CN108324349B - A pen-shaped debridement device - Google Patents

Abstract

The invention discloses a pen-shaped debridement device, which is characterized in that it includes a debridement head, the debridement head is hollow, and a cavity is arranged inside, including a scraper, and a plurality of them are arranged, connected with the debridement head, located at the The outer surface of the debridement head; the adsorption opening is arranged on the debridement head and corresponds to the scraper; the adsorption opening communicates with the cavity, and is used to allow the scraped material of the scraper to enter the cavity; The holding rod is provided with a cavity inside, and the cavity runs through the holding rod; one end of the connecting part is connected to the tail of the debridement head, and the other end is connected to the holding rod. The purpose of simple structure, flexibility and steering ability, light and stable manipulation is achieved.

Description

A pen-shaped debridement device

technical field

The invention relates to the technical field of medical devices, in particular to a pen-shaped debridement device.

Background technique

Chronic infection and acute open injury wounds are common types of trauma in orthopedics. Benign soft tissue tumors and other masses without clear boundaries with surrounding tissues are also common types of elective surgery. In the above detection and cleaning of lesion tissue, the purpose of surgery is to remove as much lesion tissue as possible to reduce residual and possible pollutants. The current conventional surgical instruments are mainly orthopedic soft tissue and tumor curettes. Although there are different specifications and models to choose from, they are mainly designed in the shape of a round spoon at the distal end. The edge of the tissue contacting during operation is generally within 1/2 Left and right, and this type of curette is designed to be suitable for different operation spaces through different sizes and models. Each operation requires 3 to 5 curettes of different specifications; and it is generally necessary to press hard during the operation to improve the curettage efficiency, which may cause damage to normal tissues. crush injury. Based on this, it is necessary to design a debridement device with high specification compatibility, scrape as much diseased tissue as possible, and protect normal tissue.

Contents of the invention

Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a technical solution with simple structure, flexibility and steering ability, and light and stable manipulation, so as to solve the problems raised in the above-mentioned background technology.

To achieve the above object, the present invention provides the following technical solutions:

A pen-shaped debridement device is characterized in that, comprising

The debridement head, the debridement head is hollow, with a cavity inside, including

A scraper, provided with several, connected with the debridement head, located on the outer side of the debridement head;

The adsorption opening is arranged on the debridement head and corresponds to the scraper; the adsorption opening communicates with the cavity, and is used to allow the scraped material of the scraper to enter the cavity;

The holding rod is provided with a cavity inside, and the cavity runs through the holding rod;

A connecting part, one end is connected with the tail of the debridement head, and the other end is connected with the holding rod.

As a preference: the scraper is provided with a blade, the blade is arc-shaped, and the arc is greater than or equal to 180 degrees.

As a preference: the adsorption opening is located below the corresponding scraper, and the size of the adsorption opening is larger than that of the scraper.

As a preference: the debridement head is made of hard elastic material, such as spring steel.

As a preference: the cross-section of the debridement head is arc-shaped, and the front end of the debridement head goes backward, and the size gradually increases.

As a preference: the shape of the debridement head is spindle or conical.

As a preference: the debridement head is provided with a long groove, the long groove runs through the debridement head, and the long groove is equally divided relative to the central circumference of the debridement head, so as to improve the elasticity of the debridement head , for rapid debridement while reducing compression of normal tissue.

As a preference: the connection part includes

a connecting tube, connecting the debridement head and the holding rod;

The adsorption tube is located in the connecting tube, the front end of the adsorption tube is provided with a bell mouth, the large mouth end of the bell mouth is connected to the connecting pipe or the tail of the debridement head, and the small mouth end of the bell mouth is connected to the adsorption tube. to prevent backflow.

Preferably, the upper end of the connecting part is provided with an internal thread, the holding rod is provided with an external thread corresponding to the internal thread, and the upper end of the connecting part is threadedly connected with the holding rod.

As a preference: the outer diameter of the upper end of the connecting portion corresponds to the width of the holding rod, and a sheath is provided on the outside of the upper end of the connecting portion, and the sheath covers the connection between the connecting portion and the holding rod.

Preferably, a fastening screw is provided on the connecting portion, and the fastening screw penetrates through the connecting portion to exert force and compress the gripping rod.

As a preference: the inner surface of the connecting pipe is connected with a stopper, the stopper is flange-shaped and has elasticity, and forms a clamping slot with the connecting tube, and the gripping rod is located in the clamping slot, And fit between the grip bar and the blocking plate.

As a preference: a buffer pad is provided between the connecting pipe and the holding rod, and the buffer pad is sleeved on the holding rod or the connecting pipe.

As a preference: the forward projection of the debridement head falls into the connection part, and an elastic ring is provided on the outer surface of the lower end of the connection part to reduce possible accidental touches caused by the connection part when the debridement head is used.

Preferably, the connection part and the holding rod are clamped and fixed, and a locking block and a buckle are respectively arranged between the holding rod and the connecting part, and the locking block and the buckle are fitted and connected.

As a preference: a fixing ring is fixedly arranged on the inner wall of the connecting pipe, and the fixing ring is fixedly connected with the bell mouth.

As a preference: a rotating part is provided between the debridement head and the connecting part, and the rotating part includes

clamping the shell, and fixedly connecting with the connecting part;

The center of the rotating ball is located in the clamping shell and freely rotates relative to the clamping shell;

Wherein, the upper end of the debridement head is connected with an extension sleeve; the extension sleeve runs through the center of the rotating sphere, and is fixedly connected with the center of the rotation sphere, and the upper end of the extension sleeve is connected to the connecting portion, It communicates with the cavity of the debridement head and the connecting part.

As a preference: a lubricating layer is provided between the clamping shell and the rotating sphere to ensure lubrication.

As a preference: the clamping housing, the rotating sphere or the elongated sleeve is provided with a limiting member, which is used to limit the rotation range of the rotating sphere.

As a preference: an anti-slip layer is provided on the outer side of the grip bar, which is used to increase the feel of the grip bar and increase the static friction between the hand and the grip bar.

As a preference: it also includes a negative pressure head, the negative pressure head is connected to the tail of the holding rod, and the negative pressure head is connected to the cavity, and is used to connect the negative pressure adsorption device to absorb the debridement head and the suction tube scrapes.

As can be seen from the foregoing technical scheme, the beneficial effects of the present invention are:

The debridement head is designed to be elastic. Compared with the traditional curette, it can reduce the damage to normal tissue under the purpose of scraping the diseased tissue; the dense arrangement of the scraper facilitates the debridement operation in multiple directions. The scraper is Three-quarters of the round blade does not need to be adjusted by repeatedly rotating the wrist; the bell mouth can prevent backflow, and can provide storage of diseased tissue for culture and pathology without negative pressure suction, and is beneficial to diseased tissue under negative pressure conditions No reflux is removed; the negative pressure suction device combined with the negative pressure head at the end can replace the use of the suction device during the operation.

Description of drawings

Fig. 1 is a schematic cross-sectional structure diagram of Embodiment 1 of the present invention;

Figure 2 is a partial enlarged view of Figure 2;

Fig. 3 is the structural representation of scraper;

Fig. 4 is the structural representation of debridement head;

Fig. 5 is the structural representation of embodiment two;

Figure 6 is a partially enlarged view of Figure 5;

Fig. 7 is the structural representation of embodiment three;

Figure 8 is a partially enlarged view of Figure 7;

Fig. 9 is a schematic structural diagram of Embodiment 4.

Reference signs: 1. Debridement head; 11. Scraper; 111. Blade; 12. Adsorption opening; 13. Long groove; 14. Extended sleeve; 2. Connecting part; 21. Connecting pipe; 22. Blocking plate; 23 , fastening screw; 24, buffer pad; 25, coat; 26, elastic ring; 27, fixed ring; 28, buckle; 3, grip rod; 31, cavity; 32, anti-skid layer; 4. Negative pressure head; 5. Adsorption tube; 51. Bell mouth; 6. Rotating part; 61. Clamping shell; 62. Lubricating layer; 63. Rotating ball center.

Detailed ways

According to Figure 1 to Figure 9:

Embodiment one

A pen-shaped debridement device is characterized in that, comprising

Debridement head 1, described debridement head 1 is hollow, is provided with cavity inside, comprises

A scraper 11, provided with several, is connected with the debridement head 1 and is located on the outer side of the debridement head 1;

The adsorption opening 12 is arranged on the debridement head 1 and corresponds to the scraper 11; the adsorption opening 12 communicates with the cavity, and is used to allow the scraped material of the scraper 11 to enter the cavity;

The grip rod 3 is provided with a cavity 31 inside, and the cavity 31 runs through the grip rod 3;

The connecting part 2 is connected to the tail of the debridement head 1 at one end, and connected to the holding rod 3 at the other end.

The scraper 11 is provided with a blade 111, the blade 111 is arc-shaped, and the radian is greater than or equal to 180 degrees; the scraper 11 is a round edge, and the blade 111 accounts for more than three quarters of the edge of the scraper 11; and The debridement head 1 is integrated; the scraper 11 is formed by cutting and folding the debridement head 1 .

The adsorption opening 12 is located below the corresponding scraper 11 , and the size of the adsorption opening 12 is larger than that of the scraper 11 .

The debridement head 1 is made of hard elastic material, such as spring steel.

The cross-section of the debridement head 1 is arc-shaped, and the front end of the debridement head 1 is gradually increased in size.

The shape of the debridement head 1 is spindle-shaped or conical, or the shape of a brush tip.

The debridement head 1 is provided with a long groove 13, the long groove 13 is elongated, while increasing the elasticity, it prevents diseased tissue or normal tissue from entering the cavity through the long groove 13; the long groove 13 runs through The debridement head 1, and the long groove 13 is equally divided relative to the central circumference of the debridement head 1, which is used to improve the elasticity of the debridement head 1, and is used for rapid debridement while reducing the extrusion of normal tissues .

The connecting part 2 includes a connecting pipe 21, which connects the debridement head 1 and the holding rod 3; the adsorption pipe 5 is located in the connecting pipe 21, and the front end of the adsorption pipe 5 is provided with a bell mouth 51, The large mouth end of the bell mouth 51 is connected to the connecting pipe 21 or the tail of the debridement head 1, and the small mouth end of the bell mouth 51 is connected to the adsorption tube 5 to prevent backflow.

The upper end of the connecting part 2 is provided with an internal thread, and the holding rod 3 is provided with an external thread corresponding to the internal thread, and the upper end of the connecting part 2 is threadedly connected with the holding rod 3 .

The outer diameter of the upper end of the connecting portion 2 corresponds to the width of the holding rod 3 , and a sheath 25 is sheathed on the outer side of the upper end of the connecting portion 2 , and the sheath 25 covers the connection between the connecting portion 2 and the holding rod 3 place.

The connecting part 2 is provided with a fastening screw 23 , and the fastening screw 23 penetrates through the connecting part 2 and presses the grip bar 3 tightly.

The inner surface of the connecting pipe 21 is connected with a blocking piece 22, the blocking piece 22 is flange-shaped, has elasticity, and forms a clamping slot with the connecting tube 21, and the holding rod 3 is located at the clamping joint. In the slot, and fit between the grip bar 3 and the blocking piece 22.

A buffer pad 24 is provided between the connecting pipe 21 and the gripping rod 3 , and the buffering pad 24 is sheathed on the gripping rod 3 or the connecting pipe 21 .

The forward projection of the debridement head 1 falls into the connection part 2, and the outer surface of the lower end of the connection part 2 is provided with an elastic ring 26, which is used to reduce the possible false touches caused by the connection part 2 when the debridement head 1 is used. .

Embodiment two

On the basis of Embodiment 1, the threaded connection between the connecting part 2 and the grip rod 3 and the technical features related to the threaded connection are cancelled;

The connection part 2 and the holding rod 3 are clamped and fixed, and the holding rod 3 and the connecting part 2 are respectively provided with a locking block 33 and a buckle 28, and the locking block 33 and the buckle 28 are mated and connected. . Through the clamping method, one is to increase the convenience of installation and disassembly. In one operation, multiple debridement heads 1 can be replaced to complete multiple sampling of diseased tissues, which is also more convenient in later maintenance; The problem of tissue getting stuck in the thread makes the connection tighter and reduces tissue residue.

The clamping block 33 and the buckle 28 are respectively arranged on the outside of the grip bar 3 and the connecting part 2; the clamping block 33 and the buckle 28 are respectively provided with inclined protruding teeth for preventing loosening after connection.

A fixing ring 27 is fixedly disposed on the inner wall of the connecting pipe 21 , and the fixing ring 27 is fixedly connected to the bell mouth 51 .

Embodiment three

On the basis of Embodiment 1 or 2, an additional rotating part is provided;

A rotating part 6 is provided between the debridement head 1 and the connecting part 2, and the rotating part 6 includes

The clamping shell 61 is fixedly connected with the connecting part 2;

The rotating ball center 63 is located in the clamping shell 61 and can rotate freely relative to the clamping shell 61;

Wherein, the upper end of the debridement head 2 is connected with an extension sleeve 14; the extension sleeve 14 runs through the rotating spherical center 63 and is fixedly connected with the rotating spherical center 63. The connection part 2 is connected, and the cavity for the debridement head 1 communicates with the connection part 2.

A lubricating layer 62 is provided between the clamping shell 61 and the rotating ball center 63 to ensure lubrication.

A damping layer is also provided between the clamping shell 61 and the rotating ball center 63 , and when in use, a proper amount of damping can provide a good feel. Facilitates fine and extreme operations for debridement operations.

Limiting parts are provided on the clamping shell 61 , the rotating sphere 63 or the elongated sleeve 14 to limit the rotation range of the rotating sphere 63 .

By setting the rotating part 6, the conversion of the debridement head within a certain range is realized, which is beneficial to cleaning obliquely inward diseased tissues, and is also beneficial to reducing the extrusion force on normal tissues during the debridement process.

Embodiment Four

On the basis of embodiment one, two or three;

The length of the adsorption tube 5 is less than the length of the cavity 31 of the holding rod 3, and the tail end of the adsorption tube 5 is airtight. The present invention can be used to take pathological materials, specifically as using the debridement head 1 to scrape the diseased tissue, Then use the adsorption tube 5 to store the diseased tissue, and then release the connection relationship between the connecting part 2 and the holding rod 3, and remove the diseased tissue in the adsorption tube 5.

Embodiment five

On the basis of embodiment one, two or three;

An anti-skid layer 32 is provided on the outside of the grip bar 3 for increasing the feel of the grip bar 3 and increasing the static friction between the hand and the grip bar 3 .

Also includes a negative pressure head 4, the negative pressure head 4 is connected to the tail of the grip rod 3; and the negative pressure head 4 communicates with the cavity 31, or further communicates with the adsorption tube 5 for connecting the negative pressure Adsorption equipment, absorbing the scrapings in the debridement head and the adsorption tube.

The above is only a preferred embodiment of the present invention. All the descriptions in the text, such as up, down, left, right, front, back, etc., are only for the convenience of understanding, and are not intended to limit the actual use of the product. The scope of protection of the present invention is not limited to the above examples. The technical solutions under the idea of the present invention all belong to the protection scope of the present invention. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention should also be regarded as the protection scope of the present invention.

Claims (8)

1. A pen-shaped debridement device, characterized in that, comprising The debridement head, the debridement head is hollow, with a cavity inside, including A scraper, provided with several, connected with the debridement head, located on the outer side of the debridement head; The adsorption opening is arranged on the debridement head and corresponds to the scraper; the adsorption opening communicates with the cavity, and is used to allow the scraped material of the scraper to enter the cavity; The holding rod is provided with a cavity inside, and the cavity runs through the holding rod; A connecting part, one end is connected to the tail of the debridement head, and the other end is connected to the holding rod; the connecting part includes a connecting tube, connecting the debridement head and the holding rod; The adsorption tube is located in the connecting tube, the front end of the adsorption tube is provided with a bell mouth, the large mouth end of the bell mouth is connected to the connecting pipe or the tail of the debridement head, and the small mouth end of the bell mouth is connected to the adsorption tube. to prevent backflow; Wherein, a rotating part is provided between the debridement head and the connecting part, and the rotating part includes clamping the shell, and fixedly connecting with the connecting part; The center of the rotating ball is located in the clamping shell and freely rotates relative to the clamping shell; Wherein, the upper end of the debridement head is connected with an extension sleeve; the extension sleeve runs through the center of the rotating sphere, and is fixedly connected with the center of the rotation sphere, and the upper end of the extension sleeve is connected to the connecting portion, It communicates with the cavity of the debridement head and the connecting part. 2. The pen-shaped debridement device according to claim 1, characterized in that: the scraper is provided with a blade, and the blade is arc-shaped, and the arc is greater than or equal to 180 degrees. 3. A pen-shaped debridement device according to claim 1, characterized in that: the debridement head is made of hard elastic material. 4. A pen-shaped debridement device according to claim 1 or 2, characterized in that: said debridement head is provided with a long groove, said long groove runs through said debridement head, and said long groove is opposite to The central circumference of the debridement head is equally divided, which is used to improve the elasticity of the debridement head for rapid debridement and reduce the extrusion of normal tissues. 5. A pen-shaped debridement device according to claim 1, characterized in that: the upper end of the connecting part is provided with an internal thread, the holding rod is provided with an external thread corresponding to the internal thread, and the upper end of the connecting part Threaded connection with the grip rod. 6. A pen-shaped debridement device according to claim 5, characterized in that: the inner surface of the connecting pipe is connected with a baffle, the baffle is flange-shaped and has elasticity, and forms a joint with the connecting pipe. The clamping groove, the holding rod is located in the clamping groove, and the holding rod and the blocking piece are bonded. 7. A pen-shaped debridement device according to claim 1, characterized in that: the connecting part and the holding rod are clamped and fixed, and there are locking blocks and holding rods respectively arranged between the holding rod and the connecting part. Buckle, the clamping block and the buckle are mated and connected. 8 . The pen-shaped debridement device according to claim 1 , characterized in that: the clamping housing, the rotating sphere or the elongated sleeve is provided with a limiting member, which is used to limit the rotation range of the rotating sphere.