阅读说明：本技术 一种骨科可控抓钳 (Controllable grasping forceps for orthopedics department ) 是由 马千理 董书锦 陶银炯 柴宏亮 于 2019-09-24 设计创作，主要内容包括：本发明公开了一种骨科可控抓钳,包括固定手柄,与固定手柄铰接的操作手柄,分别与固定手柄和操作手柄连接的外鞘管,设置在外鞘管的前端的嵌头,设置在外鞘管内、且连接在操作手柄与嵌头之间、用于操作操作手柄并带动嵌头动作的嵌头调整钢丝绳,以及设置在外鞘管上、用于调整嵌头的角度的嵌头调节器。通过上述方案,本发明具有结构简单、角度调整可靠、准确可靠等优点,在髓核组织抓取技术领域具有很高的实用价值和推广价值。(The invention discloses controllable grasping forceps for orthopedics department, which comprise a fixed handle, an operating handle hinged with the fixed handle, an outer sheath tube respectively connected with the fixed handle and the operating handle, an embedded head arranged at the front end of the outer sheath tube, an embedded head adjusting steel wire rope arranged in the outer sheath tube, connected between the operating handle and the embedded head and used for operating the operating handle and driving the embedded head to act, and an embedded head adjuster arranged on the outer sheath tube and used for adjusting the angle of the embedded head. Through the scheme, the invention has the advantages of simple structure, reliable angle adjustment, accuracy, reliability and the like, and has very high practical value and popularization value in the technical field of nucleus pulposus tissue grabbing.)

1. The controllable grasping forceps for orthopedics department comprises a fixed handle (1), an operating handle (2) hinged with the fixed handle (1), and is characterized by further comprising an outer sheath tube (5) respectively connected with the fixed handle (1) and the operating handle (2), an embedded head (6) arranged at the front end of the outer sheath tube (5), an embedded head adjusting steel wire rope (7) arranged in the outer sheath tube (5), connected between the operating handle (2) and the embedded head (6) and used for operating the operating handle (2) and driving the embedded head (6) to act, and an embedded head adjuster (3) arranged on the outer sheath tube (5) and used for adjusting the angle of the embedded head (6);

the embedded head regulator (3) comprises a regulating box (30) arranged on the sheath tube (5), a regulating knob (31) connected with the regulating box (30), a steel wire connection regulating block (33) arranged in the regulating box (30) and connected with the regulating knob (31), a regulating shaft (34) arranged in the regulating knob (31) and connected with the steel wire connection regulating block (33), and a strip-shaped embedded head regulating steel wire rope through-penetrating hole (332) which is arranged in the center of the steel wire connection regulating block (33) along the direction of the sheath tube (5) and is used for penetrating through the embedded head regulating steel wire rope (7);

two ends of the steel wire connection adjusting block (33) are respectively connected with a first embedded head angle adjusting steel wire rope (81) and a second embedded head angle adjusting steel wire rope (82); the end part of the first embedded head angle adjusting steel wire rope (81) is fixedly connected with one side end of the steel wire connection adjusting block (33) and sleeved on the embedded head (6); the end part of the second embedded head angle adjusting steel wire rope (82) is fixedly connected with the other side end of the steel wire connection adjusting block (33) and sleeved on the embedded head (6);

the embedded head (6) comprises a turning joint (61) of which the rear end is sleeved at the front end of the outer sheath tube (5) and the front end is sleeved and connected with a first embedded head angle adjusting steel wire rope (81) and a second embedded head angle adjusting steel wire rope (82), a fixed embedded head clamp (62) arranged at the front end of the turning joint (61), and a movable embedded head clamp (63) hinged with the fixed embedded head clamp (62) and connected with the embedded head adjusting steel wire rope (7); the embedded head adjusting steel wire rope (7) penetrates through the turning joint (61).

2. An orthopedic controllable grasper as claimed in claim 1, further comprising a luer connector (4) provided on the sheath tube (5); an outer sheath tube connecting hole (41) is formed in the luer connector (4) along the radial direction of the outer sheath tube (5), and a luer through hole (40) connected with the outer sheath tube connecting hole (41) is formed in the luer connector (4) and perpendicular to the radial direction of the outer sheath tube (5);

An outer sheath center hole (50) through which an embedded head adjusting steel wire rope (7), a first embedded head angle adjusting steel wire rope (81) and a second embedded head angle adjusting steel wire rope (82) penetrate is formed in the outer sheath tube (5); the luer through hole (40) is communicated with the sheath central hole (50).

3. the controllable orthopedics grasper of claim 1, wherein the wire connection adjustment block (33) includes an angle adjustment rotation block (331) fixedly connected to the ends of the first scarf angle adjustment wire rope (81) and the second scarf angle adjustment wire rope (82), an adjustment connection shaft (333) provided at the top of the angle adjustment rotation block (331) and connected to the adjustment shaft (34), and a rotation post (334) provided at the bottom of the angle adjustment rotation block (331) and penetrating the adjustment box (30); the embedded head adjusting steel wire rope is arranged in the center of the angle adjusting rotating block (331) through the through hole (332).

4. The controllable grasper of claim 3, wherein the adjusting knob (31) has an adjusting knob center hole (311) formed therein along a radial direction perpendicular to the outer sheath (5), and a spring (36) is disposed in the adjusting knob center hole (311); the spring (36) is sleeved on the outer edge of the adjusting shaft (34), and a retainer ring sheet (35) is arranged at the top of the spring (36); the retainer ring piece (35) is arranged on the top of the inner wall of the central hole (311) of the adjusting knob.

5. The controllable grasper of claim 1, wherein the bottom of the adjusting knob (31) has an anti-rotation pin (312), and the top of the adjusting box (30) has several anti-rotation holes (301) matching with the anti-rotation pin (312).

6. The controllable orthopedic grasper of claim 1, wherein the adjustment box (30) is provided with a plurality of rollers (32) for rolling and supporting the first and second angle-adjusting wire ropes (81, 82).

7. The controllable orthopedics grasper as claimed in claim 1, wherein the direction-changing joint (61) comprises a steel wire rope passing direction-changing base (611) and a fixed embedded clamp connection post (614) which are sequentially arranged from back to front, a plurality of direction-changing joint posts (612) arranged between the steel wire rope passing direction-changing base (611) and the fixed embedded clamp connection post (614), and a spring tube (613) which is sequentially arranged from back to front through the steel wire rope passing direction-changing base (611), the direction-changing joint posts (612) and the fixed embedded clamp connection post (614);

The embedded head adjusting steel wire rope (7) penetrates through the spring pipe (613); the first embedded head angle adjusting steel wire rope (81) and the second embedded head angle adjusting steel wire rope (82) penetrate through the steel wire ropes and penetrate through the turning base (611), the turning section column (612) and the fixed embedded head clamp connecting column (614) to be arranged;

The fixed embedded head clamp (62) is arranged at the front end of the fixed embedded head clamp connecting column (614).

8. the controllable grasper of claim 7, wherein any of the direction-changing stud (612) includes a circular shape (6121), a central hole (6122) provided in the center of the circular shape (6121) for the spring tube (613) to pass through, four wire rope through holes (6123) provided in the circular shape (6121) in the radial direction of the spring tube (613), two arc-shaped protrusions (6124) provided in the front end edge of the circular shape (6121) and disposed at opposite positions, and an arc-shaped groove (6125) provided in the rear end edge of the circular shape (6121) and matched with the arc-shaped protrusions (6124).

9. the controllable grasper of claim 1, wherein a hinge pin (64) is provided between the fixed and movable collet jaws (62, 63), and a wire rope connection hole (631) connected to the collet adjustment wire rope (7) is provided at the rear end of the movable collet jaw (63); the relative inner sides of the fixed embedded head clamp (62) and the movable embedded head clamp (63) are provided with a plurality of clamping teeth (65).

10. the controllable orthopedics grasper of claim 8, wherein the fixed collet chuck connection post (614) is provided with four connection post slots (6141), the center of the fixed collet chuck connection post (614) is provided with a connection post center hole (6142) for penetration of a collet adjustment wire rope, and the rear end of the fixed collet chuck connection post (614) is provided with a connection post arc groove (6143) matching with the arc protrusion (6124).

Technical Field

the invention relates to the technical field of nucleus pulposus tissue grabbing, in particular to an orthopedic controllable grasping forceps for grabbing protruded nucleus pulposus in an intervertebral foramen mirror operation.

background

at present, the surgical inlay in the prior art mainly comprises a straight grasping forceps, a spring forceps and the like, wherein the spring forceps are derived on the basis of the straight grasping forceps, the bendable operation limitation is large, and the bending angle is fixed; therefore, the focus tissue can be grasped only by a large-scale operation of a doctor, and even some parts can not be clamped, so that the treatment effect can not be achieved. In addition, the prior art has been temporarily lacking specialized tools for grasping nucleus pulposus tissue because the angle of the nucleus pulposus tissue grasping operation is not linear.

therefore, the orthopaedics controllable grasping forceps with simple structure, simple and convenient operation and adjustable angle is urgently needed to be provided.

Disclosure of Invention

Aiming at the problems, the invention aims to provide a controllable grasping forceps for orthopedics department, and the technical scheme adopted by the invention is as follows:

A controllable orthopedic grasping forceps comprises a fixed handle, an operating handle hinged with the fixed handle, an outer sheath tube respectively connected with the fixed handle and the operating handle, an embedded head arranged at the front end of the outer sheath tube, an embedded head adjusting steel wire rope arranged in the outer sheath tube and connected between the operating handle and the embedded head and used for operating the operating handle and driving the embedded head to move, and an embedded head adjuster arranged on the outer sheath tube and used for adjusting the angle of the embedded head;

the embedded head regulator comprises a regulating box arranged on the sheath pipe, a regulating knob connected with the regulating box, a steel wire connection regulating block arranged in the regulating box and connected with the regulating knob, a regulating shaft arranged in the regulating knob and connected with the steel wire connection regulating block, and an embedded head regulating steel wire rope through hole which is arranged in the center of the steel wire connection regulating block along the direction of the sheath pipe, is used for penetrating through the embedded head regulating steel wire rope and is in a strip shape;

two ends of the steel wire connection adjusting block are respectively connected with a first embedded head angle adjusting steel wire rope and a second embedded head angle adjusting steel wire rope; the end part of the first embedded head angle adjusting steel wire rope is fixedly connected with one side end of the steel wire connection adjusting block and sleeved on the embedded head; the end part of the second embedded head angle adjusting steel wire rope is fixedly connected with the other side end of the steel wire connection adjusting block and sleeved on the embedded head;

The embedded head comprises a turning joint, a fixed embedded head clamp and a movable embedded head clamp, wherein the rear end of the turning joint is sleeved at the front end of the outer sheath pipe, and the front end of the turning joint is sleeved with the first embedded head angle adjusting steel wire rope and the second embedded head angle adjusting steel wire rope; the embedded head adjusting steel wire rope penetrates through the turning joint.

further, the controllable grasping forceps for orthopedics department further comprises a luer connector arranged on the outer sheath tube; the luer connector is provided with an outer sheath tube connecting hole along the radial direction of the outer sheath tube, and a luer through hole connected with the outer sheath tube connecting hole is formed in the luer connector and is perpendicular to the radial direction of the outer sheath tube;

The outer sheath pipe is internally provided with an outer sheath center hole for the embedded head adjusting steel wire rope, the first embedded head angle adjusting steel wire rope and the second embedded head angle adjusting steel wire rope to penetrate through; the luer through hole is communicated with the central hole of the outer sheath.

Further, the steel wire connection adjusting block comprises an angle adjusting rotating block fixedly connected with the end portions of the first embedded angle adjusting steel wire rope and the second embedded angle adjusting steel wire rope, an adjusting connecting shaft arranged at the top of the angle adjusting rotating block and connected with the adjusting shaft, and a rotating column arranged at the bottom of the angle adjusting rotating block and penetrating through the adjusting box; the embedded head adjusting steel wire rope is arranged in the center of the angle adjusting rotating block through the through hole.

Preferably, an adjusting knob center hole is formed in the adjusting knob along the radial direction perpendicular to the outer sheath tube, and a spring is arranged in the adjusting knob center hole; the spring is sleeved on the outer edge of the adjusting shaft, and a retaining ring sheet is arranged at the top of the spring; the baffle ring piece is arranged on the top of the inner wall of the central hole of the adjusting knob.

Preferably, the bottom of the adjusting knob is provided with an anti-rotation bolt, and the top of the adjusting box is provided with a plurality of anti-rotation jacks matched with the anti-rotation bolts.

Preferably, a plurality of rollers for supporting the first embedded angle adjusting steel wire rope and the second embedded angle adjusting steel wire rope in a rolling manner are arranged in the adjusting box.

Furthermore, the turning joint comprises a steel wire rope passing turning base and a fixed embedded head clamp connecting column which are sequentially arranged from back to front, a plurality of turning joint columns arranged between the steel wire rope passing turning base and the fixed embedded head clamp connecting column, and a spring pipe which sequentially penetrates through the steel wire rope passing turning base, the turning joint columns and the fixed embedded head clamp connecting column from back to front;

The embedded head adjusting steel wire rope penetrates through the spring tube; the first embedded head angle adjusting steel wire rope and the second embedded head angle adjusting steel wire rope penetrate through the steel wire rope and penetrate through the turning base, the turning joint column and the fixed embedded head clamp connecting column;

The fixed embedded head clamp is arranged at the front end of the fixed embedded head clamp connecting column.

Furthermore, any one turning column includes a circular shape, a center hole which is arranged in the center of the circular shape and is used for a spring tube to penetrate through, four steel wire rope through holes which are arranged on the circular shape along the radial direction of the spring tube, two arc-shaped convex parts which are arranged on the edge of the front end of the circular shape and are arranged at opposite positions, and an arc-shaped groove which is arranged on the edge of the rear end of the circular shape and is matched with the arc-shaped convex parts.

Furthermore, a hinge pin is arranged between the fixed embedded head clamp and the movable embedded head clamp, and the rear end of the movable embedded head clamp is provided with a steel wire rope connecting hole connected with the embedded head adjusting steel wire rope; the relative inner sides of the fixed embedded head clamp and the movable embedded head clamp are provided with a plurality of clamping teeth.

furthermore, four connecting column slotted holes are formed in the fixed embedded head clamp connecting column, a connecting column central hole for penetrating the embedded head adjusting steel wire rope is formed in the center of the fixed embedded head clamp connecting column, and a connecting column arc-shaped groove matched with the arc-shaped convex part is formed in the rear end of the fixed embedded head clamp connecting column.

compared with the prior art, the invention has the following beneficial effects:

(1) The invention skillfully arranges the embedded head regulator and the turning joint, and realizes the angle adjustment of the turning joint by rotating the adjusting knob and driving the embedded head angle adjusting steel wire rope connected to the steel wire connection adjusting block; the steel wire connection adjusting block is rectangular, and the embedded head adjusting steel wire rope through hole is formed in the middle of the steel wire connection adjusting block, so that the angle adjustment of the embedded head is reliable, and a through channel is provided for the embedded head adjusting steel wire rope;

(2) according to the invention, the anti-rotation bolt is skillfully arranged at the bottom of the adjusting knob, and the anti-rotation jack is arranged at the top of the adjusting box, so that the embedded head can be locked after the angle of the embedded head is adjusted;

(3) The luer connector is arranged and used for discharging water in the operation process so as to reduce the internal pressure;

(4) The invention skillfully arranges the turning joint, and utilizes the embedded head angle adjusting steel wire rope to pull the turning joint column to deviate towards one side so as to realize embedded head angle adjustment;

(5) the spring pipe is ingeniously arranged in the turning joint, so that the centering effect can be achieved, and the connecting support can be provided for the turning joint column;

(6) According to the invention, the spring and the baffle ring sheet are arranged in the central hole of the adjusting knob, so that the resetting spring force is provided for the adjusting knob after being locked;

(7) The plurality of rollers are arranged in the adjusting box to provide support for pulling the embedded head angle adjusting steel wire rope, so that the embedded head angle adjusting steel wire rope is effectively prevented from dry friction with the adjusting box, and the service life of the controllable gripping tongs for orthopedics is prolonged;

(8) The invention adopts the embedded head adjusting steel wire rope to pull the movable embedded head clamp to rotate along the hinged nail, thereby ensuring the reliable clamping of the controllable grasping forceps of the orthopaedics department;

(9) the invention is provided with a center hole and steel wire rope through holes on a direction-changing knuckle column, provides a through channel for a rabbet adjusting steel wire rope, and takes a connecting line of two arc-shaped convex parts as a boundary, wherein the steel wire rope through holes on two sides are respectively used for the penetration of a first rabbet angle adjusting steel wire rope and a second rabbet angle adjusting steel wire rope; any turning joint carries out angle deviation by taking the arc convex part as a fulcrum;

In conclusion, the invention has the advantages of simple structure, reliable angle adjustment, accuracy and reliability and the like, and has high practical value and popularization value in the technical field of nucleus pulposus tissue grabbing.

drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope of protection, and it is obvious for those skilled in the art that other related drawings can be obtained according to these drawings without inventive efforts.

Fig. 1 is a schematic perspective view (i) of the present invention.

Fig. 2 is a schematic perspective view (ii) of the present invention.

FIG. 3 is a partial schematic view of the present invention.

FIG. 4 is a partial schematic view of the present invention (II).

FIG. 5 is a cross-sectional view of the insert head of the present invention.

FIG. 6 is a cross-sectional view of a jaw adjuster according to the present invention.

fig. 7 is a schematic sectional view of the insert head regulator of the present invention (ii).

fig. 8 is a schematic view of a luer connector of the present invention.

Fig. 9 is a schematic structural view of the wire connection adjustment block of the present invention.

FIG. 10 is a schematic view of the structure of the insert head of the present invention.

Fig. 11 is a schematic structural view of the conditioning case of the present invention.

Fig. 12 is a structural schematic view (one) of the direction-changing stud of the present invention.

Fig. 13 is a structural schematic view (ii) of the direction-changing stud of the present invention.

fig. 14 is a schematic structural view of the fixing clip connecting post and the fixing clip of the present invention.

Fig. 15 is a schematic structural view (i) of the steel wire rope of the present invention passing through the turning base.

Fig. 16 is a schematic structural view (ii) of the steel wire rope of the present invention passing through the turning base.

In the drawings, the names of the parts corresponding to the reference numerals are as follows:

1-fixed handle, 2-operating handle, 3-embedded head regulator, 4-Ruhr interface unit, 5-outer sheath pipe, 6-embedded head, 7-embedded head adjusting steel wire rope, 30-adjusting box, 31-adjusting knob, 32-roller, 33-steel wire connecting adjusting block, 34-adjusting shaft, 35-baffle ring sheet, 36-spring, 40-Ruhr through hole, 41-outer sheath pipe connecting hole, 50-outer sheath center hole, 61-turning joint, 62-fixed embedded head clamp, 63-movable embedded head clamp, 64-hinged nail, 65-clamping tooth, 81-first embedded head angle adjusting steel wire rope, 82-second embedded head angle adjusting steel wire rope, 301-anti-rotation jack, 311-adjusting knob center hole, 312-anti-rotation plug pin, 331-an angle adjusting rotating block, 332-an embedded head adjusting steel wire rope perforating hole, 333-an adjusting connecting shaft, 334-a rotating column, 611-a steel wire rope perforating direction changing base, 612-a direction changing section column, 613-a spring tube, 614-a fixed embedded head clamp connecting column, 631-a steel wire rope connecting hole, 6121-circular shape, 6122-a central hole, 6123-a steel wire rope perforating hole, 6124-an arc-shaped convex part, 6125-an arc-shaped groove, 6141-a connecting column slotted hole, 6142-a connecting column central hole and 6143-a connecting column arc-shaped groove.

Detailed Description

To further clarify the objects, technical solutions and advantages of the present application, the present invention will be further described with reference to the accompanying drawings and examples, and embodiments of the present invention include, but are not limited to, the following examples. 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 application.