CN210903474U - Animal cavity viscera puncture outfit operated by single person - Google Patents
Animal cavity viscera puncture outfit operated by single person Download PDFInfo
- Publication number
- CN210903474U CN210903474U CN201921187992.8U CN201921187992U CN210903474U CN 210903474 U CN210903474 U CN 210903474U CN 201921187992 U CN201921187992 U CN 201921187992U CN 210903474 U CN210903474 U CN 210903474U
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- sleeve
- inner sleeve
- side wall
- pipe
- bolt
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- Expired - Fee Related
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- 210000001835 viscera Anatomy 0.000 title claims abstract description 23
- 241001465754 Metazoa Species 0.000 title claims abstract description 13
- 238000002347 injection Methods 0.000 claims abstract description 28
- 239000007924 injection Substances 0.000 claims abstract description 28
- 238000003780 insertion Methods 0.000 claims description 11
- 230000037431 insertion Effects 0.000 claims description 11
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 abstract description 3
- 210000003932 urinary bladder Anatomy 0.000 description 11
- 230000035515 penetration Effects 0.000 description 7
- 210000000056 organ Anatomy 0.000 description 6
- 238000013461 design Methods 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 238000004043 dyeing Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000002792 vascular Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 2
- 238000010186 staining Methods 0.000 description 2
- 230000003187 abdominal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001338 necrotic effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 210000003708 urethra Anatomy 0.000 description 1
- 230000009278 visceral effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model discloses a one-man operated animal cavity viscera puncture outfit, which comprises a sleeve pipe component, a piston component and an injection needle head, wherein the piston component and the injection needle head are arranged in the sleeve pipe component and used for generating negative pressure in the sleeve pipe; one end of the outer sleeve is arranged on the side wall of the sleeve or the side wall of the suction pipe, and the other end of the outer sleeve is positioned in the suction pipe or outside the suction pipe. The utility model discloses a puncture ware adopts the fixed method of negative pressure suction to prevent that the jaw from haring the dirty wall, and syringe needle advances the needle along the outer tube simultaneously, can prevent that operating personnel hand shake from bringing the operating error.
Description
Technical Field
The utility model relates to the field of medical treatment and animal experiments, in particular to a one-man operated puncture outfit for animal cavity viscera.
Background
In the past, animal research often needs to carry out staining or medicine injection in a cavity organ cavity, and the operation of cavity organ puncture under direct vision is related. The following are examples of mouse studies: when the cavity internal organs are punctured for medicine injection or dyeing, if the cavity internal organs are in a filling state, the puncture point is better mastered, and the filling of the cavity internal organs during puncturing can not be ensured, so that the fixation of the puncture point and the needle insertion depth are difficult to control when the cavity internal organs are small in volume or emptied, in order to prevent the needle point from only penetrating into a tissue wall without penetration, three points of tissues such as bladder and the like of the cavity internal organs are often required to be clamped by three vascular clamps, a puncture plane and a puncture center are determined, and then the puncture operation is carried out by the other hand, because the operable range is often smaller than 1 square centimeter, the distance between the two hands during operation is too far, the slight shake during one-hand operation and the strong clamping force of the vascular clamps, the following problems often occur:
a. the wall of the hollow visceral organ is clamped, necrotic and cracked when the hollow visceral organ is damaged and clamped; the wall of the cavity visceral organ is very thin, and the wall of the cavity visceral organ is torn when the cavity visceral organ is clamped;
b. when the deviation of the puncture position is overlarge, three vascular clamps fix the puncture plane, the plane changes due to the slight shake of the hands of the operator, and the position is difficult to control during needle insertion;
c. the wall thickness of the hollow organs of different animals is different, and how to insert the needle accurately.
Disclosure of Invention
In order to solve the problem, the utility model provides a one-man operation's animal cavity internal organs puncture ware adopts the fixed method of negative pressure attraction to prevent that the jaw from haring the dirty wall, and the syringe needle advances the needle along the outer tube simultaneously and prevents, can prevent that operating personnel hand shake from bringing the operating error.
The technical scheme is as follows:
a kind of single-person operated animal cavity viscera puncture outfit, including the thimble assembly, set up in the thimble assembly and piston assembly used for making the thimble produce the negative pressure, syringe needle in the thimble assembly, the thimble assembly includes quill and outer thimble used for inserting the syringe needle, the front end of the quill connects with the suction pipe, make the dirty wall of the apparatus laminate in the mouth of pipe of the suction pipe through the negative pressure that the displacement of the piston assembly produces; one end of the outer sleeve is arranged on the side wall of the sleeve or the side wall of the suction pipe, and the other end of the outer sleeve is positioned in the suction pipe or outside the suction pipe.
Preferably, the orifice of the outer sleeve is flush with the orifice of the suction pipe or slightly protrudes out of the orifice of the suction pipe.
Preferably, a first transverse notch is arranged on the side wall of the tail end of the sleeve along the axial direction of the sleeve, and a plurality of vertical notches are arranged along one side or two sides of the first transverse notch; the piston assembly comprises a piston bolt and a piston column arranged in the sleeve, wherein one end of the piston bolt is fixed on the piston column, the other end of the piston bolt extends out of the side wall of the sleeve from the first transverse notch or the vertical notch, and the piston column displaces along the first transverse notch and is buckled in different vertical notches through the piston bolt to adjust the negative pressure in the suction pipe.
Preferably, the outer sleeve is also provided with an inner sleeve for facilitating the insertion of the injection needle, the inner sleeve comprises an inner sleeve tube body and a top cap arranged at the top of the inner sleeve tube body, and the top cap is concave as a whole; the injection needle comprises a needle seat and a needle tube arranged on the needle seat, wherein the whole needle seat is convex and is matched with the top cap.
Preferably, the outer side wall of the inner sleeve pipe body is further provided with a plurality of inner sleeve pipe clamping grooves and a plug pin assembly matched with the inner sleeve pipe clamping grooves; the side wall of the sleeve is provided with a channel for inserting the bolt component, and the bolt component is arranged in the channel in a telescopic mode.
Preferably, the bolt assembly comprises a top rod inserted into the inner sleeve clamping groove, a bolt for driving the top rod to move back and forth, and a spring for applying a force to the top rod; one end of the spring is connected with the closed end of the channel, and the other end of the spring is connected with the ejector rod; and a second transverse notch used for forward and backward displacement of the bolt is further arranged on the side wall of the sleeve along the axial direction of the sleeve, one end of the bolt is fixed on the ejector rod, and the other end of the bolt extends out of the side wall of the sleeve from the second transverse notch.
Preferably, the corresponding inner sleeve clamping groove is provided with an identification number on the outer side wall of the inner sleeve pipe body.
Preferably, on the same inner sleeve axial section, the inner sleeve clamping grooves are uniformly distributed on the side wall of the inner sleeve at equal intervals, and each clamping groove corresponds to different identification numbers; or the inner sleeve clamping grooves are uniformly distributed on the side wall of the inner sleeve at equal intervals in a spiral shape, and each clamping groove corresponds to different identification numbers.
Preferably, the first transverse notch is rectangular, the vertical notches are rectangular, and the vertical notches are distributed on one side or two sides of the first transverse notch at equal intervals; the first transverse notch is vertical to the vertical notch.
Preferably, the included angle between the cross section of the sleeve and the cross section of the suction pipe is less than 90 degrees; the outer sleeve is parallel to the axis of the suction pipe; the pipe orifice of the outer sleeve and the pipe orifice of the suction port are both subjected to fillet treatment.
The beneficial effects are as follows:
1. the utility model discloses a puncture outfit adopts the vacuum aspiration principle, thereby adjusts the negative pressure size through the piston sliding displacement in the cover intraductal, is applicable to various little volume cavity internal organs and little operation range, effectively reduces tearing and the damage on cavity internal organs surface.
2. The design of the outer sleeve can effectively guide the needle insertion, and prevent the shaking of the hand of an operator from causing the position error of the needle insertion.
3. An inner sleeve capable of moving back and forth in the needle insertion direction is further arranged in the outer sleeve, so that the puncture needle can adapt to puncture scenes with different thicknesses of the visceral walls of the animal cavities; meanwhile, the outer side wall of the inner sleeve pipe body is also provided with an identification line at the position corresponding to the inner sleeve clamping groove, so that an operator can conveniently select the position of the inner sleeve pipe according to different application scenes, the needle can be conveniently and accurately inserted, and the risk that the needle head is stopped in the wall and penetrates through the hollow viscera is reduced; the needle seat of the injection needle is mostly convex, so that the needle tube is conveniently inserted by an operator, and the top of the inner sleeve is designed with a concave top cap which is just matched with the convex needle seat.
4. The inner sleeve is fixed by the plug pin to be very stable, so that wrong needle insertion caused by unstable sliding of the inner sleeve under the action of external force is prevented.
5. The whole structure is simple, the use is convenient, the operation can be performed by one person, and manpower and material resources are saved.
Drawings
FIG. 1 shows a schematic structural view of a puncture instrument;
FIG. 2 shows a schematic structural diagram among the pin assembly, the inner sleeve and the outer sleeve;
FIG. 3 illustrates a schematic structural view between the piston assembly and the sleeve;
FIG. 4 shows a schematic structural view of the inner sleeve;
fig. 5 shows a schematic view of the structure of the injection needle.
Wherein: 1-a sleeve; 1-1-a first transverse notch; 1-2-vertical notches; 1-3-a second transverse notch; 2-a suction pipe; 3-outer sleeve; 4-piston bolt; 5-a piston column; 6-inner sleeve; 6-1-top cap; 6-2-inner sleeve clamping groove; 6-3-ejector pin; 6-4-bolt; 6-5-spring; 7-a needle seat; 8-needle tube.
Detailed Description
In order to make the purpose and technical solution of the embodiments of the present invention clearer, the following description will clearly and completely describe the technical solution of the embodiments of the present invention by combining the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Referring to fig. 1 to 5, the syringe comprises a sleeve assembly, a piston assembly arranged in the sleeve assembly and used for generating negative pressure in the sleeve, and an injection needle, wherein the sleeve assembly comprises a sleeve 1 and an outer sleeve 3 used for inserting the injection needle, the front end of the sleeve is connected with a suction pipe 2, and the dirty wall of the syringe is attached to the nozzle of the suction pipe 2 through the negative pressure generated by the displacement of the piston assembly; one end of the outer sleeve is arranged on the side wall of the sleeve or the side wall of the suction pipe, and the other end of the outer sleeve is positioned in the suction pipe or outside the suction pipe. The technical scheme adopts a fixing method of negative pressure suction to prevent the forceps from damaging the wall of the dirty vessel, and meanwhile, the injection needle head is prevented from being inserted along the outer sleeve, so that the operation error caused by shaking of the hand of an operator can be prevented.
Furthermore, in order to prevent the instability of the negative pressure in the suction pipe 2 caused by a little air leakage existing in the communication between the outer sleeve and the external atmospheric pressure, the pipe orifice of the outer sleeve is flush with the pipe orifice of the suction pipe or the pipe orifice of the outer sleeve slightly protrudes out of the pipe orifice of the suction pipe.
Furthermore, in order to conveniently operate the piston assembly and keep the negative pressure in the suction port pipe stable, a first transverse notch 1-1 is arranged on the side wall of the tail end of the sleeve along the axial direction of the sleeve, and a plurality of vertical notches 1-2 are arranged along one side or two sides of the first transverse notch; the piston assembly comprises a piston bolt 4 and a piston column 5 arranged in the sleeve, wherein one end of the piston bolt is fixed on the piston column, the other end of the piston bolt extends out of the side wall of the sleeve from the first transverse gap 1-1 or the vertical gap 1-2, and the piston column displaces along the first transverse gap and is buckled in different vertical gaps through the piston bolt to adjust the negative pressure in the suction pipe.
Furthermore, in order to operate the piston assembly conveniently, the first transverse notch is rectangular, the vertical notches are rectangular, and the vertical notches are distributed on one side or two sides of the first transverse notch at equal intervals; the first transverse notch is vertical to the vertical notch.
Further, in order to accurately insert the needle, an inner sleeve 6 which is convenient for inserting the injection needle is arranged on the outer sleeve, the inner sleeve comprises an inner sleeve pipe body and a top cap 6-1 arranged at the top of the inner sleeve pipe body, and the whole top cap is concave; the injection needle comprises a needle seat 7 and a needle tube 8 arranged on the needle seat, wherein the needle seat is wholly convex and is matched with the top cap.
Furthermore, the outer side wall of the inner sleeve pipe body is also provided with a plurality of inner sleeve pipe clamping grooves 6-2 and a plug pin assembly matched with the inner sleeve pipe clamping grooves; a channel for inserting the bolt component is arranged on the side wall of the sleeve, and the bolt component is telescopically arranged in the channel; the bolt assembly comprises an ejector rod 6-3 inserted into the inner sleeve clamping groove, a bolt 6-4 used for driving the ejector rod to move back and forth, and a spring 6-5 used for applying a force to the ejector rod; one end of the spring is connected with the closed end of the channel, and the other end of the spring is connected with the ejector rod; and a second transverse notch 1-3 for the front and rear displacement of the bolt is further arranged on the side wall of the sleeve along the axial direction of the sleeve, one end of the bolt is fixed on the ejector rod, the other end of the bolt extends out of the side wall of the sleeve from the second transverse notch, and the bolt is displaced along the second transverse notch 1-3 so as to drive the ejector rod to eject or retract. The inner sleeve is fixed by the plug pin to be very stable, so that wrong needle insertion caused by unstable sliding of the inner sleeve under the action of external force is prevented.
Further, correspond interior sleeve pipe draw-in groove position, still set up the identification number on the interior sleeve pipe body lateral wall, this embodiment provides two kinds of modes: 1) on the same inner sleeve axial section, inner sleeve clamping grooves 6-2 are uniformly distributed on the side wall of the inner sleeve at equal intervals, and each clamping groove corresponds to different identification numbers; 2) the inner sleeve clamping grooves 6-2 are uniformly distributed on the side wall of the inner sleeve in a spiral shape at equal intervals, and each clamping groove corresponds to different identification numbers. Due to the fact that the identification number is arranged, an operator can conveniently select the insertion depth of the inner sleeve according to different application scenes, needle insertion is facilitated accurately, and the risk that the needle head is stopped in the wall and penetrates through the hollow viscera is reduced.
Can design contained angle control between sheathed tube cross section and the cross section of suction pipe according to actual conditions be less than 90 can, the puncture ware that this embodiment of the embodiment provided, the contained angle between sheathed tube cross section and the cross section of suction pipe is about 30, outer tube one end sets up on the suction pipe lateral wall, the other end mouth of pipe of outer tube flushes with suction pipe mouth of pipe, whole outer tube is on a parallel with the axis of suction pipe, be favorable to advancing the needle perpendicularly and convenient to the internal organs wall thickness like this, the draw-in groove, the needle tubing specification, pierce the simple corresponding relation of degree of depth design, high durability and convenient use, it is accurate to advance the needle.
In addition, the orifice of the outer sleeve and the orifice of the suction pipe are both subjected to fillet treatment, so that the damage to the visceral organs at the contact part of the orifice of the outer sleeve and the orifice of the suction pipe is prevented.
Referring to fig. 1 to 5, the specific working principle is as follows:
1. first, the following needles are introduced, and the needle tube is divided into two specifications:
the length of the needle tube with the specification 1 is 22.5mm, the depth of the inclined plane of the tip part of the needle tube is 1mm, and the tube diameter is 0.5 mm;
the length of the needle tube with the specification 2 is 31.5mm, the depth of the inclined plane of the tip part of the needle tube is 1mm, and the tube diameter is 0.5 mm. The rest is the same as a 1ml syringe needle commonly sold in the market.
2. Referring to the structure shown in fig. 1, the correspondence among wall thickness, neck, needle tube specification, and penetration depth in different application scenarios (i.e., different organ wall thicknesses) is shown in the following table:
| wall thickness (millimeter) | Clamping groove | Needle type | Length of needle | Penetration depth (mm) |
| 1 | 2 | 1 | 22.5 | 2 |
| 2 | 3 | 1 | 22.5 | 3 |
| 3 | 4 | 1 | 22.5 | 4 |
| 4 | 5 | 1 | 22.5 | 5 |
| 5 | 6 | 1 | 22.5 | 6 |
| 6 | 7 | 1 | 22.5 | 7 |
| 7 | 8 | 1 | 22.5 | 8 |
| 8 | 9 | 1 | 22.5 | 9 |
| 9 | 10 | 1 | 22.5 | 10 |
| 10 | 2 | 2 | 31.5 | 11 |
| 11 | 3 | 2 | 31.5 | 12 |
| 12 | 4 | 2 | 31.5 | 13 |
| 13 | 5 | 2 | 31.5 | 14 |
| 14 | 6 | 2 | 31.5 | 15 |
| 15 | 7 | 2 | 31.5 | 16 |
| 16 | 8 | 2 | 31.5 | 17 |
| 17 | 9 | 2 | 31.5 | 18 |
| 18 | 10 | 2 | 31.5 | 19 |
3. The specific operation steps are to perform puncture urethra staining and displaying on the urinary bladder of a mouse in a non-filling state, and to perform an open operation by using an injection needle with the specification 1 as an example:
1) the operation is fully prepared, the visual field is completely exposed, the urinary bladder of the rat is visible to be positioned in the lower abdominal pelvic cavity, the urinary bladder is in an emptying state, and the operable area is smaller than 1 square centimeter.
2) After the puncture outfit is fully sterilized, the piston bolt 4 is pushed into the vertical notch at the farthest position from the tail end of the sleeve 1 along the second transverse notch 1-3; as the needle point of the commercially available injection needle is usually of an inclined plane structure, if the puncture is to be successful, the inclined plane of the needle point is required to be completely submerged into the inner side of the bladder wall, the depth of the inclined plane of the needle point of the injection needle is about 1.5-2mm, the wall thickness of the bladder of a rat in an emptying state is about 1mm, so that the latch bolt 6-4 is pulled backwards, the spring 6-5 is in a compression state, the needle tube 8 is inserted into the inner sleeve 6 and then is inserted into the inner sleeve 3 after aligning the inner sleeve 6 to the outer sleeve 3, the tip part of the needle tube 8, which is inserted into the orifice of the outer sleeve 8, extends about 3mm from the orifice of the outer sleeve 8, the latch bolt 6-4 is loosened, the push rod 6-3 is pushed by the latch bolt under the acting force of the spring 6-5 to be inserted into the slot 6-2 of the inner sleeve, the corresponding slot shows that the identification number is 3, the, i.e. a penetration depth of 3 mm.
3) Taking out the injection needle from the inner sleeve and then connecting the injection needle with the injection liquid pipe; and pumping the dyeing liquid for later use.
4) The left hand of the operator places the mouth of the suction tube 1 on the surface of the bladder, the right hand pulls the piston bolt 4 along the first transverse gap 1-1 towards the tail end of the sleeve 1, and clamps the piston bolt 4 in the required vertical gap 1-2, and at the moment, the mouth of the suction tube and the mouth of the outer sleeve are tightly attached to the bladder wall.
5) The side wall of the suction tube 2 is held by the left hand, the prepared injection needle is inserted from the top cap 6-1 of the inner sleeve 6 by the right hand, when the convex part of the needle base is just complemented with the concave surface of the top cap, the tip part of the needle tube is already vertical to the fixed plane, the bladder wall is punctured at the center of the fixed plane by about 3mm, and the needle tip slope also completely enters the bladder.
6) The dyeing liquid is injected slowly, the needle point direction is fixed, the puncture depth is fixed, and the distance between the left hand and the right hand is short, so that the operation of the right hand is stable, and the medicine injection dosage is well controlled. After injection is finished, the injection needle is withdrawn from the needle hole, and the piston bolt 4 is pushed into the vertical notch at the farthest position away from the tail end of the sleeve 1; at this time, the atmospheric pressure in the suction tube is recovered, and the bladder wall is automatically separated from the mouth of the suction tube and the mouth of the outer sleeve tube, so that the operation is finished.
As described above, if it is predicted that the wall thickness of the organ tissue of the animal is 5mm, the injection needle of the standard 1 is selected, and the plunger 6-3 is inserted into the notch 6, at which time the penetration depth is 6 mm.
By analogy, if the wall thickness of the organ tissues of the animal is judged to be 18mm in advance, the injection needle with the specification 2 is selected, the ejector rod 6-3 is inserted into the clamping groove 10, and the penetration depth is 19mm at the moment.
In addition, the correspondence between the wall thickness, the neck, the needle tube specification, and the penetration depth is only one correspondence, and specific numbers are not limited to the above list, and a puncture outfit with an equal magnification or equal reduction size can be designed according to different application scenarios.
Claims (10)
1. The utility model provides a single-person operation's animal cavity viscera puncture ware, includes the pipe box subassembly, sets up in the pipe box subassembly and be used for making piston assembly, the syringe needle that produces the negative pressure in the pipe box, its characterized in that: the sleeve assembly comprises a sleeve (1) and an outer sleeve (3) for inserting an injection needle, the front end of the sleeve is connected with a suction pipe (2), and the dirty wall of the device is attached to the opening of the suction pipe (2) through negative pressure generated by the displacement of the piston assembly; one end of the outer sleeve is arranged on the side wall of the sleeve or the side wall of the suction pipe, and the other end of the outer sleeve is positioned in the suction pipe or outside the suction pipe.
2. The puncture instrument according to claim 1, wherein: the mouth of the outer sleeve is flush with the mouth of the suction pipe or slightly protrudes out of the mouth of the suction pipe.
3. The puncture instrument according to claim 2, wherein: a first transverse notch (1-1) is arranged on the side wall of the tail end of the sleeve along the axial direction of the sleeve, and a plurality of vertical notches (1-2) are arranged along one side or two sides of the first transverse notch; the piston assembly comprises a piston bolt (4) and a piston column (5) arranged in the sleeve, wherein one end of the piston bolt is fixed on the piston column, the other end of the piston bolt extends out of the side wall of the sleeve from the first transverse notch (1-1) or the vertical notch (1-2), and the piston column displaces along the first transverse notch and is buckled in different vertical notches through the piston bolt to adjust the negative pressure in the suction pipe.
4. A puncture instrument according to claim 3, characterized in that: the outer sleeve is also provided with an inner sleeve (6) which is convenient for the insertion of an injection needle, the inner sleeve comprises an inner sleeve tube body and a top cap (6-1) arranged at the top of the inner sleeve tube body, and the whole top cap is concave; the injection needle comprises a needle seat (7) and a needle tube (8) arranged on the needle seat, wherein the needle seat is wholly convex and is matched with the top cap.
5. The puncture instrument according to claim 4, wherein: the outer side wall of the inner sleeve pipe body is also provided with a plurality of inner sleeve pipe clamping grooves (6-2) and a bolt component matched with the inner sleeve pipe clamping grooves; the side wall of the sleeve is provided with a channel for inserting the bolt component, and the bolt component is arranged in the channel in a telescopic mode.
6. The puncture instrument according to claim 5, wherein: the bolt assembly comprises a top rod (6-3) inserted into the inner sleeve clamping groove, a bolt (6-4) used for driving the top rod to move back and forth, and a spring (6-5) used for applying a force to the top rod; one end of the spring is connected with the closed end of the channel, and the other end of the spring is connected with the ejector rod; and a second transverse notch (1-3) for the front and rear displacement of the bolt is further arranged on the side wall of the sleeve along the axial direction of the sleeve, one end of the bolt is fixed on the ejector rod, and the other end of the bolt extends out of the side wall of the sleeve from the second transverse notch.
7. The puncture instrument according to claim 6, wherein: the outer side wall of the inner sleeve pipe body is also provided with an identification number (6-6) corresponding to the inner sleeve pipe clamping groove.
8. A puncture instrument according to any 1 of claims 5 to 7, characterized in that: on the same inner sleeve axial section, inner sleeve clamping grooves (6-2) are uniformly distributed on the side wall of the inner sleeve at equal intervals, and each clamping groove corresponds to different identification numbers; or the inner sleeve clamping grooves (6-2) are uniformly distributed on the side wall of the inner sleeve in a spiral shape at equal intervals, and each clamping groove corresponds to different identification numbers.
9. A puncture instrument according to any 1 of claims 3 to 7, characterized in that: the first transverse notch is rectangular, the vertical notches are rectangular, and the vertical notches are distributed on one side or two sides of the first transverse notch at equal intervals; the first transverse notch is vertical to the vertical notch.
10. A puncture instrument according to any 1 of claims 1 to 7, characterized in that: the included angle between the cross section of the sleeve (1) and the cross section of the suction pipe (2) is less than 90 degrees; the outer sleeve is parallel to the axis of the suction pipe; the pipe orifice of the outer sleeve and the pipe orifice of the suction port are both subjected to fillet treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921187992.8U CN210903474U (en) | 2019-07-25 | 2019-07-25 | Animal cavity viscera puncture outfit operated by single person |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921187992.8U CN210903474U (en) | 2019-07-25 | 2019-07-25 | Animal cavity viscera puncture outfit operated by single person |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210903474U true CN210903474U (en) | 2020-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921187992.8U Expired - Fee Related CN210903474U (en) | 2019-07-25 | 2019-07-25 | Animal cavity viscera puncture outfit operated by single person |
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|---|---|
| CN (1) | CN210903474U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110353854A (en) * | 2019-07-25 | 2019-10-22 | 江苏省人民医院（南京医科大学第一附属医院） | Animal cavity viscera puncture outfit operated by single person |
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2019
- 2019-07-25 CN CN201921187992.8U patent/CN210903474U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110353854A (en) * | 2019-07-25 | 2019-10-22 | 江苏省人民医院（南京医科大学第一附属医院） | Animal cavity viscera puncture outfit operated by single person |
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