CN214434383U

CN214434383U - Bone focus is clear away and washing unit

Info

Publication number: CN214434383U
Application number: CN202023008003.XU
Authority: CN
Inventors: 于晓巍; 张长青; 郭宸芸; 吴天一; 单浩杰; 邱松炜
Original assignee: Shanghai Guchuang Technology Co ltd; Shanghai Sixth Peoples Hospital
Current assignee: Shanghai Guchuang Technology Co ltd; Shanghai Sixth Peoples Hospital
Priority date: 2020-12-15
Filing date: 2020-12-15
Publication date: 2021-10-22
Anticipated expiration: 2030-12-15

Abstract

The utility model discloses a bone focus removing and flushing device, which comprises a focus removing component, a collecting device and a power mechanism, wherein the focus removing component comprises a drill bit, the drill bit is of a hollow structure, and a plurality of vertically arranged blades are arranged on the outer end surface of the drill bit at intervals; the bottom surface of the drill bit is fixed at one end of a rotating shaft, the other end of the rotating shaft is connected with a power mechanism, a through hole communicated with a hollow structure of the drill bit is arranged in the long axis direction of the rotating shaft, a spiral blade is arranged on the outer circle of the through hole, the rotating shaft is sleeved in a collecting device, and a section of the spiral blade is exposed at the opening end of the collecting device close to one end of the drill bit; the tail end of the collecting device is connected with the power mechanism, and the side wall of the tail end of the collecting device is provided with a taking-out port; the power mechanism is provided with a water inlet and a water outlet, the water inlet is communicated in the through hole of the rotating shaft, and the water outlet is communicated with the tail end of the collecting device. The device has reasonable structural design, simple operation, no need of replacing the device, full positive pressure flushing, thorough debridement and the function of once completing focus clearing.

Description

Bone focus is clear away and washing unit

Technical Field

The utility model relates to a washing unit, concretely relates to bone focus is clear away and washing unit.

Background

Bone lesions such as osteomyelitis, osteonecrosis, bone cysts, benign bone tumors, and the like all involve surgical operations requiring removal of lesions. Once the focus is formed, local tissue ischemia is easily caused, and a mechanical structure of a trabecular bone is easily damaged, so that local chronic pain and limb dysfunction are caused, great pain is caused to a patient, and the life quality of the patient is influenced. The disease is difficult to self-heal, and the focus is required to be thoroughly cleared by an operation when the disease develops to a certain stage, so that a space is made for the regeneration of new bones of an organism.

The published literature shows that a large amount of normal saline flushing can effectively reduce the incidence rate of bone infection and effectively clean osteomyelitis, and a device for simultaneously cleaning osteomyelitis, pulse pressure flushing and necrotic focus cleaning is clinically lacked; clinically, the focus of early femoral head necrosis is also removed, and a satisfactory bone focus removing device is also lacked for some cystic lesions or benign tumors.

For the above diseases, clinically, curettage of the focus is usually performed by using curettage spoons and the like, intraoperative positioning is performed by using a C-arm machine, and curettage of the focus is performed according to experience and hand feeling; scraping and washing are carried out in turn, the efficiency is low, meanwhile, the bone focuses at deeper parts cannot be effectively washed, necrotic tissues, germs or tumor tissues are remained, and the treatment effect is influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art, the utility model aims to provide a bone focus is clear away and washing unit. In order to achieve the above object, the present invention provides the following technical solutions:

a bone focus removing and flushing device comprises a focus removing assembly, a collecting device and a power mechanism, wherein the focus removing assembly comprises a drill bit, the drill bit is of a hollow structure, and a plurality of vertically-arranged blades are arranged on the outer end face of the drill bit at intervals; the bottom surface of the drill bit is fixed at one end of a rotating shaft, the other end of the rotating shaft is connected with a power mechanism, a through hole communicated with a hollow structure of the drill bit is formed in the long axis direction of the rotating shaft, a spiral blade is arranged on the outer ring of the rotating shaft, the rotating shaft is sleeved in a collecting device, and a section of the spiral blade is exposed at the opening end of the collecting device close to one end of the drill bit; the tail end of the collecting device is connected with the power mechanism, and a taking-out port is formed in the side wall of the tail end of the collecting device; the power mechanism is provided with a water inlet and a water outlet, the water inlet is communicated with the through hole of the rotating shaft, and the water outlet is communicated with the tail end of the collecting device.

Further, the drill bit is of a conical structure, and the top end of the drill bit is blunt.

Further, the width of the blade is narrower closer to the drill bit tip, and the cutting direction of the blade is consistent with the spiral direction of the spiral blade.

Furthermore, the collecting device is made of metal, one end of the collecting device, which is close to the drill bit, is of a cylindrical structure, and the tail end of the collecting device is of a spherical structure.

Furthermore, the water inlet is externally connected with a flushing fluid bag, and the water outlet is externally connected with a negative pressure bottle.

Has the advantages that: the utility model provides a bone focus is clear away and washing unit, it has following advantage:

1. the blunt drill bit can not break through the healthy bone, and the possibility of damaging the femoral head cartilage surface can be reduced, so that the catastrophic consequences can be avoided; the blunt drill bit can not break through cortical bone, so that focus removal is limited in bone, the possibility of excessive reduction of mechanical strength after operation is reduced, and the possibility of soft tissue transfer is avoided;

2. the design of the helical blade is similar to that of a mining device, the focus and bone fragments can be removed through slow rotation, and finally solid-liquid separation is carried out during collection, so that water outlet holes can be effectively prevented from being blocked, liquid is prevented from overflowing from other places in the surgical field, and the possibility of surgical pollution is prevented;

3. the device has reasonable structural design and simple operation, does not need to be replaced, fully washes under positive pressure, has thorough debridement and has the function of clearing focus at one time;

4. the backflow is accurate, the liquid is reduced from flowing to the outer side of the wound, and the infection caused by the wet penetration of the surgical drape is avoided;

5. the focus collection is simple and sufficient, and can be used for microbiological and pathological detection to obtain the scientific basis for treatment.

Therefore, the device is widely applicable to the focus removal of bone diseases such as chronic osteomyelitis, femoral head necrosis, bone cyst, benign bone tumor and the like.

Drawings

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

In the figure: 1. a drill bit; 2. a blade; 3. a helical blade; 4. a collection device; 5. a water inlet; 6. a take-out port; 7. a power mechanism; 8. a water outlet; 9. a rotating shaft.

Detailed Description

The present invention has been described in detail with reference to the specific embodiments, but the present invention is only by way of example and is not limited to the specific embodiments described above. Any equivalent modifications and substitutions to the disclosed embodiments are within the scope of the present invention as those skilled in the art will recognize. Accordingly, variations and modifications in equivalents may be made without departing from the spirit and scope of the invention, which is intended to be covered by the following claims.

A bone focus is clear away and washing unit, the apparatus includes focus clears away the assembly, collecting device 4 and actuating unit 7, the said focus clears away the assembly and includes the bit 1, the said bit 1 is a hollow structure, the outer end of the said bit 1 has multiple blades 2 arranged vertically at intervals; the bottom surface of the drill bit 1 is fixed at one end of a rotating shaft 9, the other end of the rotating shaft 9 is connected with a power mechanism 7, a through hole communicated with a hollow structure of the drill bit is formed in the long axis direction of the rotating shaft 9, a spiral blade 3 is arranged on the outer ring of the rotating shaft 9, the rotating shaft 9 is sleeved in a collecting device 4, and one section of the spiral blade is exposed out of the opening end of the collecting device close to one end of the drill bit 1.

The tail end of the collecting device 4 is connected with a power mechanism 7, and a taking-out port 6 is formed in the side wall of the tail end of the collecting device 4; the power mechanism 7 is provided with a water inlet 5 and a water outlet 8, the water inlet 5 is communicated with the through hole of the rotating shaft 9, and the water outlet 8 is communicated with the tail end of the collecting device 4. The water inlet 5 is externally connected with an irrigation solution bag, and the water outlet 8 is externally connected with a negative pressure bottle. The drill bit 1 is of a conical structure, and the top end of the drill bit is blunt.

The width of the blade 2 is narrower towards the top end of the drill bit, so that the bone surface penetration caused by extrusion during focus removal can be reduced, and flushing fluid can also flow towards the near side through the blade groove; the cutting direction of the blade is consistent with the spiral direction of the spiral blade, and the ground bone fragments and the focus can be moved to the near side by clockwise rotation and are contained in the collecting device through the opening end of the collecting device. The collecting device 4 is made of metal, one end of the collecting device close to the drill bit is of a cylindrical structure, the tail end of the collecting device is of a spherical structure, and bone fragments and focuses removed from focuses can be taken out from the taking-out port 6 and used for microbiological or pathological detection. The collecting device 4 is a transparent container, and the diameter of the cylinder is between 5 and 10 cm; the length of the cylinder is between 10 and 30 cm.

The power mechanism 4 has three power functions: 1. providing power for the rotation of the drill bit and controlling the rotation speed to obtain the effect of recovering bone lesions and bone fragments; 2. the negative pressure suction device can suck back the liquid flushed into the bone cavity to achieve the purpose of debridement, and water is fed through the water inlet 5 and the redundant liquid is sucked out through the water outlet 8 by adopting negative pressure suction; 3. is a positive pressure pulse device and is connected with the water inlet 5.

The use method of the device of the utility model is as follows:

1. drilling a guide pin, and positioning a focus under a C-arm machine;

2. using an annular hollow drill to take out a bone column (which can be used for later-stage in-situ placement or bone grafting) to form a bone channel;

3. the device is placed along the bone path, and the blunt drill bit is positioned correctly by the perspective of the C-arm machine;

4. the water outlet is connected into the negative pressure bottle, the water inlet is connected to the flushing fluid bag, the power mechanism is started, positive pressure can be achieved to extrude flushing fluid into a focus, the flushing fluid flows back to the transparent container through the blade and the helical blade of the blunt drill, liquid flows out of the water outlet, and the bone fragments and the focus which are flushed can be extruded into the container through clockwise rotation of the rotary blade and taken out through the taking-out opening.

Claims

1. The bone focus removing and flushing device is characterized by comprising a focus removing assembly, a collecting device and a power mechanism, wherein the focus removing assembly comprises a drill bit, the drill bit is of a hollow structure, and a plurality of vertically-arranged blades are arranged on the outer end face of the drill bit at intervals; the bottom surface of the drill bit is fixed at one end of a rotating shaft, the other end of the rotating shaft is connected with a power mechanism, a through hole communicated with a hollow structure of the drill bit is formed in the long axis direction of the rotating shaft, a spiral blade is arranged on the outer ring of the rotating shaft, the rotating shaft is sleeved in a collecting device, and a section of the spiral blade is exposed at the opening end of the collecting device close to one end of the drill bit; the tail end of the collecting device is connected with the power mechanism, and a taking-out port is formed in the side wall of the tail end of the collecting device; the power mechanism is provided with a water inlet and a water outlet, the water inlet is communicated with the through hole of the rotating shaft, and the water outlet is communicated with the tail end of the collecting device.

2. The bone lesion removal and irrigation device of claim 1, wherein the drill is a cone-shaped structure with a blunt tip.

3. The bone lesion removing and irrigating device according to claim 1, wherein the blade has a width that is narrower toward the drill tip, and the cutting direction of the blade is aligned with the spiral direction of the spiral blade.

4. The bone lesion removing and irrigating device of claim 1, wherein the collecting device is made of metal, and has a cylindrical structure at one end near the drill bit and a spherical structure at the end.

5. The bone lesion removing and irrigating device according to claim 1, wherein the water inlet is externally connected to an irrigating solution bag, and the water outlet is externally connected to a negative pressure bottle.