CN202365896U - Four-limb bone traction bow with protective caps - Google Patents
Four-limb bone traction bow with protective caps Download PDFInfo
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- CN202365896U CN202365896U CN2011205057065U CN201120505706U CN202365896U CN 202365896 U CN202365896 U CN 202365896U CN 2011205057065 U CN2011205057065 U CN 2011205057065U CN 201120505706 U CN201120505706 U CN 201120505706U CN 202365896 U CN202365896 U CN 202365896U
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- head protector
- traction bow
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Abstract
A four-limb bone traction bow with protective caps belongs to the field of medical instruments and is used for bone traction in the case of bone fracture and dislocation of four-limb bones. The four-limb bone traction bow comprises a traction bow body, the two protective caps, two screws with holes, and two hexagonal nuts, wherein the traction bow body is a solid cylinder, the middle part of the traction bow body is bent into an approximately circular traction ring, the parts on two sides are bent to form a U-shaped traction arm, and the tail end parts are bent into two circular connecting rings; and each screw with a hole penetrates through one connecting ring, one end of the each with a hole is welded with one cap, and the other end is screwed with one hexagonal nut through threads. When the four-limb bone traction bow is in use, two ends of a traction needle penetrate through transversal feed-through holes of the two screws with holes, and the tail end of the traction needle is concealed in the protective cap, so that the sharp part of the tail end of the traction needle is effectively prevented from injuring the skin of a patient and medical staff accidentally. The four-limb bone traction bow is made of medical stainless steel material, is designed into nine hypotypes so as to be selected and used for bone fracture by patients with different figures and in different age groups, can prevent the traction needle from slipping effectively and fix the traction needle firmly, and can reduce the risk of skin infection at a traction needle port.
Description
Technical field
The invention belongs to medical instruments field, be orthopaedics bones of limbs traction device commonly used.
Background technology
When bones of limbs, joint take place fracture with dislocation, often need traction therapy of bone.The bone traction technique is orthopaedics treatment means and method commonly used before and after treatment fracture and some orthomorphias.It is utilize to continue and suitably pull strength and the tensile effect of antagonist, makes fracture, the reduction and keeping of dislocating resets, the braking of inflammation limbs and raise the corrective therapy of contracture deformity limbs etc.The strength of bone traction traction is bigger, and the time of continuous traction is longer, and can regulate effectively, thereby traction effect is preferably arranged.The traction of primary bone is to be converted into iron wire that " " the font square frame is as traction bow, and the two ends of traction bow are converted into " " font square frame, two ends are converted into two circles perpendicular with the square frame plane to U for U; Pull needle is passed one of them circle, skin and bone, passes another circle again, promptly practicable traction; Accomplish the conduction of pull strength; The antagonism muscular strength makes fracture and embolia, reaches therapeutic purposes.Through updating of traction bow technology in the clinical practice process, increased traction bow and pull needle fixture, material by ferrum develop into that ferrum is zinc-plated, nickel plating and rustless steel, solved the problem of existence in the past largely.But still have some shortcomings: the one, the circle and the pull needle of traction bow are vertical design; Limited the diameter of fixed screw, less with the pull needle contact area, the rotation roof pressure power of generation is limited; Normal appearance is fixing not firm; Cause moving and the slip of pull needle of traction bow, exposed pull needle gets into tissue, causes that the pin mouthfeel dyes; The 2nd, for avoiding taking place to slide and come off the screw of can only firmly screwing, stripped thread and fracture often appear, cause a lot of inconvenience to assembly and disassembly; The 3rd, the traction bow model is single, causes some less or bigger bones of limbs tractions, does not have the traction bow of suitable types, causes unnecessary damage to soft tissue and bone; The 4th, the tail end of pull needle usually occurs coming off or fragmentation generally with the phial protection, injures patient and medical personnel's skin; The 5th, when pull needle and traction bow assembling, need break the traction bow arm into two with one's hands, draft arm need have enough length and width; Could fit together with pull needle; Waste material not only, and in distraction procedure because of limbs move, traction bow contacts with the head of a bed or hauling block; Hinder the conduction of pull strength, influence therapeutic effect.This utility model has carried out corresponding improvement on the basis of existing traction bow, remedied above-mentioned deficiency as much as possible.
Summary of the invention
This utility model is according to the diameter of traction bow body; Be designed to large, medium and small three models; Head protector, screw with holes, hex nut also respective design become large, medium and small three models, and the length and width ratio according to the bow body is different again, and each model is designed to 3 inferior models; Totally 9 inferior models of total is a cover, can supply all ages and classes section, different build, the traction of different parts bones of limbs to select for use.
This utility model is made up of a traction bow body (1), two head protectors (2), two screws with holes (3), two hex nuts (4); The traction bow body is a solid cylinder, and the centre is bent into a bail (6) near circle, and both sides are bent into the draft arm of " U " font; It is held to the greatest extent and is bent into two circular connector loop (8); Screw with holes passes connector loop, an end and head protector welding, and the other end spins with hex nut through screw thread mutually.Said traction bow body divides bail (6), draft arm, connector loop (8) three parts; Draft arm divides two isometric oblique arms (7) and two isometric trailing arms (8) again; Oblique arm becomes the obtuse angle with trailing arm; Bail, draft arm, connector loop all at grade, the center of circle of connector loop and homonymy trailing arm are on same straight line.Head protector is one damaged cylinder to be arranged, and the eccentric circular hole (16) of a stringer is arranged on the complete end cylinder (17), and a damaged end is semicylinder (18), semicylinder plane lean-with be equipped with one with the vertical circular hole of cylinder (15).Screw with holes is approximately a cylinder, and an end is cambered surface (20), its radian be cylindrical head protector outer surface radian and equate; Screw with holes divides short column (19), outstanding post (21), threaded column (22) three parts, and the short column diameter is consistent with circular hole (15) diameter of head protector, walks crosswise through hole (23) in the middle of the outstanding post, and threaded column spreads all over screw thread, and its diameter is less than the connector loop internal diameter.Head protector and screw with holes insert in the circular hole (15) through short column (19) and weld together; Form the connector that a mutual vertical appearance is " T " font; Walk crosswise through hole (23) on same straight line on eccentric circular hole on the head protector (16) and the screw with holes, and equal diameters.Hex nut one end opening, an end are remained silent; Opening is to the tab-like one-tenth pad of outer ring (11); Closed end is plane (14), and the hex nut body is hexagonal prism (13), and hexagonal prism and closed end planar shaped circularize chamfering (12); Cloth screw thread (10) in the hex nut spins with threaded column (22) screw thread of screw with holes mutually.
The utlity model has following benefit:
1, the traction bow body is " U " font, and bail, draft arm, connector loop are on same plane, and oblique arm and trailing arm design in obtuse angle, the conduction of pull strength triangularity, and stability is good, pull needle two ends stress equalization, the traction bow body obviously shortens, and saves raw material.
2, pull needle and the parallel linking of the connector loop of traction bow body, contact area is big, good stability, makes existing traction bow change the rotation tractive into by rotation roof pressure mode; It is bigger to produce pulling force; Fixed, effectively avoided the slip of pull needle, reduce the risk of pull needle mouth skin infection.
3, increase the design of head protector, effectively avoid the pull needle tail end to stab skin, also have and control, anti-ly revolve and prevent that screw with holes from deviating from the effect of connector loop.
4, hex nut has certain altitude, and an end is remained silent and designed chamfering, and good looking appearance is conveniently controlled, and avoids dust and foreign material to be detained, and the stripped thread phenomenon can not occur when assembling, dismounting.
5, instrumentarium is the medical stainless steel material, and anti-corrosive properties are strong, and is durable in use, environmentally safe.
6, polytypic designs, and can satisfy the treatment needs of each age group, the traction of various bodily form patient bones of limbs, selects the suitable traction bow of model, and the corresponding diameter that dwindles pull needle reduces pull needle to skin and the unnecessary damage of osseous tissue.
Description of drawings
Fig. 1, band head protector bones of limbs traction bow axonometric drawing (head protector is at last, hex nut infra state);
Fig. 2, band head protector bones of limbs traction bow axonometric drawing (hex nut is at last, head protector infra state);
Band head protector bones of limbs traction bow axonometric drawing after Fig. 3, the installation pull needle;
The A-A cross-sectional view of Fig. 4, Fig. 3;
Fig. 5, traction bow axon view;
Fig. 6, hex nut axonometric drawing;
The inversion figure of Fig. 7, Fig. 6;
Fig. 8, head protector axonometric drawing;
The inversion figure of Fig. 9, Fig. 8;
Figure 10, screw shaft view with holes;
The inversion figure of Figure 11, Figure 11;
Figure 12, head protector and screw with holes welding back axonometric drawing;
The inversion figure of Figure 13, Figure 12.
The specific embodiment
Below in conjunction with accompanying drawing this utility model is carried out detailed description:
(Fig. 1 is that head protector is at last, hex nut infra state for band head protector bones of limbs traction bow axonometric drawing for Fig. 1, Fig. 2;
Fig. 2 is that hex nut is at last, head protector infra state), form by a traction bow body (1), two head protectors (2), two screws with holes (3), two hex nuts (4).
Fig. 3 is the band head protector bones of limbs traction bow axonometric drawing after the installation pull needle (5); Fig. 4 is the A-A cross-sectional view of Fig. 3; Head protector and the screw with holes outward appearance that links together is " T " shape; Walking crosswise in the through hole (23) of two screws with holes inserted at the pull needle two ends respectively, and tail end is hidden in the eccentric circular hole (16) of head protector, and screw with holes passes connector loop (8) and spins mutually with hex nut through screw thread.
Fig. 5 is traction bow bow axon view; The traction bow body is a solid cylinder; Divide bail (6), draft arm, connector loop (8) three parts, draft arm divides two isometric oblique arms (7) and two isometric trailing arms (8) again, and oblique arm becomes the obtuse angle with trailing arm; Bail, draft arm, connector loop all at grade, the center of circle of connector loop and homonymy trailing arm are on same straight line.
Fig. 6 is the hex nut axonometric drawing, and Fig. 7 is inverted hex nut axonometric drawing, and hex nut one end opening, an end are remained silent; Opening is to the outstanding pad (11) of claiming of outer ring; Closed end is plane (14), and nut body is hexagonal prism (13), and hexagonal prism and closed end planar shaped circularize chamfering (12); Cloth screw thread (10) in the nut spins with threaded column (22) screw thread of screw with holes mutually.
Fig. 8 is the head protector axonometric drawing; Fig. 9 is inverted head protector axonometric drawing; Head protector is one the cylinder of segmental defect to be arranged, and the smooth outer surface circle is blunt, and the eccentric circular hole (16) of a stringer is arranged on the complete side cylinder; Damaged part is a semicylinder, damaged last visible one and the vertical circular hole of cylinder (15).
Figure 10 is the inverted screw shaft view with holes of screw shaft view with holes, Figure 11, and screw outward appearance with holes is approximately a cylinder, and an end is cambered surface (20); Its radian equates with head protector outer surface radian; Divide short column (19), outstanding post (21), threaded column (22) three parts, the short column section diameter is minimum, and is consistent with circular hole (15) diameter on the head protector; Middle is outstanding post to the periphery ledge; Through hole (23) is walked crosswise in the centre, and spreading all over threaded portion is threaded column, and its diameter is less than connector loop (8) internal diameter.
Figure 12 is head protector and screw with holes welding back axonometric drawing; Figure 13 is the inversion figure of Figure 12; The short column body of screw with holes inserts in the circular hole (15) of head protector and is welded as a whole; Outward appearance is " T " shape, walks crosswise through hole (23) equal diameters on the eccentric circular hole on the head protector (16) and the screw with holes, and the center of circle is on same straight line.
Below in conjunction with the practical implementation process this utility model is specifically described:
1, this utility model is applicable to the traction therapy of bone of various bodily form patients' of any age bones of limbs fracture, joint dislocation etc., implements operation and should be chosen in operating room, therapeutic room or the head of a bed and accomplish.At first select the band head protector bones of limbs traction bow of suitable types, confirm to be equipped with the distance L of two connector loop outer rims aseptic Bone marrow puncture set and bone and to draw required articles for use according to the model of traction bow according to the position of patient age, stature, fractured bones etc.
2, pull needle is cut to the length that slightly is shorter than L; Choose import and the exit point and the marked of pull needle, partly sterilised, shop aseptic operation towel, inserting needle with go out the pin zone and carry out local anesthesia; Pull needle is fixed on bitbrace or the electric drill; Through bitbrace or electric drill with pull needle through skin, subcutaneous tissue from a sidetracking of bone to opposite side and pass skin, the adjustment pull needle should make bone in the pull needle middle position for best, aseptic dressing and bandaging pull needle mouth.
3, get the band head protector bones of limbs traction bow that chooses and be placed on the relevant position, control head protector on the other hand, another hands opposite spin hex nut also screws off; Make it to separate, screw off another hex nut again, respectively the into lateral direction penetrating hole (23) of two screws with holes is placed at the two ends of pull needle with screw with holes; Extend to the eccentric circular hole (16) of head protector again, clockwise direction rotates hex nut, and screws with spanner; After confirming to fix reliably, connect pull rope and traction weight, install and finish.
Unscrew hex nut with spanner when 4, dismantling, screw off two hex nuts respectively, take off head protector and screw with holes, take off traction bow again, routine is extracted pull needle and is got final product.
5, traction bow body, head protector, screw with holes, the hex nut after the cleaning is assembled to state shown in Figure 1, and sterilization is in order to using next time.
Claims (6)
1. be with head protector bones of limbs traction bow, it is characterized in that: be made up of a traction bow body (1), two head protectors (2), two screws with holes (3), two hex nuts (4), the traction bow body is a solid cylinder; The centre is bent into a bail (6) near circle; Both sides are bent into the draft arm of " U " font, and it is held to the greatest extent and is bent into two circular connector loop (8), and screw with holes passes connector loop; One end and head protector welding, the other end spins with hex nut through screw thread mutually.
2. band head protector bones of limbs traction bow according to claim 1; It is characterized in that said traction bow body divides bail (6), draft arm, connector loop (8) three parts; Draft arm divides two isometric oblique arms (7) and two isometric trailing arms (8) again; Oblique arm becomes the obtuse angle with trailing arm, bail, draft arm, connector loop all at grade, the center of circle of connector loop and homonymy trailing arm are on same straight line.
3. band head protector bones of limbs traction bow according to claim 1; It is characterized in that said head protector is one damaged cylinder to be arranged; The eccentric circular hole (16) that one stringer is arranged on the complete end cylinder (17); A damaged end is semicylinder (18), semicylinder plane lean-with be equipped with one with the vertical circular hole of cylinder (15).
4. band head protector bones of limbs traction bow according to claim 1 is characterized in that said screw with holes is approximately a cylinder, and an end is cambered surface (20), its radian be cylindrical head protector outer surface radian and equate; Screw with holes divides short column (19), outstanding post (21), threaded column (22) three parts, and the short column diameter is consistent with circular hole (15) diameter of head protector, walks crosswise through hole (23) in the middle of the outstanding post, and threaded column spreads all over screw thread, and its diameter is less than the connector loop internal diameter.
5. band head protector bones of limbs traction bow according to claim 1; It is characterized in that said head protector and screw with holes insert in the circular hole (15) through short column (19) and weld together; Form the connector that a mutual vertical appearance is " T " font; Walk crosswise through hole (23) on same straight line on eccentric circular hole on the head protector (16) and the screw with holes, and equal diameters.
6. band head protector bones of limbs traction bow according to claim 1; It is characterized in that said hex nut one end opening, an end remain silent, opening is to the tab-like one-tenth pad of outer ring (11), and closed end is plane (14); The hex nut body is hexagonal prism (13); Hexagonal prism and closed end planar shaped circularize chamfering (12), and cloth screw thread (10) in the hex nut spins with threaded column (22) screw thread of screw with holes mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205057065U CN202365896U (en) | 2011-11-29 | 2011-11-29 | Four-limb bone traction bow with protective caps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205057065U CN202365896U (en) | 2011-11-29 | 2011-11-29 | Four-limb bone traction bow with protective caps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202365896U true CN202365896U (en) | 2012-08-08 |
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ID=46589622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205057065U Expired - Fee Related CN202365896U (en) | 2011-11-29 | 2011-11-29 | Four-limb bone traction bow with protective caps |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202365896U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103445831A (en) * | 2013-08-10 | 2013-12-18 | 李国华 | Bone tractor |
-
2011
- 2011-11-29 CN CN2011205057065U patent/CN202365896U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103445831A (en) * | 2013-08-10 | 2013-12-18 | 李国华 | Bone tractor |
| CN103445831B (en) * | 2013-08-10 | 2015-12-23 | 李国华 | A kind of bone tractor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120808 Termination date: 20151129 |