CN211674471U - Ultrasonic intervention puncture device capable of preventing miss - Google Patents

Abstract

The patent of the utility model discloses a prevent that supersound of off-target from interveneeing piercing depth, concretely relates to medical instrument's technical field. The utility model provides a prevent ultrasonic intervention piercing depth of off-target, includes inside hollow columniform casing, the one end of casing is equipped with the puncture portion, it has semi-cylindrical opening to open on the casing, be equipped with the curved separation blade that is located the opening part on the inner wall of casing, be equipped with the seal wire in the casing, the one end of seal wire is connected with pushes away commentaries on classics mechanism, it is used for controlling the seal wire to remove and rotate to push away commentaries on classics mechanism. Adopt the utility model discloses technical scheme has overcome in the unable target object that gets into of current piercing depth, and has harmd the problem of tissue on every side easily, can be used to the fixed operation of puncture of target object in the human body.

Description

Ultrasonic intervention puncture device capable of preventing miss

Technical Field

The utility model relates to the technical field of medical equipment, in particular to prevent ultrasonic intervention piercing depth of off-target.

Background

The ultrasonic guided puncture is a technology developed on the basis of ultrasonic imaging to meet the requirements of clinical diagnosis and treatment, and through the puncture needle, pathological change tissues in a patient body can be conveniently extracted or medicines can be injected to a certain target in the patient body. In the existing ultrasonic intervention operation, if the capsule of the puncture target is tough, or the surrounding support structure is loose and soft, the puncture needle can not enter the target, and the surrounding tissues are damaged, so that the patient is damaged.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a prevent that supersound of off-target from interveneing piercing depth to solve in the current piercing depth can't get into the target object, and damage the problem of tissue on every side easily.

In order to achieve the above purpose, the technical scheme of the utility model is as follows: the utility model provides a prevent ultrasonic intervention piercing depth of off-target, includes inside hollow columniform casing, the one end of casing is equipped with the puncture portion, it has semi-cylindrical opening to open on the casing, be equipped with the curved separation blade that is located the opening part on the inner wall of casing, be equipped with the seal wire in the casing, the one end of seal wire is connected with pushes away commentaries on classics mechanism, it is used for controlling the seal wire to remove and rotate to push away commentaries on classics mechanism.

The principle and the effect of the technical scheme are as follows: when the target object is punctured and fixed, the target object is firstly positioned by means of the ultrasonic probe, then the target object is punctured into the body of a patient by means of the puncturing part, the shell is moved to the position close to the target object, the pushing and rotating mechanism is started to push the guide wire to move, when the guide wire moves to the position of the separation blade, deflection occurs due to blocking of the separation blade, the guide wire rotates by means of the pushing and rotating mechanism after moving to the outside of the shell, the front end of the guide wire faces the target object, and finally the guide wire punctures into the target object, so that the target object is punctured and fixed. If the target object is close to important organs or tissues such as blood vessels, one end of the guide wire moving to the outside of the shell can be closely attached to one side of the target object, so that the target object is supported and fixed by the aid of the far end of the guide wire and then is punctured after being moved for a certain distance, the situation that tissues around the target object are damaged is effectively avoided, and the puncturing safety is improved.

Further, push away commentaries on classics mechanism including connecting at casing one end and inside hollow sleeve, wear to be equipped with the push rod in the sleeve, the one end and the seal wire of push rod are connected, the other end symmetry of push rod is equipped with two fixed blocks, the outer cladding of push rod has the spring, the one end and the telescopic inner wall fixed connection of spring.

Furthermore, ratchet teeth are arranged on the inner wall of the sleeve in the circumferential direction at equal intervals, a pawl matched with the ratchet teeth is detachably connected to the push rod, and an inlet and an outlet for the pawl to pass through are formed in one side of the sleeve.

Through the arrangement, the guide wire can be pushed to slide by virtue of the push rod, and the spring outside the push rod can realize the automatic reset of the push rod; the two fixing blocks symmetrically arranged at one end of the push rod can enable a doctor to complete the rotation of the guide wire by using one finger in the puncture process, and the operation is simple; and after the push rod rotates, the condition that the fingers of a doctor need to keep a fixed posture after the doctor rotates the push rod to a required angle is avoided by means of the matching of the ratchet wheel and the ratchet, and the labor intensity of the doctor is reduced.

Furthermore, the number of the guide wires is three, the three guide wires are equidistantly distributed on the pushing and rotating mechanism, and the three guide wires are in an umbrella shape after extending out. By means of the umbrella shape formed by the unfolded guide wires, the target can be dragged and fixed under the condition that the target is not broken, so that the target can be moved conveniently.

Furthermore, a guide wire sliding guide track is further arranged on the baffle. The guide rail can control the sliding direction of the guide wire, so that the guide wire can be moved and positioned more accurately.

Further, the guide wire is made of Ti-Ni memory alloy, and the front end of the guide wire is bent. The guide wires can be bent naturally after being stretched out, and the three guide wires can be encircled to form an umbrella shape with basically the same shape in a long time, so that the stability of the scheme is enhanced.

Drawings

Fig. 1 is a front view of an ultrasonic interventional puncture device for preventing miss of the present invention;

FIG. 2 is a right side view of the ultrasonic interventional puncture device for preventing miss of the present invention;

fig. 3 is a partial enlarged view at a in fig. 1.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments:

reference numerals in the drawings of the specification include: the puncture outfit comprises a shell 1, a puncture part 2, a slide rail 3, a baffle plate 4, a guide rail 5, a guide wire 6, a sleeve 7, a push rod 8, a fixed block 9, a spring 10, a ratchet 11 and a pawl 12.

The embodiments are substantially as shown in figures 1 to 3 of the accompanying drawings: the utility model provides a prevent ultrasonic intervention piercing depth of off-target, including inside hollow columniform casing 1, the left end of casing 1 is equipped with conical puncture portion 2, it has semi-cylindrical opening to open on the casing 1, the opening part is close to puncture portion 2, semi-cylindrical slide rail 3 still adheres to outside the casing 1 of opening part, sliding connection has curved separation blade 4 in the slide rail 3, it has guide rail 5 to adhere to on the separation blade 4, be equipped with three seal wires 6 with guide rail 5 matched with in the casing 1, seal wire 6 is made by Ti-Ni memory alloy, and the front end of seal wire is the crook, make three seal wires 6 can be permanent when stretching out casing 1 keep being the umbelliform, the stability of this scheme has been strengthened, and be convenient for three seal wires 6 with target centre gripping support in the umbelliform.

The one end of seal wire 6 is connected with pushes away commentaries on classics mechanism, push away commentaries on classics mechanism including connecting at 1 right-hand member of casing and inside hollow sleeve 7, the adhesion of sleeve 7 is on casing 1, it has columniform push rod 8 to run through in the sleeve 7, the left side sliding connection of push rod 8 is on the inner wall of casing 1, the left end of push rod 8 is in the same place with the adhesion of three seal wires 6, the right-hand member symmetry of push rod 8 is stained with two fixed blocks 9, interval between two fixed blocks 9 can hold doctor's single finger, 8 outer cladding of push rod has spring 10, the left end of spring 10 and the inner wall fixed connection of sleeve 7.

The inner wall of the right side of the sleeve 7 is circumferentially and equidistantly provided with a plurality of ratchets 11, the width of each ratchet 11 is one third of the length of the inner wall of the sleeve 7, the ratchets 11 and the sleeve 7 are integrally formed, so that the strength of the ratchets 11 is improved, the push rod 8 is adhered with a pawl 12 matched with the ratchets 11, the length of the pawl 12 is one half of the length of the inner wall of the sleeve 7, the right side of the sleeve 7 is provided with an inlet and an outlet for the pawl 12 to penetrate through, and the size of the inlet and the.

The working principle of the embodiment is as follows: when the device is not used, the right end of the pawl 12 is flush with the right end of the ratchet 11, the pawl 12 is clamped on the ratchet 11, the three guide wires 6 are positioned in the guide rail 5 at the moment, and the spring 10 is not elastically deformed. When the puncture operation is carried out, firstly, the ultrasonic probe is utilized to detect and position a target object, and the puncture part 2 on the shell 1 is utilized to puncture the positioning point, then the opening on the shell 1 is moved to the vicinity of the target, at the moment, a doctor holds the sleeve 7 with one hand and places the thumb between the two fixed blocks 9, and pushes the push rod 8 to move forwards by the thumb, at the moment, the spring 10 is in a compressed state, the push rod 8 drives the guide wire 6 to slide along the guide track 5 after moving, when the guide wire 6 moves to the arc-shaped area of the baffle 4, deflection occurs, after the guide wire 6 slides out of the shell 1, the thumb can be used for applying certain separation to the two fixed blocks 9 to realize the rotation of the push rod 8, thereby, the guide wire 6 and the baffle 4 are driven to rotate together by the push rod 8, so that the guide wire 6 penetrates into the target object from one side of the target object, and the target object is penetrated and fixed; after the push rod 8 rotates for a certain angle, the pawl 12 is matched with the ratchet 11, so that the situation that the push rod 8 rotates and resets under the restoring force of the spring 10 is avoided, a doctor is not required to provide constant steering force to maintain the push rod 8 to be always positioned in the same direction, the operation difficulty of the doctor is reduced, and the stability and the safety of puncture operation are ensured.

When a target object needing to be punctured and fixed is close to important organs or tissues such as blood vessels and the like, after the target object is punctured and enters a patient body by virtue of a puncturing part 2 on a shell 1, an opening of the shell 1 is moved to be close to the target object, the opening is positioned at one end, far away from the blood vessels, of the target object, a push rod 8 is pushed by a helper finger to drive a guide wire 6 to slide out of the shell 1, a spring 10 is in a compressed state at the moment, a certain component force is applied to two fixing blocks 9 by the finger after the guide wire 6 slides out of the shell 1 to drive the push rod 8 to rotate, the guide wire 6 and a baffle plate 4 are driven to rotate after the push rod 8 rotates, the three guide wires 6 stop rotating when rotating to the middle part of one end of the target object, at the moment, the shell 1 is moved, the guide wire 6 supports the target object, the three guide wires 6 are in the shape of claws after being unfolded, the target object can be stably supported, the condition that surrounding tissues are damaged in the puncturing process is effectively avoided, and the puncturing safety is improved.

When the puncture is fixed, the fingers are slowly released, and the push rod 8 automatically resets under the elastic action of the spring 10; if the push rod 8 is rotated during the puncturing process, the push rod 8 needs to be continuously pressed when the resetting operation is carried out so that the pawl 12 is separated from the ratchet 11, the finger is slowly and reversely rotated after the pawl 12 is separated from the ratchet 11 so that the finger is in the initial direction, and the push rod 8 is reset under the elastic force of the spring 10.

The above are merely examples of the present invention, and common general knowledge of known specific structures and/or characteristics of the embodiments is not described herein in an excessive amount. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims (6)

1. The utility model provides a prevent ultrasonic intervention piercing depth of off-target which characterized in that: the novel medical needle puncture device is characterized by comprising a hollow cylindrical shell, wherein a puncture part is arranged at one end of the shell, a semi-cylindrical opening is formed in the shell, an arc-shaped blocking piece located at the opening is arranged on the inner wall of the shell, a guide wire is arranged in the shell, one end of the guide wire is connected with a pushing and rotating mechanism, and the pushing and rotating mechanism is used for controlling the guide wire to move and rotate.

2. The ultrasonic interventional puncture device for preventing miss of claim 1, wherein: the push-turn mechanism comprises a sleeve connected to one end of the shell and hollow inside, a push rod penetrates through the sleeve, one end of the push rod is connected with the guide wire, two fixing blocks are symmetrically arranged at the other end of the push rod, a spring is coated outside the push rod, and one end of the spring is fixedly connected with the inner wall of the sleeve.

3. The ultrasonic interventional puncture device for preventing miss according to claim 2, characterized in that: ratchets are arranged on the inner wall of the sleeve in the circumferential direction at equal intervals, pawls matched with the ratchets are detachably connected to the push rod, and an inlet and an outlet for the pawls to pass through are further formed in one side of the sleeve.

4. The ultrasonic interventional puncture device for preventing miss of claim 1, wherein: the number of the guide wires is three, the three guide wires are equidistantly distributed on the pushing and rotating mechanism, and the three guide wires are in an umbrella shape after extending out.

5. The ultrasonic interventional puncture device for preventing miss according to claim 4, characterized in that: and the baffle is also provided with a guide wire sliding guide track.

6. The ultrasonic interventional puncture device for preventing miss according to any one of claims 1-5, characterized in that: the guide wire is made of Ti-Ni memory alloy, and the front end of the guide wire is bent.

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