CN216759981U

CN216759981U - Skin preparation knife capable of automatically collecting hair

Info

Publication number: CN216759981U
Application number: CN202122126733.8U
Authority: CN
Inventors: 徐婕; 姜秋平; 魏骊华; 毛婷; 王荔
Original assignee: Taizhou Peoples Hospital
Current assignee: Taizhou Peoples Hospital
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2022-06-17
Anticipated expiration: 2031-09-03

Abstract

The utility model relates to a skin preparation knife capable of automatically collecting hair, which comprises a knife handle, a knife holder and a blade, wherein the knife handle comprises a front handle body and a rear handle body, the knife holder is integrally fixed at the front end of the front handle body, a negative pressure adsorption cavity is arranged at the position, below the blade, in the knife holder, a suction channel communicated with the negative pressure adsorption cavity is arranged in the knife holder and the front handle body, the rear handle body is in threaded sealing connection with the front handle body, a cavity is arranged in the rear handle body, a hair collection cover is arranged at the upper part in the cavity, the hair collection cover is a hollow cylinder, and a hair shunting cone protruding inwards is arranged at the bottom of the hair collection cover; the lower part in the cavity is provided with a negative pressure fan and a power supply, the fan blade of the negative pressure fan is positioned below the hair collecting cover, the motor of the negative pressure fan is positioned below the fan blade, the fan blade is fixedly arranged on the output shaft of the motor, the motor is connected with the power supply through a switch, and the side wall of the rear handle body around the motor is provided with an air outlet. The utility model has the advantages of ingenious structure, reasonable design and convenient use.

Description

Skin preparation knife capable of automatically collecting hair

Technical Field

The utility model relates to a skin preparation knife, in particular to a skin preparation knife capable of automatically collecting hair, and belongs to the technical field of medical instruments.

Background

The skin preparation knife is one of the common instruments in surgical operation, and the main purpose of the skin preparation knife is to scrape the hair of the human body at the operation part so as to facilitate the smooth operation and avoid infection. The conventional skin preparation knife mainly comprises a knife handle, a knife seat and a blade, wherein the knife seat is arranged at the front end of the knife handle, the blade is fixed on the knife seat, and when the skin preparation knife is used, medical staff hold the knife handle and shave hair by using the blade.

After the existing skin preparation knife which is commonly used in clinic shaves the hair, part of the hair and some scurf can be dispersed in the surrounding environment along with air or some airflow due to the light weight, which can affect the cleanliness of the operating room environment and increase the infection probability of the patient in the operation. In order to overcome the defects, a negative pressure design is adopted for collecting hair in the existing electric skin preparation knife, but the electric skin preparation knife is high in cost and generally needs to be reused, the structure of a knife head of the electric skin preparation knife is generally complex, and the electric skin preparation knife is difficult to clean by adopting a cleaning brush and is easy to generate cross contamination. In addition, the hair debris is accumulated inside the skin preparation knife, so that bacteria are easy to breed, and the risk of infection of a patient is increased.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provides the skin preparation knife which is ingenious in structure, reasonable in design and convenient to use and can automatically collect hairs.

According to the technical scheme provided by the utility model: the skin preparation knife capable of automatically collecting hair comprises a knife handle, a knife holder and a blade, wherein the knife holder is arranged at the front end of the knife handle, and the blade is fixed on the knife holder; the method is characterized in that: the cutter handle comprises a front handle body and a rear handle body, the cutter holder is integrally fixed at the front end of the front handle body, a negative pressure adsorption cavity is arranged at the position, below the blade, inside the cutter holder, a suction channel communicated with the negative pressure adsorption cavity is arranged inside the cutter holder and the front handle body, the rear handle body is in threaded sealing connection with the front handle body, a cavity is arranged inside the rear handle body, a hair collection cover is arranged at the upper part inside the cavity, the hair collection cover is a hollow cylinder, and a hair shunting cone protruding inwards is arranged at the bottom of the hair collection cover; negative-pressure air fan and power are installed to the lower part in the cavity, negative-pressure air fan's flabellum is located the below that the cover was collected to the hair, and negative-pressure air fan's motor is located the flabellum below, and flabellum fixed mounting is on the output shaft of motor, and the motor is connected with the power through the switch, is equipped with the air exit on the back handle body lateral wall around the motor.

As a further improvement of the utility model, the rear end of the front handle body is provided with an internal thread interface communicated with the suction channel; the hair is collected and is covered the upper end and be equipped with the external screw thread joint with female connection match, and hair is collected and covers and front handle body threaded connection.

As a further improvement of the utility model, the blades are three, the three blades are arranged in parallel, and the included angle between the plane of the blades and the shaving direction is more than 60 degrees and less than 90 degrees.

As a further improvement of the utility model, the power supply adopts a replaceable battery, a battery cavity with a tail cover is arranged at the lower part of the rear handle body, the battery is arranged in the battery cavity, and the switch is arranged on the tail cover.

As a further improvement of the utility model, the inner surface of the hair collecting cover is provided with a hair filtering and adsorbing layer.

As a further improvement of the utility model, the hair filtering and adsorbing layer is sponge or non-woven fabric.

As a further improvement of the utility model, a hair comb is arranged on the cutter holder in front of the blade edge.

Compared with the prior art, the utility model has the following advantages:

1) the utility model has the advantages of ingenious structure, reasonable design and convenient use, the negative pressure adsorption cavity is arranged below the blade and is communicated with the hair collection cover in the cavity through the suction channel, the negative pressure fan is arranged below the hair collection cover, the negative pressure fan forms negative pressure suction force during working, and skin preparation products shaved by the skin preparation knife are sucked into the hair collection cover under the action of negative pressure, so that the skin preparation products are effectively prevented from flying to pollute the surrounding environment, and the cleanness of an operation room is ensured.

2) The handle of a knife in this embodiment comprises preceding handle body and back handle body two parts and can freely dismantle, and the part setting that the cost is higher relatively is internal at the back handle, and back handle body just can reuse like this, and only need change low cost's first half part can when different patients use, can enough effectively avoid cross infection, is favorable to reducing medical cost again, alleviates patient's burden.

Drawings

FIG. 1 is a front view of the structure of an embodiment of the present invention.

Fig. 2 is a side sectional view of a structure of an embodiment of the present invention.

FIG. 3 is a top view of a structure according to an embodiment of the present invention.

Description of reference numerals: 1-handle of a knife, 1.1-front handle body, 1.2-back handle body, 1.2 a-air outlet, 1.3-tail cover, 2-tool apron, 3-blade, 4-negative pressure adsorption cavity, 5-suction channel, 6-cavity, 7-hair collection cover, 8-hair shunting cone, 9-negative pressure blower, 9.1-flabellum, 9.2-motor, 10-power, 11-switch, 12-hair filtration adsorption layer, 13-hair comb.

Detailed Description

The utility model is further illustrated by the following specific figures and examples.

As shown in fig. 1 to 3, the embodiment discloses a skin preparation knife capable of automatically collecting hair, which comprises a knife handle 1, a knife holder 2 and a blade 3, wherein the knife holder 2 is arranged at the front end of the knife handle 1, and the blade 3 is fixed on the knife holder 2; the knife handle 1 comprises a front handle body 1.1 and a rear handle body 1.2, the knife holder 2 is integrally fixed at the front end of the front handle body 1.1, a negative pressure adsorption cavity 4 is arranged at a position, below the blade 3, in the knife holder 2, a suction channel 5 communicated with the negative pressure adsorption cavity 4 is arranged in the knife holder 2 and the front handle body 1.1, the rear handle body 1.2 is in threaded sealing connection with the front handle body 1.1, a cavity 6 is arranged in the rear handle body 1.2, a hair collection cover 7 is arranged at the upper part in the cavity 6, the hair collection cover 7 is a hollow cylinder, and a hair shunting cone 8 protruding inwards is arranged at the bottom of the hair collection cover 7; negative-pressure air fan 9 and power 10 are installed to the lower part in the cavity 6, negative-pressure air fan 9's flabellum 9.1 is located the below that the cover 7 was collected to the hair, and negative-pressure air fan 9's motor 9.2 is located flabellum 9.1 below, and flabellum 9.1 fixed mounting is on motor 9.2's output shaft, and motor 9.2 is connected with power 10 through switch 11, is equipped with air exit 1.2a on the back handle body 1.2 lateral wall around motor 9.2.

When the medical knife is used specifically, a medical worker holds the knife handle 1, applies force properly to enable the blade 3 to be attached to the skin of a surgical site, then the switch 11 is turned on, and hairs on the surgical site are scraped in a conventional mode. After the switch 11 is turned on, the motor 9.2 drives the fan blades 9.1 to rotate to form negative pressure suction force, skin preparation products (hair, scurf and the like) shaved by the skin preparation knife enter the negative pressure suction cavity 4 under the action of negative pressure and then enter the hair collection cover 7 through the suction channel 5, so that the skin preparation products are effectively prevented from flying to pollute the surrounding environment, and the cleanness of an operation room is ensured. In the skin preparation process, the hair shunting cones 8 are arranged at the bottoms of the hair collecting covers 7, so that skin preparation products entering the hair collecting covers 7 can be dispersed around the hair shunting cones 8, and the phenomenon that the hair collecting covers 7 are blocked by the skin preparation products to weaken the negative pressure suction force is avoided. In the embodiment, the knife handle 1 is composed of the front handle body 1.1 and the rear handle body 1.2 and can be freely disassembled, and relatively high parts (the negative pressure fan 9 and the power supply 10) are arranged in the rear handle body 1.2, so that the rear handle body 1.2 can be reused, and different patients only need to replace the front half part with low cost when using the knife handle, thereby effectively avoiding cross infection, being beneficial to reducing medical cost and lightening the burden of the patients.

As shown in fig. 2, in the present embodiment, the rear end of the front handle body 1.1 is provided with an internal thread interface communicated with the suction channel 5; the upper end of the hair collecting cover 7 is provided with an external thread joint matched with the internal thread interface, and the hair collecting cover 7 is in threaded connection with the front handle body 1.1. So set up, after the skin preparation is handled the end or the skin preparation result collection in the cover 7 is collected to the hair reaches certain volume, only need to separate preceding handle 1.1 and back handle 1.2, just can conveniently take out the cover 7 is collected to the hair, carries out centralized processing to the skin preparation result.

In the present embodiment, as shown in fig. 2, the blades 3 have three blades, the three blades 3 are arranged in parallel, and the included angle between the plane of the blades 3 and the shaving direction is greater than 60 degrees and smaller than 90 degrees. With the arrangement, the three blades 3 are combined to ensure the hair shaving effect, and the arrangement of the blades 3 with large angles is favorable for the smooth suction of the shaved hair.

As shown in fig. 1 and 2, in the present embodiment, the power supply 10 uses replaceable batteries, a battery cavity with a tail cover 1.3 is provided at the lower part of the rear handle body 1.2, the batteries are installed in the battery cavity, and the switch 11 is provided on the tail cover 1.3. So set up, the battery is changed very conveniently, and switch 11 sets up and can avoid the skin preparation in-process to take place the mistake and touch on tail-hood 1.3.

As shown in fig. 2, in the present embodiment, the inner surface of the hair collecting cover 7 is provided with a hair filter adsorption layer 12. So set up, hair filters adsorbed layer 12 can prevent that the preserved skin result of razor shaving from entering into negative pressure air blower 9 in, avoids the hair detritus to pile up and breed the bacterium, improves the cleanliness factor of device, reduces patient and infects the risk. The hair filter absorbing layer 12 may be a conventional product in the art, such as a sponge or a non-woven fabric.

As shown in fig. 2 and 3, in the present embodiment, a hair comb 13 is disposed on the holder 2 in front of the edge of the blade 3. In this way, the hair comb 13 combs the hair in advance during shaving, and is suitable for shaving long and curly sweat hair.

The above description is only for the preferred embodiment of the present invention, and the above specific embodiments are not intended to limit the present invention. Various modifications and alterations may occur to those skilled in the art without departing from the spirit and scope of the utility model, and such modifications and alterations should be accorded the broadest interpretation so as to encompass all such modifications and alterations.

Claims

1. The skin preparation knife capable of automatically collecting hair comprises a knife handle (1), a knife holder (2) and a blade (3), wherein the knife holder (2) is arranged at the front end of the knife handle (1), and the blade (3) is fixed on the knife holder (2); the method is characterized in that: the knife handle (1) comprises a front handle body (1.1) and a rear handle body (1.2), the knife holder (2) is integrally fixed at the front end of the front handle body (1.1), a negative pressure adsorption cavity (4) is arranged at a position, below the blade (3), in the knife holder (2), a suction channel (5) communicated with the negative pressure adsorption cavity (4) is arranged in the knife holder (2) and the front handle body (1.1), the rear handle body (1.2) is in threaded sealing connection with the front handle body (1.1), a cavity (6) is arranged in the rear handle body (1.2), a hair collection cover (7) is arranged at the upper part in the cavity (6), the hair collection cover (7) is a hollow cylinder, and an inward-protruding hair shunting cone (8) is arranged at the bottom of the hair collection cover (7); negative-pressure air fan (9) and power (10) are installed to lower part in cavity (6), flabellum (9.1) of negative-pressure air fan (9) are located the below that cover (7) was collected to the hair, and motor (9.2) of negative-pressure air fan (9) are located flabellum (9.1) below, and flabellum (9.1) fixed mounting is on the output shaft of motor (9.2), and motor (9.2) are connected with power (10) through switch (11), are equipped with air exit (1.2a) on the back handle body (1.2) lateral wall around motor (9.2).

2. A razor capable of automatically collecting hair according to claim 1, wherein: the rear end of the front handle body (1.1) is provided with an internal thread interface communicated with the suction channel (5); the upper end of the hair collecting cover (7) is provided with an external thread joint matched with the internal thread interface, and the hair collecting cover (7) is in threaded connection with the front handle body (1.1).

3. A razor capable of automatically collecting hair according to claim 1, wherein: the three blades (3) are arranged in parallel, and the included angle (alpha) between the plane of the blades (3) and the shaving direction is larger than 60 degrees and smaller than 90 degrees.

4. A razor capable of automatically collecting hair according to claim 1, wherein: the power supply (10) adopts a replaceable battery, a battery cavity with a tail cover (1.3) is arranged at the lower part of the rear handle body (1.2), the battery is arranged in the battery cavity, and the switch (11) is arranged on the tail cover (1.3).

5. A razor capable of automatically collecting hair according to claim 1, wherein: the inner surface of the hair collecting cover (7) is provided with a hair filtering and adsorbing layer (12).

6. A razor of claim 5, which automatically collects hair, wherein: the hair filtering and adsorbing layer (12) is made of sponge or non-woven fabric.

7. A skin preparation knife capable of automatically collecting hair according to any one of claims 1 to 6, wherein: the hair comb (13) is arranged on the tool apron (2) in front of the edge of the blade (3).