阅读说明：本技术 一种急性骨髓炎治疗装置 (Acute osteomyelitis treatment device ) 是由 张�杰 张博友 徐娇 李锦光 任飞 谷风康 王静成 于 2021-07-14 设计创作，主要内容包括：本申请涉及医疗器具技术领域,提供一种急性骨髓炎治疗装置,包括锥形外筒、空心导筒、抱卡、钻头、导筒手柄、限位挡板和限深螺杆；锥形外筒设置在导筒手柄上,空心导筒螺纹连接于锥形外筒内并可撑开锥形外筒,限位挡板滑动设于导筒手柄上,限深螺杆转动设置在导筒手柄上并与限位挡板螺纹连接,钻头与限深螺杆平行设置并穿过限位挡板后能伸入至空心导筒和锥形外筒内,抱卡设于钻头上并位于限位挡板远离空心导筒的一侧。使锥形外筒抵接在骨头钻孔处,旋转空心导筒将锥形外筒撑开的同时将骨头表面组织撑开,钻机驱动钻头转动并进行钻孔,当抱卡抵接限位挡板时,完成钻孔动作,使得钻孔的深度精准可控,有效保证了手术的顺利进行以及保证治疗效果。(The application relates to the technical field of medical instruments, and provides an acute osteomyelitis treatment device which comprises a conical outer cylinder, a hollow guide cylinder, a holding clamp, a drill bit, a guide cylinder handle, a limiting baffle and a depth limiting screw rod, wherein the conical outer cylinder is provided with a hollow guide cylinder; the toper urceolus sets up on the guide handle, and hollow guide threaded connection is in the toper urceolus and can struts the toper urceolus, and limit baffle slides and locates on the guide handle, and the limit for depth screw rod rotates and sets up on the guide handle and with limit baffle threaded connection, and the drill bit can stretch into to hollow guide and toper urceolus after passing limit baffle with limit for depth screw rod parallel arrangement, embraces the card and locates on the drill bit and lie in one side that limit baffle kept away from hollow guide. Make toper urceolus butt in bone drilling department, rotatory hollow guide cylinder struts bone surface tissue when strutting the toper urceolus, and rig drive bit rotates and drills, when embracing the card butt limit baffle, accomplishes the drilling action for the degree of depth of drilling is accurate controllable, has effectively guaranteed going on smoothly and guaranteeing treatment effect of operation.)

1. An acute osteomyelitis treatment device, comprising: the device comprises a conical outer cylinder (1), a hollow guide cylinder (2), a clamp (3), a drill bit (4), a guide cylinder handle (5), a limit baffle (6) and a depth limit screw (7); toper urceolus (1) sets up on guide tube handle (5), hollow guide tube (2) threaded connection in toper urceolus (1) and can strut toper urceolus (1), limit baffle (6) slide and locate on guide tube handle (5), limit dark screw rod (7) rotate and set up guide tube handle (5) go up and with limit baffle (6) threaded connection, drill bit (4) with limit dark screw rod (7) parallel arrangement passes can stretch into behind limit baffle (6) to hollow guide tube (2) with in toper urceolus (1), embrace card (3) and locate on drill bit (4) and be located limit baffle (6) are kept away from one side of hollow guide tube (2).

2. The acute osteomyelitis treatment device of claim 1, wherein: the cylinder wall of one end of the conical outer cylinder (1) far away from the limiting baffle (6) is provided with at least three valve blades (11) arranged at intervals.

3. The acute osteomyelitis treatment device of claim 2, wherein: guide cylinder handle (5) are including handheld portion (51), guide part (52) and installation department (53), guide part (52) set up perpendicularly the one end of handheld portion (51), installation department (53) set up perpendicularly guide part (52) are kept away from the one end of handheld portion (51), installation department (53) with handheld portion (51) parallel arrangement, toper urceolus (1) sets up on installation department (53) and with guide part (52) parallel arrangement, limit baffle (6) slidingtype cover is established on guide part (52).

4. The acute osteomyelitis treatment device of claim 3, wherein: keep away from guide part (52) one of installation department (53) serves and is equipped with lug (521) that two intervals set up, be equipped with recess (522) on lug (521), be equipped with spacing ring (71) on limit dark screw rod (7), limit dark screw rod (7) are arranged in recess (522) and make spacing ring (71) rotary type joint in two between lug (521).

5. The acute osteomyelitis treatment device of claim 4, wherein: the cross section of guide part (52) is the rectangle, be equipped with rectangular hole (61) on limit baffle (6), be equipped with scale mark (523) on guide part (52).

6. The acute osteomyelitis treatment device of claim 1, wherein: the holding clamp (3) comprises a movable hopper (31) arranged on the drill bit (4) in a sleeved mode, a locking nut (32) arranged on the drill bit (4) and in threaded connection with the movable hopper (31), and when the locking nut (32) and the movable hopper (31) are screwed or unscrewed mutually, the movable hopper (31) is fixed in position or movable in position.

7. The acute osteomyelitis treatment device of claim 1, wherein: the drill bit (4) is a hollow drill bit (4), and the side wall of the drill bit (4) is provided with a plurality of strip side holes (41).

8. The acute osteomyelitis treatment device of any one of claims 1 to 7, wherein: keep away from hollow guide tube (2) the one end of toper urceolus (1) is equipped with adapter (21), it connects (22) to be equipped with the flush fluid on the lateral wall of adapter (21), detachable negative pressure that is equipped with connects (23) on adapter (21), keep away from hollow guide tube (2) the detachable outer tube (8) that is connected with of one end of adapter (21), be equipped with inner tube (9) in outer tube (8), the one end of inner tube (9) is stretched out outer tube (8), pass behind the hollow guide tube (2) and with negative pressure connects (23) and connects, the other end of inner tube (9) stretches out outer tube (8) and be equipped with a plurality of backward flow mouth (91), be equipped with a plurality of spouts (81) on the lateral wall of outer tube (8).

9. The acute osteomyelitis treatment device of claim 8, wherein: outer tube (8) with hollow guide tube (2) are through the detachable connection of hose nipple (24), hose nipple (24) with hollow guide tube (2) threaded connection, negative pressure joint (23) with adapter (21) threaded connection.

10. The acute osteomyelitis treatment device of claim 9, wherein: and a pressure gauge (25) and a control valve (26) are arranged on the flushing liquid joint (22).

Technical Field

The application belongs to the technical field of medical appliances, and particularly relates to an acute osteomyelitis treatment device.

Background

Osteomyelitis is a serious orthopedic disease, has a long course of disease, is easy to repeat the disease, and needs amputation in severe cases. The disease is an inflammatory disease caused by infection of bone marrow, cortical bone or periosteum by suppurative bacteria. It is usually found in long tubular bones, and is likely to cause sclerosing osteomyelitis and acute/chronic pyogenic osteomyelitis. The current clinically definite and effective treatment method is to perform windowing decompression, focus removal and intraoperative mid-catheter flushing drainage on pathological bone segments, wherein the traditional windowing decompression method comprises the following steps: drilling two rows of bone holes on the pathological change section by using a bone drill according to a preset scheme, then using a bone knife to cut the bone between the adjacent bone holes, and taking out the bone body between the two rows of bone holes to form a bone window. The focus can be directly debrided through the bone window, the common debridement treatment mode is to scrape the focus, then a washing drainage tube or a VSD negative pressure drainage device is arranged between the infected bone and the soft tissue for continuous washing in vitro, and the washed residual liquid is discharged to the outside of the body in a negative pressure drainage mode. Thereby realizing continuous flushing of the bone and the surrounding soft tissues of the infected part, eliminating the bacterial residue of the infected part, and reducing the recurrence probability of the focus or prolonging the recurrence period to the maximum extent. At present, the VSD flushing negative pressure drainage technology becomes a main postoperative auxiliary treatment means for treating the disease clinically, and is combined with the surgical focus bone windowing technology to achieve the purpose of treating the disease.

However, for the treatment of acute osteomyelitis, the existing bone windowing technology in clinic is mainly a common bone drill, the depth and the position of a drill hole are basically dependent on the experience of an operator, when the drill hole depth is shallow, windowing is difficult, when the drill hole is too deep, a drill bit can easily reach the opposite side normal bone, infected pus is planted in the normal bone, besides, when the drill bit drills the hole, soft tissues above a focus bone are fully stripped, the wound is large, and when an electric drill is driven into the hole, soft tissues such as peripheral muscle nerves and the like can be easily injured, so that the treatment effect is not ideal, and the operation effect is different according to different operators.

In summary, the current clinical treatment technology for acute osteomyelitis, including intraoperative bone windowing and postoperative continuous flushing drainage technologies, has the defects of different degrees, cannot well meet the treatment requirements of clinicians, and is poor in treatment effect and easy to relapse.

Disclosure of Invention

An object of the embodiment of this application is to provide an acute osteomyelitis treatment device to the drilling depth to infecting the bone among the solution prior art relies on the experience of operative employee, and the drilling depth can't accurate control, leads to the technical problem that operation difficulty and treatment are not good.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: provided is an acute osteomyelitis treatment device including: the device comprises a conical outer cylinder, a hollow guide cylinder, a holding clamp, a drill bit, a guide cylinder handle, a limiting baffle and a depth limiting screw rod; the toper urceolus sets up on the guide cylinder handle, hollow guide cylinder threaded connection in can strut in the toper urceolus, limit baffle slides and locates on the guide cylinder handle, the limit dark screw rod rotates to set up on the guide cylinder handle and with limit baffle threaded connection, the drill bit with limit dark screw rod parallel arrangement passes behind the limit baffle can stretch into to hollow guide cylinder with in the toper urceolus, embrace the card and locate on the drill bit and be located limit baffle keeps away from one side of hollow guide cylinder.

In one embodiment, the wall of the cone-shaped outer barrel at the end far away from the limit baffle is provided with at least three valve lobes arranged at intervals.

In one embodiment, the guide cylinder handle comprises a handheld portion, a guide portion and an installation portion, the guide portion is perpendicularly arranged at one end of the handheld portion, the installation portion is perpendicularly arranged at one end of the handheld portion far away from the guide portion, the installation portion and the handheld portion are arranged in parallel, the conical outer cylinder is arranged on the installation portion and arranged in parallel with the guide portion, and the limiting baffle sliding type sleeve is arranged on the guide portion.

In one embodiment, one end of the guide part, which is far away from the mounting part, is provided with two protruding blocks arranged at intervals, the protruding blocks are provided with grooves, the depth limiting screw is provided with a limiting ring, and the depth limiting screw is arranged in the grooves and enables the limiting ring to be rotatably clamped between the two protruding blocks.

In one embodiment, the cross section of the guide part is rectangular, the limiting baffle is provided with a rectangular hole, and the guide part is provided with scale marks.

In one embodiment, the holding clamp comprises a movable bucket sleeved on the drill bit and a locking nut sleeved on the drill bit and in threaded connection with the movable bucket, and when the locking nut and the movable bucket are screwed or unscrewed, the movable bucket is fixed or movable.

In one embodiment, the drill bit is a hollow drill bit, and the side wall of the drill bit is provided with a plurality of strip side holes.

In one embodiment, the one end that the toper urceolus was kept away from to hollow guide tube is equipped with the adapter, be equipped with the flush fluid on the lateral wall of adapter and connect, the detachable negative pressure that is equipped with connects on the adapter, hollow guide tube is kept away from the detachable outer tube that is connected with of one end of adapter, be equipped with the inner tube in the outer tube, the one end of inner tube is stretched out the outer tube, is passed behind the hollow guide tube and with negative pressure articulate, the other end of inner tube stretches out the outer tube and is equipped with a plurality of backward flow mouths, be equipped with a plurality of spouts on the lateral wall of outer tube.

In one embodiment, the outer pipe and the hollow guide cylinder are detachably connected through a hose connector, the hose connector is in threaded connection with the hollow guide cylinder, and the negative pressure connector is in threaded connection with the adapter.

In one embodiment, a pressure gauge and a control valve are provided on the flushing liquid connection.

The application provides an acute osteomyelitis treatment device's beneficial effect lies in: when drilling the bone, earlier utilize limit for the dark screw rod to adjust spacing between limit baffle and the armful card, this interval is the drilling depth, then make toper urceolus butt in bone drilling department, prop the toper urceolus when strutting the rotatory hollow guide cylinder and strut bone surface texture to strutting all around, rig drive bit rotates and drills, when embracing the card butt limit baffle, accomplish the drilling action, make the degree of depth accurate controllable of drilling, effectively guaranteed going on smoothly of operation and guaranteed treatment.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an acute osteomyelitis treatment device provided in an embodiment of the present application;

fig. 2 is a schematic cross-sectional structural view of an acute osteomyelitis treatment device provided in an embodiment of the present application;

FIG. 3 is an enlarged view taken at A in FIG. 2;

FIG. 4 is a schematic structural diagram of a guide cylinder handle and a tapered outer cylinder of the acute osteomyelitis treatment device provided by the embodiment of the present application;

fig. 5 is a schematic structural diagram of a limit baffle in an acute osteomyelitis treatment device according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a depth-limiting screw in an acute osteomyelitis treatment device according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a hollow guide cylinder and an adaptor in an acute osteomyelitis treatment device provided by an embodiment of the present application;

FIG. 8 is a schematic structural diagram of an irrigation fluid connector, a control valve and a pressure gauge in the acute osteomyelitis treatment device provided by the embodiment of the present application;

FIG. 9 is a schematic diagram illustrating the connection relationship between the negative pressure connector, the hose connector, the inner tube and the outer tube in the acute osteomyelitis treatment device according to the embodiment of the present application;

FIG. 10 is an enlarged view at B of FIG. 9;

fig. 11 is a schematic view illustrating an assembly structure of a clasping device and a drill in the acute osteomyelitis treatment device according to the embodiment of the present application.

Wherein, in the figures, the respective reference numerals:

1. a tapered outer barrel; 11. a leaflet; 2. a hollow guide cylinder; 21. an adapter; 211. a flushing liquid connecting pipe; 22. a flushing fluid connection; 23. a negative pressure joint; 24. a hose connector; 25. a pressure gauge; 26. a control valve; 3. clamping; 31. a movable hopper; 32. locking a nut; 4. a drill bit; 41. a side hole; 5. a guide cylinder handle; 51. a hand-held portion; 52. a guide portion; 521. a bump; 522. a groove; 523. scale lines; 53. an installation part; 6. a limit baffle; 61. a rectangular hole; 62. a threaded hole; 63. positioning holes; 7. a depth-limiting screw; 71. a limiting ring; 72. a nut; 8. an outer tube; 81. a spout; 9. an inner tube; 91. a return port; 10. a drilling machine.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1 to 7 and 11, an acute osteomyelitis treatment device provided in an embodiment of the present application will now be described. The acute osteomyelitis treatment device comprises: the device comprises a conical outer cylinder 1, a hollow guide cylinder 2, a clamp 3, a drill bit 4, a guide cylinder handle 5, a limit baffle 6 and a depth-limiting screw 7. The taper outer cylinder 1 is arranged on the guide cylinder handle 5, one end of the taper outer cylinder 1 is provided with a taper head, the hollow guide cylinder 2 is in threaded connection with the taper outer cylinder 1 and can prop open the taper head of the taper outer cylinder 1, the limit baffle 6 is arranged on the guide cylinder handle 5 in a sliding manner, the length direction of the limit baffle 6 is perpendicular to that of the taper outer cylinder 1, the sliding direction of the limit baffle 6 is parallel to that of the taper outer cylinder 1, the depth limiting screw 7 is rotationally arranged on the guide cylinder handle 5 and is in threaded connection with the limit baffle 6, the depth limiting screw 7 can drive the limit baffle 6 to slide when rotating, so as to adjust the distance between the limit baffle 6 and the taper outer cylinder 1, the drill bit 4 is arranged in parallel to the depth limiting screw 7 and can extend into the hollow guide cylinder 2 and the taper outer cylinder 1 after penetrating through the limit baffle 6, one end of the drill bit 4 can be inserted into the hollow guide cylinder 2 and the taper outer cylinder 1 and extend out to drill a bone, the other end is used for being connected with rig 10, and rig 10 drive drill bit 4 drilling, embraces the card 3 and locates on drill bit 4 and lie in limit baffle 6 and keep away from one side of hollow guide cylinder 2, before drilling, has certain interval between embrace card 3 and the limit baffle 6, and this interval is the drilling depth, and after the drilling is accomplished, embrace 3 butt of card on limit baffle 6 to stop drill bit 4 and continue to drill to the bone, realize the accurate control of drilling depth. When drilling, an operator can take the drill 10 with one hand and the guide cylinder handle 5 with the other hand, namely, one person can complete the drilling operation.

In the embodiment, when a bone is drilled, firstly, the skin of the bone part of a focus is incised, subcutaneous fascia is separated in a pause manner, a conical head of the conical outer cylinder 1 is inserted into a muscle gap until the conical head abuts against the bone surface, and the distance between the limiting baffle 6 and the holding clamp 3 is adjusted by using the depth limiting screw 7 in advance, wherein the distance is the drilling depth; rotatory hollow guide cylinder 2 struts the conical head of toper urceolus 1, so that the conical head struts bone surface tissue to all around, recycle rig 10 drive drill bit 4 and rotate and drill, drill bit 4 drills into to the bone gradually, and make embrace card 3 and be close to limit baffle 6 gradually, when embracing 3 butt limit baffle 6 of card, accomplish the drilling action, make the degree of depth of drilling accurate controllable, avoided at present clinically because of the difficult intraoperative complication that brings of the shallow size of drilling depth, the smooth of operation is gone on and the treatment is guaranteed effectively. The drill 4 is in contact with the bone, and the rest part of the drill 4 is in the conical outer cylinder 1, so that minimally invasive implantation of the drill 4 is realized, the bone surface tissue is not damaged, the stripping area of the bone surface tissue is reduced, and postoperative recovery is effectively guaranteed.

As shown in fig. 1, 2 and 4, in this embodiment, the cylinder wall of one end of the conical outer cylinder 1 away from the limit baffle 6 is provided with at least three valve leaflets 11 arranged at intervals, that is, the side wall of the conical head is provided with a plurality of slots at intervals, and the slots divide the side wall of the conical head into the plurality of valve leaflets 11, so that the conical head can be spread under the squeezing action of the hollow guide cylinder 2, and the conical head can spread bone surface tissues.

As shown in fig. 1 and 4, in the present embodiment, the guide handle 5 includes a grip portion 51, a guide portion 52, and a mounting portion 53. Wherein, the hand-held part 51 is arranged to be in a handle shape according with the holding of fingers, thereby improving the holding stability and comfort of the operator. The guide part 52 is vertically arranged at one end of the handheld part 51, the mounting part 53 is vertically arranged at one end of the guide part 52 far away from the handheld part 51, the mounting part 53 and the handheld part 51 are arranged in parallel, namely the guide part 52 and the handheld part 51 are L-shaped, the guide part 52 and the mounting part 53 are L-shaped, and the extension directions of the handheld part 51 and the mounting part 53 are opposite. The conical outer cylinder 1 is arranged on the installation part 53 and is parallel to the guide part 52, and the limit baffle 6 is sleeved on the guide part 52 in a sliding manner.

As shown in fig. 1, 4, 5 and 6, in the present embodiment, two spaced projections 521 are disposed on one end of the guide portion 52 away from the mounting portion 53, a groove 522 is disposed on the projection 521, a limiting ring 71 is disposed on the depth-limiting screw 7, and the depth-limiting screw 7 is disposed in the groove 522 and rotatably engages the limiting ring 71 between the two projections 521. The purpose that sets up like this is, when limit for depth screw 7 rotates, limit for depth screw 7 can not change in the position on guide 52, can make limit for depth screw 7 can drive limit baffle 6 and make a round trip to slide on guide 52 like this, and limit for depth screw 7 and limit baffle 6 can make its position to berth stably because of threaded connection simultaneously to guarantee that the drilling depth can not change at the drilling in-process. A nut 72 is arranged at one end of the depth-limiting screw 7 close to the limiting ring 71, and the nut 72 is convenient for an operator to screw the depth-limiting screw 7 to rotate.

As shown in fig. 1, 4, 5 and 6, in this embodiment, the cross section of the guide portion 52 is rectangular, a rectangular hole 61 is formed in the limit baffle 6, and the limit baffle 6 is sleeved on the guide portion 52 through the rectangular hole 61, so that the limit baffle 6 does not rotate in position, and the limit baffle 6 is ensured to slide back and forth only along the length direction of the guide portion 52. The limiting baffle 6 is provided with a positioning hole 63, the positioning hole 63 is used for the drill bit 4 to pass through, and the size of the positioning hole 63 is smaller than that of the clamp 3, so that the limiting baffle 6 has a blocking effect on the clamp 3. The limiting baffle 6 is provided with a threaded hole 62, the threaded hole 62 is used for being in threaded connection with the depth limiting screw 7, and the threaded hole 62 is located between the positioning hole 63 and the rectangular hole 61. In the present embodiment, as shown in fig. 4 and 5, the guide part 52 is provided with scale lines 523, and the scale lines 523 are specific numerical values for conveniently determining the drilling depth. Specifically, scale mark 523 sets up the one side that deviates from installation department 53 at guide part 52, and simultaneously, the one side that is close to scale mark 523 on the rectangular hole 61 is equipped with the opening, conveniently observes limit baffle 6 like this and instructs the position of scale mark 523, conveniently confirms the concrete numerical value of drilling depth.

As shown in fig. 2, 3 and 11, in the present embodiment, the clasping device 3 includes a movable bucket 31 disposed on the drill 4, and a locking nut 32 disposed on the drill 4 and in threaded connection with the movable bucket 31, wherein when the locking nut 32 is screwed or unscrewed with the movable bucket 31, the movable bucket 31 is fixed or movable. The movable bucket 31 can move on the drill bit 4 under normal conditions, and when the locking nut 32 is screwed with the movable bucket 31, the movable bucket 31 can be tightly attached to the drill bit 4, so that the position is fixed, and the distance between the clamp 3 and the limit baffle 6 can be adjusted.

In the present embodiment, as shown in fig. 2 and 11, the drill 4 is a hollow drill, so that the drill 4 can automatically collect the bone fragments broken by the drill 4. The side wall of the drill 4 is provided with a plurality of elongated side holes 41 so that the bone fragments in the drill 4 can be easily removed.

As shown in fig. 1, fig. 2, fig. 7, fig. 8, fig. 9 and fig. 10, in this embodiment, an adapter 21 is disposed at one end of the hollow guide cylinder 2 away from the conical outer cylinder 1, a rinse liquid connection pipe 211 is disposed on a side wall of the adapter 21, the rinse liquid connection pipe 211 is detachably connected to a rinse liquid connector 22, and the rinse liquid connector 22 is used for connecting a rinse liquid supply device such as a water tank and a pressurized water pump. One end of the adapter 21 far away from the hollow guide cylinder 2 is detachably connected with a negative pressure joint 23, and the negative pressure joint 23 is used for connecting a suction device such as a suction pump. Keep away from adapter 21 at hollow guide 2 one end detachable be connected with outer tube 8, be equipped with inner tube 9 in the outer tube 8, the length of inner tube 9 is longer than the length of outer tube 8, the one end of inner tube 9 stretches out outer tube 8, pass behind the hollow guide 2 and be connected with negative pressure joint 23, the other end of inner tube 9 stretches out outer tube 8 and is equipped with a plurality of backward flow mouth 91, be equipped with a plurality of spouts 81 on the lateral wall of outer tube 8, the clearance has between outer tube 8 and the inner tube 9, this clearance is used for supplying the flush fluid circulation, and spout 81 blowout, thereby wash inside the bone, the inside suction liquid circulation that is used for of inner tube 9, backward flow mouth 91 is used for sucking the flush fluid after will washing, then carry out inner tube 9 and discharge. The outer tube 8 is a flexible tube. The plurality of nozzles 81 and the plurality of return ports 91 are circumferentially distributed.

In this embodiment, after the drill 4 drills a hole in a bone, the drill 4 and the drilling machine 10 are removed, the negative pressure joint 23, the inner tube 9, the outer tube 8 and the flushing fluid joint 22 are installed, the negative pressure joint 23 is connected with a suction device, the flushing fluid joint 22 is connected with a flushing fluid supply device, one end of the inner tube 9 with a backflow port 91 is inserted into the bone, the outer tube 8 is placed in the bone, the flushing fluid is introduced through the flushing fluid supply device, the flushing fluid enters the adapter 21 through the flushing fluid joint 22, then enters the outer tube 8 through the hollow guide cylinder 2, finally only the nozzle 81 is used for flushing a focus in the bone, the suction device works to provide negative pressure, the flushing fluid enters the inner tube 9 through the backflow port 91 after flushing, then flows into the suction device through the negative pressure joint 23 for collection, and the backflow ports 91 and the nozzles 81 are circumferentially distributed, thus, the bone is effectively and multi-directionally washed and sucked, the blockage is not easy to occur, the cleaning effect on the interior of the bone is ensured, and the postoperative recovery is convenient.

Because parts such as drill bit 4, negative pressure joint 23, inner tube 9, outer tube 8 and flush fluid joint 22 all are demountable installation to make this acute osteomyelitis treatment device can carry out accurate drilling to the bone, can realize the high-efficient washing of postoperative again.

As shown in fig. 7, 9 and 10, in the present embodiment, the outer tube 8 and the hollow guide cylinder 2 are detachably connected through a hose connector 24, specifically, the hose connector 24 is in threaded connection with the hollow guide cylinder 2, and the negative pressure connector 23 is in threaded connection with the adapter 21, so that the installation and the disassembly are convenient, and the sealing performance during the installation is ensured.

As shown in fig. 8, a pressure gauge 25 and a control valve 26 are provided on the flushing liquid joint 22, the pressure gauge 25 is used for controlling the pressure of the flushing liquid, and the control valve 26 is used for controlling the flow rate of the flushing liquid, so that the tissue in the bone is prevented from being damaged by the excessive impact of the flushing liquid.

In this embodiment, this acute osteomyelitis treatment device simple structure, convenient to use just possess spacing drilling bone windowing function, and it can realize in the art, the postoperative is high-efficient washes and difficult jam simultaneously. Toper urceolus 1 and limit for depth structure (limit for depth screw 7, limit baffle 6 and embrace the card 3), the flexible direction is punched, accurate advance dark drill bit 4 operation in the supplementary art person's art that can be fine, and then realizes safe region drilling, accurate limit for depth and squeezes into the function of sclerotin degree of depth to reduce the operation degree of difficulty, make the intraoperative bone windowing operation technique standardized.

In addition, spout 81 that is the circumference on the outer tube 8 distributes and the backward flow mouth 91 that is the circumference on the inner tube 9 distributes, the infection bone and its surrounding soft tissue multi-angle, the omnidirectional of infecting the chamber have been realized washing, and solved the washing that present clinical used washing technique exists thoroughly, the infection remains and wash the problem that the in-process flushing pipe, the drainage tube mouth blockked up, and simultaneously, outer tube 8 and inner tube 9 all detachable connection, the convenient mediation, thereby just can relieve the backward flow rapidly when realizing high-efficient washing and not smooth problem, by soft tissue or wash necrotic material jam scheduling problem. In conclusion, the device is based on the actual clinical problems existing in the prior osteomyelitis operation and postoperative treatment, and is designed to be used for minimally invasive bone windowing, precise limiting and punching, intraoperative catheter placement and postoperative flushing drainage in the operation, and the minimally invasive treatment of the osteomyelitis is completed together by closely matching the minimally invasive bone windowing, the precise limiting and punching, intraoperative catheter placement and the postoperative flushing drainage, so that a new effective treatment scheme is provided for the clinical osteomyelitis treatment.

This acute osteomyelitis treatment device is in the overall operation, can accomplish the wicresoft to osteomyelitis, accurate depth-limiting drilling, accomplish the goal of having in messenger's art, and do not cause the destruction to other normal sclerotins, the device opens the structure with the wicresoft ingeniously and combines together with accurate positioning structure, the complication of the uncertainty that the technique brought is opened to the commonly used bone at present clinically has been solved, improve the bone effect of opening the window greatly, and wash focus tissue and inject into antibiotic medicine with taking advantage of the situation after the drilling is accomplished, with the operation of continuity, the design of integration, bone cavity pus in the operation is effectively clear away, the physical and mental misery that long-time operation brought for the patient has been reduced simultaneously.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.