A kind of tissue penetration sheathTechnical field
This utility model is related to medical puncturing sheath field, a kind of especially tissue penetration sheath, rather than vascular puncture sheath.
Background technology
At present in the swollen thing percutaneous biopsy of lung, in order to meet the demand of SABC and gene test, lung is generally requiredSwollen thing strip of tissue 2-4 bar, after conventional lung bioplsy pin puncture takes out the swollen thing tissue of a lung, needs to extract biopsy needle, then row the2nd, 3,4 lung punctures, can cause multiple lung tissue penetration damage, cause the incidence rate of the complication such as bleeding, pneumothorax to increase；SeparatelyOutward, some patientss need Transthoracic Biopsy and pulmonary carcinoma radio-frequency ablation procedure are completed in seance, and current method is leading lungAspiration biopsy, pulls out after pin row radio-frequency ablation procedure again（Because Transthoracic Biopsy pin and radio frequency ablation needle are two kinds of pins）, this can causeThe injury of lung for repeatedly puncturing, the incidence rate for also resulting in the complication such as bleeding, pneumothorax increase, and are unfavorable for patient health.
Utility model content
In view of currently available technology above shortcomings, this utility model provides a kind of tissue penetration sheath, for needingRepeatedly Transthoracic Biopsy or it is sequential carry out in tissue needle biopsy and radiofrequency ablation therapy art, puncture needle or radio frequency ablation needle fromPuncture intrathecal to pass through, can reduce and repeatedly puncture the tissue injury for causing.
It is to reach above-mentioned purpose, of the present utility model to adopt the following technical scheme that：
A kind of tissue penetration sheath, including puncture sheath body, positioned at the connecting tube for puncturing sheath body upper end, the connectionPipe one end is connected to puncture sheath upper end, and the other end is provided with the wedge joint that can connect syringe nipple；On the puncture sheath bodyEnd is the cylindrical parts with rubber seal, and lower end is blunt type tip；The connecting tube is provided with a valve.
Used as optimal technical scheme of the present utility model, the length of the puncture sheath body is 13-17cm.
Used as optimal technical scheme of the present utility model, the material of the puncture sheath body is steel or iron material, canTo keep own form.
Used as optimal technical scheme of the present utility model, the upper end of the puncture sheath body is the circle with rubber sealCylindrical part.
Used as optimal technical scheme of the present utility model, the lower end of the puncture sheath body is blunt type tip.
As optimal technical scheme of the present utility model, on the cylindrical parts, there is a connecting tube.
Used as optimal technical scheme of the present utility model, the connecting tube other end is provided with the wedge that can connect syringe nippleShape joint.
Used as optimal technical scheme of the present utility model, the connecting tube is provided with a valve.
This utility model is related to a kind of tissue penetration sheath, including puncture sheath body, positioned at the sheath body upper end of puncturingConnecting tube, described connecting tube one end are connected to puncture sheath upper end, and the other end is provided with the wedge joint that can connect syringe nipple；InstituteIt is the cylindrical parts with rubber seal to state puncture sheath body upper end, and lower end is blunt type tip；The connecting tube is provided withOne valve.Puncture sheath of the present utility model coordinates biopsy needle to use, and is enclosed within the epitheca of biopsy needle, and lung puncture successfully takes out oneAfter the swollen thing tissue of lung, it is only necessary to extract biopsy needle, sheath will be punctured and stayed in lung tissue, when taking the swollen thing strip of tissue of lung for the 2nd, 3,4 times,Puncture needle passes through from intrathecal is punctured, and can reduce and repeatedly puncture the lung injury for causing；In addition, this puncture sheath can be additionally used in needingTo complete in seance in the patient of Transthoracic Biopsy and pulmonary carcinoma radio-frequency ablation procedure, leading Transthoracic Biopsy extracts punctureAfter pin, radio frequency ablation needle is sent into along sheath is punctured, directly reaches target focus and treated, it is seen that avoid the repeated puncture of lung tissue,And then reduce injury of lung.
Description of the drawings
For the technical scheme being illustrated more clearly that in this utility model embodiment, below will be to making needed for embodimentAccompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present utility model,For those of ordinary skill in the art, on the premise of not paying creative work, can be with according to these accompanying drawings acquisitionsOther accompanying drawings.
Fig. 1 is structural representation of the present utility model.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried outClearly and completely describe, it is clear that described embodiment is only this utility model a part of embodiment, rather than wholeEmbodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under the premise of creative work is madeThe every other embodiment for being obtained, belongs to the scope of this utility model protection.
As shown in figure 1, this utility model provides a kind of tissue penetration sheath, including puncture sheath body 1, positioned at puncturing sheath bodyThe connecting tube 4 of 1 upper end；It is the cylindrical parts 3 with rubber seal to puncture 1 upper end of sheath body, and lower end is blunt type tip 2；Connecting tube 4 is provided with a valve 5, and the other end is provided with the wedge joint 6 that can connect syringe nipple.
Puncture sheath of the present utility model is needing multiple Transthoracic Biopsy or sequential is carrying out tissue needle biopsy and radio frequencyIn ablation art, puncture needle or radio frequency ablation needle pass through from intrathecal is punctured, and can reduce and repeatedly puncture the tissue injury for causing.Specially blunt type tip 2 will not increase lung injury, such as incision, the pricking wound of sharp type part；It is steel to puncture sheath body 1Or iron material, own form can be kept, it is allowed to which biopsy needle passes through from intrathecal, focus of going directly, it is to avoid biopsy needle repeated puncture,Reduce lung injury；The connecting tube other end is provided with the wedge joint that can connect syringe nipple, can be after pneumothorax occurs, outwardSyringe is connect, intrathoracic gas is extracted out, it is to avoid repeated puncture, tissue injury is reduced.
In the present embodiment, the length for puncturing sheath body is 13-17cm, more preferably 15cm, that is to say, that the lengthDegree can be very good to coordinate the biopsy needle of 20cm to use.
In the present embodiment, the upper end for puncturing sheath body is the cylindrical parts with rubber seal, rubber sealBe conducive to biopsy to be needled into pass through, while can be with air-isolation, it is possible to achieve prevent other pollutant such as the dust in the external world from carrying outTo puncturing sheath in this.
In the present embodiment, connecting tube is provided with a valve, is conducive to external syringe to extract intrathoracic gas out when openingBody, is conducive to air-isolation during closing.
In the present embodiment, sheath and biopsy needle are punctured or radio frequency ablation needle is supported the use, therefore puncture the internal diameter of sheath bodyIt is designed with reference to biopsy needle or radio frequency ablation needle.
In sum, this utility model is related to a kind of tissue penetration sheath, including punctures sheath body, punctures sheath sheet positioned at describedThe connecting tube of body upper end, described connecting tube one end are connected to puncture sheath upper end, and the other end is provided with the wedge that can connect syringe nippleShape joint；The puncture sheath body upper end is the cylindrical parts with rubber seal, and lower end is blunt type tip；The connectionPipe is provided with a valve.Puncture sheath of the present utility model is needing multiple Transthoracic Biopsy or sequential is carrying out tissue needle biopsyIn radiofrequency ablation therapy art, puncture needle or radio frequency ablation needle pass through from intrathecal is punctured, and can reduce and repeatedly puncture the group for causingKnit damage.Specially blunt type tip will not increase lung injury, such as incision, the pricking wound of sharp type part；Puncture sheath bodyFor steel or iron material, own form can be kept, it is allowed to which biopsy needle passes through from intrathecal, focus of going directly, it is to avoid biopsy needle weightIt is multiple to puncture, reduce lung injury；The connecting tube other end is provided with the wedge joint that can connect syringe nipple, can send out in pneumothoraxAfter life, external syringe extracts intrathoracic gas out, it is to avoid repeated puncture, reduces tissue injury.
The above, specific embodiment only of the present utility model, but protection domain of the present utility model do not limit toIn this, any those skilled in the art disclosed in this utility model in technical scope, the change that can be readily occurred inChange or replace, should all cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should be with describedScope of the claims is defined.