CN112842487B - Pancreas puncture locator - Google Patents
Pancreas puncture locator Download PDFInfo
- Publication number
- CN112842487B CN112842487B CN202110165270.8A CN202110165270A CN112842487B CN 112842487 B CN112842487 B CN 112842487B CN 202110165270 A CN202110165270 A CN 202110165270A CN 112842487 B CN112842487 B CN 112842487B
- Authority
- CN
- China
- Prior art keywords
- shell
- connecting shaft
- connecting disc
- puncture
- groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3403—Needle locating or guiding means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/10—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges for stereotaxic surgery, e.g. frame-based stereotaxis
- A61B90/11—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges for stereotaxic surgery, e.g. frame-based stereotaxis with guides for needles or instruments, e.g. arcuate slides or ball joints
- A61B90/13—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges for stereotaxic surgery, e.g. frame-based stereotaxis with guides for needles or instruments, e.g. arcuate slides or ball joints guided by light, e.g. laser pointers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/34—Trocars; Puncturing needles
- A61B17/3403—Needle locating or guiding means
- A61B2017/3405—Needle locating or guiding means using mechanical guide means
- A61B2017/3407—Needle locating or guiding means using mechanical guide means including a base for support on the body
Abstract
The invention discloses a pancreas puncture locator which comprises a shell, a sphere and a tube body, wherein the sphere is positioned in the shell, the top and the bottom of the shell are both open, a first connecting shaft and a second connecting shaft are transversely arranged in the shell at intervals respectively, and the first connecting shaft and the second connecting shaft are coaxially arranged; the ball body is positioned between the first connecting shaft and the second connecting shaft, one end of the first connecting shaft is connected with the ball body, and the other end of the first connecting shaft penetrates through the shell and is connected with the shell through a bearing; one end of the second connecting shaft is connected with the ball, and the other end of the second connecting shaft penetrates through the shell and is connected with the shell through a bearing; the pipe body vertically penetrates through the ball body, and two ends of the pipe body are located outside the shell; the shell is externally provided with a fixing frame which is used for fixedly connecting the shell and the human body in a detachable mode so that the shell is fixed on the outer surface of the human body. According to the technical scheme provided by the invention, the angle of puncturing into a human body is not required to be grasped by a doctor by experience, and the operation efficiency is improved.
Description
Technical Field
The invention relates to medical equipment, in particular to a pancreas puncture locator.
Background
Acute pancreatitis is the leading cause of acute abdominal symptoms (acute abdominal pain syndrome) in China. Acute pancreatitis is classified into mild, moderate and severe according to severity. The mortality rate of patients with acute severe pancreatitis in international first-class specialized diagnosis and treatment center is about 20-30%, and the mortality rate of primary hospitals in China is more than 80%.
Acute pancreatitis has two death peak periods in total, namely organ function failure in early stage (within one week of onset), and hemorrhage, infection and intestinal fistula in later stage (after three or four weeks of onset). The most prominent manifestation in the later stage of acute pancreatitis is the appearance of large amounts of necrotic encapsulated effusion around the pancreas. As a digestive organ, the main function of the pancreas is to secrete pancreatic juice, which is a digestive fluid and has the main function of digesting proteins and fats. The most fundamental cause of pancreatitis is the failure of pancreatic juice to normally drain into the gut due to a variety of causes, thereby digesting the pancreas itself and secreting it from all around, digesting the organs (e.g., duodenum, stomach, colon), blood vessels and tissues surrounding the pancreas. Pancreatic juice, inflammatory fluid secreted when the tissues of peripheral organs are digested, pancreas digested and necrotic by pancreatic juice and peripheral tissues digested and necrotic are gathered around the pancreas and wrapped up along with the planned action of inflammation of peritoneum to form an irregular capsule cavity. The most common death causes in the later period, namely bleeding, intestinal fistula and infection, the bleeding, the intestinal fistula and pancreatic juice corrode blood vessels and intestinal ducts, and the causes of infection caused by the bleeding and the intestinal ducts damaged intestinal fistula are also related to peripancreatic necrotic effusion wrapping. Meanwhile, the pancreatic juice corrodes and digests the peripheral organ tissue to form a nutrient-rich culture medium which is very suitable for the growth and proliferation of bacteria, and a large number of colonizers exist in the intestinal tract, so that the bacteria causing the later-stage pancreatic infection under good bacterial growth conditions are usually super bacteria and have all-round drug resistance.
Therefore, for treatment in the later stages of pancreatitis and to avoid patient death, one of the most important treatment modalities is peri-pancreatic necrotic tissue aspiration drainage. Namely, a pipeline is arranged in vitro, and a channel is constructed to directly pass through the sac cavity, thereby achieving the purposes of draining necrotic hydrops in the channel, flushing the pus cavity and treating an infection source. There are two problems. (1) The pancreas is a retroperitoneal organ. It is buried deeply under the hollow organs such as the omentum and stomach. If the capsule cavity around the pancreas is punctured, the normal organs are inevitably passed through, and the organs are passed through according to different paths and angles. It is important to ensure that these "passed-by" organs are not damaged. If the puncture needle penetrates the stomach or the small intestine, the intestinal fistula is directly caused, which belongs to the medical accident. (2) As previously mentioned, the normal human path to penetrate the pancreas, even without pancreatitis, to form peri-pancreatic encapsulation, is very narrow. The abdominal cavity is like a box and is essentially constant in size (the abdomen has some elasticity but is limited), so that the original puncture path becomes narrower when the peri-pancreatic encapsulated pocket is formed. If the patient cares, the normal organs are easily damaged. A straight tube is difficult to puncture the skin, peritoneum and connective tissue along the path. The conventional or only method is to use a hollow fine needle with the length of about 20-30cm and the diameter of 2mm to puncture the position, then to pass a guide wire through the hollow part of the fine needle, and then to withdraw the fine needle. A slightly thicker tube (5mm) was then placed over the guidewire into the balloon lumen.
The inflammatory and organic encapsulation of the peritoneum means that if a foreign body (such as a duct) exists in the abdominal cavity, a tunica peritoneum is gradually formed on the surface of the foreign body, and then a duct formed by the tunica peritoneum, namely a sinus duct, exists even if the duct is removed. Therefore, the main treatment means for peri-pancreatic necrosis (IPN induced pancreatic necrosis) caused by acute pancreatitis comprises puncturing the catheter, flushing the catheter through the catheter, removing the catheter, and placing a surgical instrument through the sinus to remove necrotic infected tissues attached to the inner wall of the pus cavity. Thus, both of these primary treatment modalities are based on successful punctures without damaging the remaining normal organs.
There is a gradual process of understanding the treatment of pancreatitis and IPN, and it was generally thought in the early academic world that the treatment of pancreatitis and IPN should be mainly performed by the traditional surgical open abdominal operation, i.e. opening the abdominal cavity and directly performing debridement. Since 2016, two successive heavy-pound studies were published in the journal New England Journal (NEJM), the best known journal in the medical field, which mainly illustrates two perspectives: (1) theory of delayed intervention: for patients with IPN, the prognosis for surgical intervention after late four weeks was better compared to early intervention. (2) The concept of step-up treatment is as follows: the step ascending means that the intervention with smaller trauma is firstly carried out and then the intervention with larger trauma is carried out, and the step descending means that the intervention with larger trauma is firstly carried out and then the intervention with smaller trauma is carried out. The stair-climbing treatment strategy is superior to the stair-descending treatment strategy. The concept of minimally invasive surgical debridement through sinus by combining the two, namely performing puncture-flushing at the later stage, is commonly recognized by experts worldwide at present. The invention aims at all the root and foundation, namely optimization and innovation of the puncture technology.
The necessity and value of puncturing as described above. Currently, there are two main methods of lancing. The first is the puncture under the guidance of B-ultrasonic, namely, the puncture is conducted by guiding the doctor of the B-ultrasonic imaging department and observing the path of the puncture needle in real time through B-ultrasonic. However, the method has the following defects that (1) the B ultrasonic has better distinction degree only on hollow organs and parenchymal organs, connective tissues, fascia and the like on a puncture path are difficult to identify, and the B ultrasonic is very easy to cause injury. (2) The requirement of B-ultrasonic puncture on imaging doctors and puncture doctors is extremely high, and the hospital is one of the centers with the highest treatment level in China, and only one doctor in the whole hospital has the B-ultrasonic guiding capability. It is basically impossible for a doctor with a sufficient level of experience to perform the operation in a lower-level hospital. Therefore, B-ultrasound guided peri-pancreatic puncture drainage is typically only used by critically ill patients who cannot leave the ICU, but only perform bedside procedures. The currently common method is CT guided puncture. The process is as follows: the patient scans in real time in a CT room, and a specialist reads the film on site to evaluate the puncture path. A plurality of metal strips are placed on the body of a patient, and the patient is scanned again, so that certain plane positioning effect is achieved due to the fact that the metal strips can be developed on the CT. Then, according to the operation experience, a special doctor determines a puncture point on the corresponding metal strip, and then judges and pre-estimates the entering angle of the puncture needle for the bare-handed blind puncture.
Because the patient can not keep completely still in the operation process and the puncture brings great pain, the patient usually does not change the body position by self. The result of the last CT scan cannot reflect the real-time situation. The CT scanning needs to be carried out for many times, the pulling and the pulling exchange of the puncture needle, the guide wire and the implanted pipeline need to be carried out for many times by bare hands, the angle is kept by adjusting the path, the angle is kept fixed in the operation process, the operation burden of a doctor is large in the operation process, and the operation process of a patient is very painful. Therefore, it is very meaningful to design a pancreas puncture locator for this operation.
Disclosure of Invention
The invention mainly aims to provide a pancreas puncture locator, aiming at solving the problem that pancreas puncture depends on personal experience of doctors.
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
a pancreas puncture locator comprises a shell, a sphere and a tube body, wherein the sphere is positioned in the shell, the top and the bottom of the shell are both open, a first connecting shaft and a second connecting shaft are transversely arranged in the shell at intervals respectively, and the first connecting shaft and the second connecting shaft are coaxially arranged; the ball body is positioned between the first connecting shaft and the second connecting shaft, one end of the first connecting shaft is connected with the ball body, and the other end of the first connecting shaft penetrates through the shell and is connected with the shell through a bearing; one end of the second connecting shaft is connected with the ball, the other end of the second connecting shaft penetrates through the shell and is connected with the shell through a bearing, and the first connecting shaft or the second connecting shaft is used for driving the ball to rotate so as to enable the ball to rotate along the direction from one opening to the other opening; the tube body vertically penetrates through the ball body, two ends of the tube body are located outside the shell, the tube body is used for driving the ball body to rotate, and the angle between the tube body and a puncture point of a human body is adjusted, so that a puncture instrument penetrates into the puncture point through the tube body; the shell is externally provided with a fixing frame, and the fixing frame is used for fixedly connecting the shell and the human body in a detachable mode, so that the shell is fixed on the outer surface of the human body.
Preferably, a rectangular through groove is formed in the vertical direction of the sphere, and the rectangular through groove extends along the first connecting shaft to the second connecting shaft; the tube body penetrates through the rectangular through groove, the outer wall surface of the tube body is connected with the inner wall surface of the rectangular through groove through a connecting piece, and the tube body is used for swinging back and forth between the first connecting shaft and the second connecting shaft by taking the connecting piece as a center so as to adjust the angle between the tube body and a puncture point of a human body.
Preferably, the connecting piece comprises a first connecting disc, a second connecting disc and a pipe sleeve, and the pipe sleeve is sleeved on the outer wall surface of the pipe body; the first connecting disc and the second connecting disc are symmetrically arranged along the pipe body, one side of the first connecting disc facing the pipe body is connected with one side of the pipe sleeve, and one side of the second connecting disc facing the pipe body is connected with the other side of the pipe sleeve; a plurality of elastic clamping blocks are respectively arranged on one sides of the first connecting disc and the second connecting disc, which are far away from the pipe body, the elastic clamping blocks on the surface of the first connecting disc are arranged into a circular ring at intervals, the elastic clamping blocks on the surface of the second connecting disc are arranged into a circular ring at intervals, and a circular ring formed by the elastic clamping blocks on the surface of the first connecting disc and a circular ring formed by the elastic clamping blocks on the surface of the second connecting disc are the same and are coaxially arranged; the side wall of each elastic fixture block, facing the first connecting disc, of the rectangular through groove is provided with a plurality of first clamping grooves, the first clamping grooves are arranged at intervals to form a circular ring, a circular ring formed by each elastic fixture block on the surface of the first connecting disc is the same as and coaxially arranged with a circular ring formed by each first clamping groove, and one side of each elastic fixture block, arranged on the first connecting disc, is used for being attached to one side, provided with each first clamping groove, of the rectangular through groove, so that each elastic fixture block is clamped into one first clamping groove; the side wall of each elastic clamping block, which faces the second connecting disc, of the rectangular through groove is provided with a plurality of second clamping grooves, the second clamping grooves are arranged at intervals to form a circular ring, a circular ring formed by the elastic clamping blocks on the surface of the second connecting disc and the circular ring formed by the second clamping grooves are the same and coaxially arranged, one side, which is provided with the elastic clamping blocks, of the second connecting disc is used for being attached to one side, which is provided with the second clamping grooves, of the rectangular through groove, so that the elastic clamping blocks are respectively clamped into one second clamping groove.
Preferably, each elastic fixture block is a hemispherical fixture block; each first clamping groove and each second clamping groove are hemispherical clamping grooves respectively.
Preferably, the circle center of a ring formed by the elastic clamping blocks on the surface of the first connecting disc and the circle center of the first connecting disc are coaxially arranged; the circle center of a ring formed by the elastic clamping blocks on the surface of the second connecting disc and the circle center of the second connecting disc are coaxially arranged.
Preferably, the outer surface of the sphere is provided with a plurality of limiting holes, each limiting hole is respectively positioned on one side of the sphere facing the first connecting shaft, the limiting holes are arranged at intervals in a ring shape, and the circle center of the ring formed by the limiting holes and the central axis of the first connecting shaft are coaxially arranged; the shell is provided with a connecting through hole, and the connecting through hole and one of the limiting holes are coaxially arranged; the shell is externally provided with a bolt, and the bolt is used for sequentially penetrating through the connecting through hole and one of the limiting holes so as to limit the rotation of the sphere by the bolt.
Preferably, the fixing frame includes a plurality of fixing rods, each of the fixing rods is disposed at intervals along the outer surface of the housing, one end of each of the fixing rods is connected to the outer surface of the housing, and the other end of each of the fixing rods extends toward the bottom of the housing, so that the end of each of the fixing rods away from the housing is located on the side of the bottom of the housing away from the ball; and one end of each fixing rod, which is far away from the shell, is respectively provided with a sucker, and the sucker is used for adsorbing a human body so that the shell can be detachably fixed on the outer surface of the human body.
Preferably, an infrared transmitter is arranged at the end part of the tube body close to the bottom of the shell, and the infrared transmitter is used for transmitting infrared rays to the puncture point so that the tube body can be positioned on the puncture point.
Preferably, a light source is arranged at the bottom of the shell and is used for irradiating the puncture point area.
Compared with the prior art, the invention at least has the following beneficial effects:
after the doctor confirms puncture point and puncture angle through type-B ultrasonic, the rethread promotes the body and makes the spheroid rotate along each connecting axle to the angle between adjustment body and the puncture point, the doctor again with puncture instrument through puncture in the body get into the puncture point, need not the doctor like this and rely on experience to hold the angle of stabbing into human body, improved the efficiency of operation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic diagram of a pancreas puncture locator according to an embodiment of the present invention;
FIG. 2 is a schematic top view of the structure of FIG. 1;
FIG. 3 is a schematic structural view of a cross-section A-A of FIG. 1 with the mount, the connector and the tube removed;
fig. 4 is a schematic view of the structure of the connector and the pipe connection.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 1 | |
11 | First connecting |
| 12 | |
13 | |
| 14 | |
2 | |
| 21 | Rectangular through |
22 | First card slot |
| 23 | A first fixing through |
24 | Limiting |
| 3 | |
4 | Connecting |
| 41 | |
42 | |
| 43 | |
44 | |
| 45 | |
5 | |
| 51 | |
52 | Suction cup |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a pancreas puncture locator.
As shown in fig. 1 to 4, the pancreas puncture locator comprises a shell 1, a ball 2 and a tube 3, wherein the ball 2 is positioned in the shell 1, the top and the bottom of the shell 1 are both open, a first connecting shaft 11 and a second connecting shaft 12 are respectively arranged in the shell 1 at intervals, and the first connecting shaft 11 and the second connecting shaft 12 are coaxially arranged; the ball body 2 is positioned between the first connecting shaft 11 and the second connecting shaft 12, one end of the first connecting shaft 11 is connected with the ball body 2, and the other end of the first connecting shaft 11 penetrates through the shell 1 and is connected with the shell 1 through a bearing; one end of the second connecting shaft 12 is connected with the ball 2, the other end of the second connecting shaft 12 penetrates through the shell 1 and is connected with the shell 1 through a bearing, and the first connecting shaft 11 or the second connecting shaft 12 is used for driving the ball 2 to rotate so that the ball 2 rotates towards the other opening direction along one opening; the tube body 3 vertically penetrates through the ball body 2, two ends of the tube body 3 are positioned outside the shell 1, the tube body 3 is used for driving the ball body 2 to rotate, and the angle between the tube body 3 and a puncture point of a human body is adjusted, so that a puncture instrument penetrates into the puncture point through the tube body 3; the fixing frame 5 is arranged outside the shell 1, and the fixing frame 5 is used for detachably and fixedly connecting the shell 1 with a human body so as to fix the shell 1 on the outer surface of the human body.
After the doctor confirms puncture point and puncture angle through type-B ultrasonic, rethread promotes body 3 and makes spheroid 2 rotate along each connecting axle to the angle between adjustment body 3 and the puncture point, the doctor again with puncture instrument through puncture entering puncture point in the body 3, need not the doctor like this and hold the angle of stabbing into human body by experience, improved the efficiency of operation.
Referring to fig. 2 and 3, a rectangular through groove 21 is formed in the vertical direction of the sphere 2, and the rectangular through groove 21 extends along the first connecting shaft 11 to the second connecting shaft 12; the tube body 3 penetrates through the rectangular through groove 21, the outer wall surface of the tube body 3 is connected with the inner wall surface of the rectangular through groove 21 through the connecting piece 4, and the tube body 3 is used for swinging back and forth between the first connecting shaft 11 and the second connecting shaft 12 by taking the connecting piece 4 as a center to adjust the angle between the tube body 3 and a puncture point of a human body. The connecting piece 4 and the rectangular through groove 21 are arranged to enable the angle of the pipe body 3 to be adjusted along the rotation direction of the ball body 2, and meanwhile, the angle of the pipe body 3 can be adjusted back and forth between the first connecting shaft 11 and the second connecting shaft 12, so that the angle of the pipe body 3 can be adjusted in multiple directions.
Referring to fig. 2 to 4, the connecting member 4 includes a first connecting plate 42, a second connecting plate 43 and a sleeve 41, and the sleeve 41 is sleeved on the outer wall surface of the pipe body 3; the first connection disc 42 and the second connection disc 43 are symmetrically arranged along the pipe body 3, one side of the first connection disc 42 facing the pipe body 3 is connected with one side of the pipe sleeve 41, and one side of the second connection disc 43 facing the pipe body 3 is connected with the other side of the pipe sleeve 41; a plurality of elastic clamping blocks 44 are respectively arranged on one sides of the first connecting disc 42 and the second connecting disc 43, which are far away from the pipe body 3, the elastic clamping blocks 44 on the surface of the first connecting disc 42 are arranged at intervals in a ring shape, the elastic clamping blocks 44 on the surface of the second connecting disc 43 are arranged at intervals in a ring shape, and a ring formed by the elastic clamping blocks 44 on the surface of the first connecting disc 42 and a ring formed by the elastic clamping blocks 44 on the surface of the second connecting disc 43 are the same and are coaxially arranged; the side wall of the rectangular through groove 21, facing the first connecting disc 42, provided with each elastic fixture block 44 is provided with a plurality of first clamping grooves 22, the first clamping grooves 22 are arranged at intervals in a ring shape, a ring formed by each elastic fixture block 44 on the surface of the first connecting disc 42 is the same as and coaxially arranged with a ring formed by each first clamping groove, one side of the first connecting disc 42, provided with each elastic fixture block 44, is used for being attached to one side of the rectangular through groove 21, provided with each first clamping groove 22, so that each elastic fixture block 44 is clamped into one first clamping groove 22; the side wall of each elastic clamping block 44, facing the second connecting disc 43, of the rectangular through groove 21 is provided with a plurality of second clamping grooves, the second clamping grooves are arranged at intervals in a ring shape, a ring formed by each elastic clamping block 44 on the surface of the second connecting disc 43 and the ring formed by each second clamping groove are the same and coaxially arranged, and one side, provided with each elastic clamping block 44, of the second connecting disc 43 is used for being attached to one side, provided with each second clamping groove, of the rectangular through groove 21, so that each elastic clamping block 44 is clamped into one second clamping groove. When the tube body 3 rotates, each elastic clamping block 44 slides into another adjacent clamping groove along the rotation direction of the tube body 3, because the elastic clamping block 44 has certain elasticity, the elastic clamping block 44 can move from one clamping groove to another clamping groove, when the tube body 3 needs to be fixed, each elastic clamping block 44 is clamped into the corresponding clamping groove, so that the tube body 3 can guarantee a corresponding angle for a long time.
Specifically, the number of the elastic blocks 44 on the surface of the first connecting disc 42 is equal to the number of the first slots 22; the number of the elastic blocks 44 on the surface of the second connecting disc 43 is equal to the number of the second clamping grooves.
Specifically, the axial direction of the center of the circular ring formed by the first engaging grooves 22 of the tube 3 is perpendicular to the axial direction of the first connecting shaft 11.
Specifically, the angle difference between the adjacent elastic blocks 44 is one of 1 °, 2 °, 5 ° and 10 °. So that the physician can refine the angle of oscillation of tubular body 3.
Specifically, connecting screw holes 45 are formed in the sides, away from the pipe body 3, of the first connecting disc 42 and the second connecting disc 43, one of the connecting screw holes 45 is located at the center of the circle of the first connecting disc 42, and the other connecting screw hole 45 is located at the center of the circle of the second connecting disc 43; the ball body 2 is provided with a first fixing through hole 23 and a second fixing through hole respectively, the first fixing through hole 23, the second fixing through hole, a first connecting disc 42 and a second connecting disc 43 are coaxially arranged, two screw rods 13 are arranged outside the ball body 2, one screw rod 13 is used for penetrating through the first fixing through hole 23 and a connecting screw hole 45 of the first connecting disc 42 for threaded connection, and the outer wall surface of the screw rod 13 is attached to the inner wall surface of the first fixing through hole 23 so that the screw rod 13 rotates along the inner wall surface of the first fixing through hole 23; the other screw 13 is threaded through the first fixing through hole 23 and the connecting screw hole 45 of the second connecting disc 43, and the outer wall surface of the screw 13 is attached to the inner wall surface of the second fixing through hole, so that the screw 13 rotates along the inner wall surface of the second fixing through hole. The arrangement of the screw 13 can prevent the elastic blocks 44 and the clamping grooves from being dislocated when the pipe body 3 rotates, so that the connecting piece 4 and the pipe body 3 slide out of the rectangular through groove 21.
Each elastic fixture block 44 is a hemispherical fixture block; each of the first engaging grooves 22 and each of the second engaging grooves are hemispherical engaging grooves. The hemispherical arrangement facilitates the sliding of the resilient latch 44.
The circle center of a circular ring formed by each elastic clamping block 44 on the surface of the first connecting disc 42 and the circle center of the first connecting disc 42 are coaxially arranged; the center of a circle formed by the elastic blocks 44 on the surface of the second connecting disc 43 is coaxial with the center of the circle of the second connecting disc 43.
Referring to fig. 1 and 2, a plurality of limiting holes 24 are formed in the outer surface of the sphere 2, each limiting hole 24 is located on one side of the sphere 2 facing the first connecting shaft 11, the limiting holes 24 are arranged at intervals in a circular ring shape, and the circle center of the circular ring formed by the limiting holes 24 is coaxial with the central axis of the first connecting shaft 11; the shell 1 is provided with a connecting through hole which is coaxially arranged with one of the limiting holes 24; the shell 1 is externally provided with a bolt 14, and the bolt 14 is used for sequentially passing through the connecting through hole and one of the limiting holes 24, so that the bolt 14 limits the rotation of the ball 2. The use of the latch 14 allows the position of the rotation of the ball 2 to be fixed, so that the rotation angle of the ball 2 can be kept fixed.
Specifically, the angle difference between adjacent stopper holes 24 is one of 1 °, 2 °, 5 °, and 10 °. So that the physician can refine the angle of rotation of the sphere 2.
The fixing frame 5 comprises a plurality of fixing rods 51, each fixing rod 51 is arranged along the outer surface of the shell 1 at intervals, one end of each fixing rod 51 is connected with the outer surface of the shell 1, and the other end of each fixing rod 51 extends towards the bottom of the shell 1, so that one end of each fixing rod 51, which is far away from the shell 1, is positioned at one side of the bottom of the shell 1, which is far away from the ball 2; one end of each fixing rod 51 far away from the shell 1 is respectively provided with a suction cup 52, and the suction cups 52 are used for absorbing the human body, so that the shell 1 can be detachably fixed on the outer surface of the human body. The shell 1 and the human body are fixed through a plurality of suction cups 52, so that the angle of the tube body 3 is kept constant during the puncture process of a doctor.
The end of the tube 3 near the bottom of the housing 1 is provided with an infrared transmitter (not shown) for emitting infrared rays to the puncture site to position the tube 3 relative to the puncture site.
A light source (not shown) is provided at the bottom of the housing 1 for illuminating the puncture site area.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. A pancreas puncture positioner is characterized by comprising a shell, a sphere and a tube body, wherein the sphere is positioned in the shell, the top and the bottom of the shell are both open, a first connecting shaft and a second connecting shaft are respectively arranged in the shell at intervals in the transverse direction, and the first connecting shaft and the second connecting shaft are coaxially arranged; the ball body is positioned between the first connecting shaft and the second connecting shaft, one end of the first connecting shaft is connected with the ball body, and the other end of the first connecting shaft penetrates through the shell and is connected with the shell through a bearing; one end of the second connecting shaft is connected with the ball, the other end of the second connecting shaft penetrates through the shell and is connected with the shell through a bearing, and the first connecting shaft or the second connecting shaft is used for driving the ball to rotate so as to enable the ball to rotate along the direction from one opening to the other opening; the tube body vertically penetrates through the ball body, two ends of the tube body are located outside the shell, the tube body is used for driving the ball body to rotate, and the angle between the tube body and a puncture point of a human body is adjusted, so that a puncture instrument penetrates into the puncture point through the tube body; a fixing frame is arranged outside the shell and used for detachably and fixedly connecting the shell and the human body so as to fix the shell and the outer surface of the human body; a rectangular through groove is formed in the vertical direction of the sphere, and the rectangular through groove extends along the direction of the first connecting shaft to the direction of the second connecting shaft; the tube body penetrates through the rectangular through groove, the outer wall surface of the tube body is connected with the inner wall surface of the rectangular through groove through a connecting piece, and the tube body is used for swinging back and forth between the first connecting shaft and the second connecting shaft by taking the connecting piece as a center so as to adjust the angle between the tube body and a puncture point of a human body; the connecting piece comprises a first connecting disc, a second connecting disc and a pipe sleeve, and the pipe sleeve is sleeved on the outer wall surface of the pipe body; the first connecting disc and the second connecting disc are symmetrically arranged along the pipe body, one side of the first connecting disc facing the pipe body is connected with one side of the pipe sleeve, and one side of the second connecting disc facing the pipe body is connected with the other side of the pipe sleeve; a plurality of elastic clamping blocks are respectively arranged on one sides of the first connecting disc and the second connecting disc, which are far away from the pipe body, the elastic clamping blocks on the surface of the first connecting disc are arranged into a circular ring at intervals, the elastic clamping blocks on the surface of the second connecting disc are arranged into a circular ring at intervals, and a circular ring formed by the elastic clamping blocks on the surface of the first connecting disc and a circular ring formed by the elastic clamping blocks on the surface of the second connecting disc are the same and are coaxially arranged; the side wall of each elastic fixture block, facing the first connecting disc, of the rectangular through groove is provided with a plurality of first clamping grooves, the first clamping grooves are arranged at intervals to form a circular ring, a circular ring formed by each elastic fixture block on the surface of the first connecting disc is the same as and coaxially arranged with a circular ring formed by each first clamping groove, and one side of each elastic fixture block, arranged on the first connecting disc, is used for being attached to one side, provided with each first clamping groove, of the rectangular through groove, so that each elastic fixture block is clamped into one first clamping groove; the side wall of each elastic clamping block, which faces the second connecting disc, of the rectangular through groove is provided with a plurality of second clamping grooves, the second clamping grooves are arranged at intervals to form a circular ring, a circular ring formed by the elastic clamping blocks on the surface of the second connecting disc and the circular ring formed by the second clamping grooves are the same and coaxially arranged, one side, which is provided with the elastic clamping blocks, of the second connecting disc is used for being attached to one side, which is provided with the second clamping grooves, of the rectangular through groove, so that the elastic clamping blocks are respectively clamped into one second clamping groove.
2. The pancreas puncture locator of claim 1, wherein each of the resilient clips is a hemispherical clip; each first clamping groove and each second clamping groove are hemispherical clamping grooves respectively.
3. The pancreas puncture locator according to claim 1, wherein the center of the circle formed by each elastic fixture block on the surface of the first connecting disc is coaxial with the center of the circle of the first connecting disc; the circle center of a ring formed by the elastic clamping blocks on the surface of the second connecting disc and the circle center of the second connecting disc are coaxially arranged.
4. The pancreas puncture locator according to any one of claims 1 to 3, wherein a plurality of limiting holes are formed in the outer surface of the sphere, each limiting hole is respectively located on one side of the sphere facing the first connecting shaft, the limiting holes are arranged at intervals in a circular ring shape, and the circle center of the circular ring formed by the limiting holes is coaxially arranged with the central axis of the first connecting shaft; the shell is provided with a connecting through hole, and the connecting through hole and one of the limiting holes are coaxially arranged; the shell is externally provided with a bolt, and the bolt is used for sequentially penetrating through the connecting through hole and one of the limiting holes so as to limit the rotation of the sphere by the bolt.
5. The pancreas puncture locator according to any one of claims 1-3, wherein the fixing frame comprises a plurality of fixing rods, each fixing rod is arranged at intervals along the outer surface of the housing, one end of each fixing rod is connected with the outer surface of the housing, and the other end of each fixing rod extends towards the bottom of the housing, so that one end of each fixing rod, far away from the housing, is located on the side, away from the sphere, of the bottom of the housing; and one end of each fixing rod, which is far away from the shell, is respectively provided with a sucker, and the sucker is used for adsorbing a human body so that the shell can be detachably fixed on the outer surface of the human body.
6. A pancreatic puncture locator according to any one of claims 1-3 wherein the end of the tube adjacent the bottom of the housing is provided with an infrared transmitter for transmitting infrared radiation to the puncture site to locate the tube relative to the puncture site.
7. The pancreatic puncture locator of claim 1, wherein a light source is disposed at the bottom of the housing and illuminates the puncture site area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110165270.8A CN112842487B (en) | 2021-02-06 | 2021-02-06 | Pancreas puncture locator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110165270.8A CN112842487B (en) | 2021-02-06 | 2021-02-06 | Pancreas puncture locator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112842487A CN112842487A (en) | 2021-05-28 |
| CN112842487B true CN112842487B (en) | 2021-12-14 |
Family
ID=75988783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110165270.8A Active CN112842487B (en) | 2021-02-06 | 2021-02-06 | Pancreas puncture locator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112842487B (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE428360T1 (en) * | 2002-09-05 | 2009-05-15 | Radi Medical Devices Ab | GUIDE FOR A MEDICAL DEVICE |
| CN102090932B (en) * | 2011-03-22 | 2013-01-16 | 上海交通大学 | CT guided lung puncture positioning instrument |
| CN104546132A (en) * | 2014-03-11 | 2015-04-29 | 尚鸣异 | Detachable image-guided puncture device |
| US10702257B2 (en) * | 2015-09-29 | 2020-07-07 | Ethicon Llc | Positioning device for use with surgical instruments |
| CN108608039A (en) * | 2018-04-28 | 2018-10-02 | 宁波辉励铭诚汽车零部件有限公司 | A kind of car handrail punching fixing device |
| CN211985602U (en) * | 2020-01-20 | 2020-11-24 | 惠安极地星空科技有限公司 | Positioning device for puncture |
| CN111772746A (en) * | 2020-08-11 | 2020-10-16 | 山东大学齐鲁医院(青岛) | Positioning device for nerve block anesthesia needle clinic |
| CN112244958A (en) * | 2020-10-30 | 2021-01-22 | 贵阳市第四人民医院 | B-ultrasonic positioning puncture device |
-
2021
- 2021-02-06 CN CN202110165270.8A patent/CN112842487B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN112842487A (en) | 2021-05-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Hudson et al. | Emphysematous pyelonephritis: successful management by percutaneous drainage | |
| Witt et al. | Minimally invasive options for salivary calculi | |
| CA2012535C (en) | Remote fiber optic medical procedure and device | |
| US20120089089A1 (en) | Methods of magnetically guiding and axially aligning distal ends of surgical devices | |
| US9211163B1 (en) | Apparatus and method for minimally invasive intracranial hematoma evacuation with real-time assessment of clot reduction | |
| Singh et al. | Sialendoscopy: introduction, indications and technique | |
| Bodakci et al. | Minipercutaneous nephrolithotomy in infants: a single-center experience in an endemic region in Turkey | |
| BRPI1105608A2 (en) | guide catheter composed of memory polymers | |
| Friedland et al. | Endoscopic necrosectomy of organized pancreatic necrosis: a currently practiced NOTES procedure | |
| CN112842487B (en) | Pancreas puncture locator | |
| RU2689853C2 (en) | Method of surgical minimally invasive treatment of nephrolithiasis in adults | |
| Chen et al. | Percutaneous transhepatic cholangioscopy | |
| US8435226B2 (en) | Catheter | |
| CN210056096U (en) | Percutaneous colon-passing appendicoscope system | |
| RU2718307C2 (en) | Method for percutaneous endoscopic pelvic tumor removal by a single unit | |
| Wilson et al. | Sialendoscopy: Endoscopic Approach to benign salivary gland diseases | |
| Clayman et al. | Bedside flexible cystoscopy: an approach to the critically ill patient | |
| Paddle et al. | Retained foreign body following pleural drainage with a small-bore catheter | |
| RU2355436C1 (en) | Method of surgical liver echinococcosis treatment | |
| RU158259U1 (en) | DEVICE FOR FORMING A PUNCTIONAL COMPRESSION ANASTOMOSIS BETWEEN THE HOLLOW BODIES | |
| Song et al. | The utility of combined neuroendoscopic-and laparoscopic-assisted ventriculo-peritoneal shunt as a treatment for patients with communicating hydrocephalus | |
| RU137670U1 (en) | DEVICE FOR RETURNING BILES TO THE DIGESTIVE TREATMENT IN PATIENTS WITH MECHANICAL JAUNDICE | |
| CN216495242U (en) | Arthroscope guide rod | |
| RU2750183C2 (en) | Method for endoscopic drainage-free minimally invasive treatment of nephrolithiasis in children | |
| RU2755226C1 (en) | Method for percutaneous puncture access into the renal cavity system in case of percutaneous nephrolitholapaxy |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |