CN113397707A - Auxiliary measurement assembly and auxiliary measurement method thereof - Google Patents
Auxiliary measurement assembly and auxiliary measurement method thereof Download PDFInfo
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- CN113397707A CN113397707A CN202110807415.XA CN202110807415A CN113397707A CN 113397707 A CN113397707 A CN 113397707A CN 202110807415 A CN202110807415 A CN 202110807415A CN 113397707 A CN113397707 A CN 113397707A
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- 238000000691 measurement method Methods 0.000 title claims abstract description 9
- 238000005259 measurement Methods 0.000 title claims description 12
- 238000007920 subcutaneous administration Methods 0.000 claims abstract description 33
- 238000000034 method Methods 0.000 claims abstract description 12
- 238000002601 radiography Methods 0.000 claims abstract description 9
- 210000004731 jugular vein Anatomy 0.000 claims description 32
- 238000001631 haemodialysis Methods 0.000 claims description 31
- 230000000322 hemodialysis Effects 0.000 claims description 31
- 238000001727 in vivo Methods 0.000 claims description 18
- 238000002513 implantation Methods 0.000 claims description 12
- 239000003550 marker Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 6
- 239000007769 metal material Substances 0.000 claims description 5
- 210000002837 heart atrium Anatomy 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims 1
- 229920001296 polysiloxane Polymers 0.000 claims 1
- 210000005245 right atrium Anatomy 0.000 abstract description 11
- 210000002620 vena cava superior Anatomy 0.000 abstract description 11
- 210000000038 chest Anatomy 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000000741 silica gel Substances 0.000 description 3
- 229910002027 silica gel Inorganic materials 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 210000004204 blood vessel Anatomy 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000502 dialysis Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 238000011976 chest X-ray Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000002594 fluoroscopy Methods 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002746 orthostatic effect Effects 0.000 description 1
- 206010033675 panniculitis Diseases 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 210000004304 subcutaneous tissue Anatomy 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000000779 thoracic wall Anatomy 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/20—Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/06—Measuring instruments not otherwise provided for
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/20—Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
- A61B2034/2046—Tracking techniques
- A61B2034/2065—Tracking using image or pattern recognition
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/06—Measuring instruments not otherwise provided for
- A61B2090/061—Measuring instruments not otherwise provided for for measuring dimensions, e.g. length
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
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Abstract
The invention discloses an auxiliary measuring assembly and an auxiliary measuring method, belonging to the technical field of medical instruments, wherein the auxiliary measuring assembly comprises a first marking clamp, the first marking clamp comprises a first clamping part and a second clamping part, the first end of the first clamping part is arranged at the first end of the second clamping part, the second end of the first clamping part is provided with a first hook, the second end of the second clamping part is provided with a second hook, when the first hook is engaged with the second hook, a first clamping hole is formed between the first clamping part and the second clamping part, and the first clamping hole comprises: a first section of a second end side thereof; a second section of the first end side thereof; when the guide wire enters the second section from the first section, the first marking clamp can be fixed on the guide wire; and (4) auxiliary measurement method. The first marking clip can mark the position of a guide wire inlet, the length of the catheter body inlet can be calculated through single chest positive X-ray radiography, the length of a subcutaneous tunnel segment is further determined, and the tip of the catheter is guaranteed to be located at the junction of a superior vena cava and a right atrium.
Description
Technical Field
The invention belongs to the technical field of medical instruments, and particularly relates to an auxiliary measuring assembly and an auxiliary measuring method thereof.
Background
The internal jugular vein semi-permanent hemodialysis pipe (hereinafter referred to as a catheter) is an important dialysis access for hemodialysis treatment. The internal jugular vein semi-permanent hemodialysis tube comprises from a far end to a tip: comprises an external section of a double-cavity tube, a subcutaneous tunnel section and an internal embedding section. Wherein, the total length of the catheter = the external segment length + the subcutaneous tunnel segment length + the length of the internal implantation segment, and the tip of the internal implantation segment of the catheter is positioned at the junction of the superior vena cava and the right atrium, so that the dialysis blood flow can be ensured, and the influence of the catheter on the heart can be reduced.
In the semi-permanent canal implantation of the internal jugular vein, the length of the implanted segment in the body is usually determined by body surface positioning, and the body surface at the junction of the superior vena cava and the right atrium is usually projected in the third rib or the three-four rib space. However, the length error of the internal implantation section determined by the body surface positioning method is large, and the position of the tip of the internal implantation section is usually found to be too deep or too shallow by conventional chest X-ray radiography, but at the moment, a hemodialysis tube subcutaneous tunnel section is established, and the position of the catheter is difficult to readjust.
However, the DSA requires high requirements for medical equipment and operation costs, and if multiple dynamic fluoroscopy operations are performed, patients and medical staff are injured by a large dose of radiation. Therefore, there is a need for a safe and effective procedure that can ensure the depth of insertion and the final position of the final tip of the internal jugular hemodialysis tube.
Disclosure of Invention
The invention is provided for solving the problems in the prior art, and aims to provide an auxiliary measuring assembly.A first marking clamp can mark the position of a guide wire inlet, the length of an embedded section in a catheter body can be calculated through single chest positive X-ray radiography, the length of a subcutaneous tunnel section is further determined, and the tip of the catheter is ensured to be positioned at the junction of a superior vena cava and a right atrium.
The second objective of the present invention is to provide an auxiliary measuring method for an auxiliary measuring assembly.
In order to achieve the above object, an auxiliary measuring assembly according to an aspect of the present invention includes a first mark clip fixed to a guide wire, the first mark clip is made of a metal material, the first mark clip includes a first end and a second end along a length direction thereof, the first mark clip includes a first clamping portion and a second clamping portion that are disposed opposite to each other, a first end of the first clamping portion is disposed at a first end of the second clamping portion, a second end of the first clamping portion is disposed with a first hook, a second end of the second clamping portion is disposed with a second hook that can be engaged with or disengaged from the first hook, when the first hook is engaged with the second hook, a first clamping hole is formed between the first clamping portion and the second clamping portion, and the first clamping hole includes: a first section at a second end side thereof, the first section having a width a; a second section at the first end side of the first clamping hole, the second section having a width b, wherein b < a; and the width of the third section is gradually reduced from the second end side to the first end side of the third section, and when the guide wire enters the second section from the first section, the first mark clamp can be fixed on the guide wire.
Further, the auxiliary measuring assembly further comprises a scale device, the scale device comprising:
the scale comprises a scale, wherein a first scale mark along the length direction of the scale is arranged on one side wall of the scale, and a zero scale mark of the first scale mark is arranged at one end of the scale;
the sliding seat is arranged on the scale in a sliding mode along the length direction of the scale;
a second mark presss from both sides for being fixed in the pipe, second mark press from both sides detachable install in on the sliding seat, the second mark presss from both sides including third end and the fourth end along its length direction, the second mark presss from both sides including relative third clamping part and the fourth clamping part that sets up, third clamping part third end is located fourth clamping part third end, third clamping part fourth end is equipped with the third hook, fourth clamping part fourth end be equipped with can with the interlock of third hook or the fourth hook that breaks away from, the interlock of third hook in during the fourth hook, the third clamping part with form the second centre gripping hole between the fourth clamping part, the second centre gripping hole includes: a fourth section at a fourth end thereof, said fourth section having a width c; a fifth section on a third end side of the second clamping hole, the fifth section having a width d, wherein d < c; and the width of the sixth section is gradually reduced from the fourth end side to the third end side, and when the guide pipe enters the fifth section from the fourth section, the second mark clamp can be fixed on the guide pipe.
Furthermore, the inner walls of the fourth section, the fifth section and the sixth section are provided with silica gel layers.
Furthermore, one of a clamping seat and a clamping joint is arranged on the outer surface of one end of the sliding seat;
and the outer surface of the third end of the second marking clip is provided with the other of the clamping joint or the clamping seat.
Furthermore, the side wall of the scale where the first scale mark is located is also provided with a second scale mark along the length direction of the scale, and the zero scale mark of the second scale mark is arranged at the other end of the scale.
Further, the sliding seat is equipped with the through-hole with scale cross section assorted, scale slidable mounting in the through-hole, the sliding seat is equipped with the indicating line corresponding to the lateral wall of the first scale mark of scale, the indicating line with the fixed catheter axis collineation setting of second mark clamp, the middle part of this lateral wall is equipped with and runs through the opening wherein along its length direction.
Further, the sliding seat is made of transparent hard materials, and the scale is made of hard materials.
In order to achieve the above object, a second aspect of the present invention provides an auxiliary measuring method for an auxiliary measuring assembly, which performs measurement by using the auxiliary measuring assembly according to any one of the above technical solutions, and the auxiliary measuring method includes the following steps:
fixing the first marking clamp, when the patient is in a horizontal position, puncturing through the internal jugular vein, placing the guide wire from the neck skin entrance, and fixing the first marking clamp at the neck skin entrance of the guide wire;
and obtaining the length of the built-in section of the internal jugular vein semipermanent hemodialysis tube, finishing chest positive X-ray radiography, calling an X-ray image and calculating the length of the built-in section, wherein the length of the built-in section is the length of a guide wire clamped at the junction of the first mark and the upper vena cava atrium.
Further, after obtaining the length of the intracorporeal placement section of the internal jugular vein semi-permanent hemodialysis tube, the method also comprises the following steps:
determining the position of an in-vivo implantation section of the internal jugular vein semi-permanent hemodialysis tube, aligning a zero scale mark of a first scale mark of the scale to the tip of the internal jugular vein semi-permanent hemodialysis tube of the subcutaneous tunnel section, sliding a sliding seat of the scale device to a fixed position according to the length of the in-vivo implantation section, and fixing the second mark clamp on the internal jugular vein semi-permanent hemodialysis tube, wherein the length of the in-vivo implantation section is equal to the scale value of the fixed position corresponding to the first scale mark.
Further, after determining the position of the intracorporeal implantation section of the internal jugular vein semi-permanent hemodialysis tube, the method further comprises the following steps:
and obtaining the length of a subcutaneous tunnel segment of the jugular vein semi-permanent hemodialysis tube, sliding the scale to the far end side of the jugular vein semi-permanent hemodialysis tube to enable a zero scale line of a second scale line of the scale to be aligned to the near end of a double-lumen tube fixed wing of the jugular vein semi-permanent hemodialysis tube, and reading the length of the subcutaneous tunnel segment, wherein the length of the subcutaneous tunnel segment is the scale value of the second scale line of the scale corresponding to the position of the second mark clamp.
According to the invention, the first marking clip is made of a metal material, a metal image can be displayed in the X-ray film, a basis is provided for measuring the length of the built-in section of the catheter in the body, and meanwhile, the first marking clip can be firmly fixed on the guide wire, so that the guide wire is prevented from accidentally sliding into the blood vessel. When the first marking clamp is fixed on the guide wire, the first marking clamp can mark the position of the guide wire placement opening, and the length of the guide wire between the two positions can be determined according to the position of the first marking clamp and the junction of the superior vena cava and the right atrium through single chest orthostatic X-ray radiography, wherein the length is the length of the in-vivo placement section of the catheter; the length of the external section of the tube can be measured outside the patient body by a measuring tool; according to the length of the in-vivo implanted section, a second marking clip of the scale device can slide along the scale and is fixed at the far end of the in-vivo implanted section on the catheter, and a second scale mark of the scale can be used for measuring the distance between the second marking clip and the near end of the double-lumen tube fixed wing, namely the length of the subcutaneous tunnel section; the length of the built-in section in the body can be accurately controlled by designing a subcutaneous tunnel path according to the length of the subcutaneous tunnel section, so that the tip of the catheter after operation is positioned at the junction of the superior vena cava and the right atrium.
Drawings
FIG. 1 is a schematic diagram of a first marker clip of an auxiliary measuring assembly according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a scale arrangement of an auxiliary measurement assembly provided by an embodiment of the invention;
FIG. 3 is a schematic view of the slide block of FIG. 2;
FIG. 4 is a schematic view of the second marker clip of FIG. 2;
fig. 5 is a flowchart of an auxiliary measurement method according to an embodiment of the present invention.
Wherein: 1. a first marker clip; 11. a first clamping portion; 12. a second clamping portion; 13. a first hook; 14. a second hook; 15. a first clamping hole; 151. a first stage; 152. a second stage; 153. a third stage; 2. a scale device; 21. a scale; 211. a first scale mark; 212. a second scale mark; 22. a sliding seat; 221. a clamping seat; 222. a through hole; 223. an indicator line; 224. an opening; 23. a second marker clip; 231. a third clamping part; 232. a fourth clamping portion; 233. a third hook; 234. a fourth hook; 235. a second clamping hole; 2351. a fourth stage; 2352. a fifth stage; 2353. a sixth stage; 236. a clamping head; 237. a silica gel layer;
in the figure, the width of the first segment is a, the width of the second segment is b, the width of the fourth segment is c, and the width of the fifth segment is d.
Detailed Description
The present invention is described in detail below with reference to the accompanying drawings and examples:
the first embodiment is as follows: an embodiment of the present invention provides an auxiliary measuring assembly, as shown in fig. 1, the auxiliary measuring assembly includes a first mark clip 1 for fixing to a guide wire, the first mark clip is made of a metal material, the first mark clip includes a first end and a second end along a length direction thereof, the first mark clip 1 includes a first clamping portion 11 and a second clamping portion 12 which are oppositely disposed, a first end of the first clamping portion 11 is disposed at a first end of the second clamping portion 12, the first clamping portion 11 and the second clamping portion 12 can be integrally formed, a second end of the first clamping portion 11 is provided with a first hook 13, a second end of the second clamping portion 12 is provided with a second hook 14 which can be engaged with or disengaged from the first hook 13, when the first hook 13 is engaged with the second hook 14, a first clamping hole 15 is formed between the first clamping portion 11 and the second clamping portion 12, the first clamping hole includes: a first section 151 on a second end side thereof, the first section having a width a; a second section 152 at the first end side of the first clamping hole 15, the second section having a width b, wherein b < a; the width of the third section 153 between the second end side of the first clamping hole 15 and the first end side thereof is gradually reduced from the second end side to the first end side thereof, the third section 153 has a guiding function, so that the guide wire can easily enter the second section 152 from the first section 151 or enter the first section 151 from the second section 152, and when the guide wire enters the second section 152 from the first section 151, the first marking clamp 1 can be fixed on the outer side of the skin entrance on the guide wire.
The first marking clip 1 is made of metal materials such as iron and stainless steel, can display a metal image in an X-ray film, provides basis for measuring the length of an in-vivo embedded section of the catheter, and can be firmly fixed on the guide wire to prevent the guide wire from accidentally sliding into a blood vessel. When the first marking clip 1 is fixed on the guide wire, the first marking clip 1 can mark the position of the guide wire placement opening, the guide wire length between the two positions can be determined according to the position of the first marking clip 1 and the junction of the superior vena cava and the right atrium through single chest positive position X-ray radiography, the length is the length of the guide wire placed in the body of the catheter, the length of the subcutaneous tunnel segment of the catheter can be determined as the length of the external segment of the catheter can be measured by a measuring tool outside the body of a patient, and the tip of the catheter is ensured to be positioned at the junction of the superior vena cava and the right atrium.
In this embodiment, as shown in fig. 2 to 4, the auxiliary measuring assembly further includes a scale device 2, and the scale device 2 includes a scale 21, a sliding seat 22, and a second mark clamp 23 for fixing to the catheter. A first scale mark 211 is arranged on one side wall of the scale 21 along the length direction of the scale, and a zero scale mark of the first scale mark is arranged at one end of the scale 21; the sliding seat 22 is installed on the scale in a sliding way along the length direction of the scale 21; second marker clamp 23 detachable installs on sliding seat 22, second marker clamp 23 includes along its length direction's third end and fourth end, the second marker clamp is including relative third clamping part 231 and the fourth clamping part 232 that sets up, fourth clamping part third end is connected to third clamping part third end, third clamping part fourth end is equipped with third hook 233, fourth clamping part fourth end is equipped with fourth hook 234 that can interlock or throw off with third hook 233, third hook 233 interlocks when fourth hook 234, form second centre gripping hole 235 between third clamping part 231 and the fourth clamping part 232, second centre gripping hole 235 includes: a fourth section 2351 on the fourth end side, the fourth section having a width c; a fifth section 2352 of the third end side of the second clamping hole 235, the fifth section having a width d, wherein d < c; a sixth section 2353 between the fourth end side and the third end side of the second clamping hole 235, the width of the sixth section gradually decreases from its own fourth end side to its third end side, and the second marker clamp 23 can be secured to the catheter as the catheter enters the fifth section 2352 from the fourth section 2351. Before a subcutaneous tunnel is established, the zero scale mark of the first scale mark 211 of the scale 21 is aligned to the tip of the jugular vein semipermanent hemodialysis tube of the subcutaneous tunnel section, the second marking clip 23 slides along the scale 21 and is fixed on the position, corresponding to the length of the embedded section on the catheter in vivo, of the first scale mark 211, the distance between the second marking clip 23 and the proximal end of the double-cavity tube fixed wing is the length of the subcutaneous tunnel section, the length of the embedded section in vivo can be accurately controlled by accurately planning the length of the external section and the length of the subcutaneous tunnel section which can be accurately measured, and the tip of the catheter after operation is further ensured to be positioned at the junction of the superior vena cava and the right atrium. Specifically, the sliding seat 22 may be made of transparent hard materials such as plastic and acrylic, so as to facilitate observation of the scale marks on the scale 21, and the scale 21 may be made of hard materials such as metal, wood, plastic and acrylic.
Further, as shown in fig. 2 to 4, one of the clamping seat 221 and the clamping head 236 is disposed on an outer surface of one end of the sliding seat 22; the outer surface of the third end of the second mark clamp 23 is provided with the other one of the clamping joint 236 and the clamping seat 221, so that the second mark clamp 23 can be detachably arranged on the sliding seat 22, and when the second mark clamp 23 is arranged on the sliding seat 22, the measurement can be conveniently carried out by using the ruler 21; when the sliding seat 22 and the second marking clip 23 are detached, the catheter can be conveniently bent, so that the subcutaneous tunnel section on the catheter is matched with the tunnel needle, the length of the subcutaneous tunnel is planned in an auxiliary mode, a subcutaneous tunnel with a proper length is further established, and the tip of the catheter after operation is located at the junction of the superior vena cava and the right atrium.
Further, as shown in fig. 4, the inner walls of the fourth section 2351, the fifth section 2352 and the sixth section 2353 are provided with a silica gel layer 237, which is soft and does not damage the conduit, and has anti-slip property, so that the conduit can be fixed on the fifth section 2352.
Further, as shown in fig. 2, a second graduation line 212 is further disposed on the side wall of the ruler 21 where the first graduation line 211 is located, and a zero graduation line of the second graduation line is disposed at the other end of the ruler 21. The second mark clamp 23 can slide along the scale 21, so that the zero scale mark of the first scale mark 211 of the scale 21 can be aligned with the tip of the catheter, and the second mark clamp 23 can be fixed on the catheter according to the measured length of the in-vivo placement section; the zero graduation mark of the second graduation mark 212 can be aligned with the proximal end of the double-lumen tube fixed wing of the catheter, and the length of the subcutaneous tunnel segment of the catheter is read by the position of the second marking clip 23 corresponding to the graduation mark of the second graduation mark 212.
Further, as shown in fig. 2 and 3, the sliding seat 22 is provided with a through hole 222 matched with the cross section of the scale 21, the scale 21 is slidably installed in the through hole, the side wall of the sliding seat 22 corresponding to the first graduation mark 211 of the scale 21 is provided with an indicating line 223, the indicating line is arranged in a collinear way with the axis of the catheter fixed in the second marking clip 23, and the graduation value of the sliding seat 22 corresponding to the first graduation mark 211 or the second graduation mark 212 can be accurately read through the indicating line; the middle part of this lateral wall is equipped with and runs through opening 224 wherein along its length direction, and the accessible is adjusted the opening, and convenient installs slide holder 22 in scale 21, brings the convenience for changing scale 21 or slide holder 22 simultaneously.
Example two: the invention provides an auxiliary measurement method of an auxiliary measurement assembly, which adopts the auxiliary measurement assembly in any one of the technical schemes for measurement, and as shown in fig. 5, the auxiliary measurement method comprises the following steps:
step S1, fixing the first marking clip 1, when the patient is in the horizontal position, puncturing the patient through the internal jugular vein, putting the guide wire into the neck skin entrance, and fixing the first marking clip 1 at the neck skin entrance of the guide wire.
And step S2, obtaining the length of the in-vivo implanted section of the jugular vein semipermanent hemodialysis tube, completing chest positive X-ray radiography, taking an X-ray image to calculate the length of the in-vivo implanted section, wherein the length of the in-vivo implanted section is the length of a guide wire at the junction of the first marking clip 1 and the superior vena cava atrium.
Further, step S2 is followed by step S3 of determining a position of the internal placement section of the internal jugular vein semipermanent hemodialysis tube, aligning a zero graduation mark of the first graduation mark 211 of the scale 21 with a tip of the internal jugular vein semipermanent hemodialysis tube of the subcutaneous tunnel section, sliding the sliding seat 22 of the scale device 2 to a fixed position according to the length of the internal placement section, and fixing the second mark clip 23 on the internal jugular vein semipermanent hemodialysis tube, wherein the length of the internal placement section is equal to a scale value of the fixed position corresponding to the first graduation mark 211.
Further, step S3 is followed by step S4 of obtaining a length of a subcutaneous tunnel segment of the internal jugular vein semi-permanent hemodialysis tube, sliding the scale 21 towards the distal side of the internal jugular vein semi-permanent hemodialysis tube, aligning the zero graduation line of the second graduation line 212 of the scale 21 with the proximal end of the double lumen tube fixed wing of the internal jugular vein semi-permanent hemodialysis tube, and reading a length of the subcutaneous tunnel segment, where the length of the subcutaneous tunnel segment is a graduation value of the second graduation line 212 of the second mark clip 23 corresponding to the position of the scale 21.
In the operation, when the catheter is placed into a human body, a subcutaneous tunnel path can be designed according to the length of the subcutaneous tunnel section, a subcutaneous tunnel is established between a neck incision and a chest wall outlet, the subcutaneous tissue is expanded twice along the guide wire by the expansion tube, the expandable catheter which can be torn off is placed along the steel wire, the guide wire is withdrawn, the catheter is placed into the catheter according to the conventional method, and the catheter is fixed and bandaged according to the conventional method after the operation, so that the operation is completed.
The auxiliary measuring method of the auxiliary measuring component uses the auxiliary measuring component of any technical scheme, so that all the beneficial effects are achieved, and the description is omitted.
In the auxiliary measurement method of the auxiliary measurement assembly, before the catheter is placed into a human body, the length of an in-vivo placed section of the catheter is determined according to the length of a guide wire of a junction of a first marking clip 1 and an upper vena cava in a single chest positive X-ray radiography, and then the length of a subcutaneous tunnel section is accurately measured by using a scale device 2 according to the length of the in-vivo placed section and the length of the in-vitro section, so that when the catheter is placed into the human body, the tip of the catheter is ensured to be positioned at the junction of the upper vena cava and the right atrium through the accurately controlled length of the in.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides an auxiliary measuring subassembly, its characterized in that, auxiliary measuring subassembly is including being used for being fixed in the first mark clamp of seal wire, first mark clamp adopts metal material to make, first mark clamp includes first end and the second end along its length direction, first mark clamp is including relative first clamping part and the second clamping part that sets up, first clamping part first end is located second clamping part first end, first clamping part second end is equipped with first hook, second clamping part second end is equipped with the second hook that can interlock or throw off with first hook, first hook interlock in during the second hook, first clamping part with form first centre gripping hole between the second clamping part, first centre gripping hole includes: a first section at a second end side thereof, the first section having a width a; a second section at the first end side of the first clamping hole, the second section having a width b, wherein b < a; and the width of the third section is gradually reduced from the second end side to the first end side of the third section, and when the guide wire enters the second section from the first section, the first mark clamp can be fixed on the guide wire.
2. An auxiliary measuring assembly according to claim 1, wherein the auxiliary measuring assembly further comprises a scale device comprising:
the scale comprises a scale, wherein a first scale mark along the length direction of the scale is arranged on one side wall of the scale, and a zero scale mark of the first scale mark is arranged at one end of the scale;
the sliding seat is arranged on the scale in a sliding mode along the length direction of the scale;
a second mark presss from both sides for being fixed in the pipe, second mark press from both sides detachable install in on the sliding seat, the second mark presss from both sides including third end and the fourth end along its length direction, the second mark presss from both sides including relative third clamping part and the fourth clamping part that sets up, third clamping part third end is located fourth clamping part third end, third clamping part fourth end is equipped with the third hook, fourth clamping part fourth end be equipped with can with the interlock of third hook or the fourth hook that breaks away from, the interlock of third hook in during the fourth hook, the third clamping part with form the second centre gripping hole between the fourth clamping part, the second centre gripping hole includes: a fourth section at a fourth end thereof, said fourth section having a width c; a fifth section on a third end side of the second clamping hole, the fifth section having a width d, wherein d < c; and the width of the sixth section is gradually reduced from the fourth end side to the third end side, and when the guide pipe enters the fifth section from the fourth section, the second mark clamp can be fixed on the guide pipe.
3. The auxiliary measuring assembly of claim 2, wherein the inner walls of the fourth, fifth and sixth sections are provided with a silicone layer.
4. The auxiliary measuring assembly of claim 2, wherein the outer surface of one end of the sliding seat is provided with one of a clamping seat and a clamping joint;
and the outer surface of the third end of the second marking clip is provided with the other of the clamping joint or the clamping seat.
5. An auxiliary measuring assembly according to claim 2, wherein the side wall of the scale on which the first graduation marks are located is further provided with a second graduation mark along the length thereof, and the zero graduation mark of the second graduation mark is provided at the other end of the scale.
6. The auxiliary measuring assembly of claim 5, wherein the sliding base is provided with a through hole matching with a cross section of the scale, the scale is slidably installed in the through hole, a side wall of the sliding base corresponding to the first graduation line of the scale is provided with an indication line, the indication line is arranged in line with a catheter axis fixed by the second marker clip, and a middle portion of the side wall is provided with an opening penetrating therethrough along a length direction thereof.
7. The auxiliary measuring assembly of claim 6, wherein the sliding seat is made of a transparent hard material and the scale is made of a hard material.
8. An auxiliary measuring method of an auxiliary measuring assembly, characterized in that the auxiliary measuring assembly according to any one of claims 1 to 7 is used for measurement, and the auxiliary measuring method comprises the following steps:
fixing the first marking clamp, when the patient is in a horizontal position, puncturing through the internal jugular vein, placing the guide wire from the neck skin entrance, and fixing the first marking clamp at the neck skin entrance of the guide wire;
and obtaining the length of the built-in section of the internal jugular vein semipermanent hemodialysis tube, finishing chest positive X-ray radiography, calling an X-ray image and calculating the length of the built-in section, wherein the length of the built-in section is the length of a guide wire clamped at the junction of the first mark and the upper vena cava atrium.
9. An auxiliary measurement method of an auxiliary measurement assembly as in claim 8, wherein after obtaining the length of the intracorporeal indwelling length of the internal jugular vein semi-permanent hemodialysis tube, further comprising:
determining the position of an in-vivo implantation section of the internal jugular vein semi-permanent hemodialysis tube, aligning a zero scale mark of a first scale mark of the scale to the tip of the internal jugular vein semi-permanent hemodialysis tube of the subcutaneous tunnel section, sliding a sliding seat of the scale device to a fixed position according to the length of the in-vivo implantation section, and fixing the second mark clamp on the internal jugular vein semi-permanent hemodialysis tube, wherein the length of the in-vivo implantation section is equal to the scale value of the fixed position corresponding to the first scale mark.
10. An auxiliary measurement method of an auxiliary measurement assembly as claimed in claim 9, wherein after determining the position of the intracorporeal indwelling equipment of the internal jugular vein semi-permanent hemodialysis tube, further comprising:
and obtaining the length of a subcutaneous tunnel segment of the jugular vein semi-permanent hemodialysis tube, sliding the scale to the far end side of the jugular vein semi-permanent hemodialysis tube to enable a zero scale line of a second scale line of the scale to be aligned to the near end of a double-lumen tube fixed wing of the jugular vein semi-permanent hemodialysis tube, and reading the length of the subcutaneous tunnel segment, wherein the length of the subcutaneous tunnel segment is the scale value of the second scale line of the scale corresponding to the position of the second mark clamp.
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