CN211751341U - Novel minimally invasive dilation drainage kit - Google Patents

Abstract

The utility model discloses a novel minimally invasive dilation drainage kit, which comprises a puncture guide needle, a dilation tube and a guide wire, wherein the puncture guide needle comprises a needle tube, a needle joint and a needle tip which are respectively positioned at two ends of the needle tube, and the dilation tube comprises a tube body, a tube joint and a tube tip which are respectively positioned at two ends of the tube body; the needle tube is of a stainless steel hollow structure, an imaging structure is arranged in the tip end of the needle, and the imaging structure is inserted into the needle tube; the seal wire can penetrate the follow in the syringe needle, the expansion pipe be equipped with run through the body with the passageway at pipe point end, for the seal wire gets into, the expansion pipe includes multiple specification, every specification the expansion pipe the pipe diameter of body is different. The method has the advantages of high strength, high precision, visualization and convenience in positioning, and can reduce the risks of repeated expansion, incomplete expansion, too deep puncture or channel loss.

Description

Novel minimally invasive dilation drainage kit

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a novel minimal invasive dilation drainage kit.

Background

The digestive system and the urinary system of the human body have calculus and other pathological changes due to various reasons, if diagnosis and treatment are not carried out for a long time, abdominal pain occurs to further cause inflammation, and finally, the life safety of the human body is seriously threatened. At present, percutaneous nephroscope and ureteroscope operations basically eliminate open operation stone removal due to the advantages of no abdominal opening, small wound, small risk, quick recovery, few complications and the like, and become a main mode for diagnosing various stone diseases. The percutaneous nephroscope lithotripsy is based on the premise that a channel between skin and kidney is established, and instruments used for establishing the channel in the prior art are mainly dilation drainage kits. The dilation and drainage kit is an instrument for establishing a skin and kidney working channel by puncturing and dilating through a percutaneous nephroscope technology for clinical renal calculus, hydronephrosis and other diseases. The minimally invasive dilation drainage kit is mainly configured to be an dilation tube, a peeling sheath, a drainage tube, a fixator, a guide wire and a puncture guide needle, wherein the puncture guide needle is used for percutaneous puncture to enter a kidney to establish a channel after confirming a puncture point, the guide wire is placed through the puncture guide needle, the dilator performs gradual dilation along the guide wire, and the guide wire has certain tension after being straightened. Complications of percutaneous nephroscopy include bleeding, injury to adjacent organs, failure in removing calculus, channel loss and the like, and the complications are caused by selection of instruments, accuracy of puncture parts, calculus positions and the like.

The accuracy of the puncture part of a puncture guide needle in the existing dilation drainage kit is not high, and complications such as bleeding, injury to adjacent visceral organs and the like are easily caused; the strength of the dilating tube is not high, the guide wire can not be positioned, and the dilating tube has great influence on complications such as bleeding, lithotomy failure, channel loss and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a novel wicresoft expands drainage external member, it has solved some above-mentioned problems at least.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a novel minimally invasive dilation drainage kit comprises a puncture guide needle, a dilation tube and a guide wire, wherein the puncture guide needle comprises a needle tube, a needle joint and a needle tip which are respectively positioned at two ends of the needle tube, and the dilation tube comprises a tube body, a tube joint and a tube tip which are respectively positioned at two ends of the tube body; the needle tube is of a stainless steel hollow structure, an imaging structure is arranged in the tip end of the needle, and the imaging structure is inserted into the needle tube; the seal wire can penetrate the follow in the syringe needle, the expansion pipe be equipped with run through the body with the passageway at pipe point end, for the seal wire gets into, the expansion pipe includes multiple specification, every specification the expansion pipe the pipe diameter of body is different.

The method is further optimized as follows: the surface of one end of the needle tube close to the needle tip is provided with a plurality of pinholes or textures.

The method is further optimized as follows: and the surface of one end of the needle tube close to the needle tip is provided with threads or annular grains.

The method is further optimized as follows: the pipe body is provided with a reinforcing piece to reinforce the strength of the pipe body.

The method is further optimized as follows: the reinforcing piece is embedded on the inner wall or the outer wall of the pipe body, and/or the reinforcing piece is a stainless steel pipe.

The method is further optimized as follows: the tip of the tube is in a shape of a fillet.

The method is further optimized as follows: : and scale marks are arranged on the surface of the guide wire.

The method is further optimized as follows: the needle tube is internally provided with a hollow needle core, and the imaging structure is inserted into the needle core.

The method is further optimized as follows: the imaging structure is a camera assembly or an optical fiber assembly.

The utility model discloses following beneficial effect has: 1. through set up the formation of image structure in the puncture guide needle, for example camera subassembly or optic fibre subassembly, install at the needle point, can directly observe the pjncture needle through the dissection aspect under the guide of B ultrasonic like this, let the art person can effectually avoid probably leading to hemorrhagic high-risk area, select suitable angle and route and get into the kidney, really accomplish the ideal puncture state of calyx fornix portion needle insertion, repeated puncture has effectively been avoided, the risk of bleeding in the vice damage of puncture and the art has been reduced, the operation time has been shortened, the operation safety has been improved. 2. Set up to non-rounding off levelly and smoothly form on the surface through the needle tubing is close to the one end of needle point end, for example set up a plurality of pinholes, be equipped with screw thread or ring line, can reflect to different directions when the ultrasonic wave reaches the cross, and ultrasonic probe receives the sound wave of reflection back more easily, guarantees to know the image of appearing more clearly, precision when more guaranteeing the puncture, improves the security of operation. 3. The stainless steel pipe is embedded in the pipe body inside or outside the expansion pipe, so that the hardness of the expansion pipe is improved to enhance the use hand feeling, the puncture force is improved, the puncture precision is ensured, and the risks of multiple expansion, channel loss and the like are reduced. 4. The scale marks are designed on the surface of the guide wire, so that the guide wire is ensured to be intuitively reflected in the eyes of an operator when the guide wire keeps tension, straightens and guides a catheter, the positioning can be timely adjusted and kept, and the risks of stone extraction failure, channel loss and the like caused by the positioning change of the guide wire are reduced. 5. The tube tip of the expansion tube is designed into a circular angle shape, and when the tube tip is expanded for the second time, the tube tip after smooth treatment can be expanded to the existing channel, so that new damage to a patient is avoided, the occurrence of complications is reduced, and the pain of the patient is relieved.

Drawings

Fig. 1 is a schematic structural view of a puncture guide needle of a novel minimally invasive dilation drainage kit according to an embodiment of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

fig. 3 is a partial structural view of a puncture guiding needle in a novel minimally invasive dilation drainage kit according to an embodiment of the present invention;

fig. 4 is a partial structural view of a puncture guiding needle in a novel minimally invasive dilation drainage kit according to another embodiment of the present invention;

FIG. 5 is a partial schematic structural view of a puncture guide needle in a novel minimally invasive dilation drainage kit according to yet another embodiment of the present invention;

fig. 6 is a schematic structural view of an expansion tube in the novel minimally invasive dilation drainage kit according to an embodiment of the present invention;

FIG. 7 is a schematic view of the structure of the dilating tube of the novel minimally invasive dilation drainage kit according to another embodiment of the present invention;

fig. 8 is a schematic structural view of a guide wire in a novel minimally invasive dilation drainage kit according to an embodiment of the present invention;

in the figure, 1, a puncture guide needle; 2. an expansion tube; 3. a guide wire; 11. a needle tube; 12. a needle tip; 13. a needle joint; 14. an imaging structure; 15. a needle core; 111. a pinhole; 112. a thread; 113. ring lines; 21. a pipe body; 22. a tube tip; 23. a pipe joint; 24. a reinforcement; 31. and (5) scale marking.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

In an embodiment of the present invention, referring to fig. 1, 2, 6 and 8, a novel minimally invasive dilation drainage kit is provided, which includes a puncture guiding needle 1, a dilation tube 2 and a guide wire 3, wherein the puncture guiding needle 1 includes a needle tube 11, a needle joint 13 and a needle tip 12 respectively located at two ends of the needle tube 11, and the dilation tube 2 includes a tube body 21, a tube joint 23 and a tube tip 22 respectively located at two ends of the tube body 21; the needle tube 11 is a stainless steel hollow structure, an imaging structure 14 is arranged in the needle tip 12, and the imaging structure 14 is inserted into the needle tube 11; optionally, a hollow needle core 15 is disposed in the needle tube 11, and the imaging structure 14 is inserted into the needle core 15. The imaging structure 14 is preferably a camera assembly or an optical fiber assembly, the camera assembly can timely acquire the internal condition of the puncture site and display the internal condition on the monitoring system in real time, and the optical fiber assembly can receive the change of the light of the puncture site to transmit the light signal, so that the real-time display on the monitoring system is realized. Therefore, a doctor can simultaneously observe the puncture condition during puncture, a bleeding high-risk area is avoided, the puncture direction, angle and depth are accurately selected, the situation that the puncture position is not good, the puncture is too deep or too shallow is avoided, the dependence on the hand feeling of the doctor is reduced, the puncture precision is ensured, and the damage to a patient caused by repeated puncture when the puncture is not in place is avoided; when special conditions occur, doctors can also quickly change the operation scheme by observing the puncture points and combining the experience of the doctors, so that the risk is avoided; accurate puncture can effectively reduce the appearance of complication.

When an operation is performed, the puncture guide needle 1 confirms a puncture point and then enters a kidney through percutaneous puncture to establish a channel, the guide wire 3 penetrates into the needle tube 11 from the needle connector 13, then the puncture guide needle 1 is taken out, the expansion tube 2 is provided with a channel penetrating through the tube body 21 and the tube tip 22, the expansion tube 2 enters along the guide wire 3 from the channel, the expansion tube 2 comprises a plurality of specifications, the tube body 21 of the expansion tube 2 of each specification has different tube diameters, the expansion tube 2 of each specification firstly enters along the guide wire 3 through the expansion tube 2 of a small tube diameter specification, then the expansion tube 2 is taken out to complete first expansion, the expansion tube 2 of a larger tube diameter specification is sequentially selected and then enters along the guide wire 3, and then the expansion tube is taken out to sequentially complete subsequent expansion such as second expansion, third expansion and the like.

The location of puncture guide needle 1 need cooperate the B ultrasonic to use in the operation, and B ultrasonic development effect is not obvious when being directed at the operation the utility model discloses an in the embodiment, refer to fig. 3, be close to needle tubing 11 the one end of needle point end 12 is equipped with a plurality of pinholes 111 on the surface, can strengthen pipe shaft cross section ultrasonic wave reflection effect like this for the B ultrasonic image is more clear. Because of ultrasonic probe position can not effective control perpendicularly with the puncture position during the operation, the B ultrasonic image is unclear, influence doctor's judgement, the accuracy of puncture, through set up a plurality of pinholes 111 on needle tubing 11, when the ultrasonic wave reaches the intersection, can be to diversified reflection, make ultrasonic probe always can receive the ultrasonic wave of reflection back, reinforcing image definition, the effectual doctor that has reduced can avoid puncturing again because the B ultrasonic image is unclear to ultrasonic probe's adjustment when serious, reduce the operation time, the risk when having reduced the operation. In another embodiment of the present invention, referring to fig. 4, a thread 112, which may be a bidirectional thread, is provided on the surface of the end of the needle cannula 11 near the needle tip 12, which can achieve the same effect as described above. In another embodiment of the present invention, referring to fig. 5, the surface of the needle tube 11 near the end of the needle tip 12 is provided with a ring 113, which can also achieve the same effect as the above. The texture of other forms can be enough as long as the ultrasonic reflection effect of the intersecting surface of the reinforced pipe body can be enhanced.

Further preferably, referring to fig. 6 to 7, a reinforcing member 24 is disposed on the tube 21 to reinforce the strength of the tube 21. The reinforcing member 24 is embedded in the inner or outer wall of the pipe body 21, and the reinforcing member 24 is preferably a stainless steel pipe. A thin-wall stainless steel pipe is embedded in the expansion pipe 2 or outside the expansion pipe to increase the hardness of the pipe body, when the resistance is large in the first expansion, the bending amplitude of the pipe body is reduced, the use hand feeling is guaranteed, the phenomenon that a patient is injured too deeply by too-large force application or the patient is injured too hard repeatedly and unnecessarily is caused by insufficient force application is avoided, and the operation safety is guaranteed. Further: the tube tip 22 of the expansion tube 2 is set to be in a fillet shape (not shown), the tip of the expansion tube 2 is replaced by a fillet to reduce the sharpness of the head end, and the channel is prevented from being repeatedly damaged under the condition of the existing channel during secondary expansion, so that the pain of a patient is reduced.

In the embodiment of the utility model, refer to fig. 8 again, through beat scale mark 31 on 3 surfaces of seal wire, can observe the situation of change of 3 positions of seal wire in real time in the operation process, when 3 atress of seal wire remove in the operation, can discover immediately and remedy, avoid 3 movements of seal wire to lead to actions such as expansion, stone extraction to fail, lose risks such as passageway.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims (9)

1. A novel minimally invasive dilation drainage kit comprises a puncture guide needle, a dilation tube and a guide wire, and is characterized in that the puncture guide needle comprises a needle tube, a needle joint and a needle tip which are respectively positioned at two ends of the needle tube, and the dilation tube comprises a tube body, a tube joint and a tube tip which are respectively positioned at two ends of the tube body; the needle tube is of a stainless steel hollow structure, an imaging structure is arranged in the tip end of the needle, and the imaging structure is inserted into the needle tube; the seal wire can penetrate the follow in the syringe needle, the expansion pipe be equipped with run through the body with the passageway at pipe point end, for the seal wire gets into, the expansion pipe includes multiple specification, every specification the expansion pipe the pipe diameter of body is different.

2. The novel minimally invasive dilation drainage kit according to claim 1, wherein: the surface of one end of the needle tube close to the needle tip is provided with a plurality of pinholes or textures.

3. The novel minimally invasive dilation drainage kit according to claim 1, wherein: and the surface of one end of the needle tube close to the needle tip is provided with threads or annular grains.

4. The novel minimally invasive dilation drainage kit according to claim 1, wherein: the pipe body is provided with a reinforcing piece to reinforce the strength of the pipe body.

5. The novel minimally invasive dilation drainage kit according to claim 4, wherein: the reinforcing piece is embedded on the inner wall or the outer wall of the pipe body, and/or the reinforcing piece is a stainless steel pipe.

6. The novel minimally invasive dilation drainage kit according to any one of claims 1 to 5, wherein: the tip of the tube is in a shape of a fillet.

7. The novel minimally invasive dilation drainage kit according to claim 1, wherein: and scale marks are arranged on the surface of the guide wire.

8. The novel minimally invasive dilation drainage kit according to claim 1, wherein: the needle tube is internally provided with a hollow needle core, and the imaging structure is inserted into the needle core.

9. The novel minimally invasive dilation drainage kit according to claim 1 or 8, wherein: the imaging structure is a camera assembly or an optical fiber assembly.

Images