CN204520782U - A kind of ultrasound guidance amniocentesis device - Google Patents

A kind of ultrasound guidance amniocentesis device Download PDF

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Publication number
CN204520782U
CN204520782U CN201520196494.5U CN201520196494U CN204520782U CN 204520782 U CN204520782 U CN 204520782U CN 201520196494 U CN201520196494 U CN 201520196494U CN 204520782 U CN204520782 U CN 204520782U
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negative pressure
needle
puncture needle
pressure collector
puncture
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刘赟
张淑娟
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Abstract

The utility model discloses a kind of ultrasound guidance amniocentesis device, relate generally to ultrasonic interventional therapy apparatus field.Comprise puncture needle and needle stand, the through hole be communicated with puncture needle is set in needle stand, through hole arranges female thread away from one end of puncture needle, also comprise negative pressure collector, negative pressure collector comprises connection tube, negative pressure abandons liquid pipe and negative pressure collector tube, the outer wall of connection tube one end arranges the external screw thread matched with female thread, connection tube is abandoned liquid pipe away from externally threaded one end by three-way cock and negative pressure and is communicated with negative pressure collector tube, negative pressure abandons liquid pipe and negative pressure collector tube is columnar soft transparent plastic vacuum pipe, and the sidewall of negative pressure collector tube is arranged many group organ folds.The beneficial effects of the utility model are: puncture needle and vacuum collector are designed to one by it, namely utilize negative-pressure vacuum effect, make Srilane and flow velocity evenly, simplify operating process by on-off control again, shorten the operating time, reduce the potential safety hazard of needle point to anemia of pregnant woman and fetus of indwelling.

Description

A kind of ultrasound guidance amniocentesis device
Technical field
This utility model relates to ultrasonic interventional therapy apparatus field, specifically a kind of ultrasound guidance amniocentesis device.
Background technology
Along with socioeconomic development and ideological differentiation, the age of fertility is extended down to 30 years old to 40 years old by increasing women gradually.But the increase of pregnant woman age, the relative risk of fertility chromosomal abnormality infant also increases.According to statistics, the anemia of pregnant woman of about 40 years old, the probability of fertility chromosomal abnormality infant is 4.5%, far away higher than of the right age anemia of pregnant woman.Therefore doctor's many suggestions anemia of pregnant woman of more than 35 years old carries out amniocentesis inspection clinically.As a kind of important means of prenatal diagnosis, amniocentesis inspection is mainly used in the hereditary getting rid of fetus.Present most hereditary has become one of principal disease threatening human health, there is no effective Therapeutic Method at present.Utilizing technique can prevent the birth of heredopathia infant, is the main path reducing heredopathia.
The amniotomy of carrying out clinically now, all need to carry out under the labelling and omnidistance guiding of B ultrasonic, utilize the ultrasonic imaging technique of B ultrasonic, puncture is carried out to the all-the-way tracking of pre-determining of position and process, select the position that amniotic fluid is many, distance body surface is near, also to avoid the structure positions such as fetus, Placenta Hominis, umbilical cord and anemia of pregnant woman's blood vessel simultaneously, avoid fetus to receive the injury of puncture, also avoid thrusting other positions and cause puncture failure.
Although this inspection is great on the impact of anemia of pregnant woman and fetus, and has certain risk, in clinical manipulation, often there is a following difficult problem in the amniotomy under B ultrasonic guides:
(1) official jargon due to puncture needle is long and thin, and when carrying out amniotic fluid extraction operation, pressure is often not easily grasped, and causes draft size uneven, is unfavorable for uterine environment, and brings certain difficulty to the operation of medical personnel.
In order to solve the problem, after Individual hospitals adopts lancet puncture, then with connecting device (band wire guide etc.), puncture needle is connected with negative tube, utilize negative pressure absorbing amniotic fluid.Although solve the problem of suction inequality, complex operation, make the overlong time of puncture needle indwelling.Although the whole process of amniocentesis all B ultrasonic auxiliary under carry out, because intrauterine fetal changing position may occur at any time, stretches the activities such as limbs, and the definition of ultrasonic image is limited, therefore the needle point of indwelling is the very big hidden danger of fetal well-being.One of hints on operation of amniocentesis is exactly that inserting needle judges level postpone, completes rapidly and gets liquid operation, shorten the time of puncture needle indwelling as far as possible.And the attended operation relation of puncture needle-conduit-negative tube complexity, be unfavorable for paracenteticly carrying out fast, bring potential safety hazard to anemia of pregnant woman and fetus.
(2) concrete steps carrying out extracting amniotic fluid are: with 2 milliliters of syringe pump amniotic fluid 2 milliliters, discard (this section of amniotic fluid may contain mother cell); Again with 20 milliliters of empty needle suction amniotic fluid 20 milliliters.Therefore no matter use needle tubing or negative pressure device clinically, all need to change repeatedly syringe/negative tube, meet the requirement of above-mentioned steps, complex operation, bring difficulty to medical personnel; Operating time is longer, brings unnecessary risk to fetus and anemia of pregnant woman.
(3) needing the root needle stand position of the hand-held puncture needle of medical personnel clinically when carrying out puncture procedure, empirically carrying out into pin.Often there is certain risk: first, the requirement of general amniocentesis, for vertically to enter pin as far as possible, relies on the instant judgement of medical personnel and operation to be difficult to up to standard.Secondly, because puncture needle is elongated, and the point of application (needle stand position) distance impetus (needle point position) is far away, this just needs medical personnel's needs when entering pin slowly evenly to exert oneself, once firmly excessive, puncture needle is just easy to be out of shape under the extruding of two ends power, affects syringe needle trend, causes puncture failure.Therefore hand operation is strong to the empirical dependency of medical personnel, easily because the effect even success or failure of anthropic factor impact puncture.
(4) because puncture needle is longer, syringe needle is entering the fixation in utero do not responded afterwards, therefore the action of medical personnel changes when carrying out amniotic fluid extraction operation, teeter about very easily making puncture needle, first, while bringing misery to patient, next needle body rocked may produce displacement by related needle point, easily injures the fetus in abdomen, 3rd, the wound of expansion is also unfavorable for postoperative recovery.
Utility model content
The purpose of this utility model is to provide a kind of ultrasound guidance amniocentesis device, puncture needle and vacuum collector are designed to one by it, namely negative-pressure vacuum effect is utilized, make Srilane and flow velocity even, operating process is simplified again by on-off control, shorten the operating time, reduce the potential safety hazard of needle point to anemia of pregnant woman and fetus of indwelling.
This utility model for achieving the above object, is achieved through the following technical solutions:
A kind of ultrasound guidance amniocentesis device, comprise puncture needle and needle stand, described puncture needle is the most advanced and sophisticated hollow metal pin for inclined plane, the through hole be communicated with puncture needle is set in described needle stand, the root of described puncture needle inserts one end of needle stand through hole and is tightly connected with needle stand, described through hole arranges female thread away from one end of puncture needle, also comprise negative pressure collector, described negative pressure collector comprises connection tube, negative pressure abandons liquid pipe and negative pressure collector tube, described connection tube is the plastic conduit that external diameter equals through hole internal diameter, the outer wall of described connection tube one end arranges the external screw thread matched with female thread, described connection tube is abandoned liquid pipe away from externally threaded one end by three-way cock and negative pressure and is communicated with negative pressure collector tube, described three-way cock is the T-shaped tee ball valve structures of plastics, described negative pressure abandons liquid pipe and negative pressure collector tube is columnar soft transparent plastic vacuum pipe, and the sidewall of described negative pressure collector tube is arranged many group organ folds.
Also comprise puncture guiding puncture frame, described puncture guiding puncture frame comprises clip, support and guide pin pipe, described clip comprises clamping plate and bolt, described clamping plate are two semicircular curved splints, one end of described two clamping plate is hinged, and the other end is equipped with the positioning screw hole matched with bolt, described support is positioned in the middle of clip and guide pin pipe, and its two ends are hinged by self-locking shaft with clip and guide pin pipe respectively, one end of described self-locking shaft is exposed to outside and is provided with locking knob, the one side that described locking knob is adjacent with self-locking shaft is provided with groove, the outer wall that the inwall of described groove and self-locking shaft are exposed to outside one end is equipped with the locking screw matched, described guide pin pipe is the hollow metal pipe of internal diameter slightly larger than the external diameter of puncture needle.
The volume of described negative pressure collector tube is 30ml, and the volume that described negative pressure abandons liquid pipe is 5ml.
Described puncture needle is provided with length scale from needle point, and the least unit of described scale is millimeter.
Described puncture needle, needle stand and negative pressure collector are Dispoable medical utensil.
The outside of described puncture needle is provided with protective sleeve before use.
Contrast prior art, the beneficial effects of the utility model are:
1, this device is by negative pressure of vacuum effect; replace artificial suction, because negative-pressure sucking is evenly soft, avoid the problem that in allows manual aspiration process, unmanageable dynamics is uneven, speed is irregular; reduce the operation easier of medical personnel, be conducive to protection anemia of pregnant woman uterine environment.
2, described negative pressure collector and puncture needle are integrated design, when needs carry out amniotic fluid collection, open three-way cock, negative pressure collector can be made to be connected with puncture needle, realize the absorption of amniotic fluid.Compared with the negative pressure collecting device of prior art, avoid loaded down with trivial details Connection Step, simplify operating process, shorten the operating time, be convenient to medical personnel and complete the operation that amniotic fluid collects fast, reduce the time that puncture needle is detained as far as possible, reduce the potential safety hazard of needle point to anemia of pregnant woman and fetus.
3, described negative pressure collecting device carries negative pressure and abandons liquid pipe and negative pressure collector tube, turn three-way cock and convertible puncture needle and negative pressure abandon the connected relation between liquid pipe and negative pressure collector tube, carry out the separate collection of waste liquid (front 2-3ml amniotic fluid) and amniotic fluid, thus need not repeatedly change the liquid collectors such as syringe/negative tube, simplify the operation step further, reduce the workload of medical personnel, shorten the time that puncture needle is detained, ensure the safety of anemia of pregnant woman and fetus.
4, being connected by thread seal of described negative pressure collector and needle stand, after collection, closed three-way cock makes negative pressure collector be in sealing state, avoids amniotic fluid and contacting external air to pollute, the accuracy of guarantee check result.Screwed off and can facilitate censorship, simple operation is quick, reduces the workload of medical personnel.
5, described negative pressure collector tube is soft pipe, and arranges many group organ folds, makes the volume boil down to of negative pressure collector tube minimum, facilitates medical personnel to operate.
6, described negative pressure abandons liquid pipe and negative pressure collector tube is columnar transparent plastic vacuum tube, is convenient to the amount that medical personnel observe in operation and judge amniotic fluid.
7, the setting of described guiding puncture frame, for being fastened on Ultrasonic-B probe, by the hinge angle of adjusting pole two ends and clip and guide pin pipe, guide pin pipe is made vertically to point to target point of puncture, re-use the puncture needle under assembled state, needle stand and negative pressure collector, make puncture needle pass through guide pin pipe, and in the location of guide pin pipe with under guiding, thrust in uterine cavity of pregnant woman.It has following functions: first, the pin that enters of amniocentesis requires as keeping the vertical of puncture needle and anemia of pregnant woman's belly as far as possible, can by setting the angle of guiding puncture frame in advance, guide pin pipe is made to keep plumbness, thus biopsy needle guide vertically enters pin, avoid dependence and manually immediately judge issuable error; Secondly, by restriction and the guiding of guide pin pipe, when can avoid exerting oneself excessive, the distortion of puncture needle, also can ensure that needle point and needle body advance by pre-determined route, avoid the interference of anthropic factor, greatly improve quality and the success rate of puncture; 3rd, after syringe needle enters uterine cavity, be exposed to outside needle body owing to being subject to the fixing of guide pin pipe, stable state can be kept, even if people for touching, under the action such as operation change, still can limit puncture needle avoids it to rock, thus ensures the safety of anemia of pregnant woman and fetus.
8, the volume of described negative pressure collector tube is 30ml, is suitable for gathering 20ml liquid, and the volume that described negative pressure abandons liquid pipe is 5ml, is suitable for gathering 2-3ml liquid.
9, the scale on described puncture needle, is convenient to medical personnel when entering pin with reference to the degree of depth entering pin.
10, described puncture needle, needle stand and negative pressure collector are Dispoable medical utensil, ensure health care safety.
11, the setting of described protective sleeve, on the one hand protection needle body and needle point are not worn, avoid on the other hand the needle pricks that exposes other people, and pierce through packaging bag this device polluted.
Accompanying drawing explanation
Accompanying drawing 1 is planing surface figure of the present utility model.
Accompanying drawing 2 is schematic diagrams of the present utility model.
Label shown in accompanying drawing:
1, puncture needle; 2, needle stand; 3, through hole; 4, female thread; 5, negative pressure collector; 6, connection tube; 7, negative pressure abandons liquid pipe; 8, negative pressure collector tube; 9, external screw thread; 10, three-way cock; 11, organ fold; 12, guiding puncture frame; 13, clip; 14, support; 15, guide pin pipe; 16, clamping plate; 17, bolt; 18, positioning screw hole; 19, self-locking shaft; 20, locking knob; 21, locking screw; 22, protective sleeve.
Detailed description of the invention
Below in conjunction with specific embodiment, set forth this utility model further.Should be understood that these embodiments are only not used in restriction scope of the present utility model for illustration of this utility model.In addition should be understood that those skilled in the art can make various changes or modifications this utility model, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read this utility model instruction.
Described in the utility model is a kind of ultrasound guidance amniocentesis device, agent structure comprises puncture needle 1 and needle stand 2, described puncture needle 1 is the most advanced and sophisticated hollow metal pin for inclined plane, in described needle stand 2, the through hole 3 be communicated with puncture needle 1 is set, the root of described puncture needle 1 inserts one end of needle stand 2 through hole 3 and is tightly connected with needle stand 2, described through hole 3 arranges female thread 4 away from one end of puncture needle 1, also comprise negative pressure collector 5, by negative pressure of vacuum effect, replace artificial suction, because negative-pressure sucking is evenly soft, avoid unmanageable dynamics in allows manual aspiration process uneven, the problem that speed is irregular, reduce the operation easier of medical personnel, be conducive to protection anemia of pregnant woman uterine environment.Described negative pressure collector 5 comprises connection tube 6, negative pressure abandons liquid pipe 7 and negative pressure collector tube 8, described connection tube 6 equals the plastic conduit of through hole 3 internal diameter for external diameter, the outer wall of described connection tube 6 one end arranges the external screw thread 9 matched with female thread 4, make being connected by thread seal of described negative pressure collector 5 and needle stand 2, after collection, closed three-way cock 10 makes negative pressure collector 5 be in sealing state, avoids amniotic fluid and contacting external air to pollute, and ensures the accuracy of check result.Screwed off and can facilitate censorship, simple operation is quick, reduces the workload of medical personnel.Described connection tube 6 is abandoned liquid pipe 7 away from one end of external screw thread 9 by three-way cock 10 and negative pressure and is communicated with negative pressure collector tube 8, when needs carry out amniotic fluid collect time, open three-way cock 10, negative pressure collector 5 can be made to be connected with puncture needle 1, realize the absorption of amniotic fluid.Compared with the negative pressure collecting device of prior art, avoid loaded down with trivial details Connection Step, simplify operating process, shorten the operating time, be convenient to medical personnel and complete the operation that amniotic fluid collects fast, reduce the time that puncture needle 1 is detained as far as possible, reduce the potential safety hazard of needle point to anemia of pregnant woman and fetus.Described three-way cock 10 is the T-shaped tee ball valve structures of plastics, turn three-way cock 10 i.e. convertible puncture needle 1 and negative pressure abandons the connected relation between liquid pipe 7 and negative pressure collector tube 8, carry out the separate collection of waste liquid (front 2-3ml amniotic fluid) and amniotic fluid, thus need not repeatedly change the liquid collectors such as syringe/negative tube, simplify the operation step further, reduce the workload of medical personnel, shorten the time that puncture needle 1 is detained, ensure the safety of anemia of pregnant woman and fetus.Described negative pressure abandons liquid pipe 7 and negative pressure collector tube 8 is columnar soft transparent plastic vacuum pipe, is convenient to the amount that medical personnel observe in operation and judge amniotic fluid.And the sidewall of described negative pressure collector tube 8 is arranged many group organ folds 11, make the volume boil down to of negative pressure collector tube 8 minimum, facilitate medical personnel to operate.
The using method of this device is: when carrying out the operation of ultrasound guidance amniocentesis, first carrying out ultrasound diagnosis in the uterine cavity of anemia of pregnant woman, determining site, fetus situation, judge puncture position.(described female thread 4 and external screw thread 9 are in tightening state to this device re-using under assembled state, described needle stand 2 is connected by thread seal with negative pressure collector 5), vertically thrust puncture needle 1 on a predetermined position, after judgement arrives intrauterine assigned address, turn three-way cock 10 makes puncture needle 1 and negative pressure abandon liquid pipe 7 to come round, namely amniotic fluid enters negative pressure at the flows by action of negative pressure and abandons liquid pipe 7, when judging that the amniotic fluid reserved is about 2 ~ 3ml, turn three-way cock 10 makes puncture needle 1 and negative pressure collector tube 8 come round, amniotic fluid is namely uniform under the effect of negative pressure flows into negative pressure collector tube 8, when the amniotic fluid collected meets the amount of subsequent examination, close three-way cock 10, puncture needle 1 is closed and takes out, rotating negative pressure collector 5 makes female thread 4 remove with the annexation of external screw thread 9, make puncture needle 1, needle stand 2 is separated with negative pressure collector 5, can by negative pressure collector 5 contain amniotic fluid censorship.
In order to improve the stability into pin operation, improve quality and the success rate of operation, this device also comprises guiding puncture frame 12, described guiding puncture frame 12 comprises clip 13, support 14 and guide pin pipe 15, described clip 13 comprises clamping plate 16 and bolt 17, described clamping plate 16 are two semicircular curved splints 16, one end of described two clamping plate 16 is hinged, and the other end is equipped with the positioning screw hole 18 matched with bolt 17, it is middle with guide pin pipe 15 that described support 14 is positioned at clip 13, and its two ends respectively with clip 13 and guide pin pipe 15 hinged by self-locking shaft 19, one end of described self-locking shaft 19 is exposed to outside and is provided with locking knob 20, the one side that described locking knob 20 is adjacent with self-locking shaft 19 is provided with groove, the outer wall that the inwall of described groove and self-locking shaft 19 are exposed to outside one end is equipped with the locking screw 21 matched, described guide pin pipe 15 is the hollow metal pipe of internal diameter slightly larger than the external diameter of puncture needle 1.The setting of described guiding puncture frame 12, for being fastened on Ultrasonic-B probe, by the hinge angle of adjusting pole 14 two ends and clip 13 and guide pin pipe 15, guide pin pipe 15 is made vertically to point to target point of puncture, re-use the puncture needle 1 under assembled state, needle stand 2 and negative pressure collector 5, make puncture needle 1 pass through guide pin pipe 15, and in the location of guide pin pipe 15 with under guiding, thrust in uterine cavity of pregnant woman.It has following functions: first, the pin that enters of amniocentesis requires as keeping the vertical of puncture needle 1 and anemia of pregnant woman's belly as far as possible, can by setting the angle of guiding puncture frame 12 in advance, guide pin pipe 15 is made to keep plumbness, thus biopsy needle guide 1 vertically enters pin, avoid dependence and manually immediately judge issuable error; Secondly, by restriction and the guiding of guide pin pipe 15, when can avoid exerting oneself excessive, the distortion of puncture needle 1, also can ensure that needle point and needle body advance by pre-determined route, avoid the interference of anthropic factor, greatly improve quality and the success rate of puncture; 3rd, after syringe needle enters uterine cavity, be exposed to outside needle body owing to being subject to the fixing of guide pin pipe 15, stable state can be kept, even if people for touching, under the action such as operation change, still can limit puncture needle 1 avoids it to rock, thus ensures the safety of anemia of pregnant woman and fetus.
Because extraction process needs to discard 2-3ml amniotic fluid, and collect 20ml amniotic fluid and diagnose, the volume of described negative pressure collector tube 8 is 30ml, is suitable for gathering 20ml liquid, and the volume that described negative pressure abandons liquid pipe 7 is 5ml, is suitable for gathering 2-3ml liquid.
Conveniently medical personnel are when entering pin with reference to judging, described puncture needle 1 is provided with length scale from needle point, and the least unit of described scale is millimeter.
Preferably, described puncture needle 1, needle stand 2 and negative pressure collector 5 are Dispoable medical utensil.Ensure health care and safety.
Preferably, the outside of described puncture needle 1 is provided with protective sleeve 22 before use.On the one hand protection needle body and needle point are not worn, avoid on the other hand the needle pricks that exposes other people, and pierce through packaging bag this device polluted.
Embodiment 1: described in the utility model is a kind of ultrasound guidance amniocentesis device, agent structure comprises puncture needle 1 and needle stand 2, described puncture needle 1 is the most advanced and sophisticated hollow metal pin for inclined plane, in described needle stand 2, the through hole 3 be communicated with puncture needle 1 is set, the root of described puncture needle 1 inserts one end of needle stand 2 through hole 3 and is tightly connected with needle stand 2, described through hole 3 arranges female thread 4 away from one end of puncture needle 1, also comprise negative pressure collector 5, by negative pressure of vacuum effect, replace artificial suction, because negative-pressure sucking is evenly soft, avoid unmanageable dynamics in allows manual aspiration process uneven, the problem that speed is irregular, reduce the operation easier of medical personnel, be conducive to protection anemia of pregnant woman uterine environment.Described negative pressure collector 5 comprises connection tube 6, negative pressure abandons liquid pipe 7 and negative pressure collector tube 8, and the volume of described negative pressure collector tube 8 is 30ml, is suitable for gathering 20ml liquid, and the volume that described negative pressure abandons liquid pipe 7 is 5ml, is suitable for gathering 2-3ml liquid.Described connection tube 6 equals the plastic conduit of through hole 3 internal diameter for external diameter, the outer wall of described connection tube 6 one end arranges the external screw thread 9 matched with female thread 4, make being connected by thread seal of described negative pressure collector 5 and needle stand 2, after collection, closed three-way cock 10 makes negative pressure collector 5 be in sealing state, avoid amniotic fluid and contacting external air to pollute, ensure the accuracy of check result.Screwed off and can facilitate censorship, simple operation is quick, reduces the workload of medical personnel.Described connection tube 6 is abandoned liquid pipe 7 away from one end of external screw thread 9 by three-way cock 10 and negative pressure and is communicated with negative pressure collector tube 8, when needs carry out amniotic fluid collect time, open three-way cock 10, negative pressure collector 5 can be made to be connected with puncture needle 1, realize the absorption of amniotic fluid.Compared with the negative pressure collecting device of prior art, avoid loaded down with trivial details Connection Step, simplify operating process, shorten the operating time, be convenient to medical personnel and complete the operation that amniotic fluid collects fast, reduce the time that puncture needle 1 is detained as far as possible, reduce the potential safety hazard of needle point to anemia of pregnant woman and fetus.Described three-way cock 10 is the T-shaped tee ball valve structures of plastics, turn three-way cock 10 i.e. convertible puncture needle 1 and negative pressure abandons the connected relation between liquid pipe 7 and negative pressure collector tube 8, carry out the separate collection of waste liquid (front 2-3ml amniotic fluid) and amniotic fluid, thus need not repeatedly change the liquid collectors such as syringe/negative tube, simplify the operation step further, reduce the workload of medical personnel, shorten the time that puncture needle 1 is detained, ensure the safety of anemia of pregnant woman and fetus.Described negative pressure abandons liquid pipe 7 and negative pressure collector tube 8 is columnar soft transparent plastic vacuum pipe, is convenient to the amount that medical personnel observe in operation and judge amniotic fluid.And the sidewall of described negative pressure collector tube 8 is arranged many group organ folds 11, make the volume boil down to of negative pressure collector tube 8 minimum, facilitate medical personnel to operate.Also comprise guiding puncture frame 12, described guiding puncture frame 12 comprises clip 13, support 14 and guide pin pipe 15, described clip 13 comprises clamping plate 16 and bolt 17, described clamping plate 16 are two semicircular curved splints 16, one end of described two clamping plate 16 is hinged, and the other end is equipped with the positioning screw hole 18 matched with bolt 17, it is middle with guide pin pipe 15 that described support 14 is positioned at clip 13, and its two ends respectively with clip 13 and guide pin pipe 15 hinged by self-locking shaft 19, one end of described self-locking shaft 19 is exposed to outside and is provided with locking knob 20, the one side that described locking knob 20 is adjacent with self-locking shaft 19 is provided with groove, the outer wall that the inwall of described groove and self-locking shaft 19 are exposed to outside one end is equipped with the locking screw 21 matched, described guide pin pipe 15 is the hollow metal pipe of internal diameter slightly larger than the external diameter of puncture needle 1.The setting of described guiding puncture frame 12, for being fastened on Ultrasonic-B probe, by the hinge angle of adjusting pole 14 two ends and clip 13 and guide pin pipe 15, guide pin pipe 15 is made vertically to point to target point of puncture, re-use the puncture needle 1 under assembled state, needle stand 2 and negative pressure collector 5, make puncture needle 1 pass through guide pin pipe 15, and in the location of guide pin pipe 15 with under guiding, thrust in uterine cavity of pregnant woman.It has following functions: first, the pin that enters of amniocentesis requires as keeping the vertical of puncture needle 1 and anemia of pregnant woman's belly as far as possible, can by setting the angle of guiding puncture frame 12 in advance, guide pin pipe 15 is made to keep plumbness, thus biopsy needle guide 1 vertically enters pin, avoid dependence and manually immediately judge issuable error; Secondly, by restriction and the guiding of guide pin pipe 15, when can avoid exerting oneself excessive, the distortion of puncture needle 1, also can ensure that needle point and needle body advance by pre-determined route, avoid the interference of anthropic factor, greatly improve quality and the success rate of puncture; 3rd, after syringe needle enters uterine cavity, be exposed to outside needle body owing to being subject to the fixing of guide pin pipe 15, stable state can be kept, even if people for touching, under the action such as operation change, still can limit puncture needle 1 avoids it to rock, thus ensures the safety of anemia of pregnant woman and fetus.
The using method of this device is: by clamping plate 16 being inserted in Ultrasonic-B probe and screwing bolt 17, be anchored on Ultrasonic-B probe by guiding puncture frame 12.Ultrasonic-B probe is used to carry out ultrasound diagnosis in uterine cavity of pregnant woman, determine site, fetus situation, after judging puncture position, the hinge angle of adjusting pole 14 two ends and clip 13 and guide pin pipe 15, guide pin pipe 15 is made vertically to point to target point of puncture, screw locking knob 20, the hinge angle at fixed support 14 two ends, re-use the puncture needle 1 under assembled state, needle stand 2 and negative pressure collector 5, puncture needle 1 is made to pass through guide pin pipe 15, and in the location of guide pin pipe 15 with under guiding, thrust in uterine cavity of pregnant woman.After judgement arrives intrauterine assigned address, turn three-way cock 10 makes puncture needle 1 and negative pressure abandon liquid pipe 7 to come round, namely amniotic fluid enters negative pressure at the flows by action of negative pressure and abandons liquid pipe 7, when judging that the amniotic fluid reserved is about 2 ~ 3m1, turn three-way cock 10 makes puncture needle 1 and negative pressure collector tube 8 come round, amniotic fluid is namely uniform under the effect of negative pressure flows into negative pressure collector tube 8, when the amniotic fluid collected meets the amount of subsequent examination, close three-way cock 10, puncture needle 1 is closed and takes out, rotating negative pressure collector 5 makes female thread 4 remove with the annexation of external screw thread 9, make puncture needle 1, needle stand 2 is separated with negative pressure collector 5, can by negative pressure collector 5 contain amniotic fluid censorship.
Embodiment 2: described in the utility model is a kind of ultrasound guidance amniocentesis device, agent structure comprises puncture needle 1 and needle stand 2, described puncture needle 1 is the most advanced and sophisticated hollow metal pin for inclined plane, and described puncture needle 1 is provided with from needle point length scale, the least unit of described scale is millimeter.The outside of described puncture needle 1 is provided with protective sleeve 22 before use.On the one hand protection needle body and needle point are not worn, avoid on the other hand the needle pricks that exposes other people, and pierce through packaging bag this device polluted.In described needle stand 2, the through hole 3 be communicated with puncture needle 1 is set; the root of described puncture needle 1 inserts one end of needle stand 2 through hole 3 and is tightly connected with needle stand 2; described through hole 3 arranges female thread 4 away from one end of puncture needle 1; also comprise negative pressure collector 5; by negative pressure of vacuum effect; replace artificial suction; because negative-pressure sucking is evenly soft; avoid the problem that in allows manual aspiration process, unmanageable dynamics is uneven, speed is irregular; reduce the operation easier of medical personnel, be conducive to protection anemia of pregnant woman uterine environment.Described negative pressure collector 5 comprises connection tube 6, negative pressure abandons liquid pipe 7 and negative pressure collector tube 8, described connection tube 6 equals the plastic conduit of through hole 3 internal diameter for external diameter, the outer wall of described connection tube 6 one end arranges the external screw thread 9 matched with female thread 4, make being connected by thread seal of described negative pressure collector 5 and needle stand 2, after collection, closed three-way cock 10 makes negative pressure collector 5 be in sealing state, avoids amniotic fluid and contacting external air to pollute, and ensures the accuracy of check result.Screwed off and can facilitate censorship, simple operation is quick, reduces the workload of medical personnel.Described connection tube 6 is abandoned liquid pipe 7 away from one end of external screw thread 9 by three-way cock 10 and negative pressure and is communicated with negative pressure collector tube 8, when needs carry out amniotic fluid collect time, open three-way cock 10, negative pressure collector 5 can be made to be connected with puncture needle 1, realize the absorption of amniotic fluid.Compared with the negative pressure collecting device of prior art, avoid loaded down with trivial details Connection Step, simplify operating process, shorten the operating time, be convenient to medical personnel and complete the operation that amniotic fluid collects fast, reduce the time that puncture needle 1 is detained as far as possible, reduce the potential safety hazard of needle point to anemia of pregnant woman and fetus.Described three-way cock 10 is the T-shaped tee ball valve structures of plastics, turn three-way cock 10 i.e. convertible puncture needle 1 and negative pressure abandons the connected relation between liquid pipe 7 and negative pressure collector tube 8, carry out the separate collection of waste liquid (front 2-3ml amniotic fluid) and amniotic fluid, thus need not repeatedly change the liquid collectors such as syringe/negative tube, simplify the operation step further, reduce the workload of medical personnel, shorten the time that puncture needle 1 is detained, ensure the safety of anemia of pregnant woman and fetus.Described negative pressure abandons liquid pipe 7 and negative pressure collector tube 8 is columnar soft transparent plastic vacuum pipe, is convenient to the amount that medical personnel observe in operation and judge amniotic fluid.And the sidewall of described negative pressure collector tube 8 is arranged many group organ folds 11, make the volume boil down to of negative pressure collector tube 8 minimum, facilitate medical personnel to operate.Described puncture needle 1, needle stand 2 and negative pressure collector 5 are Dispoable medical utensil.Ensure health care and safety.
The using method of this device is: when carrying out the operation of ultrasound guidance amniocentesis, first carrying out ultrasound diagnosis in the uterine cavity of anemia of pregnant woman, determining site, fetus situation, judge puncture position.(described female thread 4 and external screw thread 9 are in tightening state to this device re-using under assembled state, described needle stand 2 is connected by thread seal with negative pressure collector 5), vertically thrust puncture needle 1 on a predetermined position, after judgement arrives intrauterine assigned address, turn three-way cock 10 makes puncture needle 1 and negative pressure abandon liquid pipe 7 to come round, namely amniotic fluid enters negative pressure at the flows by action of negative pressure and abandons liquid pipe 7, when judging that the amniotic fluid reserved is about 2 ~ 3ml, turn three-way cock 10 makes puncture needle 1 and negative pressure collector tube 8 come round, amniotic fluid is namely uniform under the effect of negative pressure flows into negative pressure collector tube 8, when the amniotic fluid collected meets the amount of subsequent examination, close three-way cock 10, puncture needle 1 is closed and takes out, rotating negative pressure collector 5 makes female thread 4 remove with the annexation of external screw thread 9, make puncture needle 1, needle stand 2 is separated with negative pressure collector 5, can by negative pressure collector 5 contain amniotic fluid censorship.

Claims (6)

1. a ultrasound guidance amniocentesis device, comprise puncture needle (1) and needle stand (2), described puncture needle (1) is the most advanced and sophisticated hollow metal pin for inclined plane, the through hole (3) be communicated with puncture needle (1) is set in described needle stand (2), the root of described puncture needle (1) inserts one end of needle stand (2) through hole (3) and is tightly connected with needle stand (2), it is characterized in that: described through hole (3) arranges female thread (4) away from one end of puncture needle (1), also comprise negative pressure collector (5), described negative pressure collector (5) comprises connection tube (6), negative pressure abandons liquid pipe (7) and negative pressure collector tube (8), described connection tube (6) equals the plastic conduit of through hole (3) internal diameter for external diameter, the outer wall of described connection tube (6) one end arranges the external screw thread (9) matched with female thread (4), described connection tube (6) is abandoned liquid pipe (7) away from one end of external screw thread (9) by three-way cock (10) and negative pressure and is communicated with negative pressure collector tube (8), described three-way cock (10) is the T-shaped tee ball valve structure of plastics, described negative pressure abandons liquid pipe (7) and negative pressure collector tube (8) is columnar soft transparent plastic vacuum pipe, and the sidewall of described negative pressure collector tube (8) is arranged many groups organ fold (11).
2. a kind of ultrasound guidance amniocentesis device according to claim 1, it is characterized in that: also comprise guiding puncture frame (12), described guiding puncture frame (12) comprises clip (13), support (14) and guide pin pipe (15), described clip (13) comprises clamping plate (16) and bolt (17), described clamping plate (16) are two semicircular curved splints (16), one end of described two clamping plate (16) is hinged, and the other end is equipped with the positioning screw hole (18) matched with bolt (17), it is middle with guide pin pipe (15) that described support (14) is positioned at clip (13), and its two ends respectively with clip (13) and guide pin pipe (15) hinged by self-locking shaft (19), one end of described self-locking shaft (19) is exposed to outside and is provided with locking knob (20), the one side that described locking knob (20) is adjacent with self-locking shaft (19) is provided with groove, the outer wall that the inwall of described groove and self-locking shaft (19) are exposed to outside one end is equipped with the locking screw (21) matched, described guide pin pipe (15) is for internal diameter is slightly larger than the hollow metal pipe of the external diameter of puncture needle (1).
3. a kind of ultrasound guidance amniocentesis device according to claim 1, it is characterized in that: the volume of described negative pressure collector tube (8) is 30ml, the volume that described negative pressure abandons liquid pipe (7) is 5ml.
4. a kind of ultrasound guidance amniocentesis device according to claim 1, it is characterized in that: (1) is provided with length scale from needle point with described puncture needle, the least unit of described scale is millimeter.
5. a kind of ultrasound guidance amniocentesis device according to claim 1, is characterized in that: described puncture needle (1), needle stand (2) and negative pressure collector (5) are Dispoable medical utensil.
6. a kind of ultrasound guidance amniocentesis device according to claim 1, is characterized in that: the outside of described puncture needle (1) is provided with protective sleeve (22) before use.
CN201520196494.5U 2015-04-02 2015-04-02 A kind of ultrasound guidance amniocentesis device Expired - Fee Related CN204520782U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107212905A (en) * 2017-07-18 2017-09-29 北京大学深圳医院 Negative pressure test tube amniocentesis device
CN108309365A (en) * 2018-03-15 2018-07-24 无锡市人民医院 All-directional ultrasonic punctures sampler
CN109662761A (en) * 2019-02-20 2019-04-23 上海市肺科医院 Multi-angle puncture and injection of medicine device in ultrasonic guidance lower plane
CN111419209A (en) * 2020-04-22 2020-07-17 南京脑科医院 Retractable piezometric tube for lumbar puncture

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107212905A (en) * 2017-07-18 2017-09-29 北京大学深圳医院 Negative pressure test tube amniocentesis device
CN108309365A (en) * 2018-03-15 2018-07-24 无锡市人民医院 All-directional ultrasonic punctures sampler
CN108309365B (en) * 2018-03-15 2023-08-11 徐州医科大学附属医院 Omnibearing ultrasonic puncture sampling device
CN109662761A (en) * 2019-02-20 2019-04-23 上海市肺科医院 Multi-angle puncture and injection of medicine device in ultrasonic guidance lower plane
CN111419209A (en) * 2020-04-22 2020-07-17 南京脑科医院 Retractable piezometric tube for lumbar puncture

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