Perforator in parathyroid hormone or lymph node art
Technical field
The present invention relates to a kind of medical apparatus and instruments, particularly relate to perforator in a kind of parathyroid hormone or lymph node art.
Background technology
Thyroid disease sickness rate obviously increases in recent years, and for thyroid malignancy, toxic nodular goiter, retrosternal goiter, or there is the thyroid pathological changes of tissue compression around air flue, esophagus etc., the most effective Therapeutic Method is still surgical operation.Correlational study shows in recent years: by puncture thyroid surrounding tissue, whether the concentration detecting the parathyroid hormone (PTH) of its puncture eluent is used for differentiating is parathyroid gland, and by puncture thyroid peripheral lymph node, detect Elityran (TG) concentration of puncture fluid and identify the presence or absence of the reliability of lymphatic metastasis and safety obtains common recognition, in conjunction with Fast Detection Technique, parathyroid gland to be completed in art and be the quick discriminating that there is lymphatic metastasis.
Chinese patent literature CN104665896A discloses a kind of thyroid needle device, comprise the syringe that front is connected with needle body, in described needle body, nook closing member is installed, injector inlet place is provided with unidirectional, be provided with in syringe and push away handle, syringe side is installed with the negative tube of band piston, and relative side is provided with reservoir, and reservoir is communicated with syringe inside by catheter.
Then, this thyroid needle device punctures in vitro, because when operating under askiatic support, the hands of operator is in vacant state, poor stability, easily because paracentesis depth is crossed dark or excessively shallow, affect the extracted amount of specimen, the accuracy simultaneously punctured is not high, may hold inaccurate, and then cause damage to human body to the organ puncture position of thyroid inside; This thyroid needle device is provided with liquid containing bottle, not only increases the complexity of device, nor is beneficial to cost-saving; This thyroid needle device, after having extracted specimen, is also needed specimen to derive, then is diluted by normal saline, add the step of operation, and delayed the time drawing testing result.
Summary of the invention
For the deficiency that prior art exists, the invention provides a kind of escapable cost, structure is simple, accuracy is high and perforator in little to injury of human, easy to operate and parathyroid hormone that the time of obtaining a result is short or lymph node art.
For solving the problems of the technologies described above, perforator in a kind of parathyroid hormone of the present invention or lymph node art, comprises
Shell;
Injection device, is arranged in described shell;
First biasing member, is arranged between described injection device and described outer casing inner wall, and its partial pressure is on described injection device, makes described injection device eject described shell and punctures;
Pressing control structure, is arranged between described shell and described injection device, can stops that described injection device ejects, after pressing, remove the stop to described injection device.
Further, described injection device is negative pressure injection device.
Further, described injection device comprises injection tube, the end, one end of described injection tube is provided with syringe needle mount pad, the other end of described injection tube is applicable to pushing one end insertion that part has piston, described syringe needle mount pad forms the connectivity slot communicated with syringe needle, be provided with near described syringe needle mount pad place the vacuum chamber surrounded by sidewall in described injection tube, and be provided with medial launder between described vacuum chamber and described connectivity slot, dynamic seal and the second biasing member is provided with in described medial launder, the partial pressure of described second biasing member is in described dynamic seal, described dynamic seal is made to be in the sealing station described vacuum chamber and described connectivity slot blocked, the medial wall of described shell is provided with lobe, described injection device is in the process ejected, described lobe props up described dynamic seal and moves to open position by the described sealing station in described medial launder, described connectivity slot is communicated with described vacuum chamber.
Further, the sidewall of described vacuum chamber is formed with the first through hole, described vacuum chamber on the described sidewall pushing part, form the top that length direction extends along the length direction of described injection tube, described pushing on one end that part is provided with piston forms groove, normal saline is preset with in described groove, and described groove forms airtight normal saline chamber after described top is inserted, the described vacuum chamber of described injection tube sidewall at one end is also provided with evacuation interface, described evacuation seam is provided with sealing member.
Further, described first biasing member is spring, and the outer wall of described injection tube is provided with the first stop part, and described spring housing is located on described injection tube, one end props up described first stop part, pushes part and insert in the bottom interior wall of one end described in the confession that the other end props up described shell.
Further, the inwall of described injection tube is provided with the second stop part, pushes part insertion and push part described in stop to come off from described injection tube described in described second stop part guides.
Further, described pressing control structure comprises the through hole be molded on shell, the pressing piece in described shell is installed in rotation on by rotating shaft, and the torsion spring be set on described rotating shaft, described pressing piece stretches out the formation press section, one end outside described through hole, the one end stretched in described shell forms support division, the partial pressure of described torsion spring is on described pressing piece, making described support division prop up described injection tube stops described injection tube to eject in described shell, the relevant position of the lateral wall of described injection tube is also provided with after described injection tube ejects, be applicable to the draw-in groove that described support division embeds.
Further, described dynamic seal comprises central part, contact site, and connect the connecting portion of described central part and described contact site, described central part is consistent with the length bearing of trend of described contact site, and described central part forms third through-hole along on the length direction of described central part, the side of described third through-hole communicates with described connectivity slot, opposite side communicates with described vacuum chamber, the sidewall being in described vacuum chamber side of described central part forms the sealing protuberance of annular, the fourth hole communicated with described third through-hole is provided with between one end that described connecting portion is connected with described central part with described sealing protuberance, described contact site is corresponding with described lobe to be arranged, under the conflict of described lobe, drive described dynamic seal to be moved to described open position by described sealing station, when wherein said dynamic seal is in described sealing station, described dynamic seal is close to sealing towards the side of described connectivity slot and the sidewall of described medial launder side, the sidewall of described sealing protuberance and described central channel opposite side is close to sealing, described fourth hole and described vacuum chamber are truncated, when described dynamic seal is in an open position, stagger in the fitted seal portion of described sealing protuberance and described medial launder, described fourth hole is communicated with described vacuum chamber.
Further; described shell comprises one end and has bottom; the cylindrical shell that the other end opens wide; the bottom of described cylindrical shell is provided with the second through hole ejecting described shell for described syringe needle; described shell also comprises and is arranged on described second through hole; prevent described syringe needle unexpected first protective sleeve ejected in described second through hole, and the open end being arranged on described cylindrical shell form the holding part of the bottom of described open end, and described holding part be provided with for described in push part the third through-hole that stretches out of handle.
Further, described third through-hole is also provided with removably, described in preventing for described handle insertion, pushes the second protective sleeve that part is misused.
Compared to prior art, in a kind of parathyroid hormone of the present invention or lymph node art at least there is following advantage in perforator:
1, in the present invention, in parathyroid hormone or lymph node art, perforator is provided with pressing piece, pressing pressing piece, injection device is ejected, injection device in ejection process, because the front end of shell contacts with human organ, so the displacement of injection device is fixing, in operation, not only can improve accuracy and the stability of puncture, also can reduce the damage that human body is caused of puncturing.
2, in the present invention, injection device ejects backward nose motion, shell is provided with lobe, dynamic seal is moved to the back-end, and then syringe needle is communicated with vacuum chamber, solve and extract the negative pressure problem of specimen, thus can extracting interstitial fluid specimen fast, simplify device, save cost.
3, in the present invention, pushing part is set on top, the normal saline be contained in advance in cavity can be made to flow out, outside drawing pushes part, the normal saline in cavity can be made to flow in vacuum chamber, and then enter syringe needle, the specimen taked can be diluted, push part by pushing the specimen syringe needle of dilution is got out, not only eliminate the step got specimen and carry out again diluting, and save the time drawing testing result.
Accompanying drawing explanation
The present invention is described in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is structural representation of the present invention;
Fig. 2 is the enlarged drawing of circled portion in Fig. 1.
In figure, Reference numeral is expressed as: 1-shell; 2-first biasing member; 3-injection tube; 4-syringe needle mount pad; 5-pushes part; 6-piston; 7-syringe needle; 8-connectivity slot; 9-vacuum chamber; 10-dynamic seal; 11-second biasing member; 12-lobe; 13-top; 14-first through hole; 15-normal saline chamber; 16-sealing member; 17-first stop part; 18-second stop part; 19-first bores a hole; 20-second through hole; 21-first protective sleeve; 22-holding part; 23-sealed internal chamber; 24-second protective sleeve; 25-hands handle; 26-rotating shaft; 27-pressing piece; 28-support division; 29-central part; 30-contact site; 31-connecting portion; 32-third through-hole; 33-seals protuberance; 34-fourth hole; 35-draw-in groove.
Detailed description of the invention
The technological means realized for making the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with detailed description of the invention, setting forth the present invention further.
As shown in Figure 1 to Figure 2, it illustrates perforator in a kind of parathyroid hormone of the present invention or lymph node art, be applicable to use in operation, in this parathyroid hormone or lymph node art perforator the contact surface of cutting tip is directly contacted to puncture organize parathyroid gland or lymph node.Perforator in a kind of parathyroid hormone of the present invention or lymph node art, comprises shell 1; Be arranged on the injection device in described shell 1; Be arranged on the first biasing member 2 between described injection device and described shell 1 inwall, the partial pressure of this first biasing member 2, on described injection device, makes described injection device eject described shell 1 and punctures; Also comprise the pressing control structure be arranged between described shell 1 and described injection device, described pressing control structure can stop that described injection device ejects, and after pressing, removes the stop to described injection device.
Such scheme is core scheme of the present invention, injection device can be realized eject in shell 1 fast, because the front end of perforator of the present invention contacts with human organ, so the ejection distance of injection device is fixing, in operation, not only can improve accuracy and the stability of puncture, also can reduce the damage that human body is caused of puncturing.
Further, preferred described injection device is negative pressure injection device, like this in parathyroid hormone of the present invention or lymph node art perforator puncture after, can by negative pressure fast automatic extract organ inner tissue liquid.
The structure of injection device has multiple, in the present embodiment, preferred described injection device comprises injection tube 3, the end, one end of described injection tube 3 is provided with syringe needle mount pad 4, the other end of described injection tube 3 is applicable to pushing one end insertion that part 5 has piston 6, described syringe needle mount pad 4 forms the connectivity slot 8 communicated with syringe needle 7, be provided with near described syringe needle mount pad 4 place the vacuum chamber 9 surrounded by sidewall in described injection tube 3, and be provided with medial launder between described vacuum chamber 9 and described connectivity slot 8, dynamic seal 10 and the second biasing member 11 is provided with in described medial launder, the partial pressure of described second biasing member 11 is in described dynamic seal 10, described dynamic seal 10 is made to be in the sealing station blocked with described connectivity slot 8 by described vacuum chamber 9, the medial wall of described shell 1 is provided with lobe 12, described injection device is in the process ejected, described lobe 12 props up described dynamic seal 10 and moves to open position by the described sealing station in described medial launder, described connectivity slot 8 is communicated with described vacuum chamber 9.Like this when the syringe needle of injection device ejects in shell 1, lobe 12 props up dynamic seal 10 and retreats, and moves to open position from sealing station, thus realizes being communicated with of connectivity slot 8 and vacuum chamber 9, the intraorganic tissue fluid be punctured is through syringe needle 7, and connectivity slot 8 is inhaled in vacuum chamber 9.
In order to the timely tissue fluid to extracting is diluted, the sidewall of described vacuum chamber 9 is formed with the first through hole 14, described vacuum chamber 9 on the described sidewall pushing part 5, form the top 13 that length direction extends along the length direction of described injection tube 3, described pushing on one end that part 5 is provided with piston 6 forms groove, normal saline is preset with in described groove, and described groove forms airtight normal saline chamber 15 after described top 13 is inserted, the described vacuum chamber 9 of described injection tube 3 sidewall at one end is also provided with evacuation interface, described evacuation seam is provided with sealing member 16.Part 5 is pushed by extracting outward, normal saline chamber 15 is communicated with the sealed internal chamber 23 of injection tube 3, flow in vacuum chamber 9 through the first through hole 14 again, after carrying out mixed diluting with the tissue fluid extracted, part 5 is pushed toward interior promotion, tissue fluid specimen after dilution is got from syringe needle 7, not only reduces operating procedure, and save the time of experiment detection architecture.
Preferably described first biasing member 2 is spring, the outer wall of described injection tube 3 is provided with the first stop part 17, described spring housing is located on described injection tube 3, and one end props up described first stop part 17, pushes part 5 and insert in the bottom interior wall of one end described in the confession that the other end props up described shell 1.
Further, in order to ensure that pushing part 5 can insert in injection tube 3 smoothly, and not easily extract from injection tube 3, the inwall of described injection tube 3 is provided with the second stop part 18, push part 5 described in described second stop part 18 guides to insert in injection tube 3, and push part 5 and extract in described injection tube 3 described in stopping.In the present embodiment, described second stop part 18 is shaped to agnail.
Described pressing control structure comprises the through hole be molded on shell 1, the pressing piece 27 in described shell 1 is installed in rotation on by rotating shaft 26, and the torsion spring be set on described rotating shaft 26, described pressing piece 27 stretches out the formation press section, one end outside described through hole, the one end stretched in described shell 1 forms support division 28, the partial pressure of described torsion spring 26 is on described pressing piece 27, making described support division 28 prop up described injection tube 3 stops described injection tube 3 to eject in described shell 1, the relevant position of the lateral wall of described injection tube is also provided with after described injection tube 3 ejects, be applicable to the draw-in groove 35 that described support division 28 embeds, the setting of draw-in groove 35, spacing at shell 1 after can ejecting described injection tube 3, when preventing subsequent operation, injection tube 3 rocks shell 1.
Described dynamic seal 10 comprises central part 29, contact site 30, and connect the connecting portion 31 of described central part 29 and described contact site 30, described central part 29 is consistent with the length bearing of trend of described contact site 30, and described central part 29 forms third through-hole 32 along on the length direction of described central part 29, the side of described third through-hole 32 communicates with described connectivity slot 8, opposite side communicates with described vacuum chamber 9, the sidewall being in described vacuum chamber 9 side of described central part 29 forms the sealing protuberance 33 of annular, one end that described connecting portion 31 is connected with described central part 29 be provided with the fourth hole 34 communicated with described third through-hole 32 between described sealing protuberance 33, described contact site 30 is corresponding with described lobe 12 to be arranged, under the conflict of described lobe 12, drive described dynamic seal 10 to be moved to described open position by described sealing station, when wherein said dynamic seal is in described sealing station, described dynamic seal is close to sealing towards the side of described connectivity slot 8 and the sidewall of described medial launder side, described sealing protuberance 33 is close to sealing with the sidewall of described central channel opposite side, described fourth hole 34 is truncated with described vacuum chamber 9, when described dynamic seal is in an open position, described sealing protuberance 33 staggers with the fitted seal portion of described medial launder, and described fourth hole 34 is communicated with described vacuum chamber 9.
Described shell 1 comprises one end and has bottom; the cylindrical shell that the other end opens wide; the bottom of described cylindrical shell is provided with the second through hole 20 ejecting described shell 1 for described syringe needle 7; described shell 1 also comprises and is arranged on described second through hole 20; prevent described syringe needle 7 from unexpected the first protective sleeve 21 ejected in described second through hole 20; and the open end being arranged on described cylindrical shell is formed the holding part 22 of the bottom of described open end, and described holding part 22 be provided with for described in push part 5 the third through-hole that stretches out of handle 25.
Described third through-hole is also provided with removably, described in preventing for described handle 25 insertion, pushes the second protective sleeve 24 that part 5 is misused.
Conveniently extract vacuum chamber out vacuum, on the sidewall of shell 1 with on evacuation interface relevant position, be also provided with the first perforation 19.
The work process of perforator in parathyroid hormone of the present invention or lymph node art:
In parathyroid hormone of the present invention or lymph node art, perforator before use, first pass through the first perforation 19, evacuation interface extracting air by air extraction device, to extract in vacuum state in vacuum chamber 9, then sealing member 16 beyond the Great Wall on evacuation interface, makes air can not enter in vacuum chamber 9.
In parathyroid hormone or lymph node art, perforator in use, first take off the first protective sleeve 21 being located at front end, after determining puncture position, syringe needle 7 is aimed at the organ of human body, pressing pressing piece 4, the stop making injection tube 3 depart from support division is outwards ejected, syringe needle 7 enters in organ through the second through hole 20, lobe 12 supports dynamic seal 10, dynamic seal 10 is made to move to open position from sealing station, thus connectivity slot 38 is communicated with vacuum chamber 53, negative pressure is produced with this, organ inner tissue liquid can be extracted fast, namely device is simplified, also save cost.After having extracted tissue fluid, perforator in parathyroid hormone or lymph node art is departed from human organ, take off the second protective sleeve 24, outside drawing pushes part 5, the normal saline in cavity 64 is made to be expelled in sealed internal chamber 23, then part 5 is inwardly pushed, pressure in sealed internal chamber 23 is increased, the normal saline of discharging flows in vacuum chamber 9 through the first through hole 14, flow in syringe needle 7 by connectivity slot 8 again, the tissue fluid specimen taked is diluted, continue inwardly to push part 6, tissue fluid specimen after dilution is got out, not only reduce operating procedure, simplify operation, but also save the time drawing testing result.One end that in parathyroid hormone of the present invention or lymph node art, the shell 1 of perforator carries out puncturing contacts with organ, the displacement of injection tube 3 is also fixing, in operation, not only can improve accuracy and the stability of puncture, also can reduce the damage that human body is caused of puncturing.
More than show and describe ultimate principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.