CN207693652U - It sunkens cord tack needle and trocar assembly of sunkening cord - Google Patents

Abstract

The utility model provides one kind and sunkens cord tack needle and trocar assembly of sunkening cord, and has the needle core and needle handle being detachably connected.Needle core is formed as solid construction, scale marker is formed on the peripheral surface of the one end of needle core being connect with needle handle, and the end face of the other end of needle core is formed as circular flat.The movable needle handle that needle handle has fixed needle handle and is socketed on fixed needle handle, one end of fixed needle handle and one end of needle core connect, the other end of fixed needle handle is connect with one end of movable needle handle, movable needle handle can be slided along the peripheral surface of fixed needle handle, and be formed with the buckle for engaging movable needle handle with the junction of fixed needle handle in movable needle handle.The utility model is to sunkening cord tack needle and trocar assembly of sunkening cord is improved so that needle handle has telescopic effect so that operator according to oneself need adjust the length of needle handle, bring many facilities to operator.

Description

It sunkens cord tack needle and trocar assembly of sunkening cord

Technical field

It sunkens cord tack needle and trocar assembly of sunkening cord the utility model is related to one kind.

Background technology

Acupoint thread-embedding therapy melting a variety of therapies as one kind, and a variety of effects are in the plyability therapy of one.It is basis The product that acupuncture theory, Chinese pharmacology and modern physics are combined, it passes through trocar assembly and the absorbability surgery of sunkening cord The biophysical effect and biochemical change that suture generates in acupuncture point, will be outside its stimulus information and energy and absorbability Section's suture is incoming internal by channels and collaterals, to achieve the purpose that treat disease.

Currently, the trocar assembly of sunkening cord clinically used is mostly by sunkening cord needle tubing and cord-embedding needle forms, on cord-embedding needle Needle handle not flexible.Moreover, when sunkening cord operation, the needle core of cord-embedding needle is inserted into puncture needle, is fully inserted into when by needle core When in puncture needle, the length of syringe needle of the syringe needle beyond puncture needle of needle core is mostly 3mm to 4mm.Therefore, such trochar of sunkening cord Component has the following problems.

Firstly, since the needle handle not flexible on cord-embedding needle, therefore, operator cannot adjust needle handle according to individual demand Length, and then bring inconvenience to operator.Secondly, when being sunken cord using such trocar assembly of sunkening cord, needle core is complete When being inserted into puncture needle, the length of syringe needle of the syringe needle beyond puncture needle of needle core is mostly 3mm to 4mm.Due to beyond needle core Syringe needle be located in tissue, the depth of needling of 3mm to 4mm increases curer's pain simultaneously, can also influence treatment effect Fruit.

Utility model content

The utility model is to generate in view of the above problems, and its purpose is to provide a kind of simple in structure, easy to operate And can realize flexible tack needle of sunkening cord, in addition a kind of trochar group of sunkening cord by above-mentioned tack needle formation of sunkening cord is provided Part.

To realize that the purpose of this utility model adopts the following technical scheme that.

The utility model of technical solution 1 is that one kind is sunken cord tack needle, has the needle core and needle handle being detachably connected.The needle Core is formed as solid construction, and scale marker is formed on the peripheral surface of the one end of the needle core being connect with the needle handle, and The end face of the other end of the needle core is formed as circular flat.The needle handle has fixed needle handle and is socketed in the fixed needle handle On movable needle handle, one end of the fixed needle handle connect with one end of the needle core, the other end of the fixed needle handle and institute One end connection of movable needle handle is stated, the activity needle handle can be slided along the peripheral surface of the fixed needle handle, and in the work Dynamic needle handle is formed with the buckle for engaging the movable needle handle with the junction of the fixed needle handle.In the fixed needle handle and The peripheral surface of the activity needle handle is respectively formed on the protrusion for being useful for increasing frictional force between hand and the needle handle.

In addition, the utility model of technical solution 2, in the tack needle of sunkening cord of the utility model of technical solution 1, the needle core A diameter of 0.4mm to 0.45mm, the length of the needle core is 48mm to 49mm, and the range of the scale marker is no more than 20mm。

In addition, the utility model of technical solution 3, in the tack needle of sunkening cord of the utility model of technical solution 2, the needle core A diameter of 0.42mm.

In addition, the utility model of technical solution 4, in the tack needle of sunkening cord of the utility model of technical solution 3, the needle core Length be 48mm.

In addition, the utility model of technical solution 5, in the tack needle of sunkening cord of the utility model of technical solution 4, the scale The scale division value of mark is 5mm.

In addition, the utility model of technical solution 6, in the tack needle of sunkening cord of the utility model of technical solution 5, the protrusion For raised line, the raised line is formed as annular along the circumferentially extending of the needle handle.

In addition, the utility model of technical solution 7, in the tack needle of sunkening cord of the utility model of technical solution 5, the protrusion Be formed as graininess.

The utility model of technical solution 8 is that one kind is sunken cord described in any one of trocar assembly, including technical solution 1-7 It sunkens cord and tack needle and sunkens cord needle tubing, the tack needle of sunkening cord is inserted into described sunken cord in needle tubing.The needle tubing of sunkening cord has phase The puncture needle and needle tubing seat to connect, when the tack needle of sunkening cord is fully inserted into via the needle tubing seat in the puncture needle, The length of syringe needle of the syringe needle of the tack needle of sunkening cord beyond the puncture needle is 1mm to 2mm.

In addition, the utility model of technical solution 9, described in the trocar assembly of sunkening cord of the utility model of technical solution 8 Needle tubing of sunkening cord is No. 8 injection needles, and the internal diameter of the puncture needle is 0.56mm, and the length of the puncture needle is 38mm.

In addition, the utility model of technical solution 10, in the trocar assembly of sunkening cord of the utility model of technical solution 8, It is socketed with spacing collar on the needle handle, it is described when the tack needle of sunkening cord is inserted into via the needle tubing seat in the puncture needle Spacing collar can be fastened on the inner wall of the needle tubing seat so that the syringe needle of the tack needle of sunkening cord exceeds the needle of the puncture needle The length of head is 1mm to 2mm.

Compared with prior art, the utility model has following advantageous effect.

Tack needle according to the present utility model of sunkening cord, in the prior art, the trocar assembly of sunkening cord clinically used is big All by sunkening cord needle tubing and cord-embedding needle forms, the not flexible of the needle handle on cord-embedding needle.Therefore, operator cannot be according to individual demand To adjust the length of needle handle, and then bring inconvenience to operator.In contrast, in the present embodiment, since needle handle has admittedly The movable needle handle determined needle handle and be socketed on fixed needle handle.One end of fixed needle handle and one end of needle core connect, fixed needle handle The other end is connect with one end of movable needle handle, and movable needle handle can be slided along the peripheral surface of fixed needle handle.Therefore, movable needle handle Needle handle can be enabled to have telescopic effect, so that operation along the setting of the peripheral surface sliding of fixed needle handle Person brings many facilities according to the length for needing adjusting needle handle of oneself to operator.

Trocar assembly according to the present utility model of sunkening cord, since trocar assembly of sunkening cord includes in the above embodiment Tack needle of sunkening cord.Therefore, the carrier as tack needle of sunkening cord, trocar assembly of sunkening cord, which has, whole is suitable for tack of sunkening cord The advantageous effect of needle.

Description of the drawings

It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art Specific implementation mode or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art Under the premise of labour, other drawings may also be obtained based on these drawings.

Fig. 1 and Fig. 2 is the integrally-built schematic diagram for the tack needle of sunkening cord for indicating the utility model；

Fig. 3 is the integrally-built schematic diagram for the needle tubing of sunkening cord for indicating the utility model；

Fig. 4 is the integrally-built schematic diagram for the trocar assembly of sunkening cord for indicating the utility model；

Fig. 5 is to indicate that the needle tubing of sunkening cord of the utility model is inserted into the whole knot of the trocar assembly of sunkening cord when sunkening cord tack needle The schematic diagram of structure；

Fig. 6 is to indicate that the needle tubing of sunkening cord of the utility model is fully inserted into the whole of the trocar assembly of sunkening cord in sunkening cord tack needle The perspective view of body structure.

Icon：10- sunkens cord tack needle；11- needle cores；12- needle handles；13- scale markers；14- fixes needle handle；15- active pointers Handle；16- protrusions；20- sunkens cord needle tubing；21- puncture needles；22- needle tubing seats.

Specific implementation mode

The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally The every other embodiment that field those of ordinary skill is obtained without making creative work, belongs to this practicality Novel protected range.

It is in the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", " perpendicular Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only The utility model and simplifying describes for ease of description, do not indicate or imply the indicated device or element must have it is specific Orientation, with specific azimuth configuration and operation, therefore should not be understood as the limitation to utility model.In addition, term " first ", " second ", " third " are used for description purposes only, and are not understood to indicate or imply relative importance.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, can also be electrical connection；Can be directly connected, can also indirectly connected through an intermediary, It can be the connection inside two elements.For the ordinary skill in the art, it can understand above-mentioned art with concrete condition The concrete meaning of language in the present invention.

Fig. 1 and Fig. 2 is the integrally-built schematic diagram for the tack needle of sunkening cord for indicating the utility model.

As depicted in figs. 1 and 2, which has the needle core 11 being detachably connected and needle handle 12.

Specifically, needle core 11 is formed as solid construction, on the peripheral surface of the one end of needle core 11 being connect with needle handle 12 It is formed with the scale marker 13 that scale division value is 5mm, and the end face of the other end of needle core 11 is formed as circular flat.Needle core 11 it is straight Diameter is 0.4mm to 0.45mm, and the length of needle core 11 is 48mm to 49mm, and the range of scale marker 13 is no more than 20mm.Wherein, needle The diameter of core 11 can be 0.4mm, 0.42mm or 0.45mm.The length of needle core 11 can be 48mm, 48.5mm or 49mm, scale The range of mark 13 can be 10mm, 15mm or 20mm.

In addition, needle handle 12 is with the movable needle handle 15 that fixation 14 at needle handle and is socketed on fixed needle handle 14.Fixed needle handle 14 One end connect with one end of needle core 11, the other end of fixed needle handle 14 is connect with one end of activity needle handle 15.Movable needle handle 15 It can slide along the peripheral surface of fixed needle handle 14, and be formed with for card in movable needle handle 15 and the junction of fixed needle handle 14 The buckle of conjunction activity needle handle 15.

It is useful for increasing between hand and needle handle 12 in addition, being respectively formed in the peripheral surface for fixing needle handle 14 and movable needle handle 15 Multiple raised the 16 of frictional force.Protrusion 16 can be raised line, and be formed as annular, protrusion 16 along the circumferentially extending of needle handle 12 It can be formed as graininess.

Fig. 3 is the integrally-built schematic diagram for the needle tubing of sunkening cord for indicating the utility model；Fig. 4 indicates the utility model It sunkens cord the integrally-built schematic diagram of trocar assembly；Fig. 5 is to indicate that the needle tubing of sunkening cord of the utility model is inserted into tack needle of sunkening cord When trocar assembly of sunkening cord integrally-built schematic diagram；Fig. 6 is to indicate that the needle tubing of sunkening cord of the utility model is fully inserted into bury The integrally-built perspective view of trocar assembly of sunkening cord in line tack needle.

As shown in Figures 3 to 6, which includes sunken cord tack needle 10 and needle tubing 20 of sunkening cord, tack of sunkening cord Needle 10 is inserted into sunkening cord in needle tubing 20.

Specifically, needle tubing 20 of sunkening cord has the puncture needle 21 being connected with each other and needle tubing seat 22, when sunkening cord, tack needle 10 passes through When being fully inserted into puncture needle 21 by needle tubing seat 22, the length of syringe needle of the syringe needle beyond puncture needle 21 for tack needle 10 of sunkening cord is 1mm to 2mm.Wherein, needle tubing 20 of sunkening cord is No. 8 injection needles, and the internal diameter of puncture needle 21 is 0.56mm, and the length of puncture needle 21 is 38mm。

In addition, being socketed with spacing collar on needle handle 12, spacing collar can be slided along the peripheral surface of needle handle 12, and spacing collar It can be fastened on by fixed card buckle on the peripheral surface of needle handle 12.When sunkening cord, tack needle 10 is inserted into puncture needle 21 via needle tubing seat 22 When interior, spacing collar can be fastened on the inner wall of needle tubing seat 22 so that the syringe needle for tack needle 10 of sunkening cord exceeds the needle of puncture needle 21 The length of head is 1mm to 2mm.

The structure of a specific implementation mode of the utility model is illustrated above, illustrates its occupation mode below.

First, operator pushes needle handle 12 so that needle core 11 is inserted into via needle tubing seat 22 in puncture needle 21.Then, long Degree is that the absorbability surgical sutures of 80mm to 120mm is placed in via the syringe needle of puncture needle 21 in puncture needle 21, then by puncture needle 21 are pierced into human acupoint.Finally, puncture needle 21 is moved back when pushing pin core 11, thus by absorbability surgical sutures body heeling-in in cave In the muscle layer or subcutaneous tissue of position.

In addition, in the above-described embodiment, since tack needle set of sunkening cord has the needle core and needle handle that are detachably connected.Therefore, Needle core and the dismountable connection type of needle handle, enable to needle handle that can be disassembled from needle core, and then realize the two of needle handle Secondary utilization, has saved resource.

In addition, in the above-described embodiment, due to being formed with quarter on the peripheral surface of the one end of needle core being connect with needle handle Scale is known.Therefore, the setting of scale marker, can the person of being conveniently operated check needle core be inserted into puncture needle when preparation length, according to Scale marker judges length that needle core is inserted into puncture needle, avoid when prepare length it is long when, operator's hand goes touching flat Scalp acupuncture, and then the contaminated problem of tack needle is caused to occur.

In addition, in the above-described embodiment, since the end face of the other end of needle core is formed as circular flat, it sunkens cord Needle is the setting of tack, reduces needle core to the muscle layer at acupuncture point or the damage of subcutaneous tissue, to make entirely to sunken cord process more Safely, effectively.

In addition, in the prior art, the trocar assembly of sunkening cord clinically used is mostly by needle tubing and the cord-embedding needle group of sunkening cord At the needle handle not flexible on cord-embedding needle.Therefore, operator cannot adjust the length of needle handle according to individual demand, in turn It brings inconvenience to operator.In contrast, in the present embodiment, since needle handle has fixed needle handle and is socketed in fixed needle handle On movable needle handle.One end of fixed needle handle and one end of needle core connect, one end of the other end of fixed needle handle and movable needle handle Connection, movable needle handle can be slided along the peripheral surface of fixed needle handle.Therefore, movable needle handle can be along the periphery of fixed needle handle The setting of face sliding, enables to needle handle to have telescopic effect, so that operator needs metering needle according to oneself The length of handle brings many facilities to operator.Moreover, after set taps into fixed pin handle to movable needle handle completely, the diameter of needle handle Become larger, increasing the rigidity of needle handle can also make operator push while operator is not susceptible to bending when operating needle handle The thrust of needle handle becomes smaller, and operator is easier to have an effect.

In addition, in the above-described embodiment, due to being formed with the junction of fixed needle handle for engaging in movable needle handle The buckle of movable needle handle.Therefore, the setting of buckle enables to the connection between movable needle handle and fixed needle handle more firm, Enhance integrally-built stability.

In addition, in the above-described embodiment, being useful for due to being respectively formed in the peripheral surface of fixed needle handle and movable needle handle Increase the protrusion of frictional force between hand and needle handle.Therefore, raised setting enables to the frictional force between hand and needle handle to increase While, moreover it is possible to because of the increase of frictional force, whole safety is improved, is avoided during sunkening cord, the hand and hand of operator Handle directly produces relative sliding, so cause to sunken cord failure the problem of occur.

In addition, in the prior art, the needle core diameter of the cord-embedding needle clinically used is mostly 0.35mm, puncture needle it is straight Diameter is mostly 0.56mm, and the gap between needle core and puncture needle is very big.Therefore, when being sunken cord, needle core pushes outside absorbability During section's suture, prodigious gap between needle core and puncture needle can so that absorbability surgical sutures is stuck in needle core and wears In gap between pricker, so cause to sunken cord failure the problem of occur.Moreover, because the smaller diameter of needle core, is easy to make Cord-embedding needle Direct perforantes cross absorbability surgical sutures, also result in the problem of sunkening cord failure and occur.In contrast, in this implementation In mode, due to a diameter of 0.42mm of needle core, a diameter of 0.56mm of puncture needle, therefore, needle core is between puncture needle Gap very little, avoid the problem that absorbability surgical sutures is stuck between needle core and puncture needle in gap and occur, Jin Erti The high success rate sunken cord.Moreover, because the larger diameter of needle core, avoids cord-embedding needle Direct perforantes and crosses absorbability surgery The problem of suture, occurs, and in turn, can also improve the success rate sunken cord.

In addition, in the prior art, the needle core length of cord-embedding needle is mostly 50mm, is fully inserted into puncture needle when by needle core When, the length of syringe needle of the syringe needle beyond puncture needle of needle core is mostly 3mm to 4mm.Due to beyond the syringe needle of needle core be located at people In body tissue, the depth of needling of 3mm to 4mm increases curer's pain simultaneously, can also influence therapeutic effect.In contrast, In present embodiment, since the length of needle core is 48mm, when tack needle of sunkening cord is fully inserted into via needle tubing seat in puncture needle, needle The length of syringe needle of the syringe needle of core beyond puncture needle is 1mm to 2mm.Therefore, the shortening of depth of needling, being capable of remissive treatment person's pain While bitter, moreover it is possible to enhance therapeutic effect.

In addition, conventionally, as the needle core length of cord-embedding needle mostly be 50mm, sunken cord tack needle also not completely When being inserted into puncture needle, the one end of needle core being connect with needle handle and the distance between needle tubing seat are long, and needle core is easy the same of bending When, it can also make operator push the thrust bigger of needle core.In contrast, in the present embodiment, due to the needle core of cord-embedding needle Length be 50mm, therefore, needle core length be 48mm setting, enable to also be not fully inserted into puncture needle in tack needle of sunkening cord When interior, the distance between the one end of needle core being connect with needle handle and needle tubing seat are shortened, and while needle core capable of being avoided to bend, can also So that operator pushes the thrust of needle core to become smaller.

In addition, in the above-described embodiment, since the range of scale marker is no more than 20mm, the scale division value of graduated scale is 5mm.Therefore, the scale division value that the range of scale marker is no more than 20mm and scale marker is the setting of 5mm, enables to operator Preparation length when needle core is inserted into puncture needle is checked more conveniently, judges that needle core is inserted into puncture needle according to scale marker Length is avoided when preparation length is long, and operator's hand removes touching tack needle, and then leads to the contaminated problem hair of tack needle It is raw.

In addition, in the above-described embodiment, since protrusion is raised line, raised line is formed as ring along the circumferentially extending of needle handle Shape.Therefore, the setting of annular protrusion, while enabling to the frictional force between hand and needle handle to increase, moreover it is possible to because of frictional force Increase, improve whole safety, avoid during sunkening cord, the hand of operator is directly produced relative sliding with handle, And then cause to sunken cord failure the problem of occur.

In addition, in the above-described embodiment, due to convexing to form as graininess.Therefore, the setting of graininess protrusion, can While the frictional force for making to go smoothly between needle handle increases, moreover it is possible to because of the increase of frictional force, improve whole safety, avoid During sunkening cord, the hand of operator is directly produced relative sliding with handle, so cause to sunken cord failure the problem of occur.

In addition, in the above-described embodiment, due to trocar assembly of sunkening cord include in the above embodiment sunken cord it is flat Scalp acupuncture.Therefore, the carrier as tack needle of sunkening cord, trocar assembly of sunkening cord, which has, whole is suitable for the beneficial of tack needle of sunkening cord Effect.

In addition, in the above-described embodiment, due to being socketed with spacing collar on needle handle, spacing collar can be along the outer of needle handle Circumferential surface slides, and spacing collar can be fastened on by fixed card buckle on the peripheral surface of needle handle.When tack needle of sunkening cord is via needle tubing seat When being inserted into puncture needle, spacing collar can be fastened on the inner wall of needle tubing seat.Therefore, the setting of spacing collar, can be long in needle core In the case that degree is more than 48mm, by adjusting position of the spacing collar on the peripheral surface of needle handle, and spacing collar is fastened on needle tubing On the inner wall of seat so that the length of syringe needle of the syringe needle for tack needle of sunkening cord beyond puncture needle is 1mm to 2mm.

In addition, in the above-described embodiment, tack needle set of sunkening cord has the needle core and needle handle being detachably connected.But it is not limited to This, needle core and needle handle may be integral structure, be equally reached said effect.

In addition, in the above-described embodiment, a diameter of 0.4mm to 0.45mm of needle core, the length of needle core be 48mm extremely The range of 49mm, scale marker are no more than 20mm.But not limited to this, the diameter of needle core, the length of needle core and scale marker Range concrete numerical value do not do and limit to, as long as setting is reasonable.

In addition, in the above-described embodiment, protrusion is raised line, raised line is formed as annular along the circumferentially extending of needle handle.But It is not limited to this, raised line can not also be set as annular, can have any shape, as long as setting is reasonable.

In addition, in the above-described embodiment, convexing to form as graininess.But not limited to this, protrusion or sheet Or other arbitrary shapes, as long as setting is reasonable.

In addition, in the above-described embodiment, when tack needle of sunkening cord is fully inserted into via needle tubing seat in puncture needle, sunkening cord flat The length of syringe needle of the syringe needle of scalp acupuncture beyond puncture needle is 1mm to 2mm.But not limited to this, and the syringe needle for tack needle of sunkening cord exceeds The specific length of the syringe needle of puncture needle, which is not done, limits to, as long as being less than 2mm.

In addition, in the above-described embodiment, spacing collar is socketed on needle handle, when sunkening cord, tack needle is inserted into via needle tubing seat When in puncture needle, spacing collar can be fastened on the inner wall of needle tubing seat so that the syringe needle of puncture needle exceeds the syringe needle for needle tubing of sunkening cord Length be 1mm to 2mm.But not limited to this, rational in the setting of the length of needle core and puncture needle, on needle handle It can not be socketed spacing collar, it is 1mm to 2mm equally to enable to the syringe needle of puncture needle to exceed the length of the syringe needle for needle tubing of sunkening cord.

In addition, sunken cord the tack needle and trocar assembly of sunkening cord of the utility model, it can be by above-mentioned various structure groups It closes, can equally play above-mentioned effect.

Finally it should be noted that：Above each embodiment is only to illustrate the technical solution of the utility model, rather than to it Limitation.Although the utility model is described in detail with reference to the above embodiment, those skilled in the art answer Work as understanding：It can still modify to the technical solution recorded in the above embodiment, either to which part or entirely Portion's technical characteristic progress equivalent replacement, and these modifications or replacements, this practicality that it does not separate the essence of the corresponding technical solution The range of novel each embodiment technical solution.

Claims (10)

1. The tack needle 1. one kind is sunken cord, which is characterized in that

   With the needle core and needle handle being detachably connected,

   The needle core is formed as solid construction, and quarter is formed on the peripheral surface of the one end of the needle core being connect with the needle handle Scale is known, and the end face of the other end of the needle core is formed as circular flat,

   The movable needle handle that the needle handle has fixed needle handle and is socketed on the fixed needle handle, one end of the fixed needle handle with One end of the needle core connects, and the other end of the fixed needle handle is connect with one end of the movable needle handle, the activity needle handle It can slide along the peripheral surface of the fixed needle handle, and be formed in the junction of the movable needle handle and the fixed needle handle Buckle for engaging the movable needle handle,

   It is respectively formed on to be useful for increasing between hand and the needle handle in the peripheral surface of the fixed needle handle and the movable needle handle and rub Wipe the protrusion of power.
2. 2. tack needle according to claim 1 of sunkening cord, which is characterized in that

   The length of a diameter of 0.4mm to 0.45mm of the needle core, the needle core are 48mm to 49mm, the amount of the scale marker Journey is no more than 20mm.
3. 3. tack needle according to claim 2 of sunkening cord, which is characterized in that a diameter of 0.42mm of the needle core.
4. 4. tack needle according to claim 3 of sunkening cord, which is characterized in that the length of the needle core is 48mm.
5. 5. tack needle according to claim 4 of sunkening cord, which is characterized in that the scale division value of the scale marker is 5mm.
6. 6. tack needle according to claim 5 of sunkening cord, which is characterized in that the protrusion is raised line, and the raised line is along institute The circumferentially extending for stating needle handle is formed as annular.
7. 7. tack needle according to claim 5 of sunkening cord, which is characterized in that described to convex to form as graininess.
8. The trocar assembly 8. one kind is sunken cord, which is characterized in that including described in any one of claim 1-7 sunken cord tack needle and Sunken cord needle tubing, the tack needle of sunkening cord be inserted into it is described sunken cord in needle tubing,

   The needle tubing of sunkening cord has the puncture needle being connected with each other and needle tubing seat, when the tack needle of sunkening cord is complete via the needle tubing seat When being fully inserted into the puncture needle, the length of the syringe needle of the syringe needle of the tack needle of sunkening cord beyond the puncture needle be 1mm extremely 2mm。
9. 9. trocar assembly according to claim 8 of sunkening cord, which is characterized in that the needle tubing of sunkening cord is No. 8 injection needles, The internal diameter of the puncture needle is 0.56mm, and the length of the puncture needle is 38mm.
10. 10. trocar assembly according to claim 8 of sunkening cord, which is characterized in that it is socketed with spacing collar on the needle handle, When the tack needle of sunkening cord is inserted into via the needle tubing seat in the puncture needle, the spacing collar can be fastened on the needle tubing On the inner wall of seat so that the length of syringe needle of the syringe needle of the tack needle of sunkening cord beyond the puncture needle is 1mm to 2mm.