CN101825508B - Quality detection-oriented method for measuring atraumatic hemostatic forceps jaw clamping force - Google Patents

Quality detection-oriented method for measuring atraumatic hemostatic forceps jaw clamping force Download PDF

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Publication number
CN101825508B
CN101825508B CN2010101544387A CN201010154438A CN101825508B CN 101825508 B CN101825508 B CN 101825508B CN 2010101544387 A CN2010101544387 A CN 2010101544387A CN 201010154438 A CN201010154438 A CN 201010154438A CN 101825508 B CN101825508 B CN 101825508B
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Prior art keywords
jaw
hemostatic forceps
clamping force
force
jaw clamping
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CN2010101544387A
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CN101825508A (en
Inventor
闫士举
王殊轶
周颖
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University of Shanghai for Science and Technology
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University of Shanghai for Science and Technology
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Abstract

The invention discloses a quality detection-oriented method for measuring atraumatic hemostatic forceps jaw clamping force, comprising the following steps: 1) preparing a specimen to be detected; 2) preliminarily adjusting the jaw positioning and dynamometric mechanism of an atraumatic hemostatic forceps jaw clamping force measuring device; 3) adjusting the jaw hinge hole positioning mechanism of the atraumatic hemostatic forceps jaw clamping force measuring device and positioning the jaw hinge hole; and 4) adjusting the finger cot force applying and positioning mechanism of the atraumatic hemostatic forceps jaw clamping force measuring device step by step. The measurement method in the invention facilitates manufacturers to accurately measure the jaw clamping force of hemostatic forceps with proven models or still in an improved trail-production stage so as to identify quality.

Description

Measuring method towards the non-traumatic hemostatic forceps jaw clamping force of quality testing
Technical field
The present invention relates to medicine equipment detection technique field, particularly relate to a kind of measuring method of the non-traumatic hemostatic forceps jaw clamping force towards quality testing.
Background technology
In the hospital surgery clinical practice, hemostatic forceps is a kind of medicine equipment commonly used.In the operation, the hemostatic forceps jaw is clamped to the process of closure state from open configuration, the clamping force between two jaws be one from zero process that increases gradually.The size of clamping force is directly related with the deformation extent of pincers shank.
In clamping process early stage, the tooth button interlock number of pincers handle end is less, and pincers handle deformation extent is less, and the clamping force between two jaws is also less.Along with increasing gradually of pincers handle terminal teeth button interlock number, the deformation extents of two pincers handles increase gradually, and are corresponding, and the clamping force between two jaws also increases gradually.During to the whole interlock of all tooth button, the clamping force between two jaws reaches maximum.The doctor utilizes this corresponding relation just, will clamp the tooth button interlock number of handle end and adjust to suitable degree in operation, to obtain sizeable clamping force at the jaw place.Whether jaw clamping force size the suitable operation quality that having a strong impact on.If clamping force is too little, then jaw does not have enough clamping actions to blood vessel, can cause oozing of blood to a certain degree.If clamping force is too big,, makes troubles and cause unnecessary damages to the patient to operation even then jaw will crush blood vessel and cause the cracked of blood vessel.
Current, the same model hemostatic forceps that different vendor produces difference to some extent all aspect material and specification, even this causes the tooth button at pincers handle terminal occlusion similar number, the clamping force at jaw place also is not quite similar, and this difference will directly have influence on the clinical result of use of hemostatic forceps.For the ease of production firm hemostatic forceps that has ripe model now or the hemostatic forceps that is in the improvement advanced development are carried out jaw clamping force measuring accurately,, need to determine a kind of accurately rational hemostatic forceps jaw clamping force measuring method to carry out the quality identification.
Find that through literature search the patent No. is that the Chinese utility model patent " hemostatic forceps " (notification number is CN201139601Y) of ZL200820016910.9 discloses a kind of novel hemostatic forceps to prior art.This patent has solved the defective of conventional hemostatic forceps jaw root easy soft tissue injury in operation by the front end of two tong arms and the junction of jaw inner side plane are designed to former cambered surface.But this patent only limits to the shaped design of jaw part to the improvement of hemostatic forceps, can not realize the accurate measurement to the jaw clamping force.Application number is the measurement method of adjustment that 200710185338.9 Chinese invention patent " the measurement method of adjustment and the measuring system of clamping force of coke oven tamping tool hammer rod " (notification number is CN101206151A) discloses a kind of clamping force of coke oven tamping tool hammer rod.This patent relates to clamping force to be measured, but its application adheres to different fields separately with the medicine equipment detection, and position to be detected and testing conditions also differ greatly with the measurement of hemostatic forceps jaw clamping force.Up to the present, still there is not the method that hemostatic forceps jaw clamping force is measured that is specifically designed to.
Summary of the invention
For overcoming the deficiency of above-mentioned prior art, the technical problem to be solved in the present invention provides a kind of non-traumatic hemostatic forceps jaw clamping force measuring method towards quality testing, thereby be convenient to production firm hemostatic forceps that has ripe model now or the hemostatic forceps that is in the improvement advanced development are carried out jaw clamping force measuring accurately, to carry out the quality identification.
For solving the problems of the technologies described above, technical scheme of the present invention is:
A kind of measuring method of the non-traumatic hemostatic forceps jaw clamping force towards quality testing, this method comprises following four steps:
Step 1, prepare test specimen to be detected, under the prerequisite of not destroying two tong arms, both are separated;
Step 2, just adjust the jaw location and the force measuring machine of non-traumatic hemostatic forceps jaw clamping force measurement mechanism;
The jaw pan detent mechanism of step 3, adjustment non-traumatic hemostatic forceps jaw clamping force measurement mechanism, and carry out jaw pan location;
The cover that step 4, substep are adjusted non-traumatic hemostatic forceps jaw clamping force measurement mechanism refers to enclose the application of force and detent mechanism, every one step of adjustment, make cover refer to enclose the distance of advancing a tooth button towards left front, the jaw location and the force measuring machine of corresponding fine setting non-traumatic hemostatic forceps jaw clamping force measurement mechanism, and read jaw normal pressure data.
In the described step 2, just adjust and be meant measurement mechanism under light condition, make the force cell left end measuring point on jaw location and the force measuring machine be in zero-bit.
In the step 3, test specimen right hand cover to be detected is referred to that the tong arm that encloses the place is positioned on the pin of jaw pan detent mechanism by the jaw pan.
Compared with prior art, beneficial effect of the present invention can be:
The invention provides a kind of non-traumatic hemostatic forceps jaw clamping force measuring method towards quality testing.Adopt this method, rely on custom-designed measurement mechanism, can accurately measure various types of non-traumatic hemostatic forceps jaw clamping forces.The gained measurement data will provide technical support for non-traumatic hemostatic forceps production firm aspect following two: 1, helping provides foundation for the non-traumatic hemostatic forceps quality testing of certain existing model; 2, aid in improved is in the hemostatic forceps of advanced development, to realize the scientific optimization design of new model non-traumatic hemostatic forceps.
By the non-traumatic hemostatic forceps jaw clamping force measuring method of the present invention towards quality testing, the measurement of correlation data of gained measurement data and existing standard or existing ripe non-traumatic hemostatic forceps compare, and can be used for test specimen to be detected is carried out the quality identification.
The present invention is simple, easy to operate towards the non-traumatic hemostatic forceps jaw clamping force measuring method principle of quality testing, gets final product hands-on through simple training.The present invention relies on non-traumatic hemostatic forceps jaw clamping force measurement mechanism, can satisfy multiple model and specification non-traumatic hemostatic forceps jaw clamping force measurements such as straight peen, elbow, knuckle head, bow-backed head, staight shank, curved handle.
Description of drawings
Fig. 1 is relied on non-traumatic hemostatic forceps jaw clamping force measurement mechanism sketch by the present invention
Fig. 2 is the non-traumatic hemostatic forceps jaw clamping force measuring method process flow diagram of the present invention towards quality testing
Embodiment
Specific embodiments of the present invention are further described in detail below in conjunction with drawings and Examples, but should not limit protection scope of the present invention with this.
The non-traumatic hemostatic forceps jaw clamping force measurement mechanism that the present invention relied on is by base, and jaw pan detent mechanism, jaw location and force measuring machine, cover refer to enclose the application of force and detent mechanism four parts formation.Jaw pan detent mechanism is fixed on the base, and the pin on it is used for non-traumatic hemostatic forceps jaw pan is positioned.Jaw location and force measuring machine have move forward and backward, move up and down, and move left and right three degree of freedom, force cell on it directly contacts with jaw to be measured, can realize the location and the normal pressure measurement in force to be measured on the hemostatic forceps jaw easily, the digital display instrument then is used for the demonstration of measurement data.Be carved with scale mark on jaw location and the force measuring machine, to be used for the location of force-detecting position on the force cell.Cover refers to enclose the application of force and detent mechanism to have and moves forward and backward and two degree of freedom of move left and right, and the register pin on it directly refers to that with hemostatic forceps pincers shank cover the inwall that encloses contact, can realize easily that cover refers to draw a circle to approve and the application of force.Cover refers to enclose on the application of force and the detent mechanism and is carved with scale mark, refers to enclose the location of distance of moving to left to be used to overlap.
The measurement mechanism of above-mentioned non-traumatic hemostatic forceps jaw clamping force comprises: base, jaw pan detent mechanism, jaw location and force measuring machine, and cover refer to enclose the application of force and detent mechanism.Described jaw pan detent mechanism is fixed in the middle part of the upper surface of base, is used for the location of non-traumatic hemostatic forceps jaw pan; Described jaw location and force measuring machine slide before and after can doing along the thick plate-like structure of base by dovetail groove, to adapt on the jaw force-detecting position to the difference of horizontal range between the jaw pan; Described cover refers to enclose the application of force and detent mechanism can be done the front and back slip along the thick plate-like structure of base by dovetail groove, to adapt to the difference that cover refers to enclose distance between the jaw pan.
In the described jaw pan detent mechanism, the convex block structure is fixed on the middle part of the upper surface of base, jaw pan detent mechanism disk-like structure is installed on the left surface of the narrow portion in convex block structure upper end, and pin is fixed on the jaw pan detent mechanism disk-like structure.
In described jaw location and the force measuring machine, upright slide block can be done along upright piece by dovetail groove and slide up and down; Cross sliding clock can be done along upright slide block by dovetail groove and horizontally slip; Force cell is fixed on the left side of cross sliding clock; The digital display instrument links to each other with force cell by lead.
Described cover refers to enclose in the application of force and the detent mechanism, and register pin is connected cover and refers to enclose on the application of force and the detent mechanism disk-like structure; Cover refers to enclose the application of force and the detent mechanism disk-like structure refers to enclose the application of force by cover and the detent mechanism coupling bolt is connected on the left surface of top shoe; Top shoe can be done along sliding block by dovetail groove and horizontally slip.
The present invention comprises following four steps towards the non-traumatic hemostatic forceps jaw clamping force measuring method of quality testing:
In the 1st step, be ready to test specimen to be detected.Test specimen can be the non-traumatic hemostatic forceps finished product of certain existing model of pending quality testing, also can be the trial-production part that is in certain new model non-traumatic hemostatic forceps in trial-production improvement stage.After determining good test specimen to be detected, under the prerequisite of not destroying any part on the tong arm, two tong arms are separated.
In the 2nd step,, rely on the jaw location of non-traumatic hemostatic forceps jaw clamping force measurement mechanism and force measuring machine to carry out just adjusting to the present invention according to the specification of test specimen to be detected.Under light condition, make the force cell left end measuring point in jaw location and the force measuring machine be in zero-bit.The definite of zero-bit can carry out according to the scale mark on jaw location and the force measuring machine.
In the 3rd step,, rely on the jaw pan detent mechanism of non-traumatic hemostatic forceps jaw clamping force measurement mechanism to adjust to the present invention according to the specification of test specimen to be detected.After the adjustment test specimen right hand cover to be detected is referred to that the tong arm that encloses the place is fixed on the pin of jaw pan detent mechanism by the jaw pan.At this moment, the present invention relies on the jaw location and the force measuring machine of non-traumatic hemostatic forceps jaw clamping force measurement mechanism, force cell left end measuring point on it and the determined virtual plane of jaw pan axis rely on the left surface of non-traumatic hemostatic forceps jaw clamping force measurement mechanism base parallel with the present invention.
In the 4th step,, rely on the cover of non-traumatic hemostatic forceps jaw clamping force measurement mechanism to refer to enclose the application of force and detent mechanism to the present invention and carry out the substep adjustment according to the specification of test specimen to be detected.In one step of every adjustment, make cover refer to enclose the distance of advancing a tooth button towards left front.Forward travel distance can be determined according to the scale mark that cover refers to enclose on the application of force and the detent mechanism.Every one step of adjustment cover refers to enclose the application of force and detent mechanism, correspondingly jaw location and force measuring machine is finely tuned, and moves to right owing to the stressed force cell left end measuring point that causes with compensation.After the fine setting, force cell left end measuring point should be returned to zero-bit.After one step of every adjustment cover refers to enclose the application of force and detent mechanism and jaw location and force measuring machine is finely tuned, read the reading of digital display instrument, to be corresponding test specimen to be detected buckle the clamping force that the jaw place produces when being snapped to corresponding number at the tooth of pincers handle end to this reading.
The contrast accompanying drawing describes in detail below.
As shown in Figure 1, the non-traumatic hemostatic forceps jaw clamping force measurement mechanism 5 that the present invention relied on is by base 1, and jaw pan detent mechanism 2, jaw location and force measuring machine 3, cover refer to enclose the application of force and detent mechanism 4 constitutes.
Wherein, jaw pan detent mechanism 2 is fixed on the base 1, and the pin 24 on it is used for non-traumatic hemostatic forceps jaw pan is positioned.Jaw location and force measuring machine 3 have move forward and backward, move up and down, and move left and right three degree of freedom, force cell 38 on it directly contacts with jaw to be measured, can realize the location and the normal pressure measurement in force to be measured on the hemostatic forceps jaw easily, 39 demonstrations that are used for measurement data of digital display instrument.Be carved with scale mark on jaw location and the force measuring machine 2, to be used for the location of force-detecting position on the force cell 38.Cover refers to enclose the application of force and detent mechanism 4 to have and moves forward and backward and two degree of freedom of move left and right, and the register pin 47 on it directly refers to that with hemostatic forceps pincers shank cover the inwall that encloses contact, can realize easily that cover refers to draw a circle to approve and the application of force.Cover refers to enclose on the application of force and the detent mechanism 4 and is carved with scale mark, refers to enclose the location of distance of moving to left to be used to overlap.
As shown in Figure 2, be the non-traumatic hemostatic forceps jaw clamping force measuring method process flow diagram of the present invention towards quality testing, it comprises following 4 steps altogether:
In the 1st step, be ready to test specimen to be detected.Test specimen can be existing model hemostatic forceps finished product, also can be new model hemostatic forceps trial-production part.Under the prerequisite of not destroying two tong arms, both are separated.
In the 2nd step,, rely on the jaw location of non-traumatic hemostatic forceps jaw clamping force measurement mechanism 5 and force measuring machine 3 to carry out just adjusting to the present invention according to the specification of test specimen to be detected.Under light condition, make the force cell 38 left end measuring points on jaw location and the force measuring machine 3 be in zero-bit.
In the 3rd step,, rely on the jaw pan detent mechanism 2 of non-traumatic hemostatic forceps jaw clamping force measurement mechanism 5 to adjust to the present invention according to the specification of test specimen to be detected.After the adjustment test specimen right hand cover to be detected is referred to that the tong arm that encloses the place is positioned on the pin 24 of jaw pan detent mechanism 2 by the jaw pan.
In the 4th step,, rely on the cover of non-traumatic hemostatic forceps jaw clamping force measurement mechanism 5 to refer to enclose the application of force and detent mechanism 4 to the present invention and carry out the substep adjustment according to the specification of test specimen to be detected.One step of every adjustment makes cover refer to enclose the distance of advancing a tooth button towards left front, and correspondingly jaw location and force measuring machine 3 is finely tuned, with compensation since the stressed force cell that causes 38 left end measuring points move to right.After one step of every adjustment cover refers to enclose the application of force and detent mechanism 4 and jaw location and force measuring machine 3 is finely tuned, read the reading of digital display instrument 39, to be corresponding test specimen to be detected buckle the clamping force that the jaw place produces when being snapped to corresponding number at the tooth of pincers handle end to this reading.
Adopt the inventive method, can accurately measure various types of non-traumatic hemostatic forceps jaw clamping forces that are in production in enormous quantities state or advanced development, the measurement of correlation data of gained measurement data and existing standard or existing ripe non-traumatic hemostatic forceps compare, to be used for that test specimen to be detected is carried out the quality identification.
The above is preferred embodiment of the present invention only, is not to be used for limiting practical range of the present invention.Have in the technical field under any and know the knowledgeable usually, without departing from the spirit and scope of the present invention, when can being used for a variety of modifications and variations, so protection scope of the present invention should be looked claims institute confining spectrum and is as the criterion.

Claims (2)

1. measuring method towards the non-traumatic hemostatic forceps jaw clamping force of quality testing is characterized in that this method comprises following four steps:
Step 1, prepare test specimen to be detected, under the prerequisite of not destroying two tong arms, both are separated;
Step 2, just adjust the jaw location and the force measuring machine of non-traumatic hemostatic forceps jaw clamping force measurement mechanism, just adjust and be meant measurement mechanism under light condition, make the force cell left end measuring point on jaw location and the force measuring machine be in zero-bit;
The jaw pan detent mechanism of step 3, adjustment non-traumatic hemostatic forceps jaw clamping force measurement mechanism, and carry out jaw pan location;
The cover that step 4, substep are adjusted non-traumatic hemostatic forceps jaw clamping force measurement mechanism refers to enclose the application of force and detent mechanism, every one step of adjustment, make cover refer to enclose the distance of advancing a tooth button towards left front, the jaw location and the force measuring machine of corresponding fine setting non-traumatic hemostatic forceps jaw clamping force measurement mechanism, and read jaw normal pressure data.
2. the measuring method of the non-traumatic hemostatic forceps jaw clamping force towards quality testing according to claim 1, it is characterized in that in the step 3, test specimen right hand cover to be detected is referred to that the tong arm that encloses the place is positioned on the pin of jaw pan detent mechanism by the jaw pan.
CN2010101544387A 2010-04-23 2010-04-23 Quality detection-oriented method for measuring atraumatic hemostatic forceps jaw clamping force Expired - Fee Related CN101825508B (en)

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CN111829578B (en) * 2020-05-29 2022-03-01 成都博恩思医学机器人有限公司 Instrument testing method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7144402B2 (en) * 2003-06-16 2006-12-05 Synovis Life Technologies, Inc. Vascular clamp
CN101206151A (en) * 2007-12-01 2008-06-25 太原重型机械集团有限公司 Method for measuring and regulating clamping force of coke oven tamping tool hammer rod and measuring system
CN201139601Y (en) * 2008-01-23 2008-10-29 孟祥芹 Hemostat
CN101534720A (en) * 2006-09-29 2009-09-16 伊西康内外科公司 Surgical stapling instrument with mechanical indicator to show levels of tissue compression

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7144402B2 (en) * 2003-06-16 2006-12-05 Synovis Life Technologies, Inc. Vascular clamp
CN101534720A (en) * 2006-09-29 2009-09-16 伊西康内外科公司 Surgical stapling instrument with mechanical indicator to show levels of tissue compression
CN101206151A (en) * 2007-12-01 2008-06-25 太原重型机械集团有限公司 Method for measuring and regulating clamping force of coke oven tamping tool hammer rod and measuring system
CN201139601Y (en) * 2008-01-23 2008-10-29 孟祥芹 Hemostat

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