CN111887984A

CN111887984A - Electric knife head with suction tube

Info

Publication number: CN111887984A
Application number: CN202010573281.5A
Authority: CN
Inventors: 吴红英
Original assignee: Zigong First Peoples Hospital
Current assignee: Zigong First Peoples Hospital
Priority date: 2020-06-22
Filing date: 2020-06-22
Publication date: 2020-11-06
Anticipated expiration: 2040-06-22
Also published as: CN111887984B

Abstract

The invention discloses an electric scalpel head with a suction tube, and belongs to the field of medical instruments. The electric scalpel head with the suction tube comprises an inner shell with a T-shaped section, wherein a first end part is arranged at one end with a small section area in the inner shell, a second end part is arranged at one end with a large section area in the inner shell, a scalpel head with one end extending out of the first end part is fixedly arranged in the inner shell, the other end of the scalpel head is connected with an electric wire, and a controllable telescopic part matched with the scalpel head is arranged on the outer surface of the inner shell; the controllable telescopic part comprises a telescopic pipe body and a driving part matched with the telescopic pipe body, the telescopic pipe body comprises a first straight pipe section, a corrugated pipe section and a second straight pipe section which are connected in sequence, one end, far away from the corrugated pipe section, of the second straight pipe section is connected with the edge, close to the first end, of the second end, a gap is formed between the second straight pipe section and the first end, a suction pipe communicated with the gap is installed on the side wall of the second straight pipe section, and at least two support columns matched with the outer wall of the first end are arranged on the inner wall of the first straight pipe section.

Description

Electric knife head with suction tube

Technical Field

The invention relates to the field of medical instruments, in particular to an electric scalpel head with a suction tube.

Background

The electrotome and the suction tube are the most frequently used instruments in the surgical operation at present, wherein the electrotome comprises an electrotome head and a power supply connected with the electrotome head, and under the action of the power supply, the electrotome realizes the separation and the coagulation of body tissues, thereby achieving the purposes of cutting and stopping bleeding. The suction tube sucks out blood and debris generated when the tissue is cut and smoke and waste gas generated when the blood is stopped and burned under the action of negative pressure.

At present, in the actual operation process, a doctor generally holds the electric scalpel head to perform the operation, and an assistant holds the suction tube to remove blood, debris and smoke generated in the operation process. This results in a long time from the exit of the suction tube to the arrival of the electrocoagulation at the bleeding site, greatly affecting the hemostasis operation, which is not good for the postoperative recovery of the patient, and may even cause an operation accident.

Disclosure of Invention

In view of the above-mentioned disadvantages in the prior art, the present invention aims to provide an electric scalpel head with a suction tube, which can shorten the switching time between the electric scalpel head and the suction tube.

In order to achieve the purpose of the invention, the invention adopts the technical scheme that:

the electric scalpel head with the suction tube comprises an inner shell with a T-shaped section, wherein one end with a small section area in the inner shell is a first end part, the other end with a large section area is a second end part, a scalpel head with one end extending out of the first end part is fixedly arranged in the inner shell, the other end of the scalpel head is connected with an electric wire, and a controllable telescopic part matched with the scalpel head is arranged on the outer surface of the inner shell; the controllable telescopic part comprises a telescopic pipe body and a driving part matched with the telescopic pipe body, the telescopic pipe body comprises a first straight pipe section, a corrugated pipe section and a second straight pipe section which are connected in sequence, one end, far away from the corrugated pipe section, of the second straight pipe section is connected with the edge, close to the first end, of the second end, a gap is formed between the second straight pipe section and the first end, a suction pipe communicated with the gap is installed on the side wall of the second straight pipe section, and at least two support columns matched with the outer wall of the first end are arranged on the inner wall of the first straight pipe section.

The invention has the beneficial effects that:

unite two into one electric tool bit and attract the pipe, based on the flexible of the scalable body of drive division control, realize hiding and exposing of tool bit. Thereby shortened the switch between electrotome head and the suction tube and then shortened the suction tube and left the electric coagulation and reach the length of bleeding point, also reduced the possibility that the operation accident takes place when being favorable to patient's postoperative to resume.

Drawings

FIG. 1 is a schematic sectional view of an electric scalpel head with a suction tube in an embodiment;

FIG. 2 is an enlarged schematic view at A in FIG. 1;

FIG. 3 is an enlarged schematic view taken from FIG. 1;

figure 4 is a cross-sectional view of the fit between the first straight section, the support post and the first end of figure 1.

Wherein, 1, a cutter head; 2. a first straight pipe section; 3. a support pillar; 4. an annular projection; 5. a first support bar; 6. a suction tube; 7. a second end portion; 8. a second straight tube section; 9. a bellows section; 10. a first end portion; 11. an annular cavity; 12. a first spring; 13. a first protrusion; 14. a second support bar; 15. a toothed surface; 16. a top rod; 17. a second protrusion; 18. a cup-shaped body; 19. a second spring.

Detailed Description

The following detailed description of the present invention will be provided in conjunction with the accompanying drawings to facilitate the understanding of the present invention by those skilled in the art. It should be understood that the embodiments described below are only some embodiments of the invention, and not all embodiments. All other embodiments obtained by a person skilled in the art without any inventive step, without departing from the spirit and scope of the present invention as defined and defined by the appended claims, fall within the scope of protection of the present invention.

As shown in fig. 1 to 3, the electric scalpel head with the suction tube comprises an inner shell with a T-shaped section, wherein one end with a small section area in the inner shell is a first end part 10, one end with a large section area is a second end part 7, a scalpel head 1 with one end extending out of the first end part 10 is fixedly installed in the inner shell, the other end of the scalpel head 1 is connected with an electric wire, and a controllable telescopic part matched with the scalpel head 1 is installed on the outer surface of the inner shell; the controllable flexible portion includes scalable body and with scalable body complex drive division, scalable body is including the first straight tube section 2 that connects in order, bellows section 9 and second straight tube section 8, the one end that bellows section 9 was kept away from to second straight tube section 8 is close to the edge connection of first end portion 10 with second end portion 7, have the clearance between second straight tube section 8 and the first end portion 10, install on the lateral wall of second straight tube section 8 and attract pipe 6 with clearance intercommunication, be provided with on the inner wall of first straight tube section 2 with first end portion 10 outer wall complex two piece at least support columns 3 (the setting of support column 3 has avoided first straight tube section 2 skew relative second straight tube section 8, thereby the stability of scalable body stroke has been guaranteed).

Based on the flexible of the scalable body of drive division control, the probability of the mistake cutting that the mode of realizing tool bit 1 hidden and exposed has reduced direct flexible tool bit brings is realized. Because the mode of direct flexible tool bit is before changing into electrotome cutting mode from the attraction mode, generally need the handheld electrotome head of doctor to retreat a distance and make the tool bit unsettled rather than with patient's tissue contact to avoid the tool bit to stretch out and lead to the mistake cutting. Before the scheme is converted into the electrotome cutting mode from the suction mode, a doctor does not need to hold the electrotome head by a distance.

In the suction tube 6 mode, the flow path of the substance to be sucked in the electric knife head with the suction tube is as follows: the first straight tube section 2 is away from the orifice of the bellows → the gap between the first straight tube section 2 and the first end portion 10 → the gap between the bellows and the first end portion 10 → the gap between the second straight tube section 8 and the first end portion 10 → the suction tube 6.

In the specific embodiment, the tube wall opening of the end of the first straight tube section 2 far away from the corrugated tube section 9 is a cambered surface, so that the possibility that the tube opening of the first straight tube section 2 damages the tissue of the patient is reduced. For the stability of this electric tool bit of area suction tube of further reinforcing, support column 3 is three, 3 annular evenly distributed of three support columns.

As shown in fig. 4, the first end portion 10 is a circular tube, and one side of the supporting column 3 close to the outer wall of the first end portion 10 is an inward concave arc surface.

To accommodate surgery requiring a bent blade 1, the blade 1 includes a curved section and a straight section connected together, the curved section extending beyond the first end 10.

As shown in fig. 2 and 3, the driving part includes an annular cavity 11 disposed outside the second end part 7, an annular protrusion 4 disposed on the outer wall of the first straight pipe section 2, and a check structure engaged with the retractable pipe body, a first supporting rod 5 extending into the annular cavity 11 is disposed on one side of the annular protrusion 4 close to the corrugated pipe section 9, a first spring 12 and a first protrusion 13 are disposed on a portion of the first supporting rod 5 located in the annular cavity 11, and a distance between the first protrusion 13 and the annular protrusion 4 is greater than a distance between the first spring 12 and the annular protrusion 4.

When the mode needs to be switched to the suction tube 6 mode, the doctor pushes the annular protrusion 4 towards the front end until the annular protrusion 4 cannot continue to advance under the action of the annular cavity 11, the first spring 12 and the first protrusion 13, and meanwhile, the annular protrusion 4 cannot retreat under the action of the non-return part. During this movement of the annular projection 4, the annular projection 4 drives the first straight tube section 2, the first strut 5 and the second strut 14 to advance synchronously (this advancement reduces the length of the bellows), eventually bringing the end of the electrotome inside the first straight tube section 2, thus hiding the electrotome and providing a basis for the physician to perform suction by contacting the first straight tube section 2 with the tissue of the patient.

As shown in fig. 3, the non-return structure comprises a top bar 16 with a T-shaped section and a second support bar 14 arranged on the side of the annular protrusion 4 close to the first end 10, the second support bar 14 extends into the annular cavity 11, one surface of the part of the second support bar 14 in the annular cavity 11 facing the outer wall of the annular cavity 11 is a toothed surface 15, and one surface of each tooth on the toothed surface 15, which is far away from the second straight pipe section 8, is perpendicular to the straight line section of the cutter head 1; the outer wall of the annular cavity 11 is provided with a cup-shaped body 18 with a cross section of [ ], one end of a vertical section of the ejector rod 16 penetrates through the cup-shaped body 18 and extends into the annular cavity 11 to be matched with the toothed surface 15, a second spring 19 and a second bulge 17 are arranged on the part of the vertical section, which is positioned in the cup-shaped body 18, and the distance between the second bulge 17 and the toothed surface 15 is smaller than the distance between the second spring 19 and the toothed surface 15.

When the mode needs to be switched to the electric knife mode, the ejector rod 16 is held and moved away from the annular cavity 11, and is released after being held for a period of time, so that the vertical section loses contact with the toothed surface 15 in the period of time. When the vertical section loses the engagement with the toothed surface 15, the first rod 5 moves backwards to the set position under the action of the first spring 12. The backward movement of the first strut 5 brings the annular projection 4, the first straight section 2 and the second strut 14 to move backward in synchronism (this backward movement increases the length of the bellows). When the external force on the stem 16 has disappeared, the vertical segment returns to contact with the toothed surface 15 under the action of the second spring 19. When the vertical section is contacted with the toothed surface 15, the second supporting rod 14 can move forwards and cannot move backwards, and the convenient switching between the electrotome mode and the suction tube mode is realized while the non-return is skillfully realized by combining the arrangement of the first supporting rod 5 and the first spring 12.

As shown in fig. 1, the end of the suction tube 6 remote from the second straight tube section 8 extends through the portion of the second end portion 7 remote from the annular cavity 11, thereby reducing the exposure of the conduit for the surgeon's surgical operation.

In a further embodiment, the outer surface of the outer wall of the annular cavity 11 is provided with a handle shell, the plunger 16 is located outside the handle shell, and the end of the second end portion 7 remote from the annular cavity 11 is located inside the handle shell, thereby further reducing the exposed pipes.

Claims

1. The electric scalpel head with the suction tube is characterized by comprising an inner shell with a T-shaped section, wherein a first end part (10) is arranged at one end with a small sectional area in the inner shell, a second end part (7) is arranged at one end with a large sectional area in the inner shell, a scalpel head (1) with one end extending out of the first end part (10) is fixedly arranged in the inner shell, the other end of the scalpel head (1) is connected with an electric wire, and a controllable telescopic part matched with the scalpel head (1) is arranged on the outer surface of the inner shell; the controllable telescopic part comprises a telescopic pipe body and a driving part matched with the telescopic pipe body, the telescopic pipe body comprises a first straight pipe section (2), a corrugated pipe section (9) and a second straight pipe section (8) which are sequentially connected, one end, away from the corrugated pipe section (9), of the second straight pipe section (8) is connected with the edge, close to the first end part (10), of the second end part (7), a gap is formed between the second straight pipe section (8) and the first end part (10), a suction pipe (6) communicated with the gap is installed on the side wall of the second straight pipe section (8), and at least two support columns (3) matched with the outer wall of the first end part (10) are arranged on the inner wall of the first straight pipe section (2).

2. Electric scalpel head with suction tube according to claim 1, wherein the wall mouth of the first straight tube section (2) at the end far away from the corrugated tube section (9) is a cambered surface.

3. Electric scalpel head with suction tube according to claim 1, wherein the first end (10) is a circular tube, and the side of the support column (3) close to the outer wall of the first end (10) is an inward-concave arc surface.

4. The electric scalpel head with the suction tube as claimed in claim 1, wherein the number of the support columns (3) is three, and the three support columns (3) are circumferentially and uniformly distributed.

5. Electric scalpel head with suction tube according to claim 1, where the scalpel head (1) comprises a curved section and a straight section connected together, where the curved section extends out of the first end (10)

6. The electric scalpel head with the suction tube as claimed in any one of claims 1 to 5, wherein the driving portion comprises an annular cavity (11) arranged outside the second end portion (7), an annular protrusion (4) arranged on the outer wall of the first straight tube section (2), and a check structure matched with the telescopic tube body, a first supporting rod (5) extending into the annular cavity (11) is arranged on one side of the annular protrusion (4) close to the corrugated tube section (9), a first spring (12) and a first protrusion (13) are arranged on the portion, located in the annular cavity (11), of the first supporting rod (5), and the distance between the first protrusion (13) and the annular protrusion (4) is greater than the distance between the first spring (12) and the annular protrusion (4).

7. The electric cutter head with the suction tube is characterized in that the non-return structure comprises a top rod (16) with a T-shaped section and a second support rod (14) arranged on one side of the annular protrusion (4) close to the first end (10), the second support rod (14) extends into the annular cavity (11), one surface of the part, located in the annular cavity (11), of the second support rod (14) facing the outer wall of the annular cavity (11) is a toothed surface (15), and one surface, away from the second straight pipe section (8), of each tooth on the toothed surface (15) is perpendicular to the straight line section of the cutter head (1); the annular cavity (11) is provided with a cup-shaped body (18) with a cross section of [ ", one end of a vertical section of the ejector rod (16) penetrates through the cup-shaped body (18) and extends into the annular cavity (11) to be matched with the toothed surface (15), a second spring (19) and a second protrusion (17) are arranged on a part, located in the cup-shaped body (18), of the vertical section, and the distance between the second protrusion (17) and the toothed surface (15) is smaller than the distance between the second spring (19) and the toothed surface (15).

8. Electric shaver head with suction tube according to claim 6, characterised in that the end of the suction tube (6) remote from the second straight tube section (8) runs through the part of the second end (7) remote from the annular chamber (11).