CN220876870U - Pollution-avoiding puncture device - Google Patents

Abstract

The utility model discloses a puncture device for avoiding pollution, which relates to the field of examination and puncture, wherein a suction part comprises a needle cylinder and a plunger, two sides of the upper end of the needle cylinder are fixedly connected with side rings, the upper end of the plunger is fixedly connected with an upper ring, a limit component for preventing the plunger from pushing and injecting in the needle cylinder is arranged between the plunger and the needle cylinder, the connection part comprises a connecting pipe, the connecting pipe is detachably connected with the needle cylinder, the puncture part comprises a steel needle, the length of the steel needle is longer than that of a stamping card, and the steel needle is fixedly connected with the connecting pipe; the steel needle with the length greater than the stab card is matched with the stab card, so that the effect of avoiding abdominal wall pollution is achieved, medical staff can control the plunger to suck in the needle cylinder by one hand through the side ring and the upper ring, the position between the plunger and the needle cylinder is limited by the limiting component, the pressure of the needle cylinder after the plunger is pulled is kept stable, the problem that the tip of the needle generates a low-pressure area during sucking, the plunger rebounds, sucked objects flow back and abdominal cavity pollution is avoided.

Description

Pollution-avoiding puncture device

Technical Field

The utility model relates to the field of inspection puncture, in particular to a puncture device capable of avoiding pollution.

Background

Along with the development of laparoscopic surgery, the existing surgical incision is gradually minimally invasive, the requirements of patients on hiding and beautiful appearance of the postoperative incision are met, the laparoscopic surgery comprises the following steps of opening a small opening under the umbilicus, placing a poking card (Trocar, namely a Trocar), injecting carbon dioxide, expanding the whole abdominal cavity to form an operation space, transmitting imaging data in the abdominal cavity to a display screen through imaging transmission, performing intraperitoneal operation through the display screen, placing endoscopic instruments into the abdominal cavity through poking cards at other positions, and performing surgery;

under the conditions that suppurative cholecystitis and peritoneal fluid seepage occur in patients, a pus sample is required to be obtained for bacterial culture, the obtained sample cannot be polluted, the bacterial culture result is prevented from being influenced, and the effectiveness of the sample for inspection is ensured.

To sum up, the current process of obtaining a pus sample has the following technical problems: the existing puncture needle or pneumoperitoneum needle is used for puncturing the target sample position from the skin of a patient, and the puncture needle or pneumoperitoneum needle is polluted by the abdominal wall in the process of puncturing the abdominal wall, so that the acquired sample is polluted, and the bacteria culture detection result is affected; when suppurative cholecystitis of a patient is treated by a laparoscope, a good operation channel is established by using a poking card in an operation and is far away from skin, but when a puncture needle or an intravenous infusion needle is used for passing through the poking card, the rear end of the existing needle such as the puncture needle is provided with a holding part which limits the length of the puncture needle to enter the poking card, and meanwhile, the length of the needle such as the puncture needle is smaller than the length of the poking card and is limited by the length and the structure of the needle, so that the puncture needle cannot puncture to a target sample position; in the process of sample acquisition, an injector is usually used as a suction tool, in the process of suction of the injector, a medical staff is required to hold a needle cylinder by one hand and pull a plunger by the other hand, meanwhile, the relative stability of a puncture needle and a target position is also maintained, the suction process is ensured, the needle point of the puncture needle is always positioned at the target position, the operator cannot operate at the same time, assistance of an assistant is required, communication confirmation is required for the suction condition, and the workload of the medical staff is increased; and after the sample is obtained, since the obtained sample has bacteria, a low pressure area is formed at the negative pressure suction position, or the sample flows along with gravity, so that the sample falls into the abdominal cavity from the suction part to pollute the abdominal cavity.

Disclosure of utility model

In view of the above problems in the prior art, the present utility model provides a puncture device that avoids contamination.

In order to achieve the technical purpose and the technical effect, the utility model is realized by the following technical scheme:

The utility model provides a avoid piercing depth of pollution, includes suction portion, connecting portion and piercing depth, suction portion includes cylinder and plunger, cylinder upper end both sides fixedly connected with side ring, plunger upper end fixedly connected with goes up the ring, be equipped with the spacing subassembly that prevents the plunger from pushing away the notes in the cylinder between plunger and the cylinder, connecting portion include the connecting pipe, the connecting pipe can be dismantled with the cylinder and be connected, piercing depth includes the steel needle, steel needle length is greater than the card length of stabbing, steel needle and connecting pipe fixed connection.

Further, spacing subassembly includes connecting rod, oblique slider and fixed column, the plunger is at one side fixedly connected with connecting rod of cylinder, the cylinder corresponds position fixedly connected with fixed column at the connecting rod, the fixed column is opened there is the spout, connecting rod sliding connection is in the fixed column spout, connecting rod downside horizontal direction sliding connection has oblique slider, the connecting rod downside is opened there is with oblique slider sliding fit's slotted hole, be connected with the spring between oblique slider and the connecting rod slotted hole filing, the fixed column is opened to oblique slider one side on the connecting rod has a plurality of draw-in grooves, oblique slider and draw-in groove cooperation.

Furthermore, the lower side of the needle cylinder is provided with a buckling cap, a connecting rope is fixedly connected between the buckling cap and the needle cylinder, and the buckling cap is detachably connected with a nipple of the needle cylinder.

Further, the connecting portion comprises a supporting ring and a control handle, the supporting ring is fixedly connected to the outer side of the connecting pipe, the connecting pipe is prevented from deforming and shrinking under negative pressure, the control handle is fixedly connected to the connecting pipe and the steel needle, and the steel needle puncture direction is controlled.

Further, the inside of the lower side of the connecting pipe is fixedly connected with a unidirectional film which limits the downward flow of liquid.

Further, the outer side of the steel needle is connected with a sleeve in a sliding manner, the upper side of the sleeve is fixedly connected with a control frame, the control frame is connected in a control handle on the connecting pipe in a sliding manner, the lower side of the control frame is fixedly connected with a limiting ball, a limiting groove matched with the limiting ball is formed in the control handle, and the control frame is fixedly connected with a control ball on the upper side of the control handle; the inside of sleeve pipe downside is fixedly connected with the protection film that restriction liquid upwards flows.

Furthermore, the protective film is made of a steel needle penetrable film.

Further, the protective film has a structure consistent with that of the unidirectional film.

The utility model has the beneficial effects that:

The utility model provides a avoid piercing depth of pollution, through the length be greater than the steel needle of stabbing the card with stab the card cooperation, reach the effect of avoiding abdominal wall pollution, make medical personnel's singlehanded suction in the cylinder through side ring and go up the ring, limit the position between plunger and the cylinder through spacing subassembly, make the pressure of cylinder keep stable after the plunger pulling, avoid sucking the needle point to produce low pressure region, lead to the plunger to kick-back, lead to the suction thing backward flow, pollute intraperitoneal problem.

Of course, it is not necessary for any one product to practice the utility model to achieve all of the advantages set forth above at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the whole structure of a puncture device for preventing contamination according to an embodiment of the present utility model;

FIG. 2 is a schematic view showing the structural connection of the needle cylinder, the connecting tube and the steel needle according to the embodiment of the present utility model;

fig. 3 is a schematic view showing a connection structure of the syringe according to the embodiment of the present utility model;

FIG. 4 is a schematic cross-sectional view of a connecting rod according to an embodiment of the present utility model;

FIG. 5 is a schematic cross-sectional view of a vehicle body fixing post according to an embodiment of the present utility model;

FIG. 6 is a schematic view of the structure of the buckle cap according to the embodiment of the present utility model;

FIG. 7 is a schematic view of a connecting pipe according to an embodiment of the present utility model;

FIG. 8 is a schematic cross-sectional view of a connecting pipe according to an embodiment of the present utility model;

FIG. 9 is a schematic view of a steel needle according to an embodiment of the present utility model;

FIG. 10 is a schematic view of a steel needle and cannula according to an embodiment of the present utility model;

FIG. 11 is a cross-section of a control handle and control frame according to an embodiment of the present utility model;

fig. 12 is a schematic view of a section of a sleeve and a steel needle according to an embodiment of the present utility model.

In the drawings, the list of components represented by the various numbers is as follows:

1-needle cylinder, 101-side ring, 102-plunger, 103-upper ring, 110-connecting rod, 111-inclined slide block, 112-spring, 115-fixed column, 116-chute, 117-clamping groove, 120-connecting rope, 121-buckling cap, 2-connecting pipe, 201-supporting ring, 202-control handle, 203-unidirectional film, 204-limit groove, 3-steel needle, 301-sleeve, 302-control frame, 303-limit ball, 304-control ball, 305-protective film.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

As shown in fig. 1-5

The utility model discloses a pollution-avoiding puncture device, which comprises a suction part, a connecting part and a puncture part, wherein the suction part comprises a needle cylinder (1) and a plunger (102), two sides of the upper end of the needle cylinder (1) are fixedly connected with side rings (101), the upper end of the plunger (102) is fixedly connected with an upper ring (103), a limit component for preventing the plunger (102) from pushing and injecting in the needle cylinder (1) is arranged between the plunger (102) and the needle cylinder (1), the connecting part comprises a connecting pipe (2), the connecting pipe (2) is detachably connected with the needle cylinder (1), the puncture part comprises a steel needle (3), the length of the steel needle (3) is longer than the length of a poking card, and the steel needle (3) is fixedly connected with the connecting pipe (2);

The limiting assembly comprises a connecting rod (110), an inclined sliding block (111) and a fixed column (115), wherein the connecting rod (110) is fixedly connected to one side of the plunger (102) on the needle cylinder (1), the fixed column (115) is fixedly connected to the needle cylinder (1) at a corresponding position of the connecting rod (110), a sliding groove (116) is formed in the fixed column (115), the connecting rod (110) is slidably connected in the sliding groove (116) of the fixed column (115), the inclined sliding block (111) is slidably connected to the lower side of the connecting rod (110) in the horizontal direction, a slotted hole which is slidably matched with the inclined sliding block (111) is formed in the lower side of the connecting rod (110), a spring (112) is connected between the inclined sliding block (111) and the slotted hole of the connecting rod (110), a plurality of clamping grooves (117) are formed in one side of the inclined sliding block (111) on the connecting rod (110), and the clamping grooves (117) are matched with each other;

Medical personnel use index finger and middle finger and side ring cooperation of one hand, thumb and last ring cooperation, and the suction action can be accomplished to the singlehanded, through limit assembly's oblique slider and draw-in groove cooperation, receives the trend that the negative pressure reset was kick-backed downwards after limiting the connecting rod to move up for the plunger that the connecting rod connects remains stable after accomplishing the extraction pus sample under the peritoneoscope in the cylinder, avoids producing the negative pressure after the suction and leads to pus to flow out and pollute the abdominal cavity at the extraction steel needle in-process.

Example 2

As shown in FIG. 6

A buckling cap (121) is arranged on the lower side of the needle cylinder (1), a connecting rope (120) is fixedly connected between the buckling cap (121) and the needle cylinder (1), and the buckling cap (121) is detachably connected with a nipple of the needle cylinder (1);

After the pus is pumped in the syringe, under the condition that the slender steel needle is taken down for convenient transportation, the buckling cap seals the nipple of the syringe, the pus is prevented from being thrown out of the polluted environment and causing the loss of a pus sample, the outside air is prevented from polluting the pus sample, the plunger cannot move to outwards discharge the pus and the buckling cap is flushed under the action of the limiting component, and meanwhile the buckling cap enables the syringe to be sealed, so that the plunger is limited to perform suction action again.

Examples

As shown in fig. 7-12

The connecting part comprises a supporting ring (201) and a control handle (202), the supporting ring (201) is fixedly connected to the outer side of the connecting pipe (2), the connecting pipe (2) is prevented from deforming and shrinking under negative pressure, the control handle (202) is fixedly connected to the connecting position of the connecting pipe (2) and the steel needle (3), and the piercing direction of the steel needle (3) is controlled;

A unidirectional film (203) for limiting the downward flow of the liquid is fixedly connected inside the lower side of the connecting pipe (2);

The steel needle (3) is connected with a sleeve (301) in a sliding manner, a control frame (302) is fixedly connected to the upper side of the sleeve (301), the control frame (302) is connected in a control handle (202) on a connecting pipe (2) in a sliding manner, a limiting ball (303) is fixedly connected to the lower side of the control frame (302), a limiting groove (204) matched with the limiting ball (303) is formed in the control handle (202), and a control ball (304) is fixedly connected to the upper side of the control handle (202) through the control frame (302); a protective film (305) for limiting the upward flow of liquid is fixedly connected inside the lower side of the sleeve (301);

The protective film (305) is made of a thin film which can be penetrated by the steel needle (3);

The protective film (305) has a structure consistent with that of the unidirectional film (203).

When the medical device is used, the connecting pipe is used as the connection of the needle cylinder and the steel needle, the needle cylinder is controlled to suck by one hand of medical staff, the specific direction and the position of the steel needle are regulated by the other hand of the medical staff, so that the medical device is positioned at the abdominal cavity target pus position, the control frame is pulled by the control ball, the limit ball is matched with the limit groove to limit, the control frame enables the sleeve to move upwards, the steel needle passes through the protective film, the protective film prevents blood and tissues from polluting the steel needle when the steel needle is not sucked, pus suction is carried out after the steel needle passes through the protective film, and the pus is limited to flow downwards by the unidirectional film in the connecting pipe.

After the sample is obtained, the button cap is removed, the plunger is pulled out entirely, the sample is taken out, or the plunger is pressed to discharge the sample through the nipple.

In summary, according to the puncture device for avoiding pollution, the steel needle with the length larger than that of the poking card is matched with the poking card, so that the effect of avoiding abdominal wall pollution is achieved, medical staff can control the plunger to suck in the needle cylinder by one hand through the side ring and the upper ring, the position between the plunger and the needle cylinder is limited by the limiting component, the pressure of the needle cylinder is kept stable after the plunger is pulled, and the problems that the plunger rebounds, sucked matters flow back and abdominal cavity pollution are avoided due to the fact that the tip of the needle generates a low-pressure area when the plunger is pulled are avoided.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the utility model disclosed above are intended only to assist in the explanation of the utility model. The preferred embodiments are not exhaustive or to limit the utility model to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand and utilize the utility model. The utility model is limited only by the claims and the full scope and equivalents thereof.

Claims (8)

1. A puncture device for avoiding contamination, characterized in that: including suction portion, connecting portion and puncture portion, suction portion includes cylinder and plunger, cylinder upper end both sides fixedly connected with side ring, plunger upper end fixedly connected with goes up the ring, be equipped with the spacing subassembly that prevents the plunger and push away the notes in the cylinder between plunger and the cylinder, connecting portion include the connecting pipe, the connecting pipe can be dismantled with the cylinder and be connected, puncture portion includes the steel needle, steel needle length is greater than the card length of stabbing, steel needle and connecting pipe fixed connection.

2. The contamination-free lancing device of claim 1, wherein: the limiting assembly comprises a connecting rod, an inclined sliding block and a fixed column, wherein the plunger is fixedly connected with the connecting rod on one side of the needle cylinder, the needle cylinder is fixedly connected with the fixed column on the corresponding position of the connecting rod, the fixed column is provided with a sliding groove, the connecting rod is slidably connected in the sliding groove of the fixed column, the lower side of the connecting rod is slidably connected with the inclined sliding block in the horizontal direction, the lower side of the connecting rod is provided with a slotted hole which is slidably matched with the inclined sliding block, a spring is arranged between the inclined sliding block and the slotted hole of the connecting rod, and a plurality of clamping grooves are formed in one side of the inclined sliding block on the connecting rod, and the inclined sliding block is matched with the clamping grooves.

3. The contamination-free lancing device of claim 1, wherein: the needle cylinder is characterized in that a buckling cap is arranged on the lower side of the needle cylinder, a connecting rope is fixedly connected between the buckling cap and the needle cylinder, and the buckling cap is detachably connected with a nipple of the needle cylinder.

4. The contamination-free lancing device of claim 1, wherein: the connecting part comprises a supporting ring and a control handle, the supporting ring is fixedly connected to the outer side of the connecting pipe, and the control handle is fixedly connected to the connecting position of the connecting pipe and the steel needle.

5. The contamination-free lancing device of claim 4, wherein: the inside of the lower side of the connecting pipe is fixedly connected with a unidirectional film which limits the downward flow of liquid.

6. The contamination-free lancing device of claim 1, wherein: the steel needle is characterized in that the outer side of the steel needle is connected with a sleeve in a sliding manner, the upper side of the sleeve is fixedly connected with a control frame, the control frame is connected in a control handle on the connecting pipe in a sliding manner, the lower side of the control frame is fixedly connected with a limiting ball, a limiting groove matched with the limiting ball is formed in the control handle, and the control frame is fixedly connected with the control ball on the upper side of the control handle; the inside of sleeve pipe downside is fixedly connected with the protection film that restriction liquid upwards flows.

7. The contamination-free lancing device of claim 6, wherein: the protective film is made of a steel needle penetrable film.

8. The contamination-free lancing device of claim 6, wherein: the protective film has a structure consistent with the structure of the unidirectional film.