CN221105971U - Anti-blocking puncture drainage needle for pleuroperitoneal cavity effusion under ultrasonic guidance - Google Patents

Abstract

The utility model discloses an anti-blocking puncture drainage needle for pleuroperitoneal cavity effusion under ultrasonic guidance, which belongs to the technical field of medical appliances and comprises the following components: the inner needle core is sleeved with a middle layer sleeve in a sliding manner, an outer layer sleeve is sleeved outside the middle layer sleeve, and the inner needle core, the middle layer sleeve and the outer layer sleeve are made of materials which can be identified by ultrasound; a top ring is fixedly connected to one end of the middle layer sleeve, and a plurality of liquid suction holes are formed in one side, close to the top ring, of the middle layer sleeve; one end of the outer sleeve is fixedly connected with the top ring, one section of the outer sleeve, which is close to the top ring, consists of a plurality of strip-shaped frameworks which are circumferentially arranged, and the strip-shaped frameworks are made of flexible materials; the tail end of the middle layer sleeve can be communicated with a drainage tube, and the tail end of the drainage tube is communicated with a negative pressure collecting component. The strip-shaped framework arranged at the end part of the outer sleeve can be outwards bent to form a lantern shape, the lantern-shaped structure can effectively expand the collection of the abdominal cavity effusion, and meanwhile, the blockage of other viscera and intestinal tracts in the abdominal cavity to the liquid suction hole can be separated; and the utility model is more beneficial to ultrasonic guidance.

Description

An ultrasound-guided puncture and drainage needle for preventing pleural and peritoneal effusion from blocking

Technical Field

The utility model belongs to the technical field of medical devices, and particularly relates to an ultrasound-guided thoracoabdominal effusion anti-blocking puncture and drainage needle.

Background technique

Pleural effusion, peritoneal effusion and cysts of various organs of the human body are common clinical diseases. The puncture and extraction of pleural and peritoneal effusion is a routine clinical surgical operation and the most commonly used method for diagnosis and treatment. However, when the conventional drainage needle is inserted into the abdominal cavity to absorb the effusion, due to the negative pressure suction at the needle hole, it is easy for the abdominal organs (such as the small intestine) to cover and block the needle hole, which often leads to the inability to continue the drainage operation, making it difficult to extract the peritoneal effusion. In addition, ultrasound-guided puncture and fluid extraction are developing rapidly. Ultrasound-guided puncture using an ultrasonic puncture guide can greatly improve the accuracy of puncture, improve the success rate of puncture surgery, and relieve patient pain. If the ultrasound-guided puncture without a puncture guide is not used, the operation is still very difficult and the puncture accuracy is low. However, due to the thin diameter of the conventional puncture needle, the ultrasound equipment may not be able to clearly identify and locate the position of the needle tip. This may make it difficult for doctors to accurately align the target position during the operation, increasing the risk of errors and damage to surrounding tissues. In addition, thinner puncture and drainage needles have lower rigidity, which may cause twisting, bending or slipping during the operation, thereby increasing the difficulty and risk of the operation.

Therefore, an ultrasound-guided puncture and drainage needle for preventing pleural and peritoneal effusion blockage was proposed.

Utility Model Content

In order to solve the above technical problems, the utility model proposes an ultrasound-guided thoracoabdominal effusion anti-blocking puncture and drainage needle.

To achieve the above-mentioned purpose, the utility model provides an ultrasound-guided thoracoabdominal effusion anti-blockage puncture and drainage needle, comprising: an inner needle core, a middle-layer sleeve is provided on the outer sliding sleeve of the inner needle core, and an outer-layer sleeve is provided on the outer sleeve of the middle-layer sleeve; the inner needle core, the middle-layer sleeve and the outer-layer sleeve are made of materials that can be identified by ultrasound; one end of the middle-layer sleeve is fixedly connected to a top ring, and a side of the middle-layer sleeve close to the top ring is provided with a plurality of suction holes; one end of the outer-layer sleeve is fixedly connected to the top ring, and a section of the outer-layer sleeve close to the top ring is composed of a plurality of circumferentially arranged strip frames, and the plurality of strip frames are made of flexible material; the tail end of the middle-layer sleeve can be connected to a drainage tube, and the tail end of the drainage tube is connected to a negative pressure collection component.

Preferably, the inner needle core includes a needle tip, a needle body and a needle handle, the needle body is longer than the middle sleeve and the outer sleeve, the needle tip is fixed to the top of the needle body, passes through the middle sleeve and the outer sleeve and is located outside the middle sleeve and the outer sleeve, and the tail end of the needle body is fixed to the needle handle.

Preferably, a push-pull ring is fixedly connected to the outer side of one end of the outer sleeve away from the strip-shaped frame, and a rubber pad is fixedly connected to the inner side of the push-pull ring.

Preferably, the inner needle core, the middle sleeve and the outer sleeve are made of metal.

Preferably, a sealing ring is provided between the middle sleeve and the outer sleeve, and the sealing ring is fixed to the inner wall of the outer sleeve near the tail end of the strip-shaped skeleton and is slidably connected to the outer wall of the middle sleeve.

Preferably, a flow valve is fixedly installed on the drainage tube.

Compared with the prior art, the utility model has the following advantages and technical effects:

When in use, the inner needle core breaks the skin first, and enters the thoracic and abdominal cavities together with the middle sleeve and the outer sleeve. The inner needle core is solid and has high hardness, which is convenient for puncture and easy to control the advance and retreat and direction of the puncture needle. The inner needle core, the middle sleeve and the outer sleeve are made of materials that can be identified by ultrasound, so that the drainage needle can accurately locate the target position and path under ultrasound guidance for precise puncture and drainage. Puncture under ultrasound guidance can greatly improve the accuracy of puncture, improve the success rate of puncture surgery, and reduce the pain of patients. The design of the inner needle core being sheathed with the middle sleeve and the middle sleeve being sheathed with the outer sleeve increases the diameter of the puncture and drainage needle, so that the puncture and drainage needle will not be difficult to observe on the ultrasound equipment due to being too thin, making ultrasound identification easier; when reaching the target position After placement, the inner needle core is pulled out of the middle sleeve, and the internal pipeline of the middle sleeve can be vacated for subsequent circulation of accumulated fluid, and then the tail end of the middle sleeve is connected to the drainage tube, and the drainage tube is connected to the negative pressure collection component, which can be a syringe or any other negative pressure collection component in the prior art such as a drain; then the outer end of the outer sleeve is pushed inward, so that the centers of several strip skeletons are bent outward to form a lantern shape, and the strip skeleton can be made of thin metal strips and other materials; the corresponding negative pressure collection component is activated, and the negative pressure collection component can provide corresponding negative pressure, so that the accumulated fluid flows into the suction hole from the gap after the strip skeleton is bent, and then enters the middle sleeve through the suction hole, and finally flows out from the tail end of the middle pipeline through the drainage tube and is collected by the negative pressure collection component. The design of the inner needle core increases the strength of the puncture and drainage needle when it punctures into the body, which is more conducive to the doctor's precise operation of the puncture needle and accurate positioning of the target position; more importantly, after the puncture and drainage needle enters the target position, it pushes the outer sleeve, and the strip skeleton provided at the end of the outer sleeve can bend outward into a lantern shape, and the suction hole is provided inside the lantern-shaped structure formed by the bending of the strip skeleton. The lantern-shaped structure can effectively expand the collection of abdominal fluid, and at the same time can isolate the obstruction of the suction hole by other organs and intestinal tract in the abdominal cavity. In addition, the suction hole is provided on the side wall of the middle sleeve, which is conducive to the effective collection of fluid at different depths.

BRIEF DESCRIPTION OF THE DRAWINGS

The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

FIG1 is a schematic diagram of the structure of a puncture state of a thoracoabdominal effusion anti-blocking puncture and drainage needle under ultrasound guidance of the present invention;

FIG2 is an exploded view of an ultrasound-guided puncture and drainage needle for preventing pleural and abdominal effusion blockage according to the present invention;

FIG3 is a schematic diagram of the structure of a strip-shaped skeleton of a thoracoabdominal effusion anti-blocking puncture and drainage needle under ultrasound guidance of the present invention in a propped-up state;

FIG4 is a schematic diagram of the structure of the aspiration state of the thoracoabdominal effusion anti-blocking puncture and drainage needle under ultrasound guidance of the present invention;

FIG5 is a cross-sectional view of FIG1;

Fig. 6 is an enlarged view of A in Fig. 5;

FIG7 is an enlarged view of B in FIG5 ;

In the figure: 1. inner needle core; 2. middle sleeve; 3. outer sleeve; 4. top ring; 5. suction hole; 6. strip skeleton; 101. needle tip; 102. needle body; 103. needle handle; 7. push-pull ring; 8. rubber pad; 9. drainage tube; 10. negative pressure collection component; 11. sealing ring; 12. flow valve.

Detailed ways

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

Example 1

1-7, the present embodiment provides an ultrasound-guided thoracoabdominal effusion anti-blockage puncture and drainage needle, comprising: an inner needle core 1, a middle sleeve 2 is provided on the outer sliding sleeve of the inner needle core 1, and an outer sleeve 3 is provided on the outer sleeve of the middle sleeve 2; the inner needle core 1, the middle sleeve 2 and the outer sleeve 3 are made of materials that can be identified by ultrasound; a top ring 4 is fixedly connected to one end of the middle sleeve 2, and a plurality of suction holes 5 are provided on the side of the middle sleeve 2 close to the top ring 4; one end of the outer sleeve 3 is fixedly connected to the top ring 4, and a section of the outer sleeve 3 close to the top ring 4 is composed of a plurality of circumferentially arranged strip skeletons 6, and the plurality of strip skeletons 6 are made of flexible material; the tail end of the middle sleeve 2 can be connected to a drainage tube 9, and the tail end of the drainage tube 9 is connected to a negative pressure collection component 10.

When in use, the inner needle core 1 breaks the skin first, and enters the thoracic and abdominal cavities together with the middle sleeve 2 and the outer sleeve 3. The inner needle core 1 is solid and has a high hardness, which is convenient for puncture and for controlling the advance and retreat and direction of the puncture needle. The inner needle core 1, the middle sleeve 2 and the outer sleeve 3 are made of materials that can be identified by ultrasound, so that the drainage needle can accurately locate the target position and path under ultrasound guidance for precise puncture and drainage. Puncture under ultrasound guidance can greatly improve the accuracy of puncture, improve the success rate of puncture surgery, and reduce the pain of patients. The design of the inner needle core 1 being covered with the middle sleeve 2 and the outer sleeve 3 being covered with the middle sleeve 2 increases the diameter of the puncture and drainage needle, so that the puncture and drainage needle will not be difficult to observe on the ultrasound equipment due to being too thin, making ultrasound identification easier. After reaching the target position, the inner needle core 1 is inserted into the By pulling out the middle sleeve 2, the internal pipe of the middle sleeve 2 can be emptied for subsequent circulation of accumulated fluid, and then the tail end of the middle sleeve 2 is connected to the drainage tube 9, and the drainage tube 9 is connected to the negative pressure collection component 10. The negative pressure collection component 10 can be a syringe, or any other negative pressure collection component 10 in the prior art such as a drain; then the outer end of the outer sleeve 3 is pushed inward, so that the centers of several strip skeletons 6 are bent outward to form a lantern shape, and the strip skeleton 6 can be made of thin metal strips or other materials; the corresponding negative pressure collection component 10 is activated, and the negative pressure collection component 10 can provide corresponding negative pressure, so that the accumulated fluid flows into the suction hole 5 from the gap after the strip skeleton 6 is bent, and then enters the middle sleeve 2 through the suction hole 5, and finally flows out from the tail end of the middle pipeline through the drainage tube 9 and is collected by the negative pressure collection component 10. The design of the inner needle core 1 increases the strength of the puncture and drainage needle when it punctures into the body, which is more conducive to the doctor's precise operation of the puncture needle and accurate positioning of the target position; more importantly, after the puncture and drainage needle enters the target position, it pushes the outer sleeve 3, and the strip skeleton 6 set at the end of the outer sleeve 3 can be bent outward into a lantern shape, and the suction hole 5 is set inside the lantern-shaped structure formed by the bending of the strip skeleton 6. The lantern-shaped structure can effectively expand the collection of abdominal effusion, and at the same time can isolate the obstruction of the suction hole 5 by other organs and intestinal tract in the abdominal cavity. In addition, the suction hole 5 is set on the side wall of the middle sleeve 2, which is conducive to the effective collection of effusion at different depths.

A further optimized solution is that the inner needle core 1 includes a needle tip 101, a needle body 102 and a needle handle 103. The needle body 102 is longer than the middle layer sleeve 2 and the outer layer sleeve 3. The needle tip 101 is fixed to the top of the needle body 102, and passes through the middle layer sleeve 2 and the outer layer sleeve 3 and is located outside the middle layer sleeve 2 and the outer layer sleeve 3. The tail end of the needle body 102 is fixed to the needle handle 103.

The needle body 102 is longer than the middle layer casing 2 and the outer layer casing 3 so that the needle tip 101 and the needle handle 103 are both located outside the middle layer casing 2 and the outer layer casing 3. The needle tip 101 is located outside the middle layer casing 2 and the outer layer casing 3 and can first contact the skin and internal tissues. The sharp needle tip 101 can more easily penetrate the skin and other tissues, reduce the risk of pain and bleeding, and more safely guide the middle layer casing 2 and the outer layer casing 3 into the body to reduce the possibility of injury. The needle handle 103 is used to pull out the inner needle core 1 by hand, which is convenient for hand holding and is conducive to applying force.

According to a further optimized solution, a push-pull ring 7 is fixedly connected to the outer side of one end of the outer sleeve 3 away from the strip-shaped frame 6 , and a rubber pad 8 is fixedly connected to the inner side of the push-pull ring 7 .

The push-pull ring 7 facilitates the pushing and pulling of the outer sleeve 3, and the rubber pad 8 is conducive to increasing the friction between the push-pull ring 7 and the middle sleeve 2, so as to increase the force required to push the push-pull ring 7 and avoid any sliding of the push-pull ring 7 caused by accidental touch.

According to a further optimized solution, the inner needle core 1, the middle sleeve 2 and the outer sleeve 3 are made of metal.

Metal materials can be identified by ultrasonic signals and can be accurately punctured and drained under ultrasound guidance. Puncture under ultrasound guidance can greatly improve the accuracy of puncture, increase the success rate of puncture surgery, and reduce the pain of patients. Metal materials are also helpful in increasing the rigidity during puncture, avoiding the difficulty of the drainage needle to penetrate the skin and other tissues due to being too soft. In addition, metal materials can be sterilized at high temperatures, which is convenient for reuse and can reduce the medical expenses of patients.

As a further optimization scheme, a sealing ring 11 is provided between the middle casing 2 and the outer casing 3 , and the sealing ring 11 is fixedly connected to the inner wall of the outer casing 3 near the tail end of the strip-shaped skeleton 6 , and is slidably connected to the outer wall of the middle casing 2 .

In order to prevent the accumulated liquid from flowing out from the gap between the middle casing 2 and the outer casing 3 , a sealing ring 11 is arranged between the middle casing 2 and the outer casing 3 .

To further optimize the solution, a flow valve 12 is fixedly installed on the drainage tube 9.

The flow valve 12 can control the flow rate of the accumulated liquid.

Example 2

The ultrasound-guided thoracoabdominal effusion anti-blockage puncture and drainage needle of this embodiment is different from that of Embodiment 1 only in that the middle sleeve 2 and the outer sleeve 3 are made of medical plastic material.

Medical plastic materials can be identified by ultrasonic signals just like metal materials, and plastic materials have a certain degree of flexibility. If the middle sleeve 2 and the outer sleeve 3 are made of medical plastic materials, after removing the inner needle core 1, it is possible to explore the more complex space in the abdominal cavity without damaging the organs, and it is easier to reach the deep effusion position. Medical plastics can be made of materials such as PA and TPU.

In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims (6)

1. An anti-blocking puncture drainage needle for pleuroperitoneal cavity effusion under ultrasonic guidance, which is characterized by comprising: the inner needle core (1), the inner needle core (1) is sleeved with a middle layer sleeve (2) in a sliding manner, and an outer layer sleeve (3) is sleeved outside the middle layer sleeve (2); the inner needle core (1), the middle layer sleeve (2) and the outer layer sleeve (3) are made of materials which can be identified by ultrasound; a top ring (4) is fixedly connected to one end of the middle layer sleeve (2), and a plurality of liquid suction holes (5) are formed in one side, close to the top ring (4), of the middle layer sleeve (2); one end of the outer sleeve (3) is fixedly connected with the top ring (4), one section of the outer sleeve (3) close to the top ring (4) consists of a plurality of strip-shaped frameworks (6) which are circumferentially arranged, and a plurality of strip-shaped frameworks (6) are made of flexible materials; the tail end of the middle layer sleeve (2) can be communicated with a drainage tube (9), and the tail end of the drainage tube (9) is communicated with a negative pressure collecting component (10).

2. The ultrasound-guided pleuroperitoneal cavity effusion anti-blocking puncture drainage needle according to claim 1, wherein: the inner needle core (1) comprises a needle point (101), a needle body (102) and a needle handle (103), the length of the needle body (102) is longer than that of the middle-layer sleeve (2) and the outer-layer sleeve (3), the needle point (101) is fixedly connected to the top end of the needle body (102) and penetrates through the middle-layer sleeve (2) and the outer-layer sleeve (3) to be located outside the middle-layer sleeve (2) and the outer-layer sleeve (3), and the tail end of the needle body (102) is fixedly connected with the needle handle (103).

3. The ultrasound-guided pleuroperitoneal cavity effusion anti-blocking puncture drainage needle according to claim 1, wherein: the outer sleeve (3) is far away from the outer side of one end of the strip-shaped framework (6) and is fixedly connected with a push-pull ring (7), and the inner side of the push-pull ring (7) is fixedly connected with a rubber pad (8).

4. The ultrasound-guided pleuroperitoneal cavity effusion anti-blocking puncture drainage needle according to claim 1, wherein: the inner needle core (1), the middle layer sleeve (2) and the outer layer sleeve (3) are made of metal materials.

5. The ultrasound-guided pleuroperitoneal cavity effusion anti-blocking puncture drainage needle according to claim 1, wherein: a sealing ring (11) is arranged between the middle layer sleeve (2) and the outer layer sleeve (3), and the sealing ring (11) is fixedly connected to the inner wall of the outer layer sleeve (3) close to the tail end of the strip-shaped framework (6) and is in sliding connection with the outer wall of the middle layer sleeve (2).

6. The ultrasound-guided pleuroperitoneal cavity effusion anti-blocking puncture drainage needle according to claim 1, wherein: a flow valve (12) is fixedly arranged on the drainage tube (9).