CN219982984U - Bone taking and grafting device in proximal femur passage - Google Patents

Abstract

The utility model discloses a bone taking and grafting device in a proximal femoral passage, which belongs to the technical field of medical instruments and comprises an upper barrel body, a sleeve body, a lower barrel body and a bone grafting push rod, wherein the sleeve body is arranged in a hollow mode, the upper barrel body is detachably connected to the top of the sleeve body, the lower barrel body is detachably connected to the bottom of the sleeve body, the bone grafting push rod is arranged in the sleeve body and is in sliding fit with the sleeve body, a hand drill hollow drill bit which is detachably connected with the upper barrel body is arranged on the upper barrel body, and screw sleeves are arranged at the top and the bottom of the sleeve body. The utility model can realize the operation of taking and planting the bone of the proximal femur bone.

Description

Bone taking and grafting device in proximal femur passage

Technical Field

The utility model belongs to the technical field of medical appliances, and particularly relates to a bone taking and grafting device in a proximal femoral channel.

Background

Autologous bone grafting is a gold standard for treating bone nonunion. At present, autologous ilium is taken for autologous bone grafting, but the following problems exist: postoperative iliac hematoma: ilium is cancellous bone, periosteum is widely stripped, bone taking amount is large, and the damage to the femoral outside cutaneous nerve is caused by incomplete hemostasis in operation and the like: pain in the bone supply area due to skin paresthesia outside the thigh, etc.: pain in the areas of refractory bone extraction is accompanied by or not accompanied by a neurological sensory disturbance.

Based on the above problems, a bone taking and grafting device is designed to obtain cancellous bone in a non-load bearing area at the proximal end of a femur, and graft the cancellous bone to a target bone grafting area.

Disclosure of Invention

The embodiment of the utility model provides a bone taking and grafting device in a proximal femoral channel, which aims to solve the problems in the prior art.

The embodiment of the utility model adopts the following technical scheme: the utility model provides a get bone grafting ware in proximal femur passageway, includes barrel, sleeve body, lower barrel and plants the bone push rod, the sleeve body is hollow setting, go up barrel detachable and connect at the top of sleeve body, barrel detachable connects the bottom at the sleeve body down, it sets up at the sleeve body and plants bone push rod and sleeve body sliding fit to plant the bone push rod, go up be equipped with on the barrel with detachable the hand drill hollow drill bit of connection, the top and the bottom of sleeve body all are equipped with the thread bush.

Further, the top of last barrel is equipped with the connector of hexagon, be equipped with the guide pin hole on the connector, go up threaded connection between the thread bush at barrel and sleeve body top.

Further, the bottom of lower barrel is equipped with a plurality of equidistant sawtooth that set up, be equipped with the step in the lower barrel, threaded connection between the threaded sleeve of lower barrel and sleeve body bottom.

Further, the bone grafting push rod comprises a push rod head and an extension handle, wherein the extension handle is arranged at the top of the push rod head, and the diameter of the push rod head is matched with the inner diameter of the sleeve body.

Further, the bottom of hand drill hollow drill bit is equipped with the hexagon recess, the hexagon recess corresponds with the connector of hexagon, be equipped with the guide pin holding tank in the hand drill hollow drill bit.

Further, when bone grafting is performed, the guide pin accommodating groove corresponds to the guide pin hole.

The above at least one technical scheme adopted by the embodiment of the utility model can achieve the following beneficial effects:

according to the utility model, the hand drill is started, the hand drill drives the hand drill hollow drill bit to rotate, and then the bone taking and grafting device is driven to rotate to take bones, when the bone taking is carried out to a bone grafting target area along the guide needle, the guide needle and the bone taking and grafting device are withdrawn, the upper cylinder body and the lower cylinder body of the bone taking and grafting device are unscrewed, the blood supply in the sleeve body and the bone trabecular arranged in disorder necrotic autologous bone are pushed out by the push rod head, the reserved autologous cancellous bone material is determined, the sleeve body is placed in the bone grafting target area through the bone canal, and the autologous cancellous bone material reserved in the sleeve body is pushed out by the push rod head and filled into the bone grafting target area to finish bone grafting.

Drawings

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

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

FIG. 2 is a schematic diagram of a second perspective structure of the present utility model;

FIG. 3 is a perspective view showing the split structure of the present utility model;

FIG. 4 is a schematic view of a bone graft push rod and a sleeve body according to the present utility model;

FIG. 5 is a cross-sectional view of a hand drill hollow drill bit of the present utility model;

FIG. 6 is a schematic view of a bone extraction and grafting device mounted on a femur;

reference numerals

The hand drill comprises an upper cylinder body 1, a connector 11, a guide pin hole 12, a sleeve body 2, a threaded sleeve 21, a bone grafting push rod 3, a push rod head 31, an extension handle 32, a hand drill hollow drill bit 4, a groove 41, a guide pin accommodating groove 42, a guide pin 5, a lower cylinder body 6, saw teeth 61 and a step 62.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to specific embodiments of the present utility model and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The following describes in detail the technical solutions provided by the embodiments of the present utility model with reference to the accompanying drawings.

Referring to fig. 1 to 6, the embodiment of the utility model provides a bone grafting device for taking bone in a proximal femoral canal, which comprises an upper barrel 1, a sleeve body 2, a lower barrel 6 and a bone grafting push rod 3, wherein the sleeve body 2 is arranged in a hollow manner, the upper barrel 1 is detachably connected to the top of the sleeve body 2, the lower barrel 6 is detachably connected to the bottom of the sleeve body 2, the bone grafting push rod 3 is arranged in the sleeve body 2 and the bone grafting push rod 3 is in sliding fit with the sleeve body 2, the upper barrel 1 is provided with a hand drill hollow drill 4 which is detachably connected, the top and the bottom of the sleeve body 2 are respectively provided with a thread bush 21, when the bone grafting device is used, bone grafting points are set at the proximal femoral canal through the expansion channels by expanding channels (the expansion channels are channels which are channels opened on the skin), the guide pins 5 are used for positioning, and the direction and depth range of the bone grafting channels are determined by driving the guide pins 5.

Specifically, a hexagonal connector 11 is arranged at the top of the upper cylinder 1, a guide pin hole 12 is arranged on the connector 11, the upper cylinder 1 is in threaded connection with a threaded sleeve 21 at the top of the sleeve body 2, the upper cylinder 1 is installed on the sleeve body 2 when bone taking is performed, and the upper cylinder 1 is detached from the sleeve body 2 when bone grafting is performed; the bottom of the hand drill hollow drill bit 4 is provided with a hexagonal groove 41, the hexagonal groove 41 corresponds to the hexagonal connector 11, and the hand drill hollow drill bit 4 is internally provided with a guide pin accommodating groove 42. When the bone grafting device is used, the hand drill hollow drill bit 4 is installed on the hexagonal connector 11 through the hexagonal groove 41 at the bottom, the hand drill hollow drill bit 4 is connected with the hand drill, driving force is provided for rotation of the hand drill hollow drill bit 4, when the bone grafting device is moved into the femur, the guide needle 5 moves in the guide needle hole 12 and the guide needle accommodating groove 42, guiding positioning is provided for movement of the lower cylinder 6 into the femur, bone grafting device is rotated to take bones, and the bone grafting target area is moved along the guide needle 5.

Specifically, the bottom of lower barrel 6 is equipped with the sawtooth 61 that a plurality of equidistant settings, be equipped with step 62 in the lower barrel 6, be equipped with the bone core card that step 62 conveniently bore, take bone grafting ware along with getting the bone and take out and can not spill, screw thread connection between the screw thread cover 21 of barrel 6 and sleeve body 2 bottom down, install barrel 6 on sleeve body 2 down when getting the bone, dismantle barrel 6 from sleeve body 2 down when planting the bone, rotate through sawtooth 61 and can carry out rotary cutting to the femur, bore the femur.

Specifically, the bone grafting push rod 3 comprises a push rod head 31 and an extension handle 32, wherein the extension handle 32 is arranged at the top of the push rod head 31, and the diameter of the push rod head 31 is matched with the inner diameter of the sleeve body 2; when the bone grafting is carried out, the pushing head 31 can be driven to move in the sleeve body 2 by pushing the extension handle 32, and the autologous cancellous bone material left in the sleeve body 2 is pushed out and filled into a bone grafting target area by using the pushing head 31 to complete the bone grafting.

Specifically, the guide pin receiving groove 42 corresponds to the guide pin hole 12 when bone grafting is performed.

The working principle of the utility model is as follows: when the bone taking device is used, bone taking points are set at the proximal end of femur through expanding a channel step by step, positioning by utilizing the guide needle 5, driving the guide needle 5 to determine the direction and depth range of the bone taking channel, sleeving the bone taking device on the guide needle 5 through the guide needle accommodating groove 42 and the guide needle hole 12, connecting the connector 11 with the hand drill hollow drill bit 4, enabling the hexagonal groove 41 of the hand drill hollow drill bit 4 to be just matched and clamped with the connector 11, enabling the hand drill to drive the hand drill hollow drill bit 4 to rotate by the penetrated guide needle 5 just through the guide needle hole 12, driving the bone taking device to rotate to take bone when the bone taking device is driven to rotate along the guide needle 5 to a bone grafting target area, withdrawing the guide needle 5 and the bone taking device, unscrewing the upper cylinder 1 and the lower cylinder 6 of the bone taking device, pushing out the self-bone with the head 31 to enable the blood supply in the sleeve body 2 and the bone trabecula to be arranged in disorder, determining the reserved self-bone material, and then placing the sleeve body 2 in the bone grafting target area through the bone channel to push the bone material to fill the bone grafting target area.

The foregoing is merely exemplary of the present utility model and is not intended to limit the present utility model. Various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are to be included in the scope of the claims of the present utility model.

Claims (6)

1. The utility model provides a get bone grafting ware in proximal femur passageway, its characterized in that, including last barrel (1), sleeve body (2), lower barrel (6) and bone grafting push rod (3), sleeve body (2) are hollow setting, go up barrel (1) detachable and connect the top at sleeve body (2), barrel (6) detachable connect the bottom at sleeve body (2) down, bone grafting push rod (3) set up in sleeve body (2) and bone grafting push rod (3) and sleeve body (2) sliding fit, upward be equipped with on barrel (1) with detachable hand drill hollow drill bit (4), the top and the bottom of sleeve body (2) all are equipped with thread bush (21).

2. The bone grafting instrument for taking bones in proximal femoral canal according to claim 1, wherein: the top of last barrel (1) is equipped with connector (11) of hexagon, be equipped with guide pin hole (12) on connector (11), go up threaded connection between screw thread cover (21) at barrel (1) and sleeve body (2) top.

3. The bone grafting instrument for taking bones in proximal femoral canal according to claim 1, wherein: the bottom of lower barrel (6) is equipped with a plurality of equidistant sawtooth (61) that set up, be equipped with step (62) in lower barrel (6), threaded connection between threaded sleeve (21) of lower barrel (6) and sleeve body (2) bottom.

4. The bone grafting instrument for taking bones in proximal femoral canal according to claim 1, wherein: the bone grafting push rod (3) comprises a push rod head (31) and an extension handle (32), wherein the extension handle (32) is arranged at the top of the push rod head (31), and the diameter of the push rod head (31) is matched with the inner diameter of the sleeve body (2).

5. An in-femoral approach bone harvesting bone grafting device according to claim 2, wherein: the bottom of hand drill hollow drill bit (4) is equipped with hexagon recess (41), hexagon recess (41) are corresponding with hexagon connector (11), be equipped with guide pin holding groove (42) in hand drill hollow drill bit (4).

6. The bone grafting instrument for taking bones in a proximal femoral canal according to claim 5, wherein: when bone grafting is performed, the guide pin accommodating groove (42) corresponds to the guide pin hole (12).