CN203802548U - Sealing assembly used for puncture device and puncture device - Google Patents
Sealing assembly used for puncture device and puncture device Download PDFInfo
- Publication number
- CN203802548U CN203802548U CN201420169994.5U CN201420169994U CN203802548U CN 203802548 U CN203802548 U CN 203802548U CN 201420169994 U CN201420169994 U CN 201420169994U CN 203802548 U CN203802548 U CN 203802548U
- Authority
- CN
- China
- Prior art keywords
- sealing
- ring
- check valve
- centring ring
- black box
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 238000007789 sealing Methods 0.000 title claims abstract description 173
- 230000007306 turnover Effects 0.000 claims description 15
- 230000002787 reinforcement Effects 0.000 claims description 7
- 230000013011 mating Effects 0.000 claims description 3
- 238000002357 laparoscopic surgery Methods 0.000 abstract description 3
- 230000003014 reinforcing effect Effects 0.000 abstract 2
- 238000002324 minimally invasive surgery Methods 0.000 abstract 1
- 238000001356 surgical procedure Methods 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 12
- 239000000741 silica gel Substances 0.000 description 12
- 229910002027 silica gel Inorganic materials 0.000 description 12
- 229960001866 silicon dioxide Drugs 0.000 description 12
- 230000000694 effects Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 5
- 239000013013 elastic material Substances 0.000 description 4
- 229920001971 elastomer Polymers 0.000 description 4
- 239000004816 latex Substances 0.000 description 4
- 229920000126 latex Polymers 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229920002635 polyurethane Polymers 0.000 description 4
- 239000004814 polyurethane Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 210000000683 abdominal cavity Anatomy 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 206010011409 Cross infection Diseases 0.000 description 1
- 206010029803 Nosocomial infection Diseases 0.000 description 1
- 208000005646 Pneumoperitoneum Diseases 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 210000000080 chela (arthropods) Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007912 intraperitoneal administration Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 210000003625 skull Anatomy 0.000 description 1
- 150000003608 titanium Chemical class 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
Abstract
The utility model relates to a medical apparatus, in particular to a sealing assembly used for a puncture device and the puncture device used for minimally invasive surgeries such as laparoscopic surgeries and thoracoscopic surgeries. The sealing assembly comprises a dynamic sealing part, a support frame and a check valve. The dynamic sealing part comprises an upper portion of a sealing part, a sealing ring and a lower portion of the sealing part. The upper portion of the sealing part, the sealing ring and the lower portion of the sealing part are integrally connected. The support frame, a hollow column, has a transverse support and a longitudinal support which are integrally connected. The check valve, a funnel-shaped sealing ring, is equipped with a sealing mouth, a sealing circle and a reinforcing rib. The sealing mouth, arranged at the bottom of the check valve, is liner-typed. The sealing circle is arranged at the top of the check valve. The reinforcing rib is arranged on a funnel surface at the lower portion of the check valve. The dynamic sealing part, the support frame and the check valve are connected in a matching mode. The dynamic sealing part and the check valve are fixedly connected via the support frame. The sealing assembly used for the puncture device and the puncture device have advantages of exquisite structure, high reliability, low cost, fine sealing performance and good universality.
Description
Technical field
This utility model relates to a kind of medical apparatus and instruments, particularly relates to black box and the perforator of the perforator using in the micro-wound surgical operation such as peritoneoscope, thoracoscope.
Background technology
Laparoscopic surgery has obtained application more and more widely, for fear of nosocomial infection, the consumption of the disposable puncture device (Trocar) using in laparoscopic surgery is also increasing, ensureing on the basis of serviceability, simplified structure, reduce costs, improve performance, this trend has become the improved direction of perforator.
The hermetically-sealed construction of the perforator of prior art is made up of radial direction seal ring and check valve.In disposable puncture device, conventional check valve is infundibulate silica gel sealing ring, this infundibulate silica gel sealing ring has a through otch of straight line in funnel shaped bottom, utilize the pressure that in the contractility of silica gel itself and use procedure, carbon dioxide pneumoperitoneum forms, reach the effect of sealing.The phenomenon that this widely used funnel type silica gel sealing ring leaks air often in clinical use, sealing effectiveness is bad, and its main cause is after apparatus passes in and out repeatedly, the supporting walls distortion of funnel type silica gel sealing ring, the otch of funnel bottom coincide bad.
Radial direction seal ring of the prior art adopts the cirque structure with centre bore conventionally, and is that employing is thick in the progressively structure of attenuation of centre bore by outer rim, and the sealing ring of this structure especially easily leaks in the time that operating theater instruments is rocked, movable sealing weak effect.In addition, when in the medical silica-gel sealing ring at 5mm, while inserting the operating theater instruments of 10mm or 12mm, the reciprocating resistance of operating theater instruments is also large, and this has brought inconvenience to doctor's operation technique.Therefore, when the radial direction seal ring of employing prior art uses the operating theater instruments of 5mm on the perforator of 10mm, need to use conversion sheath pipe, this has brought inconvenience to operation technique of doctor.
In addition, the head of operating theater instruments has various shape, is particularly similar to the operating theater instruments of this class of titanium clamp pincers, in the time sending to intraperitoneal through perforator, its binding clip is the V font opening, and the infundibulate silica gel sealing ring of prior art often cannot pass through this class operating forceps.The another one shortcoming of V word infundibulate silica gel sealing ring is the operating theater instruments of or raised step fluted to heads such as ultrasound knifes, easily blocks operating theater instruments in the time exiting, and moves not smooth.
Application number is 200910036990.3 Chinese patent--high-reliability puncture outfit, and structure is comparatively simple, when apparatus turnover, can keep good air-tightness, can realize any replacing of the operating theater instruments between diameter 5mm to 10mm simultaneously; But in clinical use procedure, operating theater instruments is withdrawn from radial direction seal ring skull patch phenomenon is occurred often, greatly increases the resistance that operating theater instruments is withdrawn from, bring very big inconvenience to doctor's operation technique.
Utility model content
The purpose of this utility model is for above-mentioned weak point, and a kind of black box for perforator and perforator are provided, and can use at diameter is the operating theater instruments between 5mm～15mm, realizes its versatility; Not only good sealing effect, and resistance can greatly reduce various operating theater instruments and move back and forth thereon time, sealing member does not turn up with apparatus turnover.
This utility model takes following technical scheme to realize for black box and the perforator of perforator:
Black box for perforator comprises dynamic sealing, bracing frame and check valve; Described dynamic sealing comprises sealing member top, sealing ring and sealing member bottom, and sealing member top, sealing ring and sealing member bottom one connect;
Described sealing member top is forward infundibulate, comprises centring ring and spigot surface, and upper centring ring is located at spigot surface upper end; Described sealing member bottom comprises lower centring ring and locating surface, and described locating surface is connected with lower centring ring; Between spigot surface and locating surface, pass through described sealing ring rounding off; The lower surface of described upper centring ring is provided with centring ring groove, and the upper surface of described lower centring ring is provided with lower centring ring groove; Described dynamic sealing is provided with the axially extending bore that connects upper centring ring, lower centring ring and sealing ring, during for operating theater instruments turnover, passes through;
Support frame as described above is hollow column, has cross-brace and longitudinal bracing; The described lower surface to support ring is provided with seal groove, and the outer surface of described longitudinal bracing is provided with holddown groove;
Described check valve is infundibulate sealing ring, and check valve has sealed mouth, sealing ring and reinforcement, and described sealed mouth is arranged on check valve bottom, linearly type; Sealing ring is arranged on check valve top, on check valve lower hopper face, is provided with reinforcement;
Described dynamic sealing, bracing frame and check valve are connected, and described dynamic sealing and check valve are fixedly connected by bracing frame; Support frame as described above matches fixing with dynamic sealing by holddown groove, upper centring ring groove, lower centring ring groove; Support frame as described above matches fixing with check valve by seal groove with sealing ring.
Support frame as described above also comprises fastening support, and described fastening support is provided with the fixing buckle mating with holddown groove; Upper centring ring, spigot surface, sealing ring and the locating surface of described dynamic sealing fixed by cross-brace and the longitudinal bracing of bracing frame; The lower centring ring of described dynamic sealing is interacted and is fixed by holddown groove, fixing buckle by longitudinal bracing and the fastening support of bracing frame.
Described spigot surface is the hemisphere face of lower openings or the taper seat of lower openings.
On described spigot surface, has prerotation vane.
Angle between described locating surface and lower centring ring is 0 ° ~ 90 °, and preferably, the angle between locating surface and lower centring ring is 0 °.
Described sealing ring is O RunddichtringO.
Described dynamic sealing adopts medical elastic material manufacture, comprises medical silica-gel, medical grade rubber, medical polyurethane, medical latex or its combination, and other elastomeric materials.
Described check valve adopts medical elastic material manufacture, comprises medical silica-gel, medical grade rubber, medical polyurethane, medical latex, above-mentioned certain several combination and other elastomeric materials.
This utility model also provides a kind of perforator comprising for the black box of perforator.
The tail end tube chamber of described perforator sheath pipe is in-built described black box.
In operation process, in the time that operating theater instruments is inserted perforator, operating theater instruments is along spigot surface by sealing ring, and the radial force of sealing ring surrounds operating theater instruments, reaches sealing effectiveness, in the time that operating theater instruments is rocked, sealing ring drives spigot surface to rock together, because the contact surface of sealing ring and operating theater instruments is regular disc, remains linear contact when operating theater instruments activity with sealing ring, sealing ring can be kept radially the encircling of operating theater instruments, and abdominal cavity remains dynamic seal (packing); Simultaneously, when operating theater instruments turnover, spigot surface becomes less acute angle with operating theater instruments, to apparatus, turnover has guide effect, can adapt to the turnover of various shape apparatuses, and, because sealing ring is arranged between spigot surface and locating surface, spigot surface and locating surface are by sealing ring rounding off, greatly reduce operating theater instruments turnover and when movable and the contact area of sealing ring, while making apparatus turnover, frictional resistance is less, has reduced significantly the resistance of motion of operating theater instruments in black box and perforator.In addition, because the radial force of sealing ring exists, when operating theater instruments that to insert diameter be 5mm-12mm, sealing ring well radial loop is embraced, without changing conversion sheath pipe, and not only good sealing effect, and also the resistance of motion is low; The existence of bracing frame, in the time that operating theater instruments is extracted, can play positioning action, makes dynamic sealing can not turn up, hinder operation technique.
This utility model is for black box and the perforator of perforator, and delicate structure, reliability is high, cost is low, good sealing effect.Can be applicable to the operating theater instruments of any diameter between 5mm～15mm, realize its versatility; Can not only maintain good dynamic seal (packing) effect, and operating theater instruments when turnover resistance of motion is low; Meanwhile, the turning up of sealing member can effectively avoid operating theater instruments to extract time, makes doctor's clinical operation operation comparatively convenient.Repeatedly pass in and out after 1000 times in operating theater instruments, still can keep good sealability, can be widely used in the perforator of the micro-wound surgical operation such as peritoneoscope, thoracoscope.
Brief description of the drawings
Below with reference to accompanying drawing, the utility model is described in further detail:
Fig. 1 is the assembling partition schematic diagram of black box of the present utility model;
Fig. 2 is the perspective view of the dynamic sealing of black box of the present utility model;
Fig. 3 is the A-A cutaway view of Fig. 2;
Fig. 4 is the perspective view of the bracing frame of black box of the present utility model;
Fig. 5 is the B-B cutaway view of Fig. 4;
Fig. 6 is the perspective view of check valve of the present utility model;
Fig. 7 is the C-C cutaway view of Fig. 6;
Fig. 8 is the using state schematic diagram of this utility model perforator that black box is housed;
Fig. 9 is the perspective view 2 of the bracing frame of black box of the present utility model;
Figure 10 adopts the assembly structure schematic diagram coordinating with dynamic sealing after Fig. 9 bracing frame;
Figure 11 is the taper seat that the spigot surface of dynamic sealing of the present utility model is lower openings, the structural representation when angle between locating surface and lower centring ring is 45 °;
Figure 12 is the taper seat that the spigot surface of dynamic sealing of the present utility model is lower openings, the structural representation when angle between locating surface and lower centring ring is 0 °;
Figure 13 is the taper seat that the spigot surface of dynamic sealing of the present utility model is lower openings, when the angle between locating surface and lower centring ring is 0 °, and the structural representation while inserting operating theater instruments; Wherein H1 is the contact height of operating theater instruments dynamic sealing and operating theater instruments while passing sealing ring;
Figure 14 is the hemisphere face that the spigot surface of dynamic sealing of the present utility model is lower openings, the structural representation of dynamic sealing when the angle between locating surface and lower centring ring is 0 °;
Figure 15 is the hemisphere face that the spigot surface of dynamic sealing of the present utility model is lower openings, the structural representation while inserting operating theater instruments in dynamic sealing when the angle between locating surface and lower centring ring is 0 °; Wherein H2 is the contact height of operating theater instruments dynamic sealing and operating theater instruments while passing sealing ring;
Figure 16 is the taper seat that the spigot surface of dynamic sealing of the present utility model is lower openings, has prerotation vane, the structural representation when angle between locating surface and lower centring ring is 0 ° on spigot surface.
In figure: 1, dynamic sealing, 1-1, sealing member top, 1-1-1, upper centring ring, 1-1-2, spigot surface, 1-1-3, upper centring ring groove, 1-1-4, prerotation vane, 1-2, sealing ring, 1-3, sealing member bottom, 1-3-1, lower centring ring, 1-3-2, locating surface, 1-3-3, lower centring ring groove, 2, bracing frame, 2-1, cross-brace, 2-2, longitudinal bracing, 2-1-1, seal groove, 2-2-1, holddown groove, 2-3, fastening support, 2-3-1, fixing buckle, 3, check valve, 3-1, sealed mouth, 3-2, sealing ring, 3-3, reinforcement, 4, axially extending bore, 5, black box, 6, perforator sheath pipe, 7, operating theater instruments.
Detailed description of the invention
With reference to accompanying drawing 1 ~ 16, this utility model comprises dynamic sealing 1, bracing frame 2 and check valve 3 for the black box of perforator; Described dynamic sealing comprises sealing member top 1-1, sealing ring 1-2 and sealing member bottom 1-3, and sealing member top 1-1, sealing ring 1-2 and sealing member bottom 1-3 one connect;
Described dynamic sealing 1 top is forward infundibulate, comprises centring ring 1-1-1 and spigot surface 1-1-2, and upper centring ring 1-1-1 is located at spigot surface 1-1-2 upper end; Described sealing member bottom 1-3 comprises lower centring ring 1-3-1 and locating surface 1-3-2, and described locating surface 1-3-2 is connected with lower centring ring 1-3-1; Between spigot surface 1-1-2 and locating surface 1-3-2, pass through described sealing ring 1-2 rounding off; The lower surface of described upper centring ring 1-1-1 is provided with centring ring groove 1-1-3, and the upper surface of described lower centring ring 1-3-1 is provided with lower centring ring groove 1-3-3; Described dynamic sealing 1 is provided with the axially extending bore 4 that connects upper centring ring 1-1-1, lower centring ring 1-3-1 and sealing ring 1-2, during for operating theater instruments turnover, passes through;
Support frame as described above 2 is hollow column, has cross-brace 2-1 and longitudinal bracing 2-2; The lower surface of described cross-brace 2-1 is provided with seal groove 2-1-1, and the outer surface of described longitudinal bracing 2-2 is provided with holddown groove 2-2-1;
Described check valve 3 is infundibulate sealing ring, and check valve 3 has sealed mouth 3-1, sealing ring 3-2 and reinforcement 3-3, and described sealed mouth 3-1 is arranged on check valve 3 bottoms, linearly type; Sealing ring 3-2 is arranged on check valve 3 tops, on check valve 3 lower hopper faces, is provided with reinforcement 3-3;
Described dynamic sealing 1, bracing frame 2 and check valve 3 are connected, and described dynamic sealing 1 is fixedly connected by bracing frame 2 with check valve 3; Support frame as described above 2 matches fixing with dynamic sealing 1 by holddown groove 2-2-1, upper centring ring groove 1-1-3, lower centring ring groove 1-3-3; Support frame as described above 2 matches fixing by seal groove 2-1-1 with sealing ring 3-2 with check valve 3.
The hemisphere face that described spigot surface 1-1-2 is lower openings or the taper seat of lower openings.
On described spigot surface 1-1-2, has prerotation vane 1-1-4.
Angle between described locating surface 1-3-2 and lower centring ring 1-3-1 is 0 ° ~ 90 °, and preferably, the angle between locating surface 1-3-2 and lower centring ring 1-3-1 is 0 °.
Described sealing ring 1-2 is O RunddichtringO.
Described dynamic sealing 1 adopts medical elastic material manufacture, comprises medical silica-gel, medical grade rubber, medical polyurethane, medical latex or its combination, and other elastomeric materials.
Described check valve 3 adopts medical elastic material manufacture, comprises medical silica-gel, medical grade rubber, medical polyurethane, medical latex, above-mentioned certain several combination and other elastomeric materials.
This utility model also provides a kind of perforator comprising for the black box of perforator.
The tail end tube chamber of described perforator sheath pipe 6 is in-built described black box 5.
In operation process, in the time inserting operating theater instruments 7, operating theater instruments 7 is passed through sealing ring 1-2 along funnel type spigot surface 1-1-2, the radial force of sealing ring 1-2 surrounds operating theater instruments 7, reach sealing effectiveness, in the time that operating theater instruments 7 is rocked, sealing ring 1-2 drives spigot surface 1-1-2 to rock together, because the contact surface of sealing ring 1-2 and operating theater instruments 7 is regular disc, when operating theater instruments 7 is movable, remaining linear with sealing ring 1-2 contacts, sealing ring 1-2 can be kept radially the encircling of operating theater instruments 7, and abdominal cavity remains dynamic seal (packing).
Simultaneously, when operating theater instruments 7 passes in and out, 7 one-tenth less acute angles of spigot surface 1-1-2 and operating theater instruments, to apparatus, turnover has guide effect, can adapt to the turnover of various shape apparatuses, and, because sealing ring 1-2 is arranged between spigot surface 1-1-2 and locating surface 1-3-2, spigot surface 1-1-2 and locating surface 1-3-2 are by sealing ring 1-2 rounding off, greatly reduce operating theater instruments turnover and when movable and the contact area of sealing ring 1-2, while making apparatus turnover, frictional resistance is less, has reduced significantly the resistance of motion of operating theater instruments in black box 5 and perforator.
In addition, because the radial force of sealing ring 1-2 exists, when operating theater instruments that to insert diameter be 5mm-12mm, sealing ring 1-2 well radial loop embraces, without changing conversion sheath pipe, and not only good sealing effect, and also the resistance of motion is low; The existence of bracing frame 2, in the time that operating theater instruments is extracted, can play positioning action, makes dynamic sealing 1 can not turn up, hinder operation technique.
With reference to accompanying drawing 9 ~ 10, support frame as described above 2 is hollow columnar structures, has cross-brace 2-1 and longitudinal bracing 2-2; The lower surface of described cross-brace 2-1 is provided with seal groove 2-1-1, and the outer surface of described longitudinal bracing 2-2 is provided with holddown groove 2-2-1; Support frame as described above also comprises fastening support 2-3; Described fastening support 2-3 is provided with the fixing buckle 2-3-1 mating with holddown groove 2-2-1; Described cross-brace 2-1 is connected with longitudinal bracing 2-2 one; Upper centring ring 1-1-1, spigot surface 1-1-2, sealing ring 1-2 and the locating surface 1-3-2 of described dynamic sealing 1 are fixed by cross-brace 2-1 and longitudinal bracing 2-2; The lower centring ring 1-3-1 of described dynamic sealing 1 is interacted and is fixed by holddown groove 2-2-1, fixing buckle 2-3-1 by longitudinal bracing 2-2 and fastening support 2-3.
Embodiment 1: the taper seat that the spigot surface 1-1-2 of dynamic sealing 1 is lower openings, when angle between locating surface 1-3-2 and lower centring ring 1-3-1 is 45 °, substructure of locating surface 1-3-2 and lower centring ring 1-3-1 composition is reverse infundibulate, as shown in figure 11.
Embodiment 2: the taper seat that the spigot surface 1-1-2 of dynamic sealing 1 is lower openings, when angle between locating surface 1-3-2 and lower centring ring 1-3-1 is 0 °, locating surface 1-3-2 overlaps with lower centring ring 1-3-1 lower surface, as Figure 12, shown in 13, in the time that the diameter of insertion operating theater instruments is greater than sealing ring 1-2 diameter, the spigot surface 1-1-2 contacting with operating theater instruments inserts and elastic dilatation with operating theater instruments, when operating theater instruments passes sealing ring 1-2, except sealing ring 1-2 contacts with apparatus, separately there is the spigot surface 1-3-2 of certain area to contact with operating theater instruments, the contact height that is operating theater instruments and dynamic sealing 1 is H1, because locating surface 1-3-2 overlaps with lower centring ring 1-3-1 lower surface, contact height be in embodiment 1 contact height 1/2, therefore, the present embodiment is compared embodiment 1, the contact area of operating theater instruments and dynamic sealing 1 is less, frictional resistance when apparatus plug is less, penetration Resistance is less.
Embodiment 3: the hemisphere face that the spigot surface of dynamic sealing of the present utility model is lower openings, angle between locating surface 1-3-2 and lower centring ring 1-3-1 is 0 °, as Figure 14, shown in 15, in the time that the diameter of insertion operating theater instruments is greater than sealing ring 1-2 diameter, the spigot surface 1-1-2 contacting with operating theater instruments inserts and elastic dilatation with operating theater instruments, due to the contact surface of its circular arc, be greater than the trans D of conical spigot surface near the spigot surface trans D at sealing ring 1-2 equal height place, in the time that operating theater instruments passes sealing ring, the contact height H2 of operating theater instruments and dynamic sealing 1 is significantly less than the contact height H1 in embodiment 2, therefore, the present embodiment is compared embodiment 2, the contact area of operating theater instruments and dynamic sealing is less, frictional resistance when apparatus plug is less, penetration Resistance is less.
Embodiment 4: the taper seat that the spigot surface 1-1-2 of dynamic sealing 1 of the present utility model is lower openings, angle between locating surface 1-3-2 and lower centring ring 1-3-1 is 0 °, spigot surface 1-1-2 is upper with prerotation vane 1-1-4, as shown in figure 14, because prerotation vane 1-1-4 is PVT class material, therefore prerotation vane 1-1-4 surface is a lot of compared with spigot surface smooth surface, be that coefficient of friction is very little, in the time that the diameter of insertion operating theater instruments is greater than sealing ring 1-2 diameter, operating theater instruments contacted with prerotation vane 1-1-4 before being through to sealing ring 1-2, frictional resistance while being far smaller than operating theater instruments and spigot surface 1-1-2 Contact, therefore, the present embodiment is compared embodiment 2 and 3, frictional resistance when operating theater instruments plug is little, penetration Resistance is less.
Claims (12)
1. for a black box for perforator, it is characterized in that: comprise dynamic sealing, bracing frame and check valve; Described dynamic sealing comprises sealing member top, sealing ring and sealing member bottom, and sealing member top, sealing ring and sealing member bottom one connect;
Support frame as described above is hollow column, has cross-brace and longitudinal bracing, and described cross-brace is connected with longitudinal bracing one;
Described check valve is infundibulate sealing ring, and check valve has sealed mouth, sealing ring and reinforcement, and described sealed mouth is arranged on check valve bottom, linearly type; Sealing ring is arranged on check valve top, on check valve lower hopper face, is provided with reinforcement;
Described dynamic sealing, bracing frame and check valve are connected, and described dynamic sealing and check valve are fixedly connected by bracing frame.
2. the black box for perforator according to claim 1, is characterized in that: described dynamic sealing top is forward infundibulate, comprises centring ring and spigot surface, and upper centring ring is located at spigot surface upper end; Described sealing member bottom comprises lower centring ring and locating surface, and described locating surface is connected with lower centring ring; Between spigot surface and locating surface, pass through described sealing ring rounding off; The lower surface of described upper centring ring is provided with centring ring groove, and the upper surface of described lower centring ring is provided with lower centring ring groove; Described dynamic sealing is provided with the axially extending bore that connects upper centring ring, lower centring ring and sealing ring, during for operating theater instruments turnover, passes through.
3. the black box for perforator according to claim 2, is characterized in that: the lower surface of described cross-brace is provided with seal groove, the outer surface of described longitudinal bracing is provided with holddown groove.
4. the black box for perforator according to claim 3, is characterized in that: support frame as described above also comprises fastening support; Described fastening support is provided with the fixing buckle mating with holddown groove.
5. the black box for perforator according to claim 3, is characterized in that:
Support frame as described above matches fixing with dynamic sealing by holddown groove, upper centring ring groove, lower centring ring groove; Support frame as described above matches fixing with check valve by seal groove with sealing ring.
6. the black box for perforator according to claim 4, is characterized in that:
Upper centring ring, spigot surface, sealing ring and the locating surface of described dynamic sealing fixed by cross-brace and the longitudinal bracing of bracing frame; The lower centring ring of described dynamic sealing is interacted and is fixed by holddown groove, fixing buckle by longitudinal bracing and the fastening support of bracing frame.
7. the black box for perforator according to claim 2, is characterized in that: the hemisphere face that described spigot surface is lower openings or the taper seat of lower openings.
8. the black box for perforator according to claim 2, is characterized in that: the angle between described locating surface and lower centring ring is 0 ° ~ 90 °.
9. the black box for perforator according to claim 2, is characterized in that: on described spigot surface, have prerotation vane.
10. the black box for perforator according to claim 2, is characterized in that: the angle between described locating surface and lower centring ring is 0 °.
11. black boies for perforator according to claim 1, is characterized in that: the sealing ring of described dynamic sealing is O-ring seals.
12. 1 kinds of perforators that comprise the black box for perforator claimed in claim 1, is characterized in that: the described black box for perforator is arranged in the tail end tube chamber of perforator sheath pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420169994.5U CN203802548U (en) | 2014-04-10 | 2014-04-10 | Sealing assembly used for puncture device and puncture device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420169994.5U CN203802548U (en) | 2014-04-10 | 2014-04-10 | Sealing assembly used for puncture device and puncture device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203802548U true CN203802548U (en) | 2014-09-03 |
Family
ID=51441365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420169994.5U Expired - Lifetime CN203802548U (en) | 2014-04-10 | 2014-04-10 | Sealing assembly used for puncture device and puncture device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203802548U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103860240A (en) * | 2014-04-10 | 2014-06-18 | 南京东万生物技术有限公司 | Sealing assembly for puncture device and puncture device |
-
2014
- 2014-04-10 CN CN201420169994.5U patent/CN203802548U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103860240A (en) * | 2014-04-10 | 2014-06-18 | 南京东万生物技术有限公司 | Sealing assembly for puncture device and puncture device |
| CN103860240B (en) * | 2014-04-10 | 2016-08-17 | 南京东万生物技术有限公司 | Black box and perforator for perforator |
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Granted publication date: 20140903 |