CN210095891U

CN210095891U - Fracture retractor repositor

Info

Publication number: CN210095891U
Application number: CN201821884811.2U
Authority: CN
Inventors: 孔天天; 杨晓芸
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-11-15
Filing date: 2018-11-15
Publication date: 2020-02-21
Anticipated expiration: 2028-11-15

Abstract

The utility model relates to a fracture leads out restorer includes at least according to nested connecting rod and the jack catch of setting on the connecting rod tip that sets up on two telescopic tip, the sleeve is cavity pipe form, wherein: in the case where the inflatable balloon is disposed in the hollow inner cavity of the sleeve, the inflatable balloon can be out of contact with the connecting rod in such a manner that shut-off valves are provided at both end portions thereof, respectively; the connecting rod is movable in the axial direction of the sleeve in such a manner as to receive an external force provided by the inflatable air bag in a state where the shut-off valve is opened. The utility model discloses an inflatable mode makes the gas cell inflation, and then the drive connecting rod slides, fixes under the condition at the both ends at the fracture position at the jack catch, can control the dynamics of drawing out conveniently, and simultaneously, the inflation process is steady, draws out the dynamics and can control effectively, has avoided the extra damage that increases suddenly hard and lead to when manual external force of exerting.

Description

Fracture retractor repositor

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to fracture leads out restorer.

Background

In the conventional internal fixation operation for fracture, when the dislocation is retracted, the dislocation is generally pulled open by a double-person tug-of-war type and then reset, and a steel plate is fixed, so that medical workers are very arduous in the mode, and pain is increased for patients, particularly for femoral fracture, because the muscle of the leg is developed, the muscle is strongly contracted by the stimulation of pain after fracture, and meanwhile, hematoma, edema and over-high tension are generated locally, the dislocation is not easy to pull open, the operation time is prolonged frequently, and the amount of bleeding is more; meanwhile, the bone forceps are not fully retracted, the alignment is not ideal, even if the alignment is possible, the fixation effect is not good, slight dislocation is easy to occur during drilling, the upper clamping jaw and the lower clamping jaw are adopted for clamping the fracture part in the past, the muscles around the bone are required to be completely stripped, the injury is large, the bone forceps and the fixator are used for fixation after the alignment, the time and the labor are wasted, and the pain of a patient is large.

The patent document of publication No. CN2156815 discloses a fracture retractor repositor, which consists of a frame, a screw, a fixing block and a clamp holder part; the double-clamp is adopted, the upper part of the double-clamp is respectively arranged on a screw rod with left-handed and right-handed threads between frames, the middle part of the double-clamp is a knurled round sleeve with screw hole cavities at the upper part and the lower part, the left clamping jaw and the right clamping jaw are arranged at the lower part of the double-clamp to form a circular arc shape, the upper part, the lower part and the transposition position of the clamping jaws are adjusted by upper and lower flat nuts, and the machine replaces manpower, so that the difficulty that time and labor. But this utility model can't live and control the stretching and retracting force accurately to the centre gripping angle of clamping jaw can't be adjusted conveniently, the skeleton to the dislocation of being not convenient for resets.

SUMMERY OF THE UTILITY MODEL

The word "module" as used herein describes any type of hardware, software, or combination of hardware and software that is capable of performing the functions associated with the "module".

To the deficiency of the prior art, the utility model provides a repositor is led out in fracture includes at least and sets up the connecting rod on two telescopic tip and set up the jack catch on the connecting rod tip according to nested mode, the sleeve is cavity pipe form, wherein: in the case where the inflatable bladder is provided in the hollow inner cavity of the sleeve, the inflatable bladder can be out of contact with the connecting rod in such a manner that the shut-off valves are provided at both end portions thereof, respectively. The connecting rod is movable in the axial direction of the sleeve in such a manner as to receive an external force provided by the inflatable air bag in a state where the shut-off valve is opened.

According to a preferred embodiment, the inner wall of the sleeve is provided with at least two sliding grooves with extending directions parallel to the axial direction of the sleeve, and the outer wall of the connecting rod is provided with a plurality of sliding protrusions distributed along the circumferential direction of the connecting rod, wherein: the connecting rod is connected with the sleeve in a sliding mode according to the mode that the sliding protrusion is nested into the sliding groove.

According to a preferred embodiment, the sleeve is provided with at least one fixing groove in the form of a ring on its inner wall close to its end, wherein: under the condition that the connecting rod moves along the axial direction of the sleeve, the sliding protrusion can abut against the fixing groove in a manner of being out of contact with the sliding groove, wherein the connecting rod can change the included angle between the clamping jaws in a manner of rotating along the circumferential direction of the fixing groove.

According to a preferred embodiment, the connecting rod comprises at least a first strut and a second strut, wherein: the clamping jaw is arranged on the first supporting rod, and the second supporting rod is connected to the sleeve; the first support rod is connected with the second support rod through a compression spring.

According to a preferred embodiment, the shape of the sliding projection is defined by a hemisphere, and the shape of the cross section of the sliding groove is defined by a semicircle.

According to a preferred embodiment, the sleeve is provided with at least one inflation channel, wherein: the inflatable air bag is communicated with an inflating device through the inflating channel.

According to a preferred embodiment, the sleeve is further provided with a mounting groove penetrating through an outer wall thereof, and the shut-off valve is a sealing plate having a shape defined by a circular disk, wherein the inflatable air bag is out of contact with the connecting rod in such a manner that the shut-off valve is inserted into the mounting groove.

According to a preferred embodiment, the jaw comprises at least a first snap ring and a second snap ring, both semi-circular, wherein: the first snap ring and the second snap ring are detachably connected to each other with one end portion thereof passing through a bolt.

According to a preferred embodiment, the first snap ring is fixedly connected to the first strut, wherein: the end parts of the first clamping ring and the second clamping ring are respectively provided with a threaded hole, and the bolt is respectively in threaded connection with the first clamping ring and the second clamping ring in a manner of being embedded into the threaded holes.

According to a preferred embodiment, the first snap ring and the second snap ring are relatively movable in such a way as to reduce the distance between each other, in the case of a rotation of the bolt about its axis in a first direction; or the first snap ring and the second snap ring are relatively movable in a manner of increasing a distance between each other in a case where the bolt is rotated in a second direction around an axis thereof; the first direction and the second direction are opposite to each other.

The utility model has the advantages of:

(1) the utility model discloses an inflatable mode makes the gas cell inflation, and then the drive connecting rod slides, fixes under the condition at the both ends at the fracture position at the jack catch, can control the dynamics of drawing out conveniently, and simultaneously, the inflation process is steady, draws out the dynamics and can control effectively, has avoided the extra damage that increases suddenly hard and lead to when manual external force of exerting.

(2) The utility model discloses a connecting rod can rotate in the sleeve in order to change inclination between the jack catch, and then can be fixed at the both ends at fracture position according to the mode that the extending direction of connecting rod and bone is the tilt state, and then can be more convenient be applied to the centre gripping at more fracture positions.

(3) The utility model discloses a connecting rod passes through compression spring to be connected, has certain flexibility and elasticity, can match the crooked form of bone through compression spring's compression and/or crooked developments.

Drawings

FIG. 1 is a front view of a preferred fracture reduction retractor of the present invention;

FIG. 2 is a side view of a preferred fracture retraction reducer of the present invention; and

fig. 3 is a sectional view of section a-a in fig. 1.

List of reference numerals

1: a sleeve 2: connecting rod 3: jack catch

4: an inflatable air bag 5: closing the valve 6: sliding groove

7: the slide protrusion 8: fixing groove 9: compression spring

10: the inflation passage 11: the inflator 12: mounting groove

13: bolt 14: threaded hole

2 a: first strut 2 b: second strut 3 a: first snap ring

3b second clasp α

Detailed Description

The following detailed description is made with reference to the accompanying drawings.

As shown in fig. 1 to 3, the present invention provides a bone fracture retraction repositor, which at least comprises a connecting rod 2 arranged on two ends of a sleeve 1 in a nesting manner and a claw 3 arranged on the end of the connecting rod 2. The sleeve 1 is in a hollow round tube shape. An inflatable bladder 4 is disposed within the hollow interior of the sleeve 1. The inflatable air bag 4 can be brought out of contact with the connecting rod 2 in such a manner that the shut-off valves 5 are provided at both end portions thereof, respectively. For example, the sleeve 1 is further provided with a mounting groove 12 extending through its outer wall, which mounting groove, viewed in a direction parallel to the axial direction of the sleeve, is semicircular in shape so that the shut-off valve can be fixed in the sleeve through the mounting groove. The shut-off valve 5 is a seal plate whose shape is defined by a disk shape. When the closing valve is fixed in the sleeve and is in a closed state, the inflatable air bag cannot be contacted with the connecting rod, so that the connecting rod keeps fixed in position. Preferably, the tie bar 2 is movable in the axial direction of the sleeve 1 in such a manner as to receive an external force supplied from the inflatable air bag 4 when the shut-off valve is in an open state by being withdrawn from the inside of the sleeve. The inflatable air bag can keep the same retracting force in the retracting and resetting process, and the single retracting force is small, so that the pain aggravation of a patient caused by overlarge force can be effectively reduced. Meanwhile, the closing valve can enable the connecting rods on the left side and the right side of the sleeve to be driven independently, and when the sleeve is clinically introduced, a proper resetting mode can be selected better according to the fracture part. For example, in the case of a fracture of the arm, the side of the arm connected to the palm is in a suspended state, and thus, when the reductor is fixed to both sides of the fracture site, the retraction force can be provided by opening the shut-off valve on the side close to the palm to move the connecting rod on that side.

Preferably, the inner wall of the sleeve 1 is provided with at least two sliding grooves 6 extending parallel to the axial direction of the sleeve 1. The shape of the cross section of the slide groove is defined by a semicircle. The outer wall of the connecting rod 2 is provided with a plurality of sliding protrusions 7 distributed along the circumferential direction of the connecting rod 2. The shape of the sliding projection is defined by a hemisphere. The connecting rod is slidably connected with the sleeve 1 in such a manner that the sliding protrusion 7 is nested to the sliding groove 6 so that the connecting rod can move in the axial direction of the sleeve.

Preferably, the inner wall of the sleeve, which is close to the end part of the sleeve, is provided with at least one annular fixing groove 8, under the condition that the connecting rod moves along the axial direction of the sleeve, the sliding protrusion can abut against the fixing groove 8 in a way of being separated from the sliding groove, the diameter of the sliding groove is larger than the sum of the inner diameter of the sleeve and the inner diameter of the sliding groove, so that the included angle α between the clamping jaws 3 can be changed in a way of rotating along the circumferential direction of the fixing groove 8 by the connecting rod 2, the connecting rod can rotate in the sleeve to change the inclined angle between the clamping jaws, and further the connecting rod can be fixed at two ends of a fracture part in a way of being inclined with the extending direction of a bone, and further more convenient clamping applied to more fracture parts.

Preferably, the connecting rod comprises at least a first strut 2a and a second strut 2b, wherein: the first supporting rod is provided with a clamping jaw. The second strut 2b is connected to the sleeve. The first strut 2a is connected to the second strut 2b via a compression spring 9. Compared with the traditional connecting rod which is completely in a straight line shape, the utility model discloses compression spring makes the connecting rod have certain flexibility and elasticity and can slightly bend, can match the bending form of bone through compression and/or the crooked developments of compression spring.

Preferably, at least one inflation channel 10 is provided on the sleeve. The inflatable air bag 4 communicates with an inflator 11 through an inflation passage 10. The inflation device may be a small air pump or an inflatable bladder, so that the inflatable bladder can be inflated manually or automatically.

Preferably, the jaw includes at least a first snap ring 3a and a second snap ring 3b both in a semicircular ring shape, wherein: the first snap ring 3a and the second snap ring 3b are detachably connected to each other with one end portion thereof penetrated by a bolt 13. Specifically, first snap ring fixed connection is to first branch 2a, wherein: threaded holes 14 are provided on the end portions of the first and

second snap rings

3a, 3 b. The bolts 13 are screwed into the first and second snap rings 3a and 3b, respectively, so as to be inserted into the threaded holes 14.

Preferably, the first snap ring 3a and the second snap ring 3b are relatively movable in such a manner as to reduce the distance between each other in the case where the bolt 13 is rotated in the first direction about the axis thereof. Or in the case where the bolt 13 is rotated in the second direction about its axis, the first snap ring 3a and the second snap ring 3b can be relatively moved in such a manner as to increase the distance between each other. The first direction and the second direction are opposite to each other. For example, the first direction may be a clockwise direction and the second direction may be a counterclockwise direction. The clamping force of the clamping jaw can be adjusted through the bolt.

For the convenience of understanding, the working principle of the fracture retraction repositor of the present invention will be discussed in detail.

The connecting bar is first moved so that the sliding protrusion 7 is brought into contact with the fixing groove 8, so that the connecting bar can be rotated to adjust the inclination angle of the jaws. After the angle adjustment is finished, the sliding protrusion 7 is nested into the sliding groove, so that the connecting rod can be locked to limit the rotation of the connecting rod. Then the claws are respectively fixed on both sides of the fracture part, and the initial fixation is carried out by screwing the bolt. And selecting whether to pull the closing valve away according to requirements so that the inflatable air bag can push the corresponding connecting rod to move. And finally, inflating gas into the inflatable air bag through an inflating device to gradually retract the fracture part.

It should be noted that the above-mentioned embodiments are exemplary, and those skilled in the art can devise various solutions in light of the present disclosure, which are also within the scope of the present disclosure and fall within the scope of the present disclosure. It should be understood by those skilled in the art that the present specification and drawings are illustrative only and are not limiting upon the claims. The scope of the invention is defined by the claims and their equivalents.

Claims

1. Fracture retractor restorer includes connecting rod (2) and jack catch (3) of setting on connecting rod (2) tip that set up on two tip of sleeve (1) according to nested mode at least, its characterized in that, sleeve (1) is the hollow pipe form, wherein:

in the case where the inflatable bladder (4) is disposed in the hollow inner cavity of the sleeve (1), the inflatable bladder (4) can be out of contact with the connecting rod (2) in such a manner that shut-off valves (5) are provided at both end portions thereof, respectively;

the connecting rod (2) can move along the axial direction of the sleeve (1) under the external force provided by the inflatable air bag (4) under the condition that the closing valve (5) is in an opening state.

2. The retractor for reducing bone fractures according to claim 1, wherein the sleeve (1) is provided on its inner wall with at least two sliding grooves (6) extending in parallel to the axial direction of the sleeve (1), and the outer wall of the connecting rod (2) is provided with a plurality of sliding protrusions (7) distributed along the circumferential direction of the connecting rod (2), wherein:

the connecting rod (2) is connected with the sleeve (1) in a sliding mode according to the mode that the sliding protrusion (7) is nested in the sliding groove (6).

3. A fracture retraction reductor according to claim 2, characterized in that the sleeve (1) is provided with at least one fixing groove (8) in a circular ring shape on its inner wall near its end, wherein:

in the case where the connecting rod (2) moves in the axial direction of the sleeve (1), the sliding projection (7) can abut against the fixing groove (8) in a manner of being out of contact with the sliding groove (6), wherein the connecting rod (2) can change an angle (α) between the jaws (3) with respect to each other in a manner of rotating in the circumferential direction of the fixing groove (8).

4. A fracture retraction reducer according to claim 3, characterized in that said connecting rod (2) comprises at least a first strut (2a) and a second strut (2b), wherein:

the jaw (3) is arranged on the first support rod (2a), and the second support rod (2b) is connected to the sleeve (1);

the first support rod (2a) is connected with the second support rod (2b) through a compression spring (9).

5. A fracture retraction reducer according to claim 4, characterized in that the shape of said sliding projection (7) is defined by a hemisphere and the shape of the cross section of said sliding groove (6) is defined by a semicircle.

6. A fracture retraction reducer according to claim 1, characterized in that said sleeve (1) is provided with at least one inflation channel (10), wherein:

the inflatable air bag (4) is communicated with an inflating device (11) through the inflating channel (10).

7. A fracture retraction reducer according to claim 1, characterized in that the sleeve (1) is further provided with an installation slot (12) through its outer wall, the shut-off valve (5) being a sealing plate defined by a disc shape, wherein,

the inflatable air bag (4) is separated from the connecting rod (2) according to the mode that the closing valve (5) is inserted into the mounting groove (12).

8. A fracture retraction reducer according to claim 4, characterized in that said jaws (3) comprise at least a first snap ring (3a) and a second snap ring (3b) both semi-circular in shape, wherein:

the first snap ring (3a) and the second snap ring (3b) are detachably connected to each other such that one end portion of each of the first snap ring and the second snap ring is penetrated by a bolt (13).

9. A fracture retraction reducer according to claim 8, characterized in that said first collar (3a) is fixedly connected to said first strut (2a), wherein:

threaded holes (14) are formed in the end portions of the first clamping ring (3a) and the second clamping ring (3b), and bolts (13) are respectively in threaded connection with the first clamping ring (3a) and the second clamping ring (3b) in a mode of being embedded into the threaded holes (14).

10. A fracture retraction reducer according to claim 8, characterized in that said first snap ring (3a) and said second snap ring (3b) are relatively movable in such a way as to reduce the distance between each other, in the event of rotation of said bolt (13) about its axis in a first direction; or

The first snap ring (3a) and the second snap ring (3b) are relatively movable in such a way as to increase the distance between each other in the case where the bolt (13) is rotated in a second direction about its axis;

the first direction and the second direction are opposite to each other.