CN212521954U - Negative pressure puncture injection device for portal vein under laparoscope - Google Patents
Negative pressure puncture injection device for portal vein under laparoscope Download PDFInfo
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- CN212521954U CN212521954U CN202021887416.7U CN202021887416U CN212521954U CN 212521954 U CN212521954 U CN 212521954U CN 202021887416 U CN202021887416 U CN 202021887416U CN 212521954 U CN212521954 U CN 212521954U
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- puncture
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- connecting pipe
- portal vein
- suction tube
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Abstract
A negative pressure puncture injection device for a portal vein under a laparoscope comprises negative pressure equipment and puncture injection equipment, wherein the negative pressure equipment is a suction cylinder, the front end of the negative pressure equipment is provided with a rubber sleeve for attaching to the front wall of the portal vein, and the rear end of the negative pressure equipment is provided with a negative pressure connecting port and a fixing through hole; the puncture injection device comprises a puncture part and an injection part, wherein the puncture part consists of a puncture needle and a hard hollow catheter, the hard hollow catheter is hermetically arranged at the fixed through hole in a penetrating way and is in sliding connection with the suction cylinder, the inner end of the hard hollow catheter is fixedly connected with the puncture needle, and the outer end of the hard hollow catheter is communicated with the injection part; the puncture needle is a hollow needle body, the tail part of the puncture needle is fixedly connected with the inner end of the hard hollow catheter and is communicated with the inner cavity of the hard hollow catheter; the injection part comprises a connecting pipe and a syringe, the connecting pipe is arranged outside the suction tube, the head end of the connecting pipe is communicated with the outer end of the hard hollow catheter, and the tail end of the connecting pipe is communicated with the injection head of the syringe. The utility model has the advantages that: only the anterior wall of the portal vein needs to be exposed, so that the situations of bleeding, perforation and the like are effectively avoided.
Description
Technical Field
The utility model relates to a laparoscopic portal negative pressure puncture injection device, which belongs to the field of medical instruments.
Background
Normal liver is divided into 8 sections according to portal vein and hepatic vein walking, and in liver cancer patients, in order to avoid cutting excessive liver and reduce the risk of liver function failure, a clinician often specifically selects to cut one or more sections of liver according to the tumor position, thereby realizing the purpose of accurate liver cutting. However, the normal liver surface has no liver segment boundary mark, which causes difficulty in liver segment division in the surgical operation. In liver surgery, in order to display liver segmentation and achieve the purpose of accurate hepatectomy, specific liver segment staining is often required to be achieved by selecting specific portal vein injection indocyanine green dye in the surgery.
In current clinical practice, the portal vein of a specific hepatic segment is often located in the deep part of the abdominal cavity and is partially distributed in the liver, so that the operation space is narrow and difficult to expose. Meanwhile, the hepatic portal blood flow blocking is needed in order to reduce bleeding in the operation in the liver operation, so that portal veins are deflated due to blood flow loss, puncture is performed under the condition, specific portal veins are often required to be fully separated, the puncture difficulty is greatly increased, the operation risk is increased, and the difficulty is particularly high under the laparoscopic operation. If a suitable device is provided, the portal vein puncture injection can be carried out without fully exposing in a narrow space, so that the success rate of portal vein puncture can be greatly improved, the operation difficulty is reduced, and the benefit of patients is increased.
Meanwhile, the operation of the patient with the hepatic cirrhosis portal hypertension is different from the general operation, the operation indication needs to be grasped strictly, the most suitable operation formula needs to be selected, otherwise, the possibility of postoperative complications, rebleeding and death is increased obviously, and therefore, the reasonable selection of the operation mode needs to be changed according to the portal vein hemodynamics of the patient. At present, the method for directly measuring the free portal vein pressure in the operation is the most reliable method for reflecting the portal vein pressure, and is an objective and quantitative index, the traditional intubation catheter for puncturing the right vein through the gastroomentum is difficult to enter the superior mesenteric vein-portal vein, and the method for reading data by taking a zero point and using a water column method every time is unreliable, so that the result error is larger, and the accuracy is greatly influenced. In this case, if a proper device is available to insert the catheter into the portal vein, the portal vein pressure change can be dynamically observed to predict the incidence of re-bleeding, which is of great significance to the surgical approach guidance of the patient.
At present, clinically, especially, there is no suitable device for performing portal vein puncture injection under laparoscopic operation, and in order to solve the problem of portal vein puncture injection under the laparoscopic, a laparoscopic portal vein negative pressure puncture device is designed in long-term practice, the device lifts the anterior wall of the portal vein through negative pressure, and the diameter of the portal vein under the ischemia condition is enlarged on the premise of only exposing the anterior wall of the portal vein, so that portal vein puncture is performed, portal vein pressure can be measured under the condition of improving the success rate of portal vein puncture, and the difficulty of accurate hepatic segment resection operation can be reduced.
Disclosure of Invention
In order to solve the problem, an object of the utility model is to provide a portal vein negative pressure puncture injection device under peritoneoscope can be used to liver portal vein puncture in the laparoscopic surgery, measures portal vein pressure, injects operations such as the green dyestuff of indole green.
A laparoscopic portal vein negative pressure puncture injection device, its characterized in that: the puncture injection device comprises a negative pressure device and a puncture injection device, wherein the negative pressure device is a suction tube, the front end of the negative pressure device is provided with a rubber sleeve for being attached to the front wall of a portal vein, and the rear end of the negative pressure device is provided with a negative pressure connector for being connected with a negative pressure suction apparatus and a fixing through hole for fixing and allowing a puncture part of the puncture injection device to pass through;
the puncture injection device comprises a puncture part and an injection part, wherein the puncture part consists of a puncture needle and a hard hollow catheter, the hard hollow catheter is hermetically arranged at the fixed through hole in a penetrating way and is in sliding connection with the suction cylinder, the inner end of the hard hollow catheter is fixedly connected with the puncture needle, and the outer end of the hard hollow catheter is communicated with the injection part and is used for realizing the communication between the puncture part and the injection part; the puncture needle is a hollow needle body, the tail part of the puncture needle is fixedly connected with the inner end of the hard hollow catheter and is communicated with the inner cavity of the hard hollow catheter, and the tip end of the puncture needle is aligned to the rubber sleeve and is used for penetrating through the rubber sleeve to be punctured into the lower portal vein of the laparoscope under the control of the clamping groove on the suction tube;
the injection part comprises a connecting pipe and a syringe, the connecting pipe is arranged outside the suction tube, the head end of the connecting pipe is communicated with the outer end of the hard hollow catheter, and the tail end of the connecting pipe is communicated with the injection head of the syringe and used for injecting and spraying medicine into the portal vein under the laparoscope through the syringe.
Preferably, the front end of the suction tube is designed to be an arc obtuse angle, and a rubber sleeve which can be attached to the front wall of the portal vein is arranged at the front end of the suction tube, so that tissue or blood vessel damage caused by fixed negative pressure suction is avoided.
Preferably, the puncture needle is fixedly connected with the inner end of the hard hollow catheter and used for fixing the direction of the puncture needle.
Preferably, the suction tube is provided with a chute, the chute is provided with an upper clamping groove of the suction tube which can slide along the axial direction of the suction tube in a sliding fit manner, the hard hollow catheter is connected with the suction tube in a sliding manner through the upper clamping groove of the suction tube, the upper clamping groove of the suction tube is pushed forwards and backwards along the axial direction of the suction tube so as to be connected with the forward and backward movement of the puncture needle, and the telescopic distance of the puncture needle is limited at the same time.
Preferably, the connecting pipe is a double-channel connecting pipe and is provided with a head end and two tail ends, the head end of the connecting pipe is communicated with the outer end of the hard hollow catheter, and one tail end of the connecting pipe is communicated with an injection head of an injector and is used for injecting the laxative into the portal vein under the laparoscope through the injector; the other tail end of the connecting pipe is inserted into the pigtail catheter, and the pigtail catheter is inserted into the portal vein to measure the portal vein pressure in real time.
The puncture needle is an 18G puncture needle.
Compared with the prior art, the utility model has the advantages of it is following:
the utility model discloses portal vein negative pressure puncture injection device has negative pressure equipment under the peritoneoscope, only needs to expose the portal vein antetheca under laparoscopic surgery, can attract a section of thick bamboo through the arc and adsorb and carry the portal vein antetheca, need not to peel off the portal vein completely, reduces the impaired possibility of portal vein, the pjncture needle puncture portal vein of effectively being convenient for. After the anterior wall of the portal vein is pulled, the puncture needle is accurately controlled to be inserted into the needle through the clamping groove, so that the treatment risks such as bleeding caused by too deep insertion are avoided, and the operation difficulty is reduced. The tail end of the puncture device is innovatively connected with a double-channel connecting pipe, so that bleeding and medicine injection are effectively controlled, and conditions are provided for catheter intervention. Through clinical use, the surgical instrument is convenient, quick and flexible to use and operate, effectively saves the operation time and improves the operation safety, and the effect achieved by the surgical instrument is that the direct portal vein puncture of the existing laparoscopic operation cannot be finished.
Drawings
FIG. 1 is a front view of a laparoscopic portal vein subpressure puncture injection device;
in the figure, 1, a suction tube, 2, a puncture needle, 3, a hard hollow catheter, 4, a clamping groove on the suction tube, 5, a connecting tube, 6, an injector, 7, a negative pressure connecting port and 8, a rubber sleeve.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
With reference to the accompanying drawings:
embodiment 1 the utility model discloses a laparoscopic portal vein negative pressure puncture injection device, including negative pressure equipment and puncture injection equipment, negative pressure equipment is a suction tube 1, the front end is installed and is used for laminating the rubber sleeve 8 of portal vein antetheca, the rear end is equipped with the negative pressure connector who is used for connecting the negative pressure aspirator and is used for fixing and the fixed through-hole that supplies the puncture part of puncture injection equipment to pass through;
the puncture injection device comprises a puncture part and an injection part, wherein the puncture part consists of a puncture needle 2 and a hard hollow catheter 3, the hard hollow catheter 3 is hermetically arranged at the fixed through hole in a penetrating way and is in sliding connection with the suction cylinder 1, the inner end of the hard hollow catheter is fixedly connected with the puncture needle, the outer end of the hard hollow catheter is communicated with the injection part and is used for realizing the communication between the puncture part and the injection part; the puncture needle 2 is a hollow needle body, the tail part of the puncture needle is fixedly connected with the inner end of the hard hollow catheter 3 and is communicated with the inner cavity of the hard hollow catheter 3, and the puncture needle 2 is punctured into the portal vein under the laparoscope under the control of the clamping groove 4 on the suction tube;
the injection part comprises a connecting pipe 5 and a syringe 6, the connecting pipe 5 is arranged outside the suction tube 1, the head end of the connecting pipe is communicated with the outer end of the hard hollow catheter 3, and the tail end of the connecting pipe is communicated with the injection head of the syringe 6, and the connecting pipe is used for injecting and injecting the pesticide into the portal vein under the laparoscope through the syringe.
Preferably, the front end of the suction tube 1 is designed to be an arc obtuse angle, and a rubber sleeve 8 which can be attached to the front wall of the portal vein is arranged at the front end of the suction tube to avoid tissue or blood vessel damage during fixed negative pressure suction.
Preferably, the puncture needle 2 is fixedly connected with the inner end of the hard hollow catheter 3, and the tip of the puncture needle 2 is aligned with a rubber sleeve at the front end of the suction tube 1, so as to prevent the puncture needle from breaking off due to long time.
Preferably, the suction tube 1 is provided with a chute, and the chute is slidably assembled with a suction tube upper clamping groove 4 which can slide along the axial direction of the suction tube, the hard hollow catheter 3 is slidably connected with the suction tube 1 through the suction tube upper clamping groove 4, and the suction tube upper clamping groove 4 is pushed forwards and backwards along the axial direction of the suction tube 1 so as to be connected with the forward and backward movement of the puncture needle 2, and simultaneously, the telescopic distance of the puncture needle is limited.
Preferably, the puncture needle 2 is an 18G puncture needle.
Example 2 this example differs from example 1 in that: the connecting pipe 5 is a double-channel connecting pipe and is provided with a head end and two tail ends, the head end of the connecting pipe is communicated with the outer end of the hard hollow catheter 3, one tail end of the connecting pipe 5 is communicated with an injection head of an injector and is used for injecting a laxative into a portal vein under the laparoscope through the injector; the other tail end of the connecting pipe is inserted into the pigtail catheter, and the pigtail catheter is inserted into the portal vein to measure the portal vein pressure in real time. The remaining components are the same as in example 1.
The utility model discloses the type specifically uses, operation method does: when the operation is carried out under the laparoscopic, when exposing out the portal vein, can attract a section of thick bamboo laminating at the portal vein antetheca with this apparatus, open the aspirator, pull up the portal vein through the suction that operating room suction equipment produced, promote the advance of attracting a draw-in groove and taking the pjncture needle on the section of thick bamboo, feel after feeling the sense of breaching and discovering that the blood flow appears in binary channels connecting pipe 5, can connect the syringe that is equipped with the medicine and inject the laxative. The negative pressure puncture needle for the portal vein under the laparoscope can effectively and safely puncture the portal vein, and inject indocyanine green dye to realize specific liver segment dyeing, obviously reduce the operation difficulty, improve the operation safety, reduce the operation time and is worthy of clinical popularization.
The embodiments described in this specification are merely illustrative of implementations of the inventive concepts, and the scope of the invention should not be considered limited to the specific forms set forth in the embodiments, but rather the scope of the invention includes equivalent technical means that can be conceived by those skilled in the art based on the inventive concepts.
Claims (5)
1. The utility model provides a door vein negative pressure puncture injection device under peritoneoscope which characterized in that: the puncture injection device comprises a negative pressure device and a puncture injection device, wherein the negative pressure device is a suction tube (1), the front end of the negative pressure device is provided with a rubber sleeve (8) which is used for being attached to the front wall of a portal vein, and the rear end of the negative pressure device is provided with a negative pressure connector (7) which is used for being connected with a negative pressure suction apparatus and a fixing through hole which is used for fixing and allowing a puncture part of the puncture injection device to pass through;
the puncture injection device comprises a puncture part and an injection part, wherein the puncture part consists of a puncture needle (2) and a hard hollow catheter (3), the hard hollow catheter (3) is hermetically arranged at the fixed through hole in a penetrating way and is in sliding connection with the suction cylinder (1), the inner end of the hard hollow catheter is fixedly connected with the puncture needle (2), and the outer end of the hard hollow catheter is communicated with the injection part and is used for realizing the communication between the puncture part and the injection part; the puncture needle is a hollow needle body, the tail part of the puncture needle is fixedly connected with the inner end of the hard hollow catheter (3) and is communicated with the inner cavity of the hard hollow catheter (3), and the puncture needle (2) is punctured into a lower portal vein of the laparoscope under the control of the clamping groove (4) on the suction tube;
the injection part comprises a connecting pipe (5) and an injector (6), the connecting pipe (5) is arranged outside the suction tube (1), the head end of the connecting pipe is communicated with the outer end of the hard hollow catheter (3), and the tail end of the connecting pipe is communicated with the injection head of the injector, so that the connecting pipe is used for injecting and dispensing medicine into the lower portal vein of the laparoscope through the injector (6).
2. The laparoscopic negative portal puncture injection device according to claim 1, wherein: the front end of the suction tube (1) is designed to be an arc obtuse angle, and a rubber sleeve (8) which can be attached to the front wall of the portal vein is arranged at the front end of the suction tube to avoid tissue or blood vessel damage during fixed negative pressure suction.
3. The laparoscopic negative portal puncture injection device according to claim 1, wherein: the puncture needle (2) is fixedly connected with the inner end of the hard hollow catheter (3).
4. The laparoscopic negative portal puncture injection device according to claim 1, wherein: the suction tube (1) is provided with a chute, the chute is provided with an upper clamping groove (4) of the suction tube which can slide along the axial direction of the suction tube in a sliding way, the hard hollow catheter (3) is connected with the suction tube (1) in a sliding way through the upper clamping groove (4) of the suction tube, the upper clamping groove of the suction tube is pushed forwards and backwards along the axial direction of the suction tube so as to be connected with the forward and backward movement of the puncture needle, and the telescopic distance of the puncture needle is limited at the same time.
5. The laparoscopic negative portal puncture injection device according to claim 1, wherein: the connecting pipe (5) is a double-channel connecting pipe and is provided with a head end and two tail ends, the head end of the connecting pipe is communicated with the outer end of the hard hollow catheter, one tail end of the connecting pipe is communicated with an injection head of an injector, and the connecting pipe is used for injecting the laxative into the portal vein under the laparoscope through the injector; the other tail end of the connecting pipe (5) is inserted into the pigtail catheter and intervenes the portal vein through the pigtail catheter to measure the portal vein pressure in real time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021887416.7U CN212521954U (en) | 2020-09-02 | 2020-09-02 | Negative pressure puncture injection device for portal vein under laparoscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021887416.7U CN212521954U (en) | 2020-09-02 | 2020-09-02 | Negative pressure puncture injection device for portal vein under laparoscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212521954U true CN212521954U (en) | 2021-02-12 |
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ID=74528185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021887416.7U Expired - Fee Related CN212521954U (en) | 2020-09-02 | 2020-09-02 | Negative pressure puncture injection device for portal vein under laparoscope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212521954U (en) |
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2020
- 2020-09-02 CN CN202021887416.7U patent/CN212521954U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210212 Termination date: 20210902 |
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| CF01 | Termination of patent right due to non-payment of annual fee |