CN114081553A - Nerve traction external frame - Google Patents

Abstract

The invention discloses a nerve traction outer frame, which belongs to the technical field of medical instruments and comprises a threaded rod, two traction parts and two supporting parts, wherein the two supporting parts are symmetrically arranged, the threaded rod is horizontally arranged on the two supporting parts, the threaded rod is in sliding fit with the two supporting parts, the two traction parts are symmetrically and horizontally arranged on the threaded rod, and the two supporting parts are arranged on the inner sides of the two traction parts. The invention leads the near end and the far end of the nerve to extend the broken nerve, is convenient for the follow-up nerve suture and ensures that the near end and the far end of the nerve are healed.

Description

Nerve traction external frame

Technical Field

The invention relates to the technical field of medical instruments, in particular to a nerve traction external frame.

Background

Neurosurgery is a branch of surgery, which is based on surgery as a main treatment means in the surgery, and a unique neurosurgery research method is applied to research human nervous systems, such as brain, spinal cord and peripheral nervous systems, and related auxiliary mechanisms, nerve bundle rupture injury is a common injury in the neurosurgery field, anastomotic repair of a nerve broken end is required, a section of defect usually occurs after stump resection and new treatment in the anastomosis, and at the moment, if anastomosis is performed in a 'end-to-end' manner, the excessive tension of an anastomotic orifice is not favorable for nerve regeneration and repair after the surgery, and the potential risk of anastomotic orifice separation due to the excessive tension exists, so that the nerve traction is adopted for extension and then direct suturing is performed.

For example, the retractor comprises a retracting frame, wherein a driving gear and a driven gear are rotatably arranged on the retracting frame, most retractors in the prior art are of a hinged structure, a doctor holds two pliers of the retractor by hands during retracting, the force is difficult to hold, the retracting structure is a V-shaped structure, and the provided surgical field is small, when the retractor is used, the head of a handle can be inserted into a connecting groove, the rotating shaft of the driving gear can be driven to rotate together by rotating the handle, the driving gear can drive the driven gear to rotate when the driving gear rotates, the rotating directions of the driving gear and the driven gear are opposite, so that the driving gear plate and the driven gear plate are close to each other or far away from each other, the retracting plate is driven to open or close, and the retracting plate is detachably connected with a sliding frame, is convenient to take off and clean, and is convenient for change the pulling plate of different types. The retractor cannot be used to pull nerves.

The traction nerve extender with the publication number of CN2307540Y can not simultaneously pull the far end and the near end of the nerve by pulling the nerve through the ratchet structure, and the device has a large volume and a complicated structure, cannot be used for pulling the nerve in vivo, and is not convenient for practical use.

The nerve axon drawing and growing device with the publication number of CN104178422B comprises a culture and drawing control system and a mechanical device, can flexibly control the length, the direction and the speed of axon growth, can culture a nerve tissue with proper length and regular growth in a short time according to the needs of a patient, and is used for repairing nerve injury. However, the device can only be used for the culture of isolated nerve tissue.

Therefore, the existing nerve traction device has large volume and complex structure, can only be used for traction on the isolated nerve and cannot be used for traction growth of the internal nerve.

Disclosure of Invention

The embodiment of the invention provides a nerve traction outer frame, which aims to solve the problems in the prior art.

The embodiment of the invention adopts the following technical scheme: the utility model provides a nerve tractive outrigger, includes threaded rod, two tractive parts and two supporting component, two the supporting component is the symmetry setting, the threaded rod is the level and sets up on two supporting component, threaded rod and two supporting component sliding fit, two tractive part symmetry level sets up on the threaded rod, and two supporting component settings are inboard at two tractive parts.

Further, the pulling component is connected with a pulling rope.

Furthermore, a nerve conduit is sleeved on the traction rope.

Further, two the supporting component all includes locking connecting piece and spicule, two locking connecting piece symmetry sets up on the threaded rod, and locking connecting piece includes horizontal through-hole and vertical joint portion, locking connecting piece passes through horizontal through-hole and threaded rod threaded connection, locking connecting piece passes through vertical joint portion and spicule joint.

Furthermore, every the traction part all includes preceding locking knob, slip traction mechanism and back locking knob, slip traction mechanism and preceding locking knob set gradually on the threaded rod towards the tip by the threaded rod middle part, preceding locking knob and back locking knob rotate the butt on slip traction mechanism, slip traction mechanism slides the cover and establishes on the threaded rod, preceding locking knob with back locking knob and threaded rod threaded connection.

Furthermore, each sliding traction mechanism comprises a sliding block, a traction hook, an outer barrel and an inner barrel, wherein the traction hook is positioned at the bottom of the sliding block, one end of the inner barrel is abutted against the sliding block, the other end of the inner barrel is sleeved in the outer barrel, the outer barrel is in sliding fit with the inner barrel, the rear locking knob is abutted against the outer barrel, the front locking knob is abutted against the sliding block, a spring abutted and connected with the inner barrel is arranged in the outer barrel, and the traction hook is connected with a traction rope.

Furthermore, an observation window is arranged on the outer barrel, a graduated scale is arranged on the inner barrel, and the observation window corresponds to the graduated scale in position.

The embodiment of the invention adopts at least one technical scheme which can achieve the following beneficial effects:

firstly, when the nerve proximal end and the nerve distal end are to be pulled, the rear locking knob rotates on the threaded rod, the rear locking knob pushes the sliding block to move outwards on the threaded rod, after the position of the sliding block is fixed, the front locking knob is rotated to abut against the sliding block, the sliding block is fixed on the threaded rod through the front locking knob and the rear locking knob, and the sliding block moves to drive the pulling hook to move so as to drive the pulling rope to pull the nerve proximal end and the nerve distal end, so that the broken nerve is prolonged, and the subsequent nerve is convenient to suture.

Secondly, because the nerve traction growth needs a long period of time (several months), the invention is arranged on the bone through the spicules of the supporting component, so that the limbs can move during the nerve traction growth process.

Thirdly, the locking connecting piece of the supporting part of the invention is convenient for adjusting the transverse distance between spicules and the longitudinal height of the threaded rod, flexibly controls the traction distance and angle and is convenient for installation and disassembly.

The utility model discloses a take the traction rope, including the inner tube, the outer tube is equipped with the spring that supports to be connected with the inner tube and preceding locking knob and inner tube butt in, its effect lies in after the tractive position is confirmed roughly, because the spring can drive the relative urceolus of inner tube and outwards remove, thereby promote the sliding block outwards to carry out slight movement on the threaded rod, consequently, only need to rotate preceding locking knob, can finely tune the position of sliding block, make the traction rope be in the state of tensioning all the time, thereby effectively tractive to nerve, if discover that the traction rope is lax, can adjust through the rotation of preceding locking knob.

And fifthly, the sliding traction mechanism is sleeved on the threaded rod in a sliding manner, so that fine adjustment of the traction position is facilitated, and the angle of the traction hook can be adjusted conveniently by rotating the sliding block, so that a proper nerve traction angle can be obtained.

Sixthly, the nerve conduit has the functions of mainly preventing scar adhesion in the nerve traction growth process, has the guiding function and enables nerves to extend and grow according to the direction of the nerve conduit.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a schematic perspective view of a tension member of the present invention;

FIG. 4 is an exploded perspective view of the tension member of the present invention;

FIG. 5 is a partial perspective view of the present invention;

reference numerals:

the device comprises a threadedrod 1, atraction component 2, afront locking knob 20, asliding block 21, atraction hook 22, anouter cylinder 23, aninner cylinder 24, arear locking knob 25, aspring 26, atraction rope 27, anerve conduit 28, anobservation window 29, a graduatedscale 291, a supportingcomponent 3, alocking connecting piece 31, aspicule 32, a bone 4, a nerveproximal end 5, a nerve distal end 6, an incision 7 andskin 8.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 5, an embodiment of the present invention provides a nerve traction exoskeleton, which includes a threadedrod 1, twotraction members 2, and twosupport members 3, where the twosupport members 3 are symmetrically arranged, the threadedrod 1 is horizontally arranged on the twosupport members 3, the threadedrod 1 is in sliding fit with the twosupport members 3, the twotraction members 2 are symmetrically and horizontally arranged on the threadedrod 1, and the twosupport members 3 are arranged inside the twotraction members 2. One end of thetraction rope 27 is connected with thetraction component 2, and the other end of thetraction rope 27 is connected with the nerve. Thetraction rope 27 is sleeved with a nerve conduit, specifically, a nerve conduit is arranged at a position close to the nerve, and the nerve is placed in thenerve conduit 28. Thenerve conduit 28 is mainly used for preventing scar adhesion, and then has a guiding function to enable nerves to grow in an extending mode according to the direction of thenerve conduit 28.

Specifically, two supportingcomponent 3 all include locking connectingpiece 31 andspicule 32, and twolocking connecting piece 31 symmetries set up on threadedrod 1, and locking connectingpiece 31 includes horizontal through-hole and vertical joint portion, locking connectingpiece 31 is through horizontal through-hole and 1 threaded connection of threaded rod, locking connectingpiece 31 is through vertical joint portion andspicule 32 joint. The utility model has the advantages of be convenient for adjust the vertical height of the transverse distance between the spicule and threaded rod, nimble control tractive distance and angle, be convenient for install and dismantle, the spicule setting of support component is on the bone, in the middle of the neural traction growth's of being convenient for process, limbs also can move about, improves patient's travelling comfort.

Simultaneously to tractionpart 2 further improvement,traction part 2 all includes precedinglocking knob 20, slip traction mechanism andback locking knob 25, slip traction mechanism and precedinglocking knob 20 set gradually on threadedrod 1 towards the tip by threadedrod 1 middle part, precedinglocking knob 20 andback locking knob 25 rotate the butt on slip traction mechanism, slip traction mechanism slides the cover and establishes on threadedrod 1, precedinglocking knob 20 withback locking knob 25 and threaded rod (1) threaded connection.

Each sliding traction mechanism is configured to comprise asliding block 21, atraction hook 22, anouter cylinder 23 and aninner cylinder 24, wherein thetraction hook 22 is located at the bottom of thesliding block 21, one end of theinner cylinder 24 is abutted to thesliding block 21, the other end of theinner cylinder 24 is sleeved in theouter cylinder 23, theouter cylinder 23 is in sliding fit with theinner cylinder 24, arear locking knob 25 is abutted to theouter cylinder 23, afront locking knob 20 is abutted to the slidingblock 21, aspring 26 which is abutted to theinner cylinder 24 is arranged in theouter cylinder 23, and thetraction hook 22 is connected with atraction rope 27.

Be equipped with in theurceolus 23 and lean on thespring 26 of being connected with theinner tube 24, its effect lies in when the tractive position roughly confirms after, because the spring can drive therelative urceolus 23 ofinner tube 24 and outwards remove to promote slidingblock 21 and outwards carry out slight movement on threadedrod 1, consequently, only need to rotate precedinglocking knob 20, can finely tune the position of slidingblock 21, maketractive rope 27 be in the state of tensioning all the time, thereby carry out effective tractive to the nerve. If thepull cord 27 is found slack, it can be adjusted by rotating thefront locking knob 20.

Theouter cylinder 23 is further provided with anobservation window 29, and theinner cylinder 24 is provided with a graduatedscale 291, wherein the observation window corresponds to the graduated scale in position. The scales can be seen through theobservation window 29, so that the traction position can be conveniently and accurately determined, and the change of the traction position can be observed, thereby judging the traction growth length condition of the nerve.

The working principle of the invention is as follows: when the invention is used, an incision 7 is cut on theskin 8 of a nerve fracture part of a patient, the lower ends of twobone needles 32 are respectively placed in bones 4, one end of atraction rope 27 is connected with atraction hook 22, the other end of the traction rope passes through anerve conduit 28 and then is connected with nerves, the nerves are placed in thenerve conduit 28, the position of a threadedrod 1 is adjusted through twolocking connecting pieces 31, the threadedrod 1 is fixed on thebone needles 32 through the twolocking connecting pieces 31, after the position is determined, arear locking knob 25 rotates on the threadedrod 1, so that asliding block 21 moves outwards on the threadedrod 1, the slidingblock 21 moves to drive the position of thetraction hook 22 to move, thereby driving thetraction rope 27 to draw the nerveproximal end 5 and the nerve distal end 6 so as to extend the broken nerves, the nerveproximal end 5 and the nerve distal end 6 are convenient to be subsequently sutured, after a proper traction position is determined, afront locking knob 20 is rotated, thefront locking knob 20 is abutted against thesliding block 21, the slidingblock 21 is fixed to the threadedrod 1 by thefront locking knob 20 and therear locking knob 25, and then the incision 7 is sewn.

The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (9)

1. The utility model provides a nerve traction outrigger, its characterized in that includes threaded rod (1), two tractive parts (2) and two supporting component (3), two supporting component (3) are the symmetry and set up, threaded rod (1) is the level and sets up on two supporting component (3), threaded rod (1) and two supporting component (3) sliding fit, two tractive part (2) symmetry level sets up on threaded rod (1), and two supporting component (3) set up at two tractive parts (2) inboards.

2. A nerve traction exoskeleton as claimed in claim 1 wherein: the pulling component (2) is connected with a pulling rope (27).

3. A nerve traction exoskeleton as claimed in claim 2 wherein: the traction rope (27) is sleeved with a nerve conduit (28).

4. A nerve traction exoskeleton as claimed in any one of claims 1 to 3 wherein: two support component (3) all include locking connecting piece (31) and spicule (32), two locking connecting piece (31) symmetry sets up on threaded rod (1), and locking connecting piece (31) include horizontal through-hole and vertical joint portion, locking connecting piece (31) are through horizontal through-hole and threaded rod (1) threaded connection, locking connecting piece (31) are through vertical joint portion and spicule (32) joint.

5. A nerve traction exoskeleton as claimed in any one of claims 1 to 3 wherein: every tractive part (2) all include preceding locking knob (20), slip traction mechanism and back locking knob (25), slip traction mechanism and preceding locking knob (20) set gradually on threaded rod (1) towards the tip by threaded rod (1) middle part, preceding locking knob (20) and back locking knob (25) rotate the butt on slip traction mechanism, slip traction mechanism slides the cover and establishes on threaded rod (1), preceding locking knob (20) with back locking knob (25) and threaded rod (1) threaded connection.

6. A nerve traction exoskeleton as claimed in claim 4 wherein: every tractive part (2) all include preceding locking knob (20), slip traction mechanism and back locking knob (25), slip traction mechanism and preceding locking knob (20) set gradually on threaded rod (1) towards the tip by threaded rod (1) middle part, preceding locking knob (20) and back locking knob (25) rotate the butt on slip traction mechanism, slip traction mechanism slides the cover and establishes on threaded rod (1), preceding locking knob (20) with back locking knob (25) and threaded rod (1) threaded connection.

7. A nerve traction exoskeleton as claimed in claim 5 wherein: each sliding traction mechanism comprises a sliding block (21), a traction hook (22), an outer barrel (23) and an inner barrel (24), the traction hook (22) is located at the bottom of the sliding block (21), one end of the inner barrel (24) is abutted to the sliding block (21), the other end of the inner barrel (24) is sleeved in the outer barrel (23), the outer barrel (23) is in sliding fit with the inner barrel (24), a rear locking knob (25) is abutted to the outer barrel (23), a front locking knob (20) is abutted to the sliding block (21), a spring (26) which is abutted to the inner barrel (24) is arranged in the outer barrel (23), and the traction hook (22) is connected with a traction rope (27).

8. A nerve traction exoskeleton as claimed in claim 6 wherein: each sliding traction mechanism comprises a sliding block (21), a traction hook (22), an outer barrel (23) and an inner barrel (24), the traction hook (22) is located at the bottom of the sliding block (21), one end of the inner barrel (24) is abutted to the sliding block (21), the other end of the inner barrel (24) is sleeved in the outer barrel (23), the outer barrel (23) is in sliding fit with the inner barrel (24), a rear locking knob (25) is abutted to the outer barrel (23), a front locking knob (20) is abutted to the sliding block (21), a spring (26) which is abutted to the inner barrel (24) is arranged in the outer barrel (23), and the traction hook (22) is connected with a traction rope (27).

9. A nerve traction exoskeleton as claimed in any one of claims 7 to 8 wherein: an observation window (29) is arranged on the outer cylinder (23), a graduated scale (291) is arranged on the inner cylinder (24), and the observation window (29) corresponds to the graduated scale (291) in position.

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