CN213283119U

CN213283119U - Planing tool bit with memory function

Info

Publication number: CN213283119U
Application number: CN202022078605.6U
Authority: CN
Inventors: 陆信
Original assignee: Anhui Beikebang Biotechnology Co ltd
Current assignee: Anhui Beikebang Biotechnology Co ltd
Priority date: 2020-09-21
Filing date: 2020-09-21
Publication date: 2021-05-28
Anticipated expiration: 2030-09-21

Abstract

The utility model relates to a planing tool bit with memory function, including outer cutter arbor, outer handle of a knife, rubber circle, interior cutter arbor and interior cutter arbor, outer handle of a knife, rubber circle, interior cutter arbor and interior cutter arbor are the hollow circular cylinder structure, the end of interior handle of a knife is the blind end, outer cutter arbor intercommunication is installed on outer handle of a knife, interior cutter arbor intercommunication is installed on interior handle of a knife, the mouth of a river of cutter arbor in the intercommunication is seted up to the side of interior handle of a knife, rubber circle cover is established on interior cutter arbor, interior cutter arbor passes the inside that outer cutter arbor inserted outer cutter arbor, outer cutter arbor includes outer cutter body and outer cutter head, outer cutter body is made for nickel titanium alloy material, the tip indent cutting of outer cutter body forms outer tool bit. The utility model discloses can solve the problem that the planing tool bit can't pass the working channel of small-size in the insertion process among the arthroscopic operation, reduce the notched size of skin in the art, make things convenient for the better healing of postoperative, the wearability is good, and the live time is longer.

Description

Planing tool bit with memory function

Technical Field

The utility model relates to the field of medical equipment, specifically relate to a planing tool bit with memory function.

Background

Along with the development of sports medical technology, arthroscopic surgery is more and more, and has become one of the most common operations in orthopedic surgery, and the planing tool bit has irreplaceable effect as the essential apparatus of arthroscopic surgery. The planing tool bit is divided into a straight type and a bent type, and the bent type planing tool is mainly used for parts which cannot be reached by the straight type planing tool on the inner side of the joint cavity. Because the straight shape work general of arthroscopic operation is very narrow, the conventional bent shape planer tool can not directly pass through, and only a thicker working channel can be adopted, the wound area needs to be enlarged, and the recovery time of a patient is prolonged.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art because the straight shape work of arthroscopic surgery leads to very narrowly, and conventional bent shape planer tool can't directly pass, can only adopt bigger working channel more, need enlarge wound area, has increased patient's recovery time's defect, provides a planing tool bit with memory function.

In order to solve the technical problem, the utility model provides a following technical scheme: a planing tool bit with a memory function comprises an outer tool bar, an outer tool shank, a rubber ring, an inner tool bar and an inner tool shank, wherein the outer tool bar, the outer tool shank, the rubber ring, the inner tool bar and the inner tool shank are all of a hollow cylinder structure, the tail end of the inner tool shank is a closed end, the outer tool bar is communicated and installed on the outer tool shank, the inner tool bar is communicated and installed on the inner tool shank, a water gap communicated with the inner tool bar is formed in the side surface of the inner tool shank, the rubber ring is sleeved on the inner tool bar, the inner tool bar penetrates through the outer tool shank and is inserted into the outer tool bar, the outer tool bar comprises an outer tool body and an outer tool head, the outer tool body is made of a nickel-titanium alloy material, the end part of the outer tool body is recessed and cut to form the outer tool head, the inner tool bar comprises an inner tool body, a corrugated pipe and the inner tool head, the inner, the bellows body coupling interior tool bit, interior tool bit inserts outer tool bit department and interior tool bit is the same with outer tool bit's structure.

Furthermore, the outer cutter handle and the inner cutter handle are tightly pressed on two sides of the rubber ring.

Furthermore, the cutting edges of the outer cutter head and the inner cutter head are serrated.

Further, the memory state of the outer cutter body is a bending shape.

Compared with the prior art, the utility model beneficial effect who has is: the utility model provides a planing tool bit with memory function, non-operating condition is straight shape, and operating condition becomes the bending, can solve the problem that planing tool bit can't pass small-size working channel in the insertion process in the arthroscopic operation, has reduced the size of skin incision in the art, makes things convenient for the better healing of postoperative, because of the nickel titanium memory alloy material of planing tool pole portion adoption, the wearability is good, compares in ordinary stainless steel material stability better, and the live time is longer.

Drawings

Fig. 1 is a schematic view of a separating structure of a shaving head with memory function according to the present invention;

fig. 2 is a schematic view illustrating a structure of the planing tool bit with a memory function in which an outer tool bar and an inner tool bar are disassembled;

fig. 3 is a schematic view of the outer cutter bar structure of the planing tool bit with memory function of the present invention;

fig. 4 is a structural diagram of the memory state of the outer cutter body of the planing tool bit with memory function of the present invention;

fig. 5 is a schematic view of the inner cutter bar structure of the planing tool bit with memory function of the present invention;

FIG. 6 is a schematic view of the structure of the planing tool bit with memory function of the present invention after being assembled;

fig. 7 is a schematic view of the working structure of the planing tool bit with memory function after combination.

The reference numbers in the figures are: 1-an outer cutter bar; 101-an outer cutter body; 102-an outer cutter head; 2-outer knife handle; 3-rubber ring; 4-inner cutter bar; 401-inner cutter body; 402-a bellows; 403-inner cutter head; 5-inner knife handle; 6-water gap.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention 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 invention and are not intended to limit the invention.

Referring to fig. 1 to 7, it can be seen that: a planing tool bit with a memory function comprises an outer tool bar 1, an outer tool shank 2, a rubber ring 3, an inner tool bar 4 and an inner tool shank 5, wherein the outer tool bar 1, the outer tool shank 2, the rubber ring 3, the inner tool bar 4 and the inner tool shank 5 are all of a hollow cylinder structure, the tail end of the inner tool shank 5 is a closed end, the outer tool bar 1 is communicated and installed on the outer tool shank 2, the inner tool bar 4 is communicated and installed on the inner tool shank 5, a water gap 6 communicated with the inner tool bar 4 is formed in the side face of the inner tool shank 5, the rubber ring 3 is sleeved on the inner tool bar 4, the inner tool bar 4 penetrates through the outer tool shank 2 and is inserted into the outer tool bar 1, the outer tool bar 1 comprises an outer tool body 101 and an outer tool head 102, the outer tool body 101 is made of a nickel-titanium alloy material, the end of the outer tool body 101 is recessed to form the outer tool head 102, the inner tool bar 4 comprises an inner tool, the inner cutter body 401, the corrugated pipe 402 and the inner cutter head 403 are connected through laser welding, the inner cutter body 401 is integrally connected with the corrugated pipe 402, the corrugated pipe 402 is integrally connected with the inner cutter head 403, the inner cutter head 403 is inserted into the outer cutter head 102, and the inner cutter head 403 and the outer cutter head 102 are identical in structure.

The outer knife handle 2 and the inner knife handle 5 are tightly pressed on two sides of the rubber ring 3, and the buffering and sealing effects are achieved.

The cutting edges of the outer cutter head 102 and the inner cutter head 403 are serrated, which is convenient for operation planing.

The memory state of the outer cutter body 101 is a bent shape, so that the outer cutter body can be conveniently planed after entering a human body.

The utility model discloses a principle and advantage: according to the arrangement and combination mode of fig. 1, the inner cutter head 403 is inserted into the outer cutter head 102, the outer cutter handle 2 and the inner cutter handle 5 are fixed on both sides of the rubber ring 3, wherein the outer cutter body 101 is made of nickel-titanium alloy material in a memory state, the rod part is in a straight state in an initial state, the memory state is in a bent state, as shown in fig. 4, the recovery temperature is close to the temperature of a human body, the deformation temperature of the memory state is 25 ℃, the outer cutter body 101 is in a straight shape before being inserted into the human body, the outer cutter body 101 can conveniently enter a narrow working channel, after being inserted into the human body, the temperature of the outer cutter body 101 rises and gradually recovers to the bent memory state due to the conduction action of the temperature of the human body, the outer cutter head 102 has a cutting edge, the middle part of the inner cutter rod 4 is designed by adopting a flexible corrugated pipe 402 structure and can be bent in any direction, the inner cutter body 401, the corrugated pipe, when in use, water passes through the middle, soft tissues cut off in an operation can be pumped out of a human body through the water gap 6, the outer cutter handle 2 is connected with the planing equipment to play a role in fixing, the rubber ring 3 is arranged between the outer cutter handle 2 and the planing equipment to play a role in sealing, the inner cutter handle 5 is connected with the rotating part of the planing equipment to drive the inner cutter bar 4 to rotate at a high speed, and the operation is planed through the relative rotation of the outer cutter head 102 and the inner cutter head 403;

the method comprises the following specific steps:

1) the planing tool bit of the patent is connected with planing equipment;

2) the planing tool bit in the initial state enters a lesion part of a human body through the working channel, and the outer tool body 101 in contact with the human body gradually changes into a bending state along with the conduction rise of temperature;

3) starting the rotation function of the planing equipment to drive the planing tool bit to rotate to realize the planing treatment of the lesion part;

4) after the planing is accomplished, increase the water injection speed of articular intracavity and the speed of drawing water of planing tool bit, the cooling effect through rivers loses initial condition with outer guide arm and becomes soft, then withdraws from the passageway with the tool bit that becomes soft, prevents to pull out the in-process and causes the unnecessary damage.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a planing tool bit with memory function, includes outer cutter arbor (1), outer handle of a knife (2), rubber circle (3), interior cutter arbor (4) and interior handle of a knife (5), its characterized in that: outer cutter arbor (1), outer handle of a knife (2), rubber circle (3), interior cutter arbor (4) and interior handle of a knife (5) are the hollow cylinder structure, the end of interior handle of a knife (5) is the blind end, outer cutter arbor (1) intercommunication is installed on outer handle of a knife (2), interior cutter arbor (4) intercommunication is installed on interior handle of a knife (5), mouth of a river (6) of cutter arbor (4) in the intercommunication are seted up to the side of interior handle of a knife (5), rubber circle (3) cover is established on interior cutter arbor (4), interior cutter arbor (4) pass outer handle of a knife (2) and insert the inside of outer cutter arbor (1), outer cutter arbor (1) is including outer cutter body (101) and outer cutter head (102), outer cutter body (101) are made for nickel-titanium alloy material, the tip indent cutting of outer cutter body (101) forms outer cutter head (102), interior cutter arbor (4) are including inner cutter body (401), The corrugated pipe comprises a corrugated pipe (402) and an inner cutter head (403), the inner cutter body (401), the corrugated pipe (402) and the inner cutter head (403) are connected through laser welding, the inner cutter body (401) is integrally connected with the corrugated pipe (402), the corrugated pipe (402) is integrally connected with the inner cutter head (403), the inner cutter head (403) is inserted into the outer cutter head (102), and the inner cutter head (403) and the outer cutter head (102) are identical in structure.

2. The planing tool head with memory function according to claim 1, characterized in that the outer shank (2) and the inner shank (5) are pressed against both sides of the rubber ring (3).

3. A memory functioning planing tool bit as in claim 1, wherein the cutting edges of the outer (102) and inner (403) bits are serrated.

4. A shaving head with memory function according to claim 1, characterized in that the memory state of the outer cutter body (101) is a curved shape.