CN215874897U

CN215874897U - Traction bow

Info

Publication number: CN215874897U
Application number: CN202120830472.5U
Authority: CN
Inventors: 严瀚; 芦虎; 刘恩志
Original assignee: Guangzhou First Peoples Hospital
Current assignee: Guangzhou First Peoples Hospital
Priority date: 2021-04-21
Filing date: 2021-04-21
Publication date: 2022-02-22
Anticipated expiration: 2031-04-21

Abstract

The utility model relates to the technical field of medical instruments and discloses a traction bow which comprises two scissor-type mutually hinged force applying arms, wherein each force applying arm sequentially comprises a clamping end, an expansion section, a hinged section and a handheld end along the length direction of the force applying arm; the two clamping ends are symmetrically provided with positioning and fastening parts, and the positioning and fastening parts comprise positioning parts and bone drilling parts; the positioning piece is fixedly arranged with the clamping end; the bone drilling component penetrates through the positioning component and is in threaded connection with the positioning component. This device convenient operation is high-efficient, even if single installation operation of accomplishing the device that does, moreover, through the structure setting of location fastening portion, this device not only installation stability is better, still has good location effect, and with prior art relative ratio, in the whole operation process of this device, all need not beat the part, very reduces patient's fear and feels, has stronger practicality.

Description

Traction bow

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a traction bow.

Background

The bone traction is one of important operation technologies for treating the fracture of four limbs by orthopedics doctors, a puncture needle penetrates through bone, traction force is applied to the puncture needle through a bone traction bow, the bone traction apparatus has the effects of promoting the reduction of the fracture broken end, enabling the injured limb to have a rest and be fixed, preventing and correcting deformity and facilitating the observation and treatment of open wound surfaces.

No matter skull traction during cervical vertebra fracture, splint during limb fracture or plaster external fixation and bone traction, the aims of maintaining temporary fracture stability and relieving pain of patients caused by unstable fracture and possible nerve vessel and soft tissue injury caused by unstable fracture are fulfilled. The presence of the traction device not only improves the safety and success rate of the rescue in the process of treating the fracture of the patient on time because of the need for surgery on time and the need to maintain the stability of the fractured end temporarily, or because of the need to rescue the life of the patient on time.

The use and the operation of the traction device can bring inconvenience to an operator due to the self heaviness of the traction device in a certain aspect, such as a skull traction bow, a femoral condyle traction bow, a tibial tubercle traction bow and a calcaneus traction bow. These invasive tools also add additional pain to the patient during clinical use, either because the operator is unskilled with the traction device, which can result in inaccurate nail insertion points, or because the patient is unable to engage, which can result in significant operational difficulties. Increasing the possibility of damaging the vascular nerves and soft tissues. The violence of the operation or the additional fear and psychological pressure brought by the pain in the operation process are increased.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model aims to provide the traction bow which is accurate in positioning in the using and operating processes, does not need to be knocked violently when a fixing screw is placed in the traction bow, and has the advantages of high success rate of installation equipment and good traction effect.

In order to achieve the above object, an embodiment of the present invention provides a traction bow, including two scissor-type mutually hinged force applying arms, where each force applying arm sequentially includes a clamping end, an extension section, a hinge section, and a hand-held end along a length direction of the force applying arm, the extension section extends outward, and the two extension sections are combined to form a U-shaped structure; the two clamping ends are symmetrically provided with positioning fastening parts, and the positioning fastening parts comprise positioning parts and bone drilling parts;

the positioning piece is fixedly arranged with the clamping end;

the bone drilling piece penetrates through the positioning piece and is in threaded connection with the positioning piece.

Compared with the prior art, this device convenient operation is high-efficient, even if single installation operation of accomplishing the device that does, moreover, through the structure setting of location fastening portion, this device not only installation stability is better, still has good location effect, compared with the prior art relative ratio, in the whole operation process of this device, all need not beat the part, can obviously reduce because of beating fracture and the pain and the possible extra damage of soft tissue that the ke shi needle brought, very reduce patient's fear and feel, stronger practicality has.

As an improvement of the scheme, the two force applying arms are symmetrically arranged, the hinged sections are provided with rotation avoiding grooves, and the rotation avoiding grooves on the two force applying arms are mutually attached.

As an improvement of the above scheme, the positioning member includes positioning tips, and the positioning tips on the two sets of positioning fastening portions are oppositely arranged.

As an improvement of the above, the bone drilling member comprises a self-tapping and self-drilling screw.

As an improvement of the scheme, the drill bone piece is provided with a depth scale strip along the length direction.

As an improvement of the above scheme, when the end of the drilling member is flush with the positioning tip, the 0-value end of the depth scale bar is flush with the end of the positioning member far away from the positioning tip.

As an improvement of the scheme, the positioning piece comprises a movable section and a threaded section inside, and the bone drilling piece movably penetrates through the movable section and is in threaded connection with the threaded section.

As an improvement of the scheme, the clamping end is integrally provided with an installation block, and the positioning piece is detachably and fixedly connected with the installation block.

As an improvement of the scheme, the mounting block and the positioning piece are fixedly connected through screws.

As an improvement of the scheme, the hand-held end is provided with a finger-penetrating hole.

The method has the following specific beneficial effects:

1. in order to improve the positioning accuracy of the device, the two force applying arms are symmetrically arranged, the hinge joint sections are provided with rotation avoiding grooves, the rotation avoiding grooves on the two force applying arms are arranged in a mutually attached mode, and the symmetrical arrangement can improve the force applying stability of operators and enable the positioning clamping process of the positioning piece to be more stable;

2. the positioning tip plays a role in guiding and guiding the positioning operation of the positioning piece, and the positioning accuracy of the positioning piece is further improved from the guiding structure;

3. when the end part of the drilling member is level with the positioning tip, the 0-value end of the depth scale bar is level with the end part of the positioning member far away from the positioning tip, and when an operator operates the drilling member to drill and fix bones, the operator can clearly know the drilling depth of the drilling member by observing the depth scale bar, so that the operator can perform real-time adaptive adjustment;

4. the threaded section is arranged at one end of the positioning piece close to the positioning tip, so that the threaded connection length of the bone drilling piece and the positioning piece can be shortened, the detachable efficiency of the bone drilling piece is improved, and the daily maintenance and disinfection work of an operator on the device is facilitated;

5. in order to facilitate the operation personnel to carry out daily maintenance and disinfection work on the device, the clamping end is integrally provided with an installation block, and the positioning piece and the installation block are detachably and fixedly connected.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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, fig. 1 is a schematic structural diagram of an embodiment of the present invention.

The utility model provides a traction bow, includes two mutual articulated application of force arm 1, and application of force arm 1 is including pressing from both sides tight end 11, extension section 15, articulated section 12 and handheld end 13 along its length direction according to the preface, and wherein, extension section 15 outwards extends the setting, and 15 combinations of two extension sections form U style of calligraphy structures, and the setting of U style of calligraphy structure lets this device when using, can possess a space that can hold patient's health embedding, plays the effect that the operating personnel of being convenient for installed the device. The hand-held end 13 is provided with a finger hole 14 for an operator to hold. Two clamping end 11 are all provided with location fastening portion of symmetry formula, and location fastening portion includes setting element 2 and bores bone member 3. Wherein, setting element 2 and clamping end 11 are fixed to be set up, bore bone spare 3 and wear to establish setting element 2 to with setting element 2 threaded connection, in this embodiment, setting element 2 is the sclerotin fixing pin, and the middle part is the cavity setting, and is provided with the screw, bores bone spare 3 for self tapping from boring screw, bores bone spare 3 and sclerotin fixing pin threaded connection.

It should be noted that, in this embodiment, the hinge mode of two force application arms 1 is a scissors-type hinge mode, the two ends of the hinge point are respectively the clamping end 11 and the handheld end 13, when in use, the operator can operate the handheld end 13 to make the handheld ends 13 on the two force application arms 1 close to each other, so that the clamping end 11 can synchronously close to the clamping effect, when the handheld end 13 is operated reversely, the clamping end 11 can also be away from each other, and through the structure setting, the tightness operation can be realized.

Illustratively, when the device is used for traction operation, an operation part is marked on the body surface of a patient, the operation part is disinfected and locally anesthetized, skin and subcutaneous tissues are cut open, an operator takes the hand-held end 13, aligns the clamping end 11 with the operation part, controls the hand-held end 13, enables the positioning piece 2 on the clamping end 11 to penetrate through the skin of the operation part and clamps the positioned bone through the skin, the drilling piece 3 can be screwed at the moment, the drilling piece 3 drills into the bone along the positioning piece 2 positioned by clamping, so far, the installation process of the device is finished, and then the device can be used for traction operation on the patient. Compared with the prior art, in the whole operation process of the device, the components do not need to be knocked, the pain and possible additional injury of the fracture and the soft tissue caused by knocking the kirschner wire can be obviously reduced, the fear of the patient is greatly reduced, and the device has strong practicability.

More preferably, in this embodiment, in order to improve the positioning accuracy of device, two force application arms 1 are the symmetry formula setting, and articulated section 12 all is provided with the rotation and dodges groove 4, and the rotation on two force application arms 1 dodges the setting of laminating each other in groove 4, and the symmetry setting of doing so can improve operating personnel's application of force stability, makes the location pincers clamp process of setting element 2 more stable.

More preferably, in this embodiment, the locating element 2 includes the pointed end 5 of location, and the pointed end 5 of location on the two sets of location fastening portions is in setting up in opposite directions, and the pointed end 5 of location plays the effect of guide, direction to the location operation of locating element 2, further improves the location accuracy of locating element 2 from the guide structure.

More preferably, in the present embodiment, the bone drill 3 is provided with a depth scale along its length.

It should be noted that when the end of the bone drilling member 3 is flush with the positioning tip 5, the 0-value end of the depth scale bar is flush with the end of the positioning member 2 away from the positioning tip 5.

Illustratively, when the drilling component 3 is operated to perform drilling bone fixation, the operator can clearly know the drilling depth of the drilling component 3 by observing the depth scale bar, so that the operator can perform real-time adaptive adjustment.

Preferably, in this embodiment, the positioning member 2 includes a movable section and a threaded section therein, and the bone drilling member 3 is movably disposed through the movable section and in threaded connection with the threaded section.

It should be noted that, in this embodiment, the thread section is disposed at one end of the positioning member 2 close to the positioning tip 5, so that the length of the threaded connection between the drill bone member 3 and the positioning member 2 can be shortened, the detachable efficiency of the drill bone member 3 can be improved, and the operator can perform routine maintenance and sterilization on the device.

Preferably, in order to facilitate the daily maintenance and disinfection of the device by an operator, the clamping end 11 is integrally provided with the mounting block 6, and the positioning member 2 is detachably and fixedly connected with the mounting block 6. Further thinning, the mounting block 6 is fixedly connected with the positioning piece 2 through a screw.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the utility model.

Claims

1. A traction bow is characterized by comprising two force applying arms which are mutually hinged in a scissor type, wherein each force applying arm sequentially comprises a clamping end, an expansion section, a hinge section and a handheld end along the length direction of the force applying arm; the two clamping ends are symmetrically provided with positioning fastening parts, and the positioning fastening parts comprise positioning parts and bone drilling parts;

the positioning piece is fixedly arranged with the clamping end;

2. The traction bow according to claim 1, wherein the two force applying arms are symmetrically arranged, the hinge sections are provided with rotation avoiding grooves, and the rotation avoiding grooves on the two force applying arms are attached to each other.

3. The traction bow according to claim 1, wherein the positioning members comprise positioning tips, and the positioning tips of the two positioning fastening portions are disposed opposite to each other.

4. The traction bow of claim 1, wherein the burr comprises a self-tapping, self-drilling screw.

5. The traction bow of claim 3, wherein said burr is provided with a depth scale along its length.

6. The traction bow of claim 5, wherein when the end of the burr is flush with the locating tip, the 0-value end of the depth scale bar is flush with the end of the locating member distal from the locating tip.

7. The traction bow according to claim 1, wherein the positioning member comprises a movable section and a threaded section inside, and the bone drilling member is movably disposed through the movable section and is in threaded connection with the threaded section.

8. The traction bow according to claim 1, wherein the clamping end is integrally provided with a mounting block, and the positioning member is detachably and fixedly connected with the mounting block.

9. The traction bow according to claim 8, wherein the mounting block is fixedly attached to the positioning member by screws.

10. The traction bow of claim 1, wherein said hand held end is provided with a finger hole.