CN108406240A - A kind of processing method of abdominal operation suction tube - Google Patents

Abstract

The invention relates to the processing of medical instruments, in particular to a method for processing a suction tube for abdominal surgery, which includes cutting a section of solid cylindrical tube; A concentric annular cavity; at the lower end of the above-mentioned tubular body, several grooves with openings on the side wall of the tubular body are processed axially from its lower end surface; each of the grooves extends to the annular cavity, and communicate with the annular cavity. In the present invention, an annular cavity is processed at the upper end of a solid tube body, and a groove is processed at the lower end. The groove is sucked to the annular cavity at the upper end, which is easier for waste blood and waste residue to pass through than the holes of various shapes in the existing suction head, and can prevent clogging from occurring.

Description

A processing method of suction tube for abdominal surgery

technical field

The invention relates to the processing field of medical instruments, in particular to a processing method of a suction tube for abdominal surgery.

Background technique

In recent years, with the rapid development of medical device technology and the continuous improvement of surgical concepts, the proportion of laparoscopic surgery has accounted for more than half of surgical operations. Usually, almost all general surgical operations, such as liver, gallbladder, pancreas, spleen, gastrointestinal tumor surgery, abdominal wall hernia repair, etc., as well as various genitourinary system operations such as kidney, prostate, bladder tumor surgery, hysterectomy, etc. It can be completed under laparoscopy; the principle is to establish a number of operating holes through the patient's abdominal wall, and after the artificial pneumoperitoneum is established, a laparoscopic lens with a cold light source and a long rod-shaped laparoscopic operating instrument rod are inserted. The laparoscopic lens transmits the real-time images on the monitor, manipulates the instrument rod outside the patient's body to perform various surgical operations in the closed abdominal space, and achieves "precise anatomy" under the magnified field of view to achieve the purpose of "minimally invasive" treatment; It has many advantages such as small trauma, fast postoperative recovery, short hospital stay and less pain for patients. Laparoscopic surgery is becoming the development direction of the surgical field with its rapid trend. At present, blood sucking and smoking during laparoscopic surgery are all done by the suction device. The suction head of the suction device generally adopts a suction tube. The front end of the tube body is the input end, and the rear end is the output end. Provides negative pressure to the input. At present, the suction tube is mostly made of metal material, which is directly processed into a hollow shape, and then the side wall of the input end is processed with a suction hole communicating with the inner cavity. The suction tube processed in this way is likely to cause blockage and affect the operation.

Contents of the invention

In view of the above technical problems, the present invention provides a method for processing a suction tube for abdominal surgery, and the suction tube processed by this method can prevent blockage.

The technical solution adopted by the present invention to solve the above technical problems is: a method for processing a suction tube for abdominal surgery, comprising the following steps:

(1) Cut a section of solid cylindrical tube;

(2) On the upper end of the above-mentioned pipe body, an annular cavity concentric with the pipe body is machined axially from its upper end surface;

(3) At the lower end of the above-mentioned pipe body, several grooves with openings on the side wall of the pipe body are processed in the axial direction from the lower end surface;

(4) Each of the grooves extends to the annular cavity and communicates with the annular cavity.

Preferably, each groove has a "convex" shape in cross section.

Preferably, the tube body is made of metal material, hard plastic or hard silica gel.

Preferably, the process of machining the annular cavity is firstly to drill a suitable depth in the axial direction on the upper end surface of the tubular body with a drill, and then rotate the tubular body with the drill as the center.

Preferably, the groove is processed by first placing a special-shaped cutter on the lower end surface of the tube body, and then axially moving the cutter to the annular cavity.

Preferably, the following steps are also included:

(5) Machining a blind hole in the axial direction from the upper end surface to the lower end at a position different from the annular cavity in the center of the pipe body;

(6) Processing several cleaning holes radially connected with the blind hole at the bottom of each groove.

Preferably, the blind hole and the cleaning hole are processed by a drill.

It can be known from the above technical solutions that the present invention processes the annular cavity at the upper end of the solid tube body and the groove at the lower end, the processing process is simple and quick, and when the processed tube body provides negative pressure at its upper end, the waste blood in the operation process Compared with the holes of various shapes in the existing suction head, the waste blood and residue are attracted to the annular cavity at the upper end through the groove at the lower end, and it is easier for blood waste and residue to pass through, which can prevent clogging.

Description of drawings

Fig. 1 is a schematic structural view of the suction tube of the present invention.

Fig. 2 is a sectional view of A-A in Fig. 1 .

Detailed ways

The present invention will be described in detail below in conjunction with FIG. 1 and FIG. 2 , where the schematic embodiments and descriptions of the present invention are used to explain the present invention, but not as a limitation to the present invention.

A method for processing a suction tube for abdominal surgery, comprising the following steps:

(1) Cut out a section of solid cylindrical tube body 1; the tube body can be made of metal material, which can be reused, or can be made of hard plastic or hard silicone, which can be used only once to avoid cross-infection.

(2) On the upper end of the above-mentioned pipe body, an annular cavity 2 concentric with the pipe body is processed in the axial direction from its upper end face; the processing process is to first drill out in the axial direction on the upper end face of the pipe body with a drilling tool Appropriate depth, and then rotate the pipe body around the drilling tool to form an annular cavity. The depth of the annular cavity is determined according to the length of the pipe body and the like.

(3) At the lower end of the above-mentioned pipe body, several grooves 3 with openings on the side wall of the pipe body are processed in the axial direction from the lower end surface; the cross-section of each groove is "convex", that is, the groove is formed by It is composed of a small cavity with an opening on the outside and a large cavity on the inside. The opening of the small cavity on the outside is narrower, which makes the suction force stronger, which is conducive to attracting waste blood and waste residue; the large cavity on the inside is conducive to the flow of waste blood and waste residue, improving efficiency. Simultaneously, because the opening of the groove is longer, the waste blood and waste residue can flow in the outer opening for a longer time under the action of the attraction force, so as to prevent clogging.

(4) Each of the grooves extends to the annular cavity and communicates with the annular cavity. To process the grooves, first place the special-shaped cutter on the lower end surface of the pipe body, and then move the cutter axially to the annular cavity to ensure that each groove communicates with the annular cavity. The special-shaped cutter of the present invention adopts a convex cutter, and the cutter radially protrudes from the side wall of the pipe body during processing to ensure that the groove has an opening on the side wall.

(5) A blind hole 4 is machined in the axial direction from the upper end surface to the lower end at a position different from the annular cavity in the center of the tube body, that is, the lower end surface of the blind hole is closed to prevent waste blood and slag from entering the hole during the suction process .

(6) Process several cleaning holes 5 radially connected with the blind holes at the bottom of each groove, and the blind holes and cleaning holes only need to be processed by a drill.

It can be seen from the above that only simple drill bits and drilling tools can be used in the processing of the suction tube of the present invention, and there is no need to invest in expensive equipment; and the equipment used is less, the cost is low, the processing technology is simple, and the operation is easy; At the same time, by setting fixed stations, assembly line operations can be carried out to achieve large-scale production.

During implementation, the upper end of the suction tube of the present invention is connected to the negative pressure equipment of the suction device through a negative pressure tube to provide negative pressure suction for the lower end of the tube body. The waste blood and waste residue during the operation are sucked from the groove at the lower end of the tube body to the annular cavity at the upper end under the action of the suction force, and then flow out, thereby discharging the waste blood and waste residue in the abdominal cavity. The invention adopts the groove design with an opening, which not only prevents clogging, but also has a fast liquid discharge speed, which can reduce operation time. Each of the grooves in the present invention can be sucked from the end face and side wall of the lower end, increasing the sucking area and improving the sucking efficiency. Moreover, several grooves can be evenly distributed along the peripheral wall of the tube body, so as to avoid restricting the placement position of the suction head during the operation, so that the operation is simpler and faster. The number of grooves can be reasonably set according to the site of operation, generally four, preferably symmetrically distributed, which is more conducive to placement.

The blind hole and the cleaning hole of the present invention form a cleaning circuit for cleaning the groove. The cleaning liquid input into the blind hole flows out from the cleaning hole to flush the groove. Compared with the holes provided on the wall of the groove, the cleaning holes arranged at the bottom of the groove can clean the groove more thoroughly. In the implementation process, the blind hole is connected with the cleaning pipe, and the cleaning pipe is connected with the cleaning liquid source to realize the cleaning of the groove. When the negative pressure equipment performs negative pressure suction, since the cleaning channel is connected with the cleaning liquid source, there is no backflow power, and the waste blood and waste residue in the groove flow toward the liquid outlet chamber, which is consistent with the flow direction of the cleaning liquid. Therefore waste blood and waste residue will not flow into the cleaning hole.

The cleaning of the present invention can be divided into passive cleaning and active cleaning. Passive cleaning is that when the negative pressure equipment sucks the waste blood and waste residue in the groove through the negative pressure tube, under the action of negative pressure suction, the cleaning liquid in the cleaning liquid source It is sucked into the groove through the blind hole and the cleaning hole. On the one hand, it can dilute the waste residue and prevent it from blocking the groove during the flow process; on the other hand, it can clean the groove wall; , The cleaning hole is connected to realize passive cleaning; if there is a valve, just open the valve. Active cleaning is to provide power at the cleaning liquid source without negative pressure suction to transport the cleaning liquid from the cleaning liquid source to the blind hole and the cleaning hole to clean and disinfect the groove for the next use. At this time, it is necessary to provide Additional conveying power, such as water pumps, etc.

The above-mentioned embodiments are only for the purpose of illustrating the present invention, rather than limiting the present invention. Those of ordinary skill in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all Equivalent technical solutions should also belong to the scope of the present invention.

Claims (7)

1. a kind of processing method of abdominal operation suction tube, includes the following steps：

（1）Intercept the tube body of one section of solid cylindrical；

（2）One and the body concentric toroidal cavity of the pipe are processed in an axial direction from end face thereon in the upper end of above-mentioned tubular body；

（3）Processing several in an axial direction from its lower face in the lower end of above-mentioned tubular body has the groove being open in the tube wall；

（4）Every groove extends to the toroidal cavity, and is connected to the toroidal cavity.

2. the processing method of abdominal operation suction tube according to claim 1, it is characterised in that：Groove described in each Section is in the shape of a " convex ".

3. the processing method of abdominal operation suction tube according to claim 1, it is characterised in that：The tube body uses metal Material, rigid plastics or hard gel are made.

4. the processing method of abdominal operation suction tube according to claim 1, it is characterised in that：Process the toroidal cavity It is to drill out suitable depth in an axial direction in the upper surface of the tube body with drilling tool first, the pipe is then rotated centered on the drilling tool Body.

5. the processing method of abdominal operation suction tube according to claim 1, it is characterised in that：Processing groove is first will Special-shaped cutter is placed in the bottom of the pipe face, then moves axially at the cutter to the toroidal cavity.

6. according to the processing method of any one of claim 1 to 5 abdominal operation suction tube, it is characterised in that also wrap Include following steps：

（5）In the body central blind hole is processed in an axial direction from upper surface to lower end different from the position of the toroidal cavity；

（6）In several cleaning holes of the slot bottom processing and the blind hole radial communication of each groove.

7. the processing method of abdominal operation suction tube according to claim 6, it is characterised in that：The blind hole and cleaning hole It is processed by drill bit.