaped plate (2), the first arc-shaped plate (1) and second arc-shaped plate (2) mutually enclose and form annular body that can be wrapped in fracture end, and the guide slot (3) on the inner arc wall of the first arc-shaped plate (1) and second arc-shaped plate (2) can be mutually linked and form spiral at least with two circles along length direction, the outer side wall of the first arc-shaped plate (1) and second arc-shaped plate (2) is also formed with handle (4) towards same side to facilitate holding respectively.

2. A wire-threading guide for fracture reduction and fixation according to claim 1, characterized in that: The guide slot (3) on the first arc-shaped plate (1) and second arc-shaped plate (2) is mutually linked to form spiral, the wire inlet hole (1a) is communicated with the starting point of the guide slot (3) and penetrates and extends towards the tangential direction of the starting point, and the wire outlet hole (2a) is communicated with the terminal point of the guide slot (3) and penetrates and extends towards the tangential direction of the terminal point.

3. The wire-threading guide for fracture reduction and fixation according to claim 1, wherein: The outer arc wall of the first arc-shaped plate (1) is equipped with first guide nozzle (1b), the first guide nozzle (1b) is equipped with wire inlet channel (1c) that is communicated with the wire inlet hole (1a), the outer arc wall of the second arc-shaped plate (2) is equipped with second guide nozzle (2b), the second guide nozzle (2b) is equipped with wire outlet channel (2c) that is communicated with the wire outlet hole (2a), and the inlet end of the wire inlet channel (1c) and the outlet end of the wire outlet channel (2c) are all towards the side where handle (4) is equipped.

4. The wire-threading guide for fracture reduction and fixation according to claim 1, wherein: The cross section of the guide slot (3) is circular, and the width (c) of the opening of the guide slot (3) is greater than the outer diameter (b) of the steel wire (A) and less than the inner diameter (a) of the guide slot (3).

5. The wire-threading guide for fracture reduction and fixation according to claim 1, wherein: The cross section of the guide slot (3) is long strip-shaped, the depth (d) of the guide slot (3) is greater than the width (e) of the guide slot (3), and the bottom of the guide slot (3) is further formed with an arc surface (31) for adapting the outer side wall of the steel wire (A).

6. A wire guide for fracture reduction and fixation according to any one of claims 1 to 5, wherein: The first arc-shaped plate (1) is formed with a first abutting surface (1d) for abutting the second arc-shaped plate (2), the second arc-shaped plate (2) is formed with a second abutting surface (2d) for abutting the first arc-shaped plate (1), and a detachable structure (5) is further arranged between the first arc-shaped plate (1) and the second arc-shaped plate (2) for mutually abutting or mutually detaching the first arc-shaped plate (1) and the second arc-shaped plate (2).

7. A wire-threading guide for fracture reduction and fixation according to claim 6, characterized in that: The detachable structure (5) comprises a strip-shaped plug (5a) formed on the first abutting surface (1d) in the length direction and a strip-shaped slot (5b) formed on the second abutting surface (2d) in the length direction, and the first arc-shaped plate (1) and the second arc-shaped plate (2) are detachably connected together through mutual plugging of the strip-shaped plug (5a) and the strip-shaped slot (5b).

8. The wire-threading guide for fracture reduction and fixation according to claim 6, wherein: The detachable structure (5) comprises a buckle (5c) arranged on the first arc-shaped plate (1) and extending towards the second arc-shaped plate (2), and a clamping groove (5d) arranged on the second arc-shaped plate (2) and adapted to the buckle (5c), and the first arc-shaped plate (1) and the second arc-shaped plate (2) are detachably connected together through mutual clamping of the buckle (5c) and the clamping groove (5d).

9. The wire-threading guide for fracture reduction and fixation according to claim 1, wherein: The handle (4) is provided with anti-skid lines (4a) for increasing friction, and the handle (4) is sleeved with an anti-skid sleeve (4b) for increasing friction.

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