CN112220502B - A valve body device for assisting endoscopic specimen collection - Google Patents

Abstract

The present invention relates to the technical field of medical specimen sampling, in particular to a valve body device for assisting endoscope to take specimens, comprising a casing, a rotary valve body, a specimen extraction device, a valve hole locking device, a docking device and a connector, The inside of the casing is provided with the rotary valve body, the left and right sides of the rotary valve body are respectively provided with an inflow pipeline and an outflow pipeline, the inflow pipeline includes an endoscope hose and a shut-off valve, and the The endoscope hose is connected to the outer end of the inflow line through the connector. The invention only needs to adjust the rotary valve body, and the specimens to be sucked out can be retained through the screen device, which saves the process of repeated insertion and extraction of the assistant, adjustment of gauze, connection air tightness and confirmation of whether the retention is successful, and saves money. It can shorten the operation time, reduce the risk of anesthesia and the incidence of related complications, and improve the efficiency of specimen retention.

Description

A valve body device for assisting endoscopic specimen collection

technical field

The invention relates to the technical field of medical specimen sampling, in particular to a valve body device for assisting an endoscope to take specimens.

Background technique

At present, the biopsy procedure of digestive endoscopists is that after the pathological tissue of the digestive tract is cut, the smaller specimen can be retained on the gauze between the endoscopic biopsy channel and the external drainage tube through the suction of the biopsy channel under the endoscope. , after the pathological specimens are determined to be collected after cutting, the assistant manually pulls out the drainage tube, puts the prepared thin-layer gauze between the drainage tube and the endoscope drainage channel, and then inserts the drainage tube. Drop the drainage tube to determine whether the specimen is retained on the gauze until the retention is successful. This process of multiple manual insertion and extraction and gauze preparation greatly increases the overall operation time of the patient. Especially in the case of gauze thickness and unsatisfactory fit of the suction device, it is necessary to repeatedly adjust the gauze, through repeated suction, repeated Insertion and extraction to check whether the specimen is successfully preserved increases the risk of anesthesia and the occurrence of intraoperative complications.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a valve body device for assisting an endoscope to collect specimens in view of the deficiencies of the prior art.

The technical problem to be solved by the present invention is achieved through the following technical solutions: a valve body device for assisting endoscope to retain specimens, including a casing, a rotary valve body, a specimen extraction device, a valve hole locking device, and a docking device and connector, the inside of the housing is provided with the rotary valve body, the left and right sides of the rotary valve body are respectively provided with an inflow pipeline and an outflow pipeline, the inflow pipeline includes an endoscope hose and a cut-off The endoscope hose is connected to the outer end of the inflow pipeline through the connector, the shut-off valve is arranged in the middle of the inflow pipeline, and the inner end of the inflow pipeline is provided with a docking device, The outflow pipeline includes an aspirator hose, a flow velocity detection device and a particle detection device, the aspirator hose is connected to the outer end of the outflow pipeline through the connector, and the middle part of the outflow pipeline is provided with A flow velocity detection device and a particle detection device, the inflow pipeline and the outflow pipeline are connected with the left and right end faces of the rotary valve body through the docking device, respectively, and a sample extraction device is installed on the top of the casing. The top of the body is provided with a valve body sampling port, and the sample extraction device is used to extract the specimen carrier at the corresponding valve position inside the rotary valve body through the valve body sampling port, and the top of the shell is provided with a valve hole locking device, so The valve hole locking device is used to control the locking and opening of the sampling port of the valve body.

Further, the docking device includes a magnetic suction plate, an elastic rubber tube and a butt clamping head, the magnetic suction plate is fixedly installed on the inner side of the bottom of the casing, and the docking clamping head is connected to the magnetic suction plate through the elastic rubber tube The magnetic suction plate is used for magnetic suction to control the expansion and contraction of the butt clamping head, and the butt clamping head is used for butt-pressing the end face of the rotary valve body.

Further, the butt clamping head is in the shape of a flat cone sleeve, the outer edge of the butt clamping head is provided with a contact annular surface, and the contact annular surface is provided with a water-tight elastic rubber ring.

Further, the elastic rubber hose includes an axially movable keel, and the axially movable keel is used to support the linear free expansion and contraction movement of the elastic rubber hose.

Further, the rotary valve body is cylindrical, the interior of the rotary valve body is provided with a first valve position, a second valve position and a third valve position, and the valve hole of the first valve position is provided with the sieve A mesh device, the outer side of the screen device is connected with a mesh layer bracket, the screen device is fixed inside the valve hole of the first valve position through the mesh layer bracket, and the center of the rotary valve body is provided with a rotary drive shaft There is a rotary encoder inside the rotary drive shaft device, the rotary drive shaft device is connected with a rotary servo drive system, and both the rotary drive shaft device and the rotary servo drive system are fixedly installed inside the housing through a bracket structure .

Further, the first valve position, the second valve position and the third valve position are circumferentially arranged at equal intervals around the center line of rotation of the rotary valve body, and the first valve position, the second valve position and the third valve position The left and right ends of the position are provided with abutting annular grooves that are in cooperative contact with the abutting device, the second valve position is set as a through hole, and the third valve position is set as a closed hole.

Further, the screen device comprises a first mesh layer, a second mesh layer, a third mesh layer and a fourth mesh layer arranged at intervals before and after, the first mesh layer, the second mesh layer, and the third mesh layer. and the fourth mesh layer are connected into a cylindrical shape by a mesh layer connecting frame, the outer side of the screen device is provided with a clamping structure, and the mesh layer bracket is connected with the outer side of the screen device through the clamping structure. .

Further, the spacing between adjacent layers of the first mesh layer, the second mesh layer, the third mesh layer and the fourth mesh layer along the liquid flow direction gradually increases.

Further, the specimen extraction device includes a turning mechanism, a linear sliding drive mechanism and an electromagnetic suction cover, the turning mechanism is fixedly installed on the top of the casing, and the linear sliding driving mechanism is connected to the output end of the turning mechanism , the end of the linear sliding drive mechanism is provided with an electromagnetic suction cover, and the electromagnetic suction cover is used for suction and extraction of the sample carrier inside the rotary valve body.

Compared with the prior art, the present invention has the following advantages:

The invention realizes three different working modes of the valve body through the rotary valve body provided with three valve positions, namely sampling mode, downstream mode and locking mode, and realizes watertight connection through the control system and the cooperation of the docking device It can be freely switched between the working mode and the working mode, and the operation is convenient; and in the sampling mode, the samples of different sizes can be automatically separated and extracted, and the screen device can be manually operated through the sample extraction device, which reduces the external pollution of the sample and has operational flexibility; The time-sharing docking is realized through the telescopic control docking device, which ensures the water tightness of the valve body during the switching movement of the working mode, and also ensures the water tightness under the static working device of the valve body, and improves the cleanliness of the valve body; The invention only needs to adjust the rotary valve body to save the sample that needs to be sucked out through the screen device, which saves the process of repeatedly inserting and pulling the assistant, adjusting the gauze, connecting the air tightness and confirming whether the retention is successful, saving The operation time is reduced, the risk of anesthesia and the incidence of related complications are reduced, and the efficiency of specimen retention is improved.

Description of drawings

Fig. 1 is the overall internal structure schematic diagram of the present invention;

FIG. 2 is a schematic structural diagram of the rotary valve body 2 of the present invention;

Fig. 3 is the structural representation of the screen device 3 of the present invention;

1-housing, 11-inflow pipeline, 111-endoscope hose, 112-shutoff valve, 12-outflow pipeline, 121-aspirator hose, 122-flow rate detection device, 123-particle detection device, 2- Rotary valve body, 21-first valve position, 22-second valve position, 23-third valve position, 24-slewing drive shaft device, 25-slewing servo drive system, 3-screen device, 31-first screen layer, 32-second mesh layer, 33-third mesh layer, 34-fourth mesh layer, 35- mesh layer connecting frame, 4- mesh layer bracket, 5-specimen extraction device, 51-turning mechanism, 52-straight line Sliding drive mechanism, 53-electromagnetic suction cover, 6-valve hole locking device, 7-butt device, 71-magnetic suction plate, 72-elastic hose, 73-butt clamping head, 8-connector.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

As shown in Figures 1-3, the present invention discloses a valve body device for assisting endoscope to collect specimens, including a housing 1, a rotary valve body 2, a specimen extraction device 5, a valve hole locking device 6, a docking device The device 7 and the connector 8, the rotary valve body 2 is provided inside the casing 1, and the inflow pipeline 11 and the outflow pipeline 12 are respectively provided on the left and right sides of the rotary valve body 2. The inflow pipeline The line 11 includes an endoscope hose 111 and a cut-off valve 112, the endoscope hose 111 is connected to the outer end of the inflow pipeline 11 through the connector 8, and the cut-off valve 112 is provided in the inflow pipeline In the middle of 11, the inner end of the inflow pipeline 11 is provided with a docking device 7, and the outflow pipeline 12 includes an aspirator hose 121, a flow velocity detection device 122 and a particle detection device 123, and the aspirator hose 121 passes through the The connector 8 is connected to the outer end of the outflow pipeline 12, the middle of the outflow pipeline 12 is provided with a flow velocity detection device 122 and a particle detection device 123, and the inflow pipeline 11 and the outflow pipeline 12 pass through the The docking device 7 is respectively connected with the left and right end faces of the rotary valve body 2 , a sample extraction device 5 is installed on the top of the casing 1 , a valve body sampling port is arranged on the top of the casing 1 , and the sample extraction device 5 is installed. It is used to extract the specimen carrier at the corresponding valve position inside the rotary valve body 2 through the valve body sampling port. The specimen extraction device 5 includes a turning mechanism 51, a linear sliding drive mechanism 52 and an electromagnetic suction cover 53. The turning mechanism 51 is fixedly installed on the top of the housing 1, the linear sliding driving mechanism 52 is connected to the output end of the turning mechanism 51, and the end of the linear sliding driving mechanism 52 is provided with an electromagnetic suction cover 53, the electromagnetic The suction cover 53 is used for adsorbing and extracting the sample carrier inside the rotary valve body 2 . The top of the casing 1 is provided with a valve hole locking device 6 , and the valve hole locking device 6 is used to control the sampling port of the valve body. lock and open.

The docking device 7 includes a magnetic suction plate 71 , an elastic rubber tube 72 and a butt clamping head 73 , the magnetic suction plate 71 is fixedly installed on the inner side of the bottom of the housing 1 , and the docking clamping head 73 passes through the elastic rubber tube 72 . Connected with the magnetic suction plate 71 , the magnetic suction plate 71 is used for magnetic suction to control the expansion and contraction of the butt clamping head 73 , and the butt clamping head 73 is used for butt-pressing the end face of the rotary valve body 2 . The butt clamping head 73 is in the shape of a flat cone sleeve, the outer edge of the butt clamping head 73 is provided with a contact annular surface, the contact annular surface is provided with a water-tight elastic rubber ring, and the elastic rubber tube 72 includes a shaft. To the movable keel, the axial movable keel is used to support the linear free telescopic movement of the elastic rubber tube 72 .

The rotary valve body 2 is cylindrical, and the interior of the rotary valve body 2 is provided with a first valve position 21 , a second valve position 22 and a third valve position 23 . There is the screen device 3, the outer side of the screen device 3 is connected with a mesh layer bracket 4, and the screen device 3 is fixed inside the valve hole of the first valve position 21 through the mesh layer bracket 4. The center of the rotary valve body 2 is provided with a rotary drive shaft device 24, the interior of the rotary drive shaft device 24 is provided with a rotary encoder, the rotary drive shaft device 24 is connected with a rotary servo drive system 25, and the rotary drive shaft device 24 and the rotary servo drive system 25 are fixedly installed inside the housing 1 through a bracket structure. The first valve position 21 , the second valve position 22 and the third valve position 23 are circumferentially arranged at equal intervals around the center line of rotation of the rotary valve body 2 , and the first valve position 21 , the second valve position 22 The left and right ends of the third valve position 23 are provided with abutting annular grooves that are in mating contact with the docking device 7 , the second valve position 22 is set as a through hole, and the third valve position 23 is set as a closed hole. The screen device 3 includes a first mesh layer 31 , a second mesh layer 32 , a third mesh layer 33 and a fourth mesh layer 34 , which are arranged at intervals in the front and rear. The first mesh layer 31 and the second mesh layer 32 , The third mesh layer 33 and the fourth mesh layer 34 are connected into a cylindrical shape through the mesh layer connection frame 35, the outside of the screen device 3 is provided with a clamping structure, and the mesh layer support 4 is clamped by the clamping structure. The structure is connected to the outside of the screen device 3 . The spacing between adjacent layers of the first mesh layer 31 , the second mesh layer 32 , the third mesh layer 33 and the fourth mesh layer 34 along the liquid flow direction gradually increases.

In actual use, a digestive endoscope system is connected to the outer end of the endoscope hose 111, and the body fluid in the digestive tract enters the inflow pipeline 11 through the endoscope hose 111. When sampling is required, the control system controls the first valve position. 21 rotates to the working position and remains stationary. At this time, the docking devices 7 on the left and right sides of the rotary valve body 2 act simultaneously to press the docking clamping heads 73 on both ends of the first valve position 21 to form a sampling path. The system automatically opens the shut-off valve 112, the body fluid of the digestive tract flows into the screen device 3 in the first valve position 21, the specimen is continuously filtered and stored by the screen device 3, and the filtered liquid flows into the container of the aspirator system through the suction tube 121. During this process, the flow rate detection device 122 and the particle detection device 123 continuously detect the state of the liquid after filtering and sampling, and provide a reference for whether to replace the screen device 3. When the screen device 3 needs to be extracted after a period of time , the control shut-off valve 112 is closed, the docking device 7 is retracted, the first valve position 21 is rotated to the upper sampling position, at this time the first valve position 21 is opposite to the sampling port of the valve body, and the electromagnetic suction cover 53 adsorbs the mesh layer support 4 and In the screen device 3, the linear sliding drive mechanism 52 drives the electromagnetic suction cover 53 to move upward, so that the screen device 3 leaves the first valve position 21. At this time, the turning mechanism 51 drives the linear sliding driving mechanism 52 to turn over as a whole, so that the mesh layer The bracket 4 and the screen device 3 face forward as a whole, and the medical staff can remove the screen device 3 from the mesh layer bracket 4 by using an appliance, so as to realize the automatic sampling process. Similarly, installing the screen device 3 into the valve body is also a similar operation process, and these processes can be flexibly controlled by the control system, and those skilled in the art can directly associate with the above-mentioned technical contents. The working process of the second valve position 22 and the third valve position 23 is similar to the working process of the first valve position 21 and is relatively simple, and will not be repeated here.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims (7)

1. A valve body device for assisting an endoscope to collect specimens, characterized in that: comprising a housing, a rotary valve body, a specimen extraction device, a valve hole locking device, a docking device and a connector, and the The rotary valve body is provided inside, the left and right sides of the rotary valve body are respectively provided with an inflow pipeline and an outflow pipeline, the rotary valve body is cylindrical, and the interior of the rotary valve body is provided with a first valve position, the second valve position and the third valve position, the valve hole of the first valve position is provided with a screen mesh device, the outer side of the screen mesh device is connected with a mesh layer support, and the screen mesh device passes through the mesh layer support. It is fixed inside the valve hole of the first valve position, the center of the rotary valve body is provided with a rotary drive shaft device, the interior of the rotary drive shaft device is provided with a rotary encoder, and the rotary drive shaft device is connected with a rotary Servo drive system, the rotary drive shaft device and the rotary servo drive system are fixedly installed inside the casing through a bracket structure, and the screen device includes a first mesh layer, a second mesh layer, a third mesh layer, and a The mesh layer and the fourth mesh layer, the first mesh layer, the second mesh layer, the third mesh layer and the fourth mesh layer are connected into a cylindrical shape through a mesh layer connection frame, and the outside of the screen device is provided with A clamping structure, the mesh layer bracket is connected to the outside of the screen device through the clamping structure, the inflow pipeline includes an endoscope hose and a shut-off valve, and the endoscope hose passes through the connector Connected to the outer end of the inflow pipeline, the shut-off valve is arranged in the middle of the inflow pipeline, the inner end of the inflow pipeline is provided with a docking device, and the outflow pipeline includes an aspirator hose, a flow rate detector A device and a particle detection device, the suction hose is connected to the outer end of the outflow pipeline through the connector, a flow velocity detection device and a particle detection device are arranged in the middle of the outflow pipeline, and the inflow pipeline and the outflow pipeline are respectively connected with the left and right end faces of the rotary valve body through the docking device, a sample extraction device is installed on the top of the shell, and a valve body sampling port is arranged on the top of the shell, and the sample extraction device is installed on the top of the shell. The device is used to extract the specimen carrier at the corresponding valve position inside the rotary valve body through the valve body sampling port, the top of the casing is provided with a valve hole locking device, and the valve hole locking device is used to control the valve body Locking and opening of sampling ports. 2 . A valve body device for assisting endoscope to retain specimens according to claim 1 , wherein the docking device comprises a magnetic suction plate, an elastic rubber tube and a butt clamping head, and the magnetic suction plate It is fixedly installed on the inner side of the bottom of the casing, and the docking clamping head is communicated with the magnetic suction plate through an elastic rubber tube. The clamping head is used for butt-pressing the end face of the rotary valve body. 3 . The valve body device for assisting endoscope to retain specimens according to claim 2 , wherein the docking clamping head is in the shape of a flat cone sleeve, and the outer edge of the docking clamping head is in the shape of a flat cone. 4 . A contact annular surface is provided, and a water-tight elastic rubber ring is arranged on the contact annular surface. 4 . The valve body device for assisting endoscopy in collecting specimens according to claim 2 , wherein the elastic rubber tube comprises an axially movable keel, and the axially movable keel is used to support the elastic Linear free telescopic movement of the hose. 5 . The valve body device for assisting endoscopic specimen collection according to claim 1 , wherein the first valve position, the second valve position and the third valve position surround the rotary valve body. 6 . The center line of rotation of the valve is circumferentially arranged at equal intervals, and the left and right ends of the first valve position, the second valve position and the third valve position are provided with abutting annular grooves that are in cooperative contact with the abutting device, and the second valve position and the third valve position The valve position is set as a through hole, and the third valve position is set as a closed hole. 6 . The valve body device for assisting endoscopy to take specimens according to claim 1 , wherein the first mesh layer, the second mesh layer, the third mesh layer and the fourth mesh layer are along the The spacing between adjacent layers in the liquid flow direction increases gradually. 7 . The valve body device for assisting endoscope to collect specimens according to claim 1 , wherein the specimen extraction device comprises a turning mechanism, a linear sliding drive mechanism and an electromagnetic suction cover, and the turning The mechanism is fixedly installed on the top of the casing, the linear sliding drive mechanism is connected to the output end of the turning mechanism, and the end of the linear sliding driving mechanism is provided with an electromagnetic suction cover, which is used for suction Extract the sample carrier inside the rotary valve body.

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